验证码验证不区分访问路径

但要注意：在单个机器上安装API节点和边缘节点，通过局域网IP访问时就无法测试WAF规则，因为会被自动加入到白名单

.gitignore

@@ -0,0 +1,3 @@
+*_plus.go
+*_plus_test.go
+*-plus.sh

.golangci.yaml

@@ -0,0 +1,74 @@
+# https://golangci-lint.run/usage/configuration/
+
+linters:
+  enable-all: true
+  disable:
+    - ifshort
+    - exhaustivestruct
+    - golint
+    - nosnakecase
+    - scopelint
+    - varcheck
+    - structcheck
+    - interfacer
+    - maligned
+    - deadcode
+    - dogsled
+    - wrapcheck
+    - wastedassign
+    - varnamelen
+    - testpackage
+    - thelper
+    - nilerr
+    - sqlclosecheck
+    - paralleltest
+    - nonamedreturns
+    - nlreturn
+    - nakedret
+    - ireturn
+    - interfacebloat
+    - gosmopolitan
+    - gomnd
+    - goerr113
+    - gochecknoglobals
+    - exhaustruct
+    - errorlint
+    - depguard
+    - exhaustive
+    - containedctx
+    - wsl
+    - cyclop
+    - dupword
+    - errchkjson
+    - contextcheck
+    - tagalign
+    - dupl
+    - forbidigo
+    - funlen
+    - goconst
+    - godox
+    - gosec
+    - lll
+    - nestif
+    - revive
+    - unparam
+    - stylecheck
+    - gocritic
+    - gofumpt
+    - gomoddirectives
+    - godot
+    - gofmt
+    - gocognit
+    - mirror
+    - gocyclo
+    - gochecknoinits
+    - gci
+    - maintidx
+    - prealloc
+    - goimports
+    - errname
+    - musttag
+    - forcetypeassert
+    - whitespace
+    - noctx
+    - rowserrcheck

LICENSE

@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2020, LiuXiangChao
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

@@ -0,0 +1 @@
+GoEdge边缘节点源码

build/build-all.sh

@@ -6,3 +6,4 @@
 ./build.sh linux mips64
 ./build.sh linux mips64le
 ./build.sh darwin amd64
+./build.sh darwin arm64

build/build.sh

@@ -3,55 +3,153 @@
 function build() {
 	ROOT=$(dirname $0)
 	NAME="edge-node"
-	VERSION=$(lookup-version $ROOT/../internal/const/const.go)
+	VERSION=$(lookup-version "$ROOT"/../internal/const/const.go)
 	DIST=$ROOT/"../dist/${NAME}"
+	MUSL_DIR="/usr/local/opt/musl-cross/bin"
+	SRCDIR=$(realpath "$ROOT/..")
+
+	# for macOS users: precompiled gcc can be downloaded from https://github.com/messense/homebrew-macos-cross-toolchains
+	GCC_X86_64_DIR="/usr/local/gcc/x86_64-unknown-linux-gnu/bin"
+	GCC_ARM64_DIR="//usr/local/gcc/aarch64-unknown-linux-gnu/bin"
+
 	OS=${1}
 	ARCH=${2}
+	TAG=${3}
 
-	if [ -z $OS ]; then
+	if [ -z "$OS" ]; then
 		echo "usage: build.sh OS ARCH"
 		exit
 	fi
-	if [ -z $ARCH ]; then
+	if [ -z "$ARCH" ]; then
 		echo "usage: build.sh OS ARCH"
 		exit
 	fi
+	if [ -z "$TAG" ]; then
+		TAG="community"
+	fi
 
 	echo "checking ..."
 	ZIP_PATH=$(which zip)
-	if [ -z $ZIP_PATH ]; then
+	if [ -z "$ZIP_PATH" ]; then
 		echo "we need 'zip' command to compress files"
 		exit
 	fi
 
-	echo "building v${VERSION}/${OS}/${ARCH} ..."
-	ZIP="${NAME}-${OS}-${ARCH}-v${VERSION}.zip"
+	echo "building v${VERSION}/${OS}/${ARCH}/${TAG} ..."
+	ZIP="${NAME}-${OS}-${ARCH}-${TAG}-v${VERSION}.zip"
 
 	echo "copying ..."
-	if [ ! -d $DIST ]; then
-		mkdir $DIST
-		mkdir $DIST/bin
-		mkdir $DIST/configs
-		mkdir $DIST/logs
+	if [ ! -d "$DIST" ]; then
+		mkdir "$DIST"
+		mkdir "$DIST"/bin
+		mkdir "$DIST"/configs
+		mkdir "$DIST"/logs
+		mkdir "$DIST"/data
+
+		if [ "$TAG" = "plus" ]; then
+			mkdir "$DIST"/scripts
+			mkdir "$DIST"/scripts/js
+		fi
 	fi
 
-	cp $ROOT/configs/api.template.yaml $DIST/configs
-	cp -R $ROOT/www $DIST/
-	cp -R $ROOT/pages $DIST/
-	cp -R $ROOT/resources $DIST/
+	cp "$ROOT"/configs/api_node.template.yaml "$DIST"/configs
+	cp "$ROOT"/configs/cluster.template.yaml "$DIST"/configs
+	cp -R "$ROOT"/www "$DIST"/
+	cp -R "$ROOT"/pages "$DIST"/
 
-	# we support TOA on linux/amd64 only
-	if [ $OS == "linux" -a $ARCH == "amd64" ]
+	# we support TOA on linux only
+	if [ "$OS" == "linux" ] && [ -f "${ROOT}/edge-toa/edge-toa-${ARCH}" ]
 	then
-		cp -R $ROOT/edge-toa $DIST
+		if [ ! -d  "$DIST/edge-toa" ]
+		then
+			mkdir "$DIST/edge-toa"
+		fi
+		cp "${ROOT}/edge-toa/edge-toa-${ARCH}" "$DIST/edge-toa/edge-toa"
 	fi
 
 	echo "building ..."
-	env GOOS=${OS} GOARCH=${ARCH} go build -o $DIST/bin/${NAME} -ldflags="-s -w" $ROOT/../cmd/edge-node/main.go
+
+	CC_PATH=""
+	CXX_PATH=""
+	CGO_LDFLAGS=""
+	CGO_CFLAGS=""
+	BUILD_TAG=$TAG
+	if [[ `uname -a` == *"Darwin"* && "${OS}" == "linux" ]]; then
+		if [ "${ARCH}" == "amd64" ]; then
+			# build with script support
+			if [ -d $GCC_X86_64_DIR ]; then
+				MUSL_DIR=$GCC_X86_64_DIR
+				CC_PATH="x86_64-unknown-linux-gnu-gcc"
+				CXX_PATH="x86_64-unknown-linux-gnu-g++"
+				if [ "$TAG" = "plus" ]; then
+					BUILD_TAG="plus,script,packet"
+				fi
+			else
+				CC_PATH="x86_64-linux-musl-gcc"
+				CXX_PATH="x86_64-linux-musl-g++"
+			fi
+		fi
+		if [ "${ARCH}" == "386" ]; then
+			CC_PATH="i486-linux-musl-gcc"
+			CXX_PATH="i486-linux-musl-g++"
+		fi
+		if [ "${ARCH}" == "arm64" ]; then
+			# build with script support
+			if [ -d $GCC_ARM64_DIR ]; then
+				MUSL_DIR=$GCC_ARM64_DIR
+				CC_PATH="aarch64-unknown-linux-gnu-gcc"
+				CXX_PATH="aarch64-unknown-linux-gnu-g++"
+				if [ "$TAG" = "plus" ]; then
+					BUILD_TAG="plus,script,packet"
+				fi
+			else
+				CC_PATH="aarch64-linux-musl-gcc"
+				CXX_PATH="aarch64-linux-musl-g++"
+			fi
+		fi
+		if [ "${ARCH}" == "arm" ]; then
+			CC_PATH="arm-linux-musleabi-gcc"
+			CXX_PATH="arm-linux-musleabi-g++"
+		fi
+		if [ "${ARCH}" == "mips64" ]; then
+			CC_PATH="mips64-linux-musl-gcc"
+			CXX_PATH="mips64-linux-musl-g++"
+		fi
+		if [ "${ARCH}" == "mips64le" ]; then
+			CC_PATH="mips64el-linux-musl-gcc"
+			CXX_PATH="mips64el-linux-musl-g++"
+		fi
+	fi
+
+	# libpcap
+	if [ "$OS" == "linux" ] && [[ "$ARCH" == "amd64" || "$ARCH" == "arm64" ]] &&  [ "$TAG" == "plus" ]; then
+		CGO_LDFLAGS="-L${SRCDIR}/libs/libpcap/${ARCH} -lpcap"
+		CGO_CFLAGS="-I${SRCDIR}/libs/libpcap/src/libpcap -I${SRCDIR}/libs/libpcap/src/libpcap/pcap"
+	fi
+
+	if [ ! -z $CC_PATH ]; then
+		env CC=$MUSL_DIR/$CC_PATH \
+		 CXX=$MUSL_DIR/$CXX_PATH GOOS="${OS}" \
+		 GOARCH="${ARCH}" CGO_ENABLED=1 \
+		 CGO_LDFLAGS="${CGO_LDFLAGS}" \
+		 CGO_CFLAGS="${CGO_CFLAGS}" \
+		 go build -trimpath -tags $BUILD_TAG -o "$DIST"/bin/${NAME} -ldflags "-linkmode external -extldflags -static -s -w" "$ROOT"/../cmd/edge-node/main.go
+	else
+		if [[ `uname` == *"Linux"* ]] && [ "$OS" == "linux" ] && [[ "$ARCH" == "amd64" || "$ARCH" == "arm64" ]] &&  [ "$TAG" == "plus" ]; then
+			BUILD_TAG="plus,script,packet"
+		fi
+
+		env GOOS="${OS}" GOARCH="${ARCH}" CGO_ENABLED=1  CGO_LDFLAGS="${CGO_LDFLAGS}" CGO_CFLAGS="${CGO_CFLAGS}" go build -trimpath -tags $BUILD_TAG -o "$DIST"/bin/${NAME} -ldflags="-s -w" "$ROOT"/../cmd/edge-node/main.go
+	fi
+
+	if [ ! -f "${DIST}/bin/${NAME}" ]; then
+		echo "build failed!"
+		exit
+	fi
 
 	# delete hidden files
-	find $DIST -name ".DS_Store" -delete
-	find $DIST -name ".gitignore" -delete
+	find "$DIST" -name ".DS_Store" -delete
+	find "$DIST" -name ".gitignore" -delete
 
 	echo "zip files"
 	cd "${DIST}/../" || exit
@@ -67,15 +165,15 @@ function build() {
 
 function lookup-version() {
 	FILE=$1
-	VERSION_DATA=$(cat $FILE)
+	VERSION_DATA=$(cat "$FILE")
 	re="Version[ ]+=[ ]+\"([0-9.]+)\""
 	if [[ $VERSION_DATA =~ $re ]]; then
 		VERSION=${BASH_REMATCH[1]}
-		echo $VERSION
+		echo "$VERSION"
 	else
 		echo "could not match version"
 		exit
 	fi
 }
 
-build $1 $2
+build "$1" "$2" "$3"

build/configs/.gitignore

@@ -1,4 +1,6 @@
 node.json
 api.yaml
+api_node.yaml
 cluster.yaml
+api_cluster.yaml
 *.cache

build/configs/README.md

@@ -1 +1,2 @@
-* `global.yaml` - 全局配置
+* `api_node.template.yaml` - API相关配置模板
+* `cluster.template.yaml` - 通过集群自动接入节点模板

build/configs/api.template.yaml

@@ -1,4 +0,0 @@
-rpc:
-  endpoints: [ ${endpoints} ]
-nodeId: "${nodeId}"
-secret: "${nodeSecret}"

build/configs/api_node.template.yaml

@@ -0,0 +1,3 @@
+rpc.endpoints: [ "" ]
+nodeId: ""
+secret: ""

build/data/.gitignore

@@ -0,0 +1 @@
+*

build/edge-toa/.gitignore

@@ -1 +0,0 @@
-edge-toa

build/pages/403.html

@@ -9,7 +9,7 @@
 <h3>403 Forbidden</h3>
 <p>Sorry, your access to the page has been denied. Please try again later.</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/pages/404.html

@@ -9,7 +9,7 @@
 <h3>404 Not Found</h3>
 <p>Sorry, the page you are looking for is not found. Please try again later.</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/pages/50x.html

@@ -9,7 +9,7 @@
 <h3>An error occurred.</h3>
 <p>Sorry, the page you are looking for is currently unavailable. Please try again later.</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/pages/shutdown_en.html

@@ -9,7 +9,7 @@
 <h3>The website is shutdown.</h3>
 <p>Sorry, the page you are looking for is currently unavailable. Please try again later.</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/pages/shutdown_upgrade_zh.html

@@ -9,7 +9,7 @@
 <h3>网站升级中</h3>
 <p>为了给您提供更好的服务，我们正在升级网站，请稍后重新访问。</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/pages/shutdown_zh.html

@@ -9,7 +9,7 @@
 <h3>网站暂时关闭</h3>
 <p>网站已被暂时关闭，请耐心等待我们的重新开通通知。</p>
 
-<footer>Powered by TeaEdge.</footer>
+<footer>Powered by GoEdge.</footer>
 
 </body>
 </html>

build/test.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+TAG=${1}
+
+if [ -z "$TAG" ]; then
+	TAG="community"
+fi
+
+go test -v ../... -tags=${TAG}

cmd/edge-node/main.go

@@ -1,30 +1,129 @@
 package main
 
 import (
+	"encoding/json"
+	"flag"
 	"fmt"
 	"github.com/TeaOSLab/EdgeNode/internal/apps"
+	"github.com/TeaOSLab/EdgeNode/internal/configs"
 	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
 	"github.com/TeaOSLab/EdgeNode/internal/nodes"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	"github.com/iwind/TeaGo/Tea"
 	_ "github.com/iwind/TeaGo/bootstrap"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/maps"
 	"github.com/iwind/TeaGo/types"
-	"io/ioutil"
+	"github.com/iwind/gosock/pkg/gosock"
+	"net"
+	"net/http"
+	_ "net/http/pprof"
 	"os"
-	"syscall"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
 )
 
 func main() {
-	app := apps.NewAppCmd().
+	var app = apps.NewAppCmd().
 		Version(teaconst.Version).
 		Product(teaconst.ProductName).
-		Usage(teaconst.ProcessName + " [-v|start|stop|restart|quit|test|service|daemon]")
+		Usage(teaconst.ProcessName + " [-v|start|stop|restart|status|quit|test|reload|service|daemon|pprof|accesslog|uninstall]").
+		Usage(teaconst.ProcessName + " [trackers|goman|conns|gc|bandwidth|disk|cache.garbage]").
+		Usage(teaconst.ProcessName + " [ip.drop|ip.reject|ip.remove|ip.close] IP")
 
+	app.On("start:before", func() {
+		// validate config
+		_, err := configs.LoadAPIConfig()
+		if err != nil {
+			// validate cluster config
+			_, clusterErr := configs.LoadClusterConfig()
+			if clusterErr != nil { // fail again
+				fmt.Println("[ERROR]start failed: load api config from '" + Tea.ConfigFile(configs.ConfigFileName) + "' failed: " + err.Error())
+				os.Exit(0)
+			}
+		}
+	})
+	app.On("uninstall", func() {
+		// service
+		fmt.Println("Uninstall service ...")
+		var manager = utils.NewServiceManager(teaconst.ProcessName, teaconst.ProductName)
+		go func() {
+			_ = manager.Uninstall()
+		}()
+
+		// stop
+		fmt.Println("Stopping ...")
+		_, _ = gosock.NewTmpSock(teaconst.ProcessName).SendTimeout(&gosock.Command{Code: "stop"}, 1*time.Second)
+
+		// delete files
+		var exe, _ = os.Executable()
+		if len(exe) == 0 {
+			return
+		}
+
+		var dir = filepath.Dir(filepath.Dir(exe)) // ROOT / bin / exe
+
+		// verify dir
+		{
+			fmt.Println("Checking '" + dir + "' ...")
+			for _, subDir := range []string{"bin/" + filepath.Base(exe), "configs", "logs"} {
+				_, err := os.Stat(dir + "/" + subDir)
+				if err != nil {
+					fmt.Println("[ERROR]program directory structure has been broken, please remove it manually.")
+					return
+				}
+			}
+
+			fmt.Println("Removing '" + dir + "' ...")
+			err := os.RemoveAll(dir)
+			if err != nil {
+				fmt.Println("[ERROR]remove failed: " + err.Error())
+			}
+		}
+
+		// delete symbolic links
+		fmt.Println("Removing symbolic links ...")
+		_ = os.Remove("/usr/bin/" + teaconst.ProcessName)
+		_ = os.Remove("/var/log/" + teaconst.ProcessName)
+
+		// delete configs
+		// nothing to delete for EdgeNode
+
+		// delete sock
+		fmt.Println("Removing temporary files ...")
+		var tempDir = os.TempDir()
+		_ = os.Remove(tempDir + "/" + teaconst.ProcessName + ".sock")
+		_ = os.Remove(tempDir + "/" + teaconst.AccessLogSockName)
+
+		// cache ...
+		fmt.Println("Please delete cache directories by yourself.")
+
+		// done
+		fmt.Println("[DONE]")
+	})
 	app.On("test", func() {
 		err := nodes.NewNode().Test()
 		if err != nil {
 			_, _ = os.Stderr.WriteString(err.Error())
 		}
 	})
+	app.On("reload", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "reload"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var params = maps.NewMap(reply.Params)
+			if params.Has("error") {
+				fmt.Println("[ERROR]" + params.GetString("error"))
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
 	app.On("daemon", func() {
 		nodes.NewNode().Daemon()
 	})
@@ -37,28 +136,389 @@ func main() {
 		fmt.Println("done")
 	})
 	app.On("quit", func() {
-		pidFile := Tea.Root + "/bin/pid"
-		data, err := ioutil.ReadFile(pidFile)
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		_, err := sock.Send(&gosock.Command{Code: "quit"})
 		if err != nil {
 			fmt.Println("[ERROR]quit failed: " + err.Error())
 			return
 		}
-		pid := types.Int(string(data))
-		if pid == 0 {
-			fmt.Println("[ERROR]quit failed: pid=0")
+		fmt.Println("done")
+	})
+	app.On("pprof", func() {
+		var flagSet = flag.NewFlagSet("pprof", flag.ExitOnError)
+		var addr string
+		flagSet.StringVar(&addr, "addr", "", "")
+		_ = flagSet.Parse(os.Args[2:])
+
+		if len(addr) == 0 {
+			addr = "127.0.0.1:6060"
+		}
+		logs.Println("starting with pprof '" + addr + "'...")
+
+		go func() {
+			err := http.ListenAndServe(addr, nil)
+			if err != nil {
+				logs.Println("[ERROR]" + err.Error())
+			}
+		}()
+
+		var node = nodes.NewNode()
+		node.Start()
+	})
+	app.On("dbstat", func() {
+		teaconst.EnableDBStat = true
+
+		var node = nodes.NewNode()
+		node.Start()
+	})
+	app.On("trackers", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "trackers"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			labelsMap, ok := reply.Params["labels"]
+			if ok {
+				labels, ok := labelsMap.(map[string]interface{})
+				if ok {
+					if len(labels) == 0 {
+						fmt.Println("no labels yet")
+					} else {
+						var labelNames = []string{}
+						for label := range labels {
+							labelNames = append(labelNames, label)
+						}
+						sort.Strings(labelNames)
+
+						for _, labelName := range labelNames {
+							fmt.Println(labelName + ": " + fmt.Sprintf("%.6f", labels[labelName]))
+						}
+					}
+				}
+			}
+		}
+	})
+	app.On("goman", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "goman"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			instancesJSON, err := json.MarshalIndent(reply.Params, "", "  ")
+			if err != nil {
+				fmt.Println("[ERROR]" + err.Error())
+			} else {
+				fmt.Println(string(instancesJSON))
+			}
+		}
+	})
+	app.On("conns", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "conns"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			resultJSON, err := json.MarshalIndent(reply.Params, "", "  ")
+			if err != nil {
+				fmt.Println("[ERROR]" + err.Error())
+			} else {
+				fmt.Println(string(resultJSON))
+			}
+		}
+	})
+	app.On("gc", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		_, err := sock.Send(&gosock.Command{Code: "gc"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			fmt.Println("ok")
+		}
+	})
+	app.On("ip.drop", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.drop IP [--timeout=SECONDS] [--async]")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+		var timeoutSeconds = 0
+		var options = app.ParseOptions(args[1:])
+		timeout, ok := options["timeout"]
+		if ok {
+			timeoutSeconds = types.Int(timeout[0])
+		}
+		var async = false
+		_, ok = options["async"]
+		if ok {
+			async = true
+		}
+
+		fmt.Println("drop ip '" + ip + "' for '" + types.String(timeoutSeconds) + "' seconds")
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "dropIP",
+			Params: map[string]interface{}{
+				"ip":             ip,
+				"timeoutSeconds": timeoutSeconds,
+				"async":          async,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("ip.reject", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.reject IP [--timeout=SECONDS]")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+		var timeoutSeconds = 0
+		var options = app.ParseOptions(args[1:])
+		timeout, ok := options["timeout"]
+		if ok {
+			timeoutSeconds = types.Int(timeout[0])
+		}
+
+		fmt.Println("reject ip '" + ip + "' for '" + types.String(timeoutSeconds) + "' seconds")
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "rejectIP",
+			Params: map[string]interface{}{
+				"ip":             ip,
+				"timeoutSeconds": timeoutSeconds,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("ip.close", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.close IP")
+			return
+		}
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
 			return
 		}
 
-		process, err := os.FindProcess(pid)
+		fmt.Println("close ip '" + ip)
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "closeIP",
+			Params: map[string]any{
+				"ip": ip,
+			},
+		})
 		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("ip.remove", func() {
+		var args = os.Args[2:]
+		if len(args) == 0 {
+			fmt.Println("Usage: edge-node ip.remove IP")
 			return
 		}
-		if process != nil {
-			_ = process.Signal(syscall.SIGQUIT)
+		var ip = args[0]
+		if len(net.ParseIP(ip)) == 0 {
+			fmt.Println("IP '" + ip + "' is invalid")
+			return
+		}
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code: "removeIP",
+			Params: map[string]interface{}{
+				"ip": ip,
+			},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+		} else {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+			} else {
+				fmt.Println("ok")
+			}
+		}
+	})
+	app.On("accesslog", func() {
+		// local sock
+		var tmpDir = os.TempDir()
+		var sockFile = tmpDir + "/" + teaconst.AccessLogSockName
+		_, err := os.Stat(sockFile)
+		if err != nil {
+			if !os.IsNotExist(err) {
+				fmt.Println("[ERROR]" + err.Error())
+				return
+			}
+		}
+
+		var processSock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := processSock.Send(&gosock.Command{
+			Code: "accesslog",
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		if reply.Code == "error" {
+			var errString = maps.NewMap(reply.Params).GetString("error")
+			if len(errString) > 0 {
+				fmt.Println("[ERROR]" + errString)
+				return
+			}
+		}
+
+		conn, err := net.Dial("unix", sockFile)
+		if err != nil {
+			fmt.Println("[ERROR]start reading access log failed: " + err.Error())
+			return
+		}
+		defer func() {
+			_ = conn.Close()
+		}()
+		var buf = make([]byte, 1024)
+		for {
+			n, err := conn.Read(buf)
+			if n > 0 {
+				fmt.Print(string(buf[:n]))
+			}
+			if err != nil {
+				break
+			}
+		}
+	})
+	app.On("bandwidth", func() {
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{Code: "bandwidth"})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		var statsMap = maps.NewMap(reply.Params).Get("stats")
+		statsJSON, err := json.MarshalIndent(statsMap, "", "  ")
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+		fmt.Println(string(statsJSON))
+	})
+	app.On("disk", func() {
+		var args = os.Args[2:]
+		if len(args) > 0 {
+			switch args[0] {
+			case "speed":
+				speedMB, isFast, err := fsutils.CheckDiskIsFast()
+				if err != nil {
+					fmt.Println("[ERROR]" + err.Error())
+				} else {
+					fmt.Printf("Speed: %.0fMB/s\n", speedMB)
+					if isFast {
+						fmt.Println("IsFast: true")
+					} else {
+						fmt.Println("IsFast: false")
+					}
+				}
+			default:
+				fmt.Println("Usage: edge-node disk [speed]")
+			}
+		} else {
+			fmt.Println("Usage: edge-node disk [speed]")
+		}
+	})
+	app.On("cache.garbage", func() {
+		fmt.Println("scanning ...")
+
+		var shouldDelete bool
+		for _, arg := range os.Args {
+			if strings.TrimLeft(arg, "-") == "delete" {
+				shouldDelete = true
+			}
+		}
+
+		var progressSock = gosock.NewTmpSock(teaconst.CacheGarbageSockName)
+		progressSock.OnCommand(func(cmd *gosock.Command) {
+			var params = maps.NewMap(cmd.Params)
+			if cmd.Code == "progress" {
+				fmt.Printf("%.2f%% %d\n", params.GetFloat64("progress")*100, params.GetInt("count"))
+				_ = cmd.ReplyOk()
+			}
+		})
+		go func() {
+			_ = progressSock.Listen()
+		}()
+		time.Sleep(1 * time.Second)
+
+		var sock = gosock.NewTmpSock(teaconst.ProcessName)
+		reply, err := sock.Send(&gosock.Command{
+			Code:   "cache.garbage",
+			Params: map[string]any{"delete": shouldDelete},
+		})
+		if err != nil {
+			fmt.Println("[ERROR]" + err.Error())
+			return
+		}
+
+		var params = maps.NewMap(reply.Params)
+		if params.GetBool("isOk") {
+			var count = params.GetInt("count")
+			fmt.Println("found", count, "bad caches")
+
+			if count > 0 {
+				fmt.Println("======")
+				var sampleFiles = params.GetSlice("sampleFiles")
+				for _, file := range sampleFiles {
+					fmt.Println(types.String(file))
+				}
+				if count > len(sampleFiles) {
+					fmt.Println("... more files")
+				}
+			}
+		} else {
+			fmt.Println("[ERROR]" + params.GetString("error"))
 		}
 	})
 	app.Run(func() {
-		node := nodes.NewNode()
+		var node = nodes.NewNode()
 		node.Start()
 	})
 }

dist/.gitignore

@@ -1 +1,2 @@
-*.zip
+*.zip
+edge-node

go.mod

@@ -1,23 +1,82 @@
 module github.com/TeaOSLab/EdgeNode
 
-go 1.15
+go 1.18
 
-replace github.com/TeaOSLab/EdgeCommon => ../EdgeCommon
+replace (
+	github.com/TeaOSLab/EdgeCommon => ../EdgeCommon
+	github.com/fsnotify/fsnotify => github.com/iwind/fsnotify v1.5.2-0.20220817040843-193be2051ff4
+	github.com/google/nftables => github.com/iwind/nftables v0.0.0-20230419014751-9f023a644ad4
+)
 
 require (
-	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
 	github.com/TeaOSLab/EdgeCommon v0.0.0-00010101000000-000000000000
+	github.com/aliyun/aliyun-oss-go-sdk v2.2.7+incompatible
+	github.com/andybalholm/brotli v1.0.5
+	github.com/aws/aws-sdk-go v1.44.279
+	github.com/baidubce/bce-sdk-go v0.9.153
+	github.com/biessek/golang-ico v0.0.0-20180326222316-d348d9ea4670
 	github.com/cespare/xxhash v1.1.0
 	github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f
-	github.com/go-ole/go-ole v1.2.4 // indirect
-	github.com/go-yaml/yaml v2.1.0+incompatible
-	github.com/golang/protobuf v1.4.2
-	github.com/iwind/TeaGo v0.0.0-20201020081413-7cf62d6f420f
-	github.com/lionsoul2014/ip2region v2.2.0-release+incompatible
-	github.com/mssola/user_agent v0.5.2
-	github.com/shirou/gopsutil v2.20.9+incompatible
-	golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7
-	golang.org/x/sys v0.0.0-20200519105757-fe76b779f299
-	google.golang.org/grpc v1.32.0
-	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
+	github.com/fsnotify/fsnotify v1.6.0
+	github.com/go-redis/redis/v8 v8.11.5
+	github.com/google/gopacket v1.1.19
+	github.com/google/nftables v0.1.0
+	github.com/huaweicloud/huaweicloud-sdk-go-obs v3.23.4+incompatible
+	github.com/iwind/TeaGo v0.0.0-20230630104525-161f0b32996d
+	github.com/iwind/gofcgi v0.0.0-20210528023741-a92711d45f11
+	github.com/iwind/gosock v0.0.0-20211103081026-ee4652210ca4
+	github.com/iwind/gowebp v0.0.0-20231026013903-1c22b0d78cc4
+	github.com/klauspost/compress v1.17.2
+	github.com/mattn/go-sqlite3 v1.14.17
+	github.com/mdlayher/netlink v1.7.1
+	github.com/miekg/dns v1.1.43
+	github.com/mssola/useragent v1.0.0
+	github.com/pires/go-proxyproto v0.6.1
+	github.com/qiniu/go-sdk/v7 v7.16.0
+	github.com/quic-go/quic-go v0.39.2
+	github.com/shirou/gopsutil/v3 v3.22.2
+	github.com/tencentyun/cos-go-sdk-v5 v0.7.41
+	golang.org/x/image v0.13.0
+	golang.org/x/net v0.17.0
+	golang.org/x/sys v0.13.0
+	google.golang.org/grpc v1.59.0
+	google.golang.org/protobuf v1.31.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/clbanning/mxj v1.8.4 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/josharian/native v1.0.0 // indirect
+	github.com/jsummers/gobmp v0.0.0-20151104160322-e2ba15ffa76e // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/mdlayher/socket v0.4.0 // indirect
+	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/mozillazg/go-httpheader v0.2.1 // indirect
+	github.com/onsi/ginkgo/v2 v2.13.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/quic-go/qpack v0.4.0 // indirect
+	github.com/quic-go/qtls-go1-20 v0.4.1 // indirect
+	github.com/tdewolff/minify/v2 v2.12.7 // indirect
+	github.com/tdewolff/parse/v2 v2.6.6 // indirect
+	github.com/tklauser/go-sysconf v0.3.9 // indirect
+	github.com/tklauser/numcpus v0.3.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	go.uber.org/mock v0.3.0 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/mod v0.13.0 // indirect
+	golang.org/x/sync v0.4.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.14.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231016165738-49dd2c1f3d0b // indirect
 )

go.sum

@@ -1,188 +1,253 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/DataDog/sketches-go v0.0.0-20190923095040-43f19ad77ff7/go.mod h1:Q5DbzQ+3AkgGwymQO7aZFNP7ns2lZKGtvRBzRXfdi60=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d h1:G0m3OIz70MZUWq3EgK3CesDbo8upS2Vm9/P3FtgI+Jk=
-github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
-github.com/benbjohnson/clock v1.0.3/go.mod h1:bGMdMPoPVvcYyt1gHDf4J2KE153Yf9BuiUKYMaxlTDM=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/QcloudApi/qcloud_sign_golang v0.0.0-20141224014652-e4130a326409/go.mod h1:1pk82RBxDY/JZnPQrtqHlUFfCctgdorsd9M06fMynOM=
+github.com/aliyun/aliyun-oss-go-sdk v2.2.7+incompatible h1:KpbJFXwhVeuxNtBJ74MCGbIoaBok2uZvkD7QXp2+Wis=
+github.com/aliyun/aliyun-oss-go-sdk v2.2.7+incompatible/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
+github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
+github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/aws/aws-sdk-go v1.44.279 h1:g23dxnYjIiPlQo0gIKNR0zVPsSvo1bj5frWln+5sfhk=
+github.com/aws/aws-sdk-go v1.44.279/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
+github.com/baidubce/bce-sdk-go v0.9.153 h1:h5l2EXehe4C4/bdlAPBaULrbnEDgIu5HOYgniN7bjGM=
+github.com/baidubce/bce-sdk-go v0.9.153/go.mod h1:zbYJMQwE4IZuyrJiFO8tO8NbtYiKTFTbwh4eIsqjVdg=
+github.com/biessek/golang-ico v0.0.0-20180326222316-d348d9ea4670 h1:FQPKKjDhzG0T4ew6dm6MGrXb4PRAi8ZmTuYuxcF62BM=
+github.com/biessek/golang-ico v0.0.0-20180326222316-d348d9ea4670/go.mod h1:iRWAFbKXMMkVQyxZ1PfGlkBr1TjATx1zy2MRprV7A3Q=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927/go.mod h1:h/aW8ynjgkuj+NQRlZcDbAbM1ORAbXjXX77sX7T289U=
+github.com/clbanning/mxj v1.8.4 h1:HuhwZtbyvyOw+3Z1AowPkU87JkJUSv751ELWaiTpj8I=
+github.com/clbanning/mxj v1.8.4/go.mod h1:BVjHeAH+rl9rs6f+QIpeRl0tfu10SXn1pUSa5PVGJng=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f h1:q/DpyjJjZs94bziQ7YkBmIlpqbVP7yw179rnzoNVX1M=
 github.com/dchest/captcha v0.0.0-20200903113550-03f5f0333e1f/go.mod h1:QGrK8vMWWHQYQ3QU9bw9Y9OPNfxccGzfb41qjvVeXtY=
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 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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internal/apps/app_cmd.go

@@ -1,29 +1,41 @@
 package apps
 
 import (
+	"errors"
 	"fmt"
-	"github.com/iwind/TeaGo/Tea"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	executils "github.com/TeaOSLab/EdgeNode/internal/utils/exec"
 	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/maps"
+	"github.com/iwind/TeaGo/types"
+	"github.com/iwind/gosock/pkg/gosock"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"runtime"
 	"strconv"
+	"strings"
+	"syscall"
 	"time"
 )
 
-// App命令帮助
+// AppCmd App命令帮助
 type AppCmd struct {
 	product       string
 	version       string
-	usage         string
+	usages        []string
 	options       []*CommandHelpOption
 	appendStrings []string
 
 	directives []*Directive
+
+	sock *gosock.Sock
 }
 
 func NewAppCmd() *AppCmd {
-	return &AppCmd{}
+	return &AppCmd{
+		sock: gosock.NewTmpSock(teaconst.ProcessName),
+	}
 }
 
 type CommandHelpOption struct {
@@ -31,25 +43,25 @@ type CommandHelpOption struct {
 	Description string
 }
 
-// 产品
+// Product 产品
 func (this *AppCmd) Product(product string) *AppCmd {
 	this.product = product
 	return this
 }
 
-// 版本
+// Version 版本
 func (this *AppCmd) Version(version string) *AppCmd {
 	this.version = version
 	return this
 }
 
-// 使用方法
+// Usage 使用方法
 func (this *AppCmd) Usage(usage string) *AppCmd {
-	this.usage = usage
+	this.usages = append(this.usages, usage)
 	return this
 }
 
-// 选项
+// Option 选项
 func (this *AppCmd) Option(code string, description string) *AppCmd {
 	this.options = append(this.options, &CommandHelpOption{
 		Code:        code,
@@ -58,25 +70,27 @@ func (this *AppCmd) Option(code string, description string) *AppCmd {
 	return this
 }
 
-// 附加内容
+// Append 附加内容
 func (this *AppCmd) Append(appendString string) *AppCmd {
 	this.appendStrings = append(this.appendStrings, appendString)
 	return this
 }
 
-// 打印
+// Print 打印
 func (this *AppCmd) Print() {
 	fmt.Println(this.product + " v" + this.version)
 
-	usage := this.usage
-	fmt.Println("Usage:", "\n   "+usage)
+	fmt.Println("Usage:")
+	for _, usage := range this.usages {
+		fmt.Println("   " + usage)
+	}
 
 	if len(this.options) > 0 {
 		fmt.Println("")
 		fmt.Println("Options:")
 
-		spaces := 20
-		max := 40
+		var spaces = 20
+		var max = 40
 		for _, option := range this.options {
 			l := len(option.Code)
 			if l < max && l > spaces {
@@ -103,7 +117,7 @@ func (this *AppCmd) Print() {
 	}
 }
 
-// 添加指令
+// On 添加指令
 func (this *AppCmd) On(arg string, callback func()) {
 	this.directives = append(this.directives, &Directive{
 		Arg:      arg,
@@ -111,12 +125,15 @@ func (this *AppCmd) On(arg string, callback func()) {
 	})
 }
 
-// 运行
+// Run 运行
 func (this *AppCmd) Run(main func()) {
 	// 获取参数
-	args := os.Args[1:]
+	var args = os.Args[1:]
 	if len(args) > 0 {
-		switch args[0] {
+		var mainArg = args[0]
+		this.callDirective(mainArg + ":before")
+
+		switch mainArg {
 		case "-v", "version", "-version", "--version":
 			this.runVersion()
 			return
@@ -139,19 +156,19 @@ func (this *AppCmd) Run(main func()) {
 
 		// 查找指令
 		for _, directive := range this.directives {
-			if directive.Arg == args[0] {
+			if directive.Arg == mainArg {
 				directive.Callback()
 				return
 			}
 		}
 
-		fmt.Println("unknown command '" + args[0] + "'")
+		fmt.Println("unknown command '" + mainArg + "'")
 
 		return
 	}
 
 	// 日志
-	writer := new(LogWriter)
+	var writer = new(LogWriter)
 	writer.Init()
 	logs.SetWriter(writer)
 
@@ -161,7 +178,7 @@ func (this *AppCmd) Run(main func()) {
 
 // 版本号
 func (this *AppCmd) runVersion() {
-	fmt.Println(this.product+" v"+this.version, "(build: "+runtime.Version(), runtime.GOOS, runtime.GOARCH+")")
+	fmt.Println(this.product+" v"+this.version, "(build: "+runtime.Version(), runtime.GOOS, runtime.GOARCH, teaconst.Tag+")")
 }
 
 // 帮助
@@ -171,36 +188,55 @@ func (this *AppCmd) runHelp() {
 
 // 启动
 func (this *AppCmd) runStart() {
-	proc := this.checkPid()
-	if proc != nil {
-		fmt.Println(this.product+" already started, pid:", proc.Pid)
+	var pid = this.getPID()
+	if pid > 0 {
+		fmt.Println(this.product+" already started, pid:", pid)
 		return
 	}
 
-	cmd := exec.Command(os.Args[0])
+	_ = os.Setenv("EdgeBackground", "on")
+
+	var cmd = exec.Command(this.exe())
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Foreground: false,
+		Setsid:     true,
+	}
+
 	err := cmd.Start()
 	if err != nil {
 		fmt.Println(this.product+"  start failed:", err.Error())
 		return
 	}
 
+	// create symbolic links
+	_ = this.createSymLinks()
+
 	fmt.Println(this.product+" started ok, pid:", cmd.Process.Pid)
 }
 
 // 停止
 func (this *AppCmd) runStop() {
-	proc := this.checkPid()
-	if proc == nil {
+	var pid = this.getPID()
+	if pid == 0 {
 		fmt.Println(this.product + " not started yet")
 		return
 	}
 
-	// 停止进程
-	_ = proc.Kill()
+	// 从systemd中停止
+	if runtime.GOOS == "linux" {
+		systemctl, _ := executils.LookPath("systemctl")
+		if len(systemctl) > 0 {
+			go func() {
+				// 有可能会长时间执行，这里不阻塞进程
+				_ = exec.Command(systemctl, "stop", teaconst.SystemdServiceName).Run()
+			}()
+		}
+	}
 
-	// 在Windows上经常不能及时释放资源
-	_ = DeletePid(Tea.Root + "/bin/pid")
-	fmt.Println(this.product+" stopped ok, pid:", proc.Pid)
+	// 如果仍在运行，则发送停止指令
+	_, _ = this.sock.SendTimeout(&gosock.Command{Code: "stop"}, 1*time.Second)
+
+	fmt.Println(this.product+" stopped ok, pid:", types.String(pid))
 }
 
 // 重启
@@ -212,15 +248,106 @@ func (this *AppCmd) runRestart() {
 
 // 状态
 func (this *AppCmd) runStatus() {
-	proc := this.checkPid()
-	if proc == nil {
+	var pid = this.getPID()
+	if pid == 0 {
 		fmt.Println(this.product + " not started yet")
-	} else {
-		fmt.Println(this.product + " is running, pid: " + fmt.Sprintf("%d", proc.Pid))
+		return
 	}
+
+	fmt.Println(this.product + " is running, pid: " + types.String(pid))
 }
 
-// 检查PID
-func (this *AppCmd) checkPid() *os.Process {
-	return CheckPid(Tea.Root + "/bin/pid")
+// 获取当前的PID
+func (this *AppCmd) getPID() int {
+	if !this.sock.IsListening() {
+		return 0
+	}
+
+	reply, err := this.sock.Send(&gosock.Command{Code: "pid"})
+	if err != nil {
+		return 0
+	}
+	return maps.NewMap(reply.Params).GetInt("pid")
+}
+
+// ParseOptions 分析参数中的选项
+func (this *AppCmd) ParseOptions(args []string) map[string][]string {
+	var result = map[string][]string{}
+	for _, arg := range args {
+		var pieces = strings.SplitN(arg, "=", 2)
+		var key = strings.TrimLeft(pieces[0], "- ")
+		key = strings.TrimSpace(key)
+		var value = ""
+		if len(pieces) == 2 {
+			value = strings.TrimSpace(pieces[1])
+		}
+		result[key] = append(result[key], value)
+	}
+	return result
+}
+
+func (this *AppCmd) exe() string {
+	var exe, _ = os.Executable()
+	if len(exe) == 0 {
+		exe = os.Args[0]
+	}
+	return exe
+}
+
+// 创建软链接
+func (this *AppCmd) createSymLinks() error {
+	if runtime.GOOS != "linux" {
+		return nil
+	}
+
+	var exe, _ = os.Executable()
+	if len(exe) == 0 {
+		return nil
+	}
+
+	var errorList = []string{}
+
+	// bin
+	{
+		var target = "/usr/bin/" + teaconst.ProcessName
+		old, _ := filepath.EvalSymlinks(target)
+		if old != exe {
+			_ = os.Remove(target)
+			err := os.Symlink(exe, target)
+			if err != nil {
+				errorList = append(errorList, err.Error())
+			}
+		}
+	}
+
+	// log
+	{
+		var realPath = filepath.Dir(filepath.Dir(exe)) + "/logs/run.log"
+		var target = "/var/log/" + teaconst.ProcessName + ".log"
+		old, _ := filepath.EvalSymlinks(target)
+		if old != realPath {
+			_ = os.Remove(target)
+			err := os.Symlink(realPath, target)
+			if err != nil {
+				errorList = append(errorList, err.Error())
+			}
+		}
+	}
+
+	if len(errorList) > 0 {
+		return errors.New(strings.Join(errorList, "\n"))
+	}
+
+	return nil
+}
+
+func (this *AppCmd) callDirective(code string) {
+	for _, directive := range this.directives {
+		if directive.Arg == code {
+			if directive.Callback != nil {
+				directive.Callback()
+			}
+			return
+		}
+	}
 }

internal/apps/file_others.go

@@ -1,17 +0,0 @@
-// +build !windows
-
-package apps
-
-import (
-	"os"
-	"syscall"
-)
-
-// lock file
-func LockFile(fp *os.File) error {
-	return syscall.Flock(int(fp.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
-}
-
-func UnlockFile(fp *os.File) error {
-	return syscall.Flock(int(fp.Fd()), syscall.LOCK_UN)
-}

internal/apps/file_windows.go

@@ -1,17 +0,0 @@
-// +build windows
-
-package apps
-
-import (
-	"errors"
-	"os"
-)
-
-// lock file
-func LockFile(fp *os.File) error {
-	return errors.New("not implemented on windows")
-}
-
-func UnlockFile(fp *os.File) error {
-	return errors.New("not implemented on windows")
-}

internal/apps/log_writer.go

@@ -1,51 +1,112 @@
 package apps
 
 import (
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/sizes"
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/iwind/TeaGo/files"
-	"github.com/iwind/TeaGo/logs"
-	"github.com/iwind/TeaGo/utils/time"
+	timeutil "github.com/iwind/TeaGo/utils/time"
 	"log"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
 )
 
 type LogWriter struct {
-	fileAppender *files.Appender
+	fp *os.File
+	c  chan string
 }
 
 func (this *LogWriter) Init() {
 	// 创建目录
-	dir := files.NewFile(Tea.LogDir())
+	var dir = files.NewFile(Tea.LogDir())
 	if !dir.Exists() {
 		err := dir.Mkdir()
 		if err != nil {
-			log.Println("[error]" + err.Error())
+			log.Println("[LOG]create log dir failed: " + err.Error())
 		}
 	}
 
-	logFile := files.NewFile(Tea.LogFile("run.log"))
-
 	// 打开要写入的日志文件
-	appender, err := logFile.Appender()
+	var logPath = Tea.LogFile("run.log")
+	fp, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 	if err != nil {
-		logs.Error(err)
+		log.Println("[LOG]open log file failed: " + err.Error())
 	} else {
-		this.fileAppender = appender
+		this.fp = fp
+	}
+
+	this.c = make(chan string, 1024)
+
+	// 异步写入文件
+	var maxFileSize = 128 * sizes.M // 文件最大尺寸，超出此尺寸则清空
+	if fp != nil {
+		goman.New(func() {
+			var totalSize int64 = 0
+			stat, err := fp.Stat()
+			if err == nil {
+				totalSize = stat.Size()
+			}
+
+			for message := range this.c {
+				totalSize += int64(len(message))
+				_, err := fp.WriteString(timeutil.Format("Y/m/d H:i:s ") + message + "\n")
+				if err != nil {
+					log.Println("[LOG]write log failed: " + err.Error())
+				} else {
+					// 如果太大则Truncate
+					if totalSize > maxFileSize {
+						_ = fp.Truncate(0)
+						totalSize = 0
+					}
+				}
+			}
+		})
 	}
 }
 
 func (this *LogWriter) Write(message string) {
-	log.Println(message)
-
-	if this.fileAppender != nil {
-		_, err := this.fileAppender.AppendString(timeutil.Format("Y/m/d H:i:s ") + message + "\n")
-		if err != nil {
-			log.Println("[error]" + err.Error())
+	backgroundEnv, _ := os.LookupEnv("EdgeBackground")
+	if backgroundEnv != "on" {
+		// 文件和行号
+		var file string
+		var line int
+		if Tea.IsTesting() {
+			var callDepth = 3
+			var ok bool
+			_, file, line, ok = runtime.Caller(callDepth)
+			if ok {
+				file = utils.RemoveWorkspace(this.packagePath(file))
+			}
 		}
+
+		if len(file) > 0 {
+			log.Println(message + " (" + file + ":" + strconv.Itoa(line) + ")")
+		} else {
+			log.Println(message)
+		}
+	}
+
+	select {
+	case this.c <- message:
+	default:
 	}
 }
 
 func (this *LogWriter) Close() {
-	if this.fileAppender != nil {
-		_ = this.fileAppender.Close()
+	if this.fp != nil {
+		_ = this.fp.Close()
 	}
+
+	close(this.c)
+}
+
+func (this *LogWriter) packagePath(path string) string {
+	var pieces = strings.Split(path, "/")
+	if len(pieces) >= 2 {
+		return strings.Join(pieces[len(pieces)-2:], "/")
+	}
+	return path
 }

internal/apps/main.go

@@ -0,0 +1,11 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package apps
+
+import teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+
+func RunMain(f func()) {
+	if teaconst.IsMain {
+		f()
+	}
+}

internal/apps/pid.go

@@ -1,119 +0,0 @@
-package apps
-
-import (
-	"fmt"
-	"github.com/TeaOSLab/EdgeNode/internal/events"
-	"github.com/iwind/TeaGo/Tea"
-	"github.com/iwind/TeaGo/types"
-	"io/ioutil"
-	"os"
-	"runtime"
-)
-
-var pidFileList = []*os.File{}
-
-// 检查Pid
-func CheckPid(path string) *os.Process {
-	// windows上打开的文件是不能删除的
-	if runtime.GOOS == "windows" {
-		if os.Remove(path) == nil {
-			return nil
-		}
-	}
-
-	file, err := os.Open(path)
-	if err != nil {
-		return nil
-	}
-
-	defer func() {
-		_ = file.Close()
-	}()
-
-	// 是否能取得Lock
-	err = LockFile(file)
-	if err == nil {
-		_ = UnlockFile(file)
-		return nil
-	}
-
-	pidBytes, err := ioutil.ReadAll(file)
-	if err != nil {
-		return nil
-	}
-	pid := types.Int(string(pidBytes))
-
-	if pid <= 0 {
-		return nil
-	}
-
-	proc, _ := os.FindProcess(pid)
-	return proc
-}
-
-// 写入Pid
-func WritePid() error {
-	path := Tea.Root + "/bin/pid"
-	fp, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY|os.O_RDONLY, 0666)
-	if err != nil {
-		return err
-	}
-	events.On(events.EventQuit, func() {
-		_ = fp.Close()
-	})
-
-	if runtime.GOOS != "windows" {
-		err = LockFile(fp)
-		if err != nil {
-			return err
-		}
-	}
-	pidFileList = append(pidFileList, fp) // hold the file pointers
-
-	_, err = fp.WriteString(fmt.Sprintf("%d", os.Getpid()))
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// 写入Ppid
-func WritePpid(path string) error {
-	fp, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY|os.O_RDONLY, 0666)
-	if err != nil {
-		return err
-	}
-
-	if runtime.GOOS != "windows" {
-		err = LockFile(fp)
-		if err != nil {
-			return err
-		}
-	}
-	pidFileList = append(pidFileList, fp) // hold the file pointers
-
-	_, err = fp.WriteString(fmt.Sprintf("%d", os.Getppid()))
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// 删除Pid
-func DeletePid(path string) error {
-	_, err := os.Stat(path)
-	if err != nil {
-		if !os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-
-	for _, fp := range pidFileList {
-		_ = UnlockFile(fp)
-		_ = fp.Close()
-	}
-	return os.Remove(path)
-}

internal/caches/consts.go

@@ -0,0 +1,11 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+const (
+	SuffixAll         = "@GOEDGE_"        // 通用后缀
+	SuffixWebP        = "@GOEDGE_WEBP"    // WebP后缀
+	SuffixCompression = "@GOEDGE_"        // 压缩后缀 SuffixCompression + Encoding
+	SuffixMethod      = "@GOEDGE_"        // 请求方法后缀 SuffixMethod + RequestMethod
+	SuffixPartial     = "@GOEDGE_partial" // 分区缓存后缀
+)

internal/caches/errors.go

@@ -0,0 +1,49 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import "errors"
+
+// 常用的几个错误
+var (
+	ErrNotFound           = errors.New("cache not found")
+	ErrFileIsWriting      = errors.New("the cache file is updating")
+	ErrInvalidRange       = errors.New("invalid range")
+	ErrEntityTooLarge     = errors.New("entity too large")
+	ErrWritingUnavailable = errors.New("writing unavailable")
+	ErrWritingQueueFull   = errors.New("writing queue full")
+	ErrServerIsBusy       = errors.New("server is busy")
+)
+
+// CapacityError 容量错误
+// 独立出来是为了可以在有些场合下可以忽略，防止产生没必要的错误提示数量太多
+type CapacityError struct {
+	err string
+}
+
+func NewCapacityError(err string) error {
+	return &CapacityError{err: err}
+}
+
+func (this *CapacityError) Error() string {
+	return this.err
+}
+
+// CanIgnoreErr 检查错误是否可以忽略
+func CanIgnoreErr(err error) bool {
+	if err == nil {
+		return true
+	}
+	if err == ErrFileIsWriting ||
+		err == ErrEntityTooLarge ||
+		err == ErrWritingUnavailable ||
+		err == ErrWritingQueueFull ||
+		err == ErrServerIsBusy {
+		return true
+	}
+	_, ok := err.(*CapacityError)
+	if ok {
+		return true
+	}
+	return false
+}

internal/caches/errros_test.go

@@ -0,0 +1,16 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"github.com/iwind/TeaGo/assert"
+	"testing"
+)
+
+func TestCanIgnoreErr(t *testing.T) {
+	a := assert.NewAssertion(t)
+
+	a.IsTrue(CanIgnoreErr(ErrFileIsWriting))
+	a.IsTrue(CanIgnoreErr(NewCapacityError("over capcity")))
+	a.IsFalse(CanIgnoreErr(ErrNotFound))
+}

internal/caches/file_dir.go

@@ -0,0 +1,11 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import "github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+
+type FileDir struct {
+	Path     string
+	Capacity *shared.SizeCapacity
+	IsFull   bool
+}

internal/caches/hot_item.go

@@ -0,0 +1,8 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+type HotItem struct {
+	Key  string
+	Hits uint32
+}

internal/caches/item.go

@@ -1,6 +1,9 @@
 package caches
 
-import "time"
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	"strings"
+)
 
 type ItemType = int
 
@@ -9,23 +12,47 @@ const (
 	ItemTypeMemory ItemType = 2
 )
 
+// 计算当前周
+// 不要用YW，因为需要计算两周是否临近
+func currentWeek() int32 {
+	return int32(fasttime.Now().Unix() / 86400)
+}
+
 type Item struct {
-	Type       ItemType
-	Key        string
-	ExpiredAt  int64
-	HeaderSize int64
-	BodySize   int64
-	MetaSize   int64
+	Type       ItemType `json:"type"`
+	Key        string   `json:"key"`
+	ExpiredAt  int64    `json:"expiredAt"`
+	StaleAt    int64    `json:"staleAt"`
+	HeaderSize int64    `json:"headerSize"`
+	BodySize   int64    `json:"bodySize"`
+	MetaSize   int64    `json:"metaSize"`
+	Host       string   `json:"host"`     // 主机名
+	ServerId   int64    `json:"serverId"` // 服务ID
+	Week       int32    `json:"week"`
 }
 
 func (this *Item) IsExpired() bool {
-	return this.ExpiredAt < time.Now().Unix()
+	return this.ExpiredAt < fasttime.Now().Unix()
 }
 
 func (this *Item) TotalSize() int64 {
-	return this.Size() + this.MetaSize + int64(len(this.Key))
+	return this.Size() + this.MetaSize + int64(len(this.Key)) + int64(len(this.Host))
 }
 
 func (this *Item) Size() int64 {
 	return this.HeaderSize + this.BodySize
 }
+
+func (this *Item) RequestURI() string {
+	var schemeIndex = strings.Index(this.Key, "://")
+	if schemeIndex <= 0 {
+		return ""
+	}
+
+	var firstSlashIndex = strings.Index(this.Key[schemeIndex+3:], "/")
+	if firstSlashIndex <= 0 {
+		return ""
+	}
+
+	return this.Key[schemeIndex+3+firstSlashIndex:]
+}

internal/caches/item_test.go

@@ -0,0 +1,75 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"runtime"
+	"testing"
+	"time"
+)
+
+func TestItems_Memory(t *testing.T) {
+	var stat = &runtime.MemStats{}
+	runtime.ReadMemStats(stat)
+	var memory1 = stat.HeapInuse
+
+	var items = []*caches.Item{}
+	for i := 0; i < 10_000_000; i++ {
+		items = append(items, &caches.Item{
+			Key: types.String(i),
+		})
+	}
+
+	runtime.ReadMemStats(stat)
+	var memory2 = stat.HeapInuse
+
+	t.Log(memory1, memory2, (memory2-memory1)/1024/1024, "M")
+
+	runtime.ReadMemStats(stat)
+	var memory3 = stat.HeapInuse
+	t.Log(memory2, memory3, (memory3-memory2)/1024/1024, "M")
+
+	time.Sleep(1 * time.Second)
+}
+
+func TestItems_Memory2(t *testing.T) {
+	var stat = &runtime.MemStats{}
+	runtime.ReadMemStats(stat)
+	var memory1 = stat.HeapInuse
+
+	var items = map[int32]map[string]zero.Zero{}
+	for i := 0; i < 10_000_000; i++ {
+		var week = int32((time.Now().Unix() - int64(86400*rands.Int(0, 300))) / (86400 * 7))
+		m, ok := items[week]
+		if !ok {
+			m = map[string]zero.Zero{}
+			items[week] = m
+		}
+		m[types.String(int64(i)*1_000_000)] = zero.New()
+	}
+
+	runtime.ReadMemStats(stat)
+	var memory2 = stat.HeapInuse
+
+	t.Log(memory1, memory2, (memory2-memory1)/1024/1024, "M")
+
+	time.Sleep(1 * time.Second)
+	for w, i := range items {
+		t.Log(w, len(i))
+	}
+}
+
+func TestItem_RequestURI(t *testing.T) {
+	for _, u := range []string{
+		"https://goedge.cn/hello/world",
+		"https://goedge.cn:8080/hello/world",
+		"https://goedge.cn/hello/world?v=1&t=123",
+	} {
+		var item = &caches.Item{Key: u}
+		t.Log(u, "=>", item.RequestURI())
+	}
+}

internal/caches/list.go

@@ -1,145 +0,0 @@
-package caches
-
-import (
-	"strings"
-	"sync"
-)
-
-// 缓存列表管理
-type List struct {
-	m        map[string]*Item // hash => item
-	locker   sync.RWMutex
-	onAdd    func(item *Item)
-	onRemove func(item *Item)
-}
-
-func NewList() *List {
-	return &List{
-		m: map[string]*Item{},
-	}
-}
-
-func (this *List) Reset() {
-	this.locker.Lock()
-	this.m = map[string]*Item{}
-	this.locker.Unlock()
-}
-
-func (this *List) Add(hash string, item *Item) {
-	this.locker.Lock()
-	if this.onAdd != nil {
-		this.onAdd(item)
-	}
-	this.m[hash] = item
-	this.locker.Unlock()
-}
-
-func (this *List) Exist(hash string) bool {
-	this.locker.RLock()
-	defer this.locker.RUnlock()
-
-	item, ok := this.m[hash]
-	if !ok {
-		return false
-	}
-
-	return !item.IsExpired()
-}
-
-// 根据前缀进行查找
-func (this *List) FindKeysWithPrefix(prefix string) (keys []string) {
-	this.locker.RLock()
-	defer this.locker.RUnlock()
-
-	// TODO 需要优化性能，支持千万级数据低于1s的处理速度
-	for _, item := range this.m {
-		if strings.HasPrefix(item.Key, prefix) {
-			keys = append(keys, item.Key)
-		}
-	}
-	return
-}
-
-func (this *List) Remove(hash string) {
-	this.locker.Lock()
-
-	item, ok := this.m[hash]
-	if ok {
-		if this.onRemove != nil {
-			this.onRemove(item)
-		}
-		delete(this.m, hash)
-	}
-
-	this.locker.Unlock()
-}
-
-// 清理过期的缓存
-// count 每次遍历的最大数量，控制此数字可以保证每次清理的时候不用花太多时间
-// callback 每次发现过期key的调用
-func (this *List) Purge(count int, callback func(hash string)) {
-	this.locker.Lock()
-	deletedHashList := []string{}
-	for hash, item := range this.m {
-		if count <= 0 {
-			break
-		}
-
-		if item.IsExpired() {
-			if this.onRemove != nil {
-				this.onRemove(item)
-			}
-			delete(this.m, hash)
-			deletedHashList = append(deletedHashList, hash)
-		}
-
-		count--
-	}
-	this.locker.Unlock()
-
-	// 执行外部操作
-	for _, hash := range deletedHashList {
-		if callback != nil {
-			callback(hash)
-		}
-	}
-}
-
-func (this *List) Stat(check func(hash string) bool) *Stat {
-	this.locker.RLock()
-	defer this.locker.RUnlock()
-
-	result := &Stat{
-		Count: 0,
-		Size:  0,
-	}
-	for hash, item := range this.m {
-		if !item.IsExpired() {
-			// 检查文件是否存在、内容是否正确等
-			if check != nil && check(hash) {
-				result.Count++
-				result.ValueSize += item.Size()
-				result.Size += item.TotalSize()
-			}
-		}
-	}
-	return result
-}
-
-// 总数量
-func (this *List) Count() int64 {
-	this.locker.RLock()
-	count := int64(len(this.m))
-	this.locker.RUnlock()
-	return count
-}
-
-// 添加事件
-func (this *List) OnAdd(f func(item *Item)) {
-	this.onAdd = f
-}
-
-// 删除事件
-func (this *List) OnRemove(f func(item *Item)) {
-	this.onRemove = f
-}

internal/caches/list_file.go

@@ -0,0 +1,574 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"database/sql"
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/ttlcache"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fnv"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"github.com/iwind/TeaGo/types"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+const CountFileDB = 20
+
+// FileList 文件缓存列表管理
+type FileList struct {
+	dir    string
+	dbList [CountFileDB]*FileListDB
+
+	onAdd    func(item *Item)
+	onRemove func(item *Item)
+
+	memoryCache *ttlcache.Cache[zero.Zero]
+
+	// 老数据库地址
+	oldDir string
+}
+
+func NewFileList(dir string) ListInterface {
+	return &FileList{
+		dir:         dir,
+		memoryCache: ttlcache.NewCache[zero.Zero](),
+	}
+}
+
+func (this *FileList) SetOldDir(oldDir string) {
+	this.oldDir = oldDir
+}
+
+func (this *FileList) Init() error {
+	// 检查目录是否存在
+	_, err := os.Stat(this.dir)
+	if err != nil {
+		err = os.MkdirAll(this.dir, 0777)
+		if err != nil {
+			return err
+		}
+		remotelogs.Println("CACHE", "create cache dir '"+this.dir+"'")
+	}
+
+	var dir = this.dir
+	if dir == "/" {
+		// 防止sqlite提示authority错误
+		dir = ""
+	}
+
+	remotelogs.Println("CACHE", "loading database from '"+dir+"' ...")
+	var wg = &sync.WaitGroup{}
+	var locker = sync.Mutex{}
+	var lastErr error
+
+	for i := 0; i < CountFileDB; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+
+			var db = NewFileListDB()
+			dbErr := db.Open(dir + "/db-" + types.String(i) + ".db")
+			if dbErr != nil {
+				lastErr = dbErr
+				return
+			}
+
+			dbErr = db.Init()
+			if dbErr != nil {
+				lastErr = dbErr
+				return
+			}
+
+			locker.Lock()
+			this.dbList[i] = db
+			locker.Unlock()
+		}(i)
+	}
+	wg.Wait()
+
+	if lastErr != nil {
+		return lastErr
+	}
+
+	// 升级老版本数据库
+	goman.New(func() {
+		this.upgradeOldDB()
+	})
+
+	return nil
+}
+
+func (this *FileList) Reset() error {
+	// 不做任何事情
+	return nil
+}
+
+func (this *FileList) Add(hash string, item *Item) error {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return nil
+	}
+
+	err := db.AddSync(hash, item)
+	if err != nil {
+		return err
+	}
+
+	this.memoryCache.Write(hash, zero.Zero{}, this.maxExpiresAtForMemoryCache(item.ExpiredAt))
+
+	if this.onAdd != nil {
+		this.onAdd(item)
+	}
+	return nil
+}
+
+func (this *FileList) Exist(hash string) (bool, error) {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return false, nil
+	}
+
+	// 如果Hash列表里不存在，那么必然不存在
+	if !db.hashMap.Exist(hash) {
+		return false, nil
+	}
+
+	var item = this.memoryCache.Read(hash)
+	if item != nil {
+		return true, nil
+	}
+
+	var row = db.existsByHashStmt.QueryRow(hash, time.Now().Unix())
+	if row.Err() != nil {
+		return false, nil
+	}
+
+	var expiredAt int64
+	err := row.Scan(&expiredAt)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			err = nil
+		}
+		return false, err
+	}
+	this.memoryCache.Write(hash, zero.Zero{}, this.maxExpiresAtForMemoryCache(expiredAt))
+	return true, nil
+}
+
+func (this *FileList) ExistQuick(hash string) (isReady bool, found bool) {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() || !db.HashMapIsLoaded() {
+		return
+	}
+
+	isReady = true
+	found = db.hashMap.Exist(hash)
+	return
+}
+
+// CleanPrefix 清理某个前缀的缓存数据
+func (this *FileList) CleanPrefix(prefix string) error {
+	if len(prefix) == 0 {
+		return nil
+	}
+
+	defer func() {
+		// TODO 需要优化
+		this.memoryCache.Clean()
+	}()
+
+	for _, db := range this.dbList {
+		err := db.CleanPrefix(prefix)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CleanMatchKey 清理通配符匹配的缓存数据，类似于 https://*.example.com/hello
+func (this *FileList) CleanMatchKey(key string) error {
+	if len(key) == 0 {
+		return nil
+	}
+
+	defer func() {
+		// TODO 需要优化
+		this.memoryCache.Clean()
+	}()
+
+	for _, db := range this.dbList {
+		err := db.CleanMatchKey(key)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CleanMatchPrefix 清理通配符匹配的缓存数据，类似于 https://*.example.com/prefix/
+func (this *FileList) CleanMatchPrefix(prefix string) error {
+	if len(prefix) == 0 {
+		return nil
+	}
+
+	defer func() {
+		// TODO 需要优化
+		this.memoryCache.Clean()
+	}()
+
+	for _, db := range this.dbList {
+		err := db.CleanMatchPrefix(prefix)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (this *FileList) Remove(hash string) error {
+	_, err := this.remove(hash, false)
+	return err
+}
+
+// Purge 清理过期的缓存
+// count 每次遍历的最大数量，控制此数字可以保证每次清理的时候不用花太多时间
+// callback 每次发现过期key的调用
+func (this *FileList) Purge(count int, callback func(hash string) error) (int, error) {
+	count /= CountFileDB
+	if count <= 0 {
+		count = 100
+	}
+
+	var countFound = 0
+	for _, db := range this.dbList {
+		hashStrings, err := db.ListExpiredItems(count)
+		if err != nil {
+			return 0, nil
+		}
+
+		if len(hashStrings) == 0 {
+			continue
+		}
+
+		countFound += len(hashStrings)
+
+		// 不在 rows.Next() 循环中操作是为了避免死锁
+		for _, hash := range hashStrings {
+			_, err = this.remove(hash, true)
+			if err != nil {
+				return 0, err
+			}
+
+			err = callback(hash)
+			if err != nil {
+				return 0, err
+			}
+		}
+
+		_, err = db.writeDB.Exec(`DELETE FROM "cacheItems" WHERE "hash" IN ('` + strings.Join(hashStrings, "', '") + `')`)
+		if err != nil {
+			return 0, err
+		}
+	}
+
+	return countFound, nil
+}
+
+func (this *FileList) PurgeLFU(count int, callback func(hash string) error) error {
+	count /= CountFileDB
+	if count <= 0 {
+		count = 100
+	}
+
+	for _, db := range this.dbList {
+		hashStrings, err := db.ListLFUItems(count)
+		if err != nil {
+			return err
+		}
+
+		if len(hashStrings) == 0 {
+			continue
+		}
+
+		// 不在 rows.Next() 循环中操作是为了避免死锁
+		for _, hash := range hashStrings {
+			_, err = this.remove(hash, true)
+			if err != nil {
+				return err
+			}
+
+			err = callback(hash)
+			if err != nil {
+				return err
+			}
+		}
+
+		_, err = db.writeDB.Exec(`DELETE FROM "cacheItems" WHERE "hash" IN ('` + strings.Join(hashStrings, "', '") + `')`)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (this *FileList) CleanAll() error {
+	defer this.memoryCache.Clean()
+
+	for _, db := range this.dbList {
+		err := db.CleanAll()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (this *FileList) Stat(check func(hash string) bool) (*Stat, error) {
+	var result = &Stat{}
+
+	for _, db := range this.dbList {
+		if !db.IsReady() {
+			return &Stat{}, nil
+		}
+
+		// 这里不设置过期时间、不使用 check 函数，目的是让查询更快速一些
+		_ = check
+
+		var row = db.statStmt.QueryRow()
+		if row.Err() != nil {
+			return nil, row.Err()
+		}
+		var stat = &Stat{}
+		err := row.Scan(&stat.Count, &stat.Size, &stat.ValueSize)
+		if err != nil {
+			return nil, err
+		}
+		result.Count += stat.Count
+		result.Size += stat.Size
+		result.ValueSize += stat.ValueSize
+	}
+
+	return result, nil
+}
+
+// Count 总数量
+// 常用的方法，所以避免直接查询数据库
+func (this *FileList) Count() (int64, error) {
+	var total int64
+	for _, db := range this.dbList {
+		count, err := db.Total()
+		if err != nil {
+			return 0, err
+		}
+		total += count
+	}
+	return total, nil
+}
+
+// IncreaseHit 增加点击量
+func (this *FileList) IncreaseHit(hash string) error {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return nil
+	}
+
+	return db.IncreaseHitAsync(hash)
+}
+
+// OnAdd 添加事件
+func (this *FileList) OnAdd(f func(item *Item)) {
+	this.onAdd = f
+}
+
+// OnRemove 删除事件
+func (this *FileList) OnRemove(f func(item *Item)) {
+	this.onRemove = f
+}
+
+func (this *FileList) Close() error {
+	this.memoryCache.Destroy()
+
+	for _, db := range this.dbList {
+		if db != nil {
+			_ = db.Close()
+		}
+	}
+
+	return nil
+}
+
+func (this *FileList) GetDBIndex(hash string) uint64 {
+	return fnv.HashString(hash) % CountFileDB
+}
+
+func (this *FileList) GetDB(hash string) *FileListDB {
+	return this.dbList[fnv.HashString(hash)%CountFileDB]
+}
+
+func (this *FileList) HashMapIsLoaded() bool {
+	for _, db := range this.dbList {
+		if !db.HashMapIsLoaded() {
+			return false
+		}
+	}
+	return true
+}
+
+func (this *FileList) remove(hash string, isDeleted bool) (notFound bool, err error) {
+	var db = this.GetDB(hash)
+
+	if !db.IsReady() {
+		return false, nil
+	}
+
+	// HashMap中不存在，则确定不存在
+	if !db.hashMap.Exist(hash) {
+		return true, nil
+	}
+	defer db.hashMap.Delete(hash)
+
+	// 从缓存中删除
+	this.memoryCache.Delete(hash)
+
+	if !isDeleted {
+		err = db.DeleteSync(hash)
+		if err != nil {
+			return false, db.WrapError(err)
+		}
+	}
+
+	if this.onRemove != nil {
+		// when remove file item, no any extra information needed
+		this.onRemove(nil)
+	}
+
+	return false, nil
+}
+
+// 升级老版本数据库
+func (this *FileList) upgradeOldDB() {
+	if len(this.oldDir) == 0 {
+		return
+	}
+	_ = this.UpgradeV3(this.oldDir, false)
+}
+
+func (this *FileList) UpgradeV3(oldDir string, brokenOnError bool) error {
+	// index.db
+	var indexDBPath = oldDir + "/index.db"
+	_, err := os.Stat(indexDBPath)
+	if err != nil {
+		return nil
+	}
+	remotelogs.Println("CACHE", "upgrading local database from '"+oldDir+"' ...")
+
+	defer func() {
+		_ = os.Remove(indexDBPath)
+		remotelogs.Println("CACHE", "upgrading local database finished")
+	}()
+
+	db, err := dbs.OpenWriter("file:" + indexDBPath + "?cache=shared&mode=rwc&_journal_mode=WAL&_sync=" + dbs.SyncMode + "&_locking_mode=EXCLUSIVE")
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		_ = db.Close()
+	}()
+
+	var isFinished = false
+	var offset = 0
+	var count = 10000
+
+	for {
+		if isFinished {
+			break
+		}
+
+		err = func() error {
+			defer func() {
+				offset += count
+			}()
+
+			rows, err := db.Query(`SELECT "hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "createdAt", "host", "serverId" FROM "cacheItems_v3" ORDER BY "id" ASC LIMIT ?, ?`, offset, count)
+			if err != nil {
+				return err
+			}
+			defer func() {
+				_ = rows.Close()
+			}()
+
+			var hash = ""
+			var key = ""
+			var headerSize int64
+			var bodySize int64
+			var metaSize int64
+			var expiredAt int64
+			var staleAt int64
+			var createdAt int64
+			var host string
+			var serverId int64
+
+			isFinished = true
+
+			for rows.Next() {
+				isFinished = false
+
+				err = rows.Scan(&hash, &key, &headerSize, &bodySize, &metaSize, &expiredAt, &staleAt, &createdAt, &host, &serverId)
+				if err != nil {
+					if brokenOnError {
+						return err
+					}
+					return nil
+				}
+
+				err = this.Add(hash, &Item{
+					Type:       ItemTypeFile,
+					Key:        key,
+					ExpiredAt:  expiredAt,
+					StaleAt:    staleAt,
+					HeaderSize: headerSize,
+					BodySize:   bodySize,
+					MetaSize:   metaSize,
+					Host:       host,
+					ServerId:   serverId,
+				})
+				if err != nil {
+					if brokenOnError {
+						return err
+					}
+				}
+			}
+
+			return nil
+		}()
+		if err != nil {
+			return err
+		}
+
+		time.Sleep(1 * time.Second)
+	}
+
+	return nil
+}
+
+func (this *FileList) maxExpiresAtForMemoryCache(expiresAt int64) int64 {
+	var maxTimestamp = fasttime.Now().Unix() + 3600
+	if expiresAt > maxTimestamp {
+		return maxTimestamp
+	}
+	return expiresAt
+}

internal/caches/list_file_db.go

@@ -0,0 +1,626 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"errors"
+	"fmt"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
+	"net"
+	"net/url"
+	"os"
+	"runtime"
+	"strings"
+	"time"
+)
+
+type FileListDB struct {
+	dbPath string
+
+	readDB  *dbs.DB
+	writeDB *dbs.DB
+
+	hashMap *FileListHashMap
+
+	itemsTableName string
+
+	isClosed        bool // 是否已关闭
+	isReady         bool // 是否已完成初始化
+	hashMapIsLoaded bool // Hash是否已加载
+
+	// cacheItems
+	existsByHashStmt *dbs.Stmt // 根据hash检查是否存在
+
+	insertStmt *dbs.Stmt // 写入数据
+	insertSQL  string
+
+	selectByHashStmt *dbs.Stmt // 使用hash查询数据
+
+	selectHashListStmt *dbs.Stmt
+
+	deleteByHashStmt *dbs.Stmt // 根据hash删除数据
+	deleteByHashSQL  string
+
+	statStmt           *dbs.Stmt // 统计
+	purgeStmt          *dbs.Stmt // 清理
+	deleteAllStmt      *dbs.Stmt // 删除所有数据
+	listOlderItemsStmt *dbs.Stmt // 读取较早存储的缓存
+}
+
+func NewFileListDB() *FileListDB {
+	return &FileListDB{
+		hashMap: NewFileListHashMap(),
+	}
+}
+
+func (this *FileListDB) Open(dbPath string) error {
+	this.dbPath = dbPath
+
+	// 动态调整Cache值
+	var cacheSize = 512
+	var memoryGB = utils.SystemMemoryGB()
+	if memoryGB >= 1 {
+		cacheSize = 256 * memoryGB
+	}
+
+	// write db
+	// 这里不能加 EXCLUSIVE 锁，不然异步事务可能会失败
+	writeDB, err := dbs.OpenWriter("file:" + dbPath + "?cache=private&mode=rwc&_journal_mode=WAL&_sync=" + dbs.SyncMode + "&_cache_size=" + types.String(cacheSize) + "&_secure_delete=FAST")
+	if err != nil {
+		return fmt.Errorf("open write database failed: %w", err)
+	}
+
+	writeDB.SetMaxOpenConns(1)
+
+	this.writeDB = writeDB
+
+	// TODO 耗时过长，暂时不整理数据库
+	// TODO 需要根据行数来判断是否VACUUM
+	// TODO 注意VACUUM反而可能让数据库文件变大
+	/**_, err = db.Exec("VACUUM")
+	if err != nil {
+		return err
+	}**/
+
+	// 检查是否损坏
+	// TODO 暂时屏蔽，因为用时过长
+
+	var recoverEnv, _ = os.LookupEnv("EdgeRecover")
+	if len(recoverEnv) > 0 && this.shouldRecover() {
+		for _, indexName := range []string{"staleAt", "hash"} {
+			_, _ = this.writeDB.Exec(`REINDEX "` + indexName + `"`)
+		}
+	}
+
+	if teaconst.EnableDBStat {
+		this.writeDB.EnableStat(true)
+	}
+
+	// read db
+	readDB, err := dbs.OpenReader("file:" + dbPath + "?cache=private&mode=ro&_journal_mode=WAL&_sync=OFF&_cache_size=" + types.String(cacheSize))
+	if err != nil {
+		return fmt.Errorf("open read database failed: %w", err)
+	}
+
+	readDB.SetMaxOpenConns(runtime.NumCPU())
+
+	this.readDB = readDB
+
+	if teaconst.EnableDBStat {
+		this.readDB.EnableStat(true)
+	}
+
+	return nil
+}
+
+func (this *FileListDB) Init() error {
+	this.itemsTableName = "cacheItems"
+
+	// 创建
+	var err = this.initTables(1)
+	if err != nil {
+		return fmt.Errorf("init tables failed: %w", err)
+	}
+
+	// 常用语句
+	this.existsByHashStmt, err = this.readDB.Prepare(`SELECT "expiredAt" FROM "` + this.itemsTableName + `" INDEXED BY "hash" WHERE "hash"=? AND expiredAt>? LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.insertSQL = `INSERT INTO "` + this.itemsTableName + `" ("hash", "key", "headerSize", "bodySize", "metaSize", "expiredAt", "staleAt", "host", "serverId", "createdAt") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+	this.insertStmt, err = this.writeDB.Prepare(this.insertSQL)
+	if err != nil {
+		return err
+	}
+
+	this.selectByHashStmt, err = this.readDB.Prepare(`SELECT "key", "headerSize", "bodySize", "metaSize", "expiredAt" FROM "` + this.itemsTableName + `" WHERE "hash"=? LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.selectHashListStmt, err = this.readDB.Prepare(`SELECT "id", "hash" FROM "` + this.itemsTableName + `" WHERE id>? ORDER BY id ASC LIMIT 2000`)
+	if err != nil {
+		return err
+	}
+
+	this.deleteByHashSQL = `DELETE FROM "` + this.itemsTableName + `" WHERE "hash"=?`
+	this.deleteByHashStmt, err = this.writeDB.Prepare(this.deleteByHashSQL)
+	if err != nil {
+		return err
+	}
+
+	this.statStmt, err = this.readDB.Prepare(`SELECT COUNT(*), IFNULL(SUM(headerSize+bodySize+metaSize), 0), IFNULL(SUM(headerSize+bodySize), 0) FROM "` + this.itemsTableName + `"`)
+	if err != nil {
+		return err
+	}
+
+	this.purgeStmt, err = this.readDB.Prepare(`SELECT "hash" FROM "` + this.itemsTableName + `" WHERE staleAt<=? LIMIT ?`)
+	if err != nil {
+		return err
+	}
+
+	this.deleteAllStmt, err = this.writeDB.Prepare(`DELETE FROM "` + this.itemsTableName + `"`)
+	if err != nil {
+		return err
+	}
+
+	this.listOlderItemsStmt, err = this.readDB.Prepare(`SELECT "hash" FROM "` + this.itemsTableName + `" ORDER BY "id" ASC LIMIT ?`)
+	if err != nil {
+		return err
+	}
+
+	this.isReady = true
+
+	// 加载HashMap
+	go this.loadHashMap()
+
+	return nil
+}
+
+func (this *FileListDB) IsReady() bool {
+	return this.isReady
+}
+
+func (this *FileListDB) Total() (int64, error) {
+	// 读取总数量
+	var row = this.readDB.QueryRow(`SELECT COUNT(*) FROM "` + this.itemsTableName + `"`)
+	if row.Err() != nil {
+		return 0, row.Err()
+	}
+	var total int64
+	err := row.Scan(&total)
+	return total, err
+}
+
+func (this *FileListDB) AddSync(hash string, item *Item) error {
+	this.hashMap.Add(hash)
+
+	if item.StaleAt == 0 {
+		item.StaleAt = item.ExpiredAt
+	}
+
+	_, err := this.insertStmt.Exec(hash, item.Key, item.HeaderSize, item.BodySize, item.MetaSize, item.ExpiredAt, item.StaleAt, item.Host, item.ServerId, fasttime.Now().Unix())
+	if err != nil {
+		return this.WrapError(err)
+	}
+
+	return nil
+}
+
+func (this *FileListDB) DeleteSync(hash string) error {
+	this.hashMap.Delete(hash)
+
+	_, err := this.deleteByHashStmt.Exec(hash)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (this *FileListDB) ListExpiredItems(count int) (hashList []string, err error) {
+	if !this.isReady {
+		return nil, nil
+	}
+
+	if count <= 0 {
+		count = 100
+	}
+
+	rows, err := this.purgeStmt.Query(time.Now().Unix(), count)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	for rows.Next() {
+		var hash string
+		err = rows.Scan(&hash)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, hash)
+	}
+	return hashList, nil
+}
+
+func (this *FileListDB) ListLFUItems(count int) (hashList []string, err error) {
+	if !this.isReady {
+		return nil, nil
+	}
+
+	if count <= 0 {
+		count = 100
+	}
+
+	// 先找过期的
+	hashList, err = this.ListExpiredItems(count)
+	if err != nil {
+		return
+	}
+	var l = len(hashList)
+
+	// 从旧缓存中补充
+	if l < count {
+		oldHashList, err := this.listOlderItems(count - l)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, oldHashList...)
+	}
+
+	return hashList, nil
+}
+
+func (this *FileListDB) ListHashes(lastId int64) (hashList []string, maxId int64, err error) {
+	rows, err := this.selectHashListStmt.Query(lastId)
+	if err != nil {
+		return nil, 0, err
+	}
+	var id int64
+	var hash string
+	for rows.Next() {
+		err = rows.Scan(&id, &hash)
+		if err != nil {
+			_ = rows.Close()
+			return
+		}
+		maxId = id
+		hashList = append(hashList, hash)
+	}
+
+	_ = rows.Close()
+	return
+}
+
+func (this *FileListDB) IncreaseHitAsync(hash string) error {
+	// do nothing
+	return nil
+}
+
+func (this *FileListDB) CleanPrefix(prefix string) error {
+	if !this.isReady {
+		return nil
+	}
+	var count = int64(10000)
+	var unixTime = fasttime.Now().Unix() // 只删除当前的，不删除新的
+	for {
+		result, err := this.writeDB.Exec(`UPDATE "`+this.itemsTableName+`" SET expiredAt=0,staleAt=? WHERE id IN (SELECT id FROM "`+this.itemsTableName+`" WHERE expiredAt>0 AND createdAt<=? AND INSTR("key", ?)=1 LIMIT `+types.String(count)+`)`, unixTime+DefaultStaleCacheSeconds, unixTime, prefix)
+		if err != nil {
+			return this.WrapError(err)
+		}
+		affectedRows, err := result.RowsAffected()
+		if err != nil {
+			return err
+		}
+		if affectedRows < count {
+			return nil
+		}
+	}
+}
+
+func (this *FileListDB) CleanMatchKey(key string) error {
+	if !this.isReady {
+		return nil
+	}
+
+	// 忽略 @GOEDGE_
+	if strings.Contains(key, SuffixAll) {
+		return nil
+	}
+
+	u, err := url.Parse(key)
+	if err != nil {
+		return nil
+	}
+
+	var host = u.Host
+	hostPart, _, err := net.SplitHostPort(host)
+	if err == nil && len(hostPart) > 0 {
+		host = hostPart
+	}
+	if len(host) == 0 {
+		return nil
+	}
+
+	// 转义
+	var queryKey = strings.ReplaceAll(key, "%", "\\%")
+	queryKey = strings.ReplaceAll(queryKey, "_", "\\_")
+	queryKey = strings.Replace(queryKey, "*", "%", 1)
+
+	// TODO 检查大批量数据下的操作性能
+	var unixTime = fasttime.Now().Unix() // 只删除当前的，不删除新的
+
+	_, err = this.writeDB.Exec(`UPDATE "`+this.itemsTableName+`" SET "expiredAt"=0, "staleAt"=? WHERE "host" GLOB ? AND "host" NOT GLOB ? AND "key" LIKE ? ESCAPE '\'`, unixTime+DefaultStaleCacheSeconds, host, "*."+host, queryKey)
+	if err != nil {
+		return err
+	}
+
+	_, err = this.writeDB.Exec(`UPDATE "`+this.itemsTableName+`" SET "expiredAt"=0, "staleAt"=? WHERE "host" GLOB ? AND "host" NOT GLOB ? AND "key" LIKE ? ESCAPE '\'`, unixTime+DefaultStaleCacheSeconds, host, "*."+host, queryKey+SuffixAll+"%")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (this *FileListDB) CleanMatchPrefix(prefix string) error {
+	if !this.isReady {
+		return nil
+	}
+
+	u, err := url.Parse(prefix)
+	if err != nil {
+		return nil
+	}
+
+	var host = u.Host
+	hostPart, _, err := net.SplitHostPort(host)
+	if err == nil && len(hostPart) > 0 {
+		host = hostPart
+	}
+	if len(host) == 0 {
+		return nil
+	}
+
+	// 转义
+	var queryPrefix = strings.ReplaceAll(prefix, "%", "\\%")
+	queryPrefix = strings.ReplaceAll(queryPrefix, "_", "\\_")
+	queryPrefix = strings.Replace(queryPrefix, "*", "%", 1)
+	queryPrefix += "%"
+
+	// TODO 检查大批量数据下的操作性能
+	var unixTime = fasttime.Now().Unix() // 只删除当前的，不删除新的
+
+	_, err = this.writeDB.Exec(`UPDATE "`+this.itemsTableName+`" SET "expiredAt"=0, "staleAt"=? WHERE "host" GLOB ? AND "host" NOT GLOB ? AND "key" LIKE ? ESCAPE '\'`, unixTime+DefaultStaleCacheSeconds, host, "*."+host, queryPrefix)
+	return err
+}
+
+func (this *FileListDB) CleanAll() error {
+	if !this.isReady {
+		return nil
+	}
+
+	_, err := this.deleteAllStmt.Exec()
+	if err != nil {
+		return this.WrapError(err)
+	}
+
+	this.hashMap.Clean()
+
+	return nil
+}
+
+func (this *FileListDB) Close() error {
+	if this.isClosed {
+		return nil
+	}
+
+	this.isClosed = true
+	this.isReady = false
+
+	if this.existsByHashStmt != nil {
+		_ = this.existsByHashStmt.Close()
+	}
+	if this.insertStmt != nil {
+		_ = this.insertStmt.Close()
+	}
+	if this.selectByHashStmt != nil {
+		_ = this.selectByHashStmt.Close()
+	}
+	if this.selectHashListStmt != nil {
+		_ = this.selectHashListStmt.Close()
+	}
+	if this.deleteByHashStmt != nil {
+		_ = this.deleteByHashStmt.Close()
+	}
+	if this.statStmt != nil {
+		_ = this.statStmt.Close()
+	}
+	if this.purgeStmt != nil {
+		_ = this.purgeStmt.Close()
+	}
+	if this.deleteAllStmt != nil {
+		_ = this.deleteAllStmt.Close()
+	}
+	if this.listOlderItemsStmt != nil {
+		_ = this.listOlderItemsStmt.Close()
+	}
+
+	var errStrings []string
+
+	if this.readDB != nil {
+		err := this.readDB.Close()
+		if err != nil {
+			errStrings = append(errStrings, err.Error())
+		}
+	}
+
+	if this.writeDB != nil {
+		err := this.writeDB.Close()
+		if err != nil {
+			errStrings = append(errStrings, err.Error())
+		}
+	}
+
+	if len(errStrings) == 0 {
+		return nil
+	}
+	return errors.New("close database failed: " + strings.Join(errStrings, ", "))
+}
+
+func (this *FileListDB) WrapError(err error) error {
+	if err == nil {
+		return nil
+	}
+	return fmt.Errorf("%w (file: %s)", err, this.dbPath)
+}
+
+func (this *FileListDB) HashMapIsLoaded() bool {
+	return this.hashMapIsLoaded
+}
+
+// 初始化
+func (this *FileListDB) initTables(times int) error {
+	{
+		// expiredAt - 过期时间，用来判断有无过期
+		// staleAt - 过时缓存最大时间，用来清理缓存
+		// 不对 hash 增加 unique 参数，是尽可能避免产生 malformed 错误
+		_, err := this.writeDB.Exec(`CREATE TABLE IF NOT EXISTS "` + this.itemsTableName + `" (
+  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  "hash" varchar(32),
+  "key" varchar(1024),
+  "tag" varchar(64),
+  "headerSize" integer DEFAULT 0,
+  "bodySize" integer DEFAULT 0,
+  "metaSize" integer DEFAULT 0,
+  "expiredAt" integer DEFAULT 0,
+  "staleAt" integer DEFAULT 0,
+  "createdAt" integer DEFAULT 0,
+  "host" varchar(128),
+  "serverId" integer
+);
+
+DROP INDEX IF EXISTS "createdAt";
+DROP INDEX IF EXISTS "expiredAt";
+DROP INDEX IF EXISTS "serverId";
+
+CREATE INDEX IF NOT EXISTS "staleAt"
+ON "` + this.itemsTableName + `" (
+  "staleAt" ASC
+);
+
+CREATE INDEX IF NOT EXISTS "hash"
+ON "` + this.itemsTableName + `" (
+  "hash" ASC
+);
+`)
+
+		if err != nil {
+			// 忽略可以预期的错误
+			if strings.Contains(err.Error(), "duplicate column name") {
+				err = nil
+			}
+
+			// 尝试删除重建
+			if err != nil {
+				if times < 3 {
+					_, dropErr := this.writeDB.Exec(`DROP TABLE "` + this.itemsTableName + `"`)
+					if dropErr == nil {
+						return this.initTables(times + 1)
+					}
+					return this.WrapError(err)
+				}
+
+				return this.WrapError(err)
+			}
+		}
+	}
+
+	// 删除hits表
+	{
+		_, _ = this.writeDB.Exec(`DROP TABLE "hits"`)
+	}
+
+	return nil
+}
+
+func (this *FileListDB) listOlderItems(count int) (hashList []string, err error) {
+	rows, err := this.listOlderItemsStmt.Query(count)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	for rows.Next() {
+		var hash string
+		err = rows.Scan(&hash)
+		if err != nil {
+			return nil, err
+		}
+		hashList = append(hashList, hash)
+	}
+
+	return hashList, nil
+}
+
+func (this *FileListDB) shouldRecover() bool {
+	result, err := this.writeDB.Query("pragma integrity_check;")
+	if err != nil {
+		logs.Println(result)
+	}
+	var errString = ""
+	var shouldRecover = false
+	if result.Next() {
+		_ = result.Scan(&errString)
+		if strings.TrimSpace(errString) != "ok" {
+			shouldRecover = true
+		}
+	}
+	_ = result.Close()
+	return shouldRecover
+}
+
+// 删除数据库文件
+func (this *FileListDB) deleteDB() {
+	_ = os.Remove(this.dbPath)
+	_ = os.Remove(this.dbPath + "-shm")
+	_ = os.Remove(this.dbPath + "-wal")
+}
+
+// 加载Hash列表
+func (this *FileListDB) loadHashMap() {
+	this.hashMapIsLoaded = false
+
+	err := this.hashMap.Load(this)
+	if err != nil {
+		remotelogs.Error("LIST_FILE_DB", "load hash map failed: "+err.Error()+"(file: "+this.dbPath+")")
+
+		// 自动修复错误
+		// TODO 将来希望能尽可能恢复以往数据库中的内容
+		if strings.Contains(err.Error(), "database is closed") || strings.Contains(err.Error(), "database disk image is malformed") {
+			_ = this.Close()
+			this.deleteDB()
+			remotelogs.Println("LIST_FILE_DB", "recreating the database (file:"+this.dbPath+") ...")
+			err = this.Open(this.dbPath)
+			if err != nil {
+				remotelogs.Error("LIST_FILE_DB", "recreate the database failed: "+err.Error()+" (file:"+this.dbPath+")")
+			} else {
+				_ = this.Init()
+			}
+		}
+		return
+	}
+
+	this.hashMapIsLoaded = true
+}

internal/caches/list_file_db_test.go

@@ -0,0 +1,170 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/iwind/TeaGo/Tea"
+	_ "github.com/iwind/TeaGo/bootstrap"
+	"runtime"
+	"runtime/debug"
+	"testing"
+	"time"
+)
+
+func TestFileListDB_ListLFUItems(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var db = caches.NewFileListDB()
+
+	defer func() {
+		_ = db.Close()
+	}()
+
+	err := db.Open(Tea.Root + "/data/cache-db-large.db")
+	//err := db.Open(Tea.Root + "/data/cache-index/p1/db-0.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = db.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hashList, err := db.ListLFUItems(100)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("[", len(hashList), "]", hashList)
+}
+
+func TestFileListDB_CleanMatchKey(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var db = caches.NewFileListDB()
+
+	defer func() {
+		_ = db.Close()
+	}()
+
+	err := db.Open(Tea.Root + "/data/cache-db-large.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.CleanMatchKey("https://*.goedge.cn/large-text")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.CleanMatchKey("https://*.goedge.cn:1234/large-text?%2B____")
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestFileListDB_CleanMatchPrefix(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var db = caches.NewFileListDB()
+
+	defer func() {
+		_ = db.Close()
+	}()
+
+	err := db.Open(Tea.Root + "/data/cache-db-large.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.CleanMatchPrefix("https://*.goedge.cn/large-text")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.CleanMatchPrefix("https://*.goedge.cn:1234/large-text?%2B____")
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestFileListDB_Memory(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var db = caches.NewFileListDB()
+
+	defer func() {
+		_ = db.Close()
+	}()
+
+	err := db.Open(Tea.Root + "/data/cache-index/p1/db-0.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log(db.Total())
+
+	// load hashes
+	var maxId int64
+	var hashList []string
+	var before = time.Now()
+	for i := 0; i < 1_000; i++ {
+		hashList, maxId, err = db.ListHashes(maxId)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(hashList) == 0 {
+			t.Log("hashes loaded", time.Since(before).Seconds()*1000, "ms")
+			break
+		}
+		if i%100 == 0 {
+			t.Log(i)
+		}
+	}
+
+	runtime.GC()
+	debug.FreeOSMemory()
+
+	//time.Sleep(600 * time.Second)
+
+	for i := 0; i < 1_000; i++ {
+		_, err = db.ListLFUItems(5000)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if i%100 == 0 {
+			t.Log(i)
+		}
+	}
+
+	t.Log("loaded")
+
+	runtime.GC()
+	debug.FreeOSMemory()
+
+	time.Sleep(600 * time.Second)
+}

internal/caches/list_file_hash_map.go

@@ -0,0 +1,180 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"math/big"
+	"sync"
+)
+
+const HashMapSharding = 31
+
+var bigIntPool = sync.Pool{
+	New: func() any {
+		return big.NewInt(0)
+	},
+}
+
+// FileListHashMap 文件Hash列表
+type FileListHashMap struct {
+	m []map[uint64]zero.Zero
+
+	lockers []*sync.RWMutex
+
+	isAvailable bool
+	isReady     bool
+}
+
+func NewFileListHashMap() *FileListHashMap {
+	var m = make([]map[uint64]zero.Zero, HashMapSharding)
+	var lockers = make([]*sync.RWMutex, HashMapSharding)
+
+	for i := 0; i < HashMapSharding; i++ {
+		m[i] = map[uint64]zero.Zero{}
+		lockers[i] = &sync.RWMutex{}
+	}
+
+	return &FileListHashMap{
+		m:           m,
+		lockers:     lockers,
+		isAvailable: false,
+		isReady:     false,
+	}
+}
+
+func (this *FileListHashMap) Load(db *FileListDB) error {
+	// 如果系统内存过小，我们不缓存
+	if utils.SystemMemoryGB() < 3 {
+		return nil
+	}
+
+	this.isAvailable = true
+
+	var lastId int64
+	var maxLoops = 50_000
+	for {
+		hashList, maxId, err := db.ListHashes(lastId)
+		if err != nil {
+			return err
+		}
+		if len(hashList) == 0 {
+			break
+		}
+		this.AddHashes(hashList)
+		lastId = maxId
+
+		maxLoops--
+		if maxLoops <= 0 {
+			break
+		}
+	}
+
+	this.isReady = true
+	return nil
+}
+
+func (this *FileListHashMap) Add(hash string) {
+	if !this.isAvailable {
+		return
+	}
+
+	hashInt, index := this.bigInt(hash)
+
+	this.lockers[index].Lock()
+	this.m[index][hashInt] = zero.New()
+	this.lockers[index].Unlock()
+}
+
+func (this *FileListHashMap) AddHashes(hashes []string) {
+	if !this.isAvailable {
+		return
+	}
+
+	for _, hash := range hashes {
+		hashInt, index := this.bigInt(hash)
+		this.lockers[index].Lock()
+		this.m[index][hashInt] = zero.New()
+		this.lockers[index].Unlock()
+	}
+}
+
+func (this *FileListHashMap) Delete(hash string) {
+	if !this.isAvailable {
+		return
+	}
+
+	hashInt, index := this.bigInt(hash)
+	this.lockers[index].Lock()
+	delete(this.m[index], hashInt)
+	this.lockers[index].Unlock()
+}
+
+func (this *FileListHashMap) Exist(hash string) bool {
+	if !this.isAvailable {
+		return true
+	}
+	if !this.isReady {
+		// 只有完全Ready时才能判断是否为false
+		return true
+	}
+
+	hashInt, index := this.bigInt(hash)
+
+	this.lockers[index].RLock()
+	_, ok := this.m[index][hashInt]
+	this.lockers[index].RUnlock()
+	return ok
+}
+
+func (this *FileListHashMap) Clean() {
+	for i := 0; i < HashMapSharding; i++ {
+		this.lockers[i].Lock()
+	}
+
+	this.m = make([]map[uint64]zero.Zero, HashMapSharding)
+
+	for i := HashMapSharding - 1; i >= 0; i-- {
+		this.lockers[i].Unlock()
+	}
+}
+
+func (this *FileListHashMap) IsReady() bool {
+	return this.isReady
+}
+
+func (this *FileListHashMap) Len() int {
+	for i := 0; i < HashMapSharding; i++ {
+		this.lockers[i].Lock()
+	}
+
+	var count = 0
+	for _, shard := range this.m {
+		count += len(shard)
+	}
+
+	for i := HashMapSharding - 1; i >= 0; i-- {
+		this.lockers[i].Unlock()
+	}
+
+	return count
+}
+
+func (this *FileListHashMap) SetIsAvailable(isAvailable bool) {
+	this.isAvailable = isAvailable
+}
+
+func (this *FileListHashMap) SetIsReady(isReady bool) {
+	this.isReady = isReady
+}
+
+func (this *FileListHashMap) bigInt(hash string) (hashInt uint64, index int) {
+	var bigInt = bigIntPool.Get().(*big.Int)
+	bigInt.SetString(hash, 16)
+	hashInt = bigInt.Uint64()
+	bigIntPool.Put(bigInt)
+
+	index = int(hashInt % HashMapSharding)
+	return
+}

internal/caches/list_file_hash_map_test.go

@@ -0,0 +1,157 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/assert"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"math/big"
+	"runtime"
+	"strconv"
+	"testing"
+	"time"
+)
+
+func TestFileListHashMap_Memory(t *testing.T) {
+	var stat1 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat1)
+
+	var m = caches.NewFileListHashMap()
+	m.SetIsAvailable(true)
+
+	for i := 0; i < 1_000_000; i++ {
+		m.Add(stringutil.Md5(types.String(i)))
+	}
+
+	t.Log("added:", m.Len(), "hashes")
+
+	var stat2 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat2)
+
+	t.Log("ready", (stat2.Alloc-stat1.Alloc)/1024/1024, "M")
+	t.Log("remains:", m.Len(), "hashes")
+}
+
+func TestFileListHashMap_Memory2(t *testing.T) {
+	var stat1 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat1)
+
+	var m = map[uint64]zero.Zero{}
+
+	for i := 0; i < 1_000_000; i++ {
+		m[uint64(i)] = zero.New()
+	}
+
+	var stat2 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat2)
+
+	t.Log("ready", (stat2.Alloc-stat1.Alloc)/1024/1024, "M")
+}
+
+func TestFileListHashMap_BigInt(t *testing.T) {
+	var bigInt = big.NewInt(0)
+
+	for _, s := range []string{"1", "2", "3", "123", "123456"} {
+		var hash = stringutil.Md5(s)
+
+		var bigInt1 = big.NewInt(0)
+		bigInt1.SetString(hash, 16)
+
+		bigInt.SetString(hash, 16)
+
+		t.Log(s, "=>", bigInt1.Uint64(), "hash:", hash, "format:", strconv.FormatUint(bigInt1.Uint64(), 16), strconv.FormatUint(bigInt.Uint64(), 16))
+
+		if strconv.FormatUint(bigInt1.Uint64(), 16) != strconv.FormatUint(bigInt.Uint64(), 16) {
+			t.Fatal("not equal")
+		}
+	}
+
+	for i := 0; i < 1_000_000; i++ {
+		var hash = stringutil.Md5(types.String(i))
+
+		var bigInt1 = big.NewInt(0)
+		bigInt1.SetString(hash, 16)
+
+		bigInt.SetString(hash, 16)
+
+		if bigInt1.Uint64() != bigInt.Uint64() {
+			t.Fatal(i, "not equal")
+		}
+	}
+}
+
+func TestFileListHashMap_Load(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var m = caches.NewFileListHashMap()
+	var before = time.Now()
+	var db = list.GetDB("abc")
+	err = m.Load(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+	t.Log("count:", m.Len())
+	m.Add("abc")
+
+	for _, hash := range []string{"33347bb4441265405347816cad36a0f8", "a", "abc", "123"} {
+		t.Log(hash, "=>", m.Exist(hash))
+	}
+}
+
+func TestFileListHashMap_Delete(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var m = caches.NewFileListHashMap()
+	m.SetIsReady(true)
+	m.SetIsAvailable(true)
+	m.Add("a")
+	a.IsTrue(m.Len() == 1)
+	m.Delete("a")
+	a.IsTrue(m.Len() == 0)
+}
+
+func Benchmark_BigInt(b *testing.B) {
+	var hash = stringutil.Md5("123456")
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var bigInt = big.NewInt(0)
+		bigInt.SetString(hash, 16)
+		_ = bigInt.Uint64()
+	}
+}
+
+func BenchmarkFileListHashMap_Exist(b *testing.B) {
+	var m = caches.NewFileListHashMap()
+	m.SetIsAvailable(true)
+	m.SetIsReady(true)
+
+	for i := 0; i < 1_000_000; i++ {
+		m.Add(types.String(i))
+	}
+
+	b.ReportAllocs()
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			m.Add(types.String(rands.Int64()))
+			_ = m.Exist(types.String(rands.Int64()))
+		}
+	})
+}

internal/caches/list_file_test.go

@@ -0,0 +1,393 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"strconv"
+	"sync"
+	"testing"
+	"time"
+)
+
+func TestFileList_Init(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = list.Close()
+	}()
+	t.Log("ok")
+}
+
+func TestFileList_Add(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	var hash = stringutil.Md5("123456")
+	t.Log("db index:", list.GetDBIndex(hash))
+	err = list.Add(hash, &caches.Item{
+		Key:        "123456",
+		ExpiredAt:  time.Now().Unix() + 1,
+		HeaderSize: 1,
+		MetaSize:   2,
+		BodySize:   3,
+		Host:       "teaos.cn",
+		ServerId:   1,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log(list.Exist(hash))
+
+	t.Log("ok")
+}
+
+func TestFileList_Add_Many(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var before = time.Now()
+	for i := 0; i < 10_000_000; i++ {
+		u := "https://edge.teaos.cn/123456" + strconv.Itoa(i)
+		_ = list.Add(stringutil.Md5(u), &caches.Item{
+			Key:        u,
+			ExpiredAt:  time.Now().Unix() + 3600,
+			HeaderSize: 1,
+			MetaSize:   2,
+			BodySize:   3,
+		})
+		if err != nil {
+			t.Fatal(err)
+		}
+		if i > 0 && i%10_000 == 0 {
+			t.Log(i, int(10000/time.Since(before).Seconds()), "qps")
+			before = time.Now()
+		}
+	}
+	t.Log("ok")
+}
+
+func TestFileList_Exist(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	total, _ := list.Count()
+	t.Log("total:", total)
+
+	var before = time.Now()
+	defer func() {
+		t.Log(time.Since(before).Seconds()*1000, "ms")
+	}()
+	{
+		var hash = stringutil.Md5("123456")
+		exists, err := list.Exist(hash)
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log(hash, "exists:", exists)
+	}
+	{
+		var hash = stringutil.Md5("http://edge.teaos.cn/1234561")
+		exists, err := list.Exist(hash)
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log(hash, "exists:", exists)
+	}
+}
+
+func TestFileList_Exist_Many_DB(t *testing.T) {
+	// 测试在多个数据库下的性能
+	var listSlice = []caches.ListInterface{}
+	for i := 1; i <= 10; i++ {
+		var list = caches.NewFileList(Tea.Root + "/data/data" + strconv.Itoa(i))
+		err := list.Init()
+		if err != nil {
+			t.Fatal(err)
+		}
+		listSlice = append(listSlice, list)
+	}
+
+	defer func() {
+		for _, list := range listSlice {
+			_ = list.Close()
+		}
+	}()
+
+	var wg = sync.WaitGroup{}
+	var threads = 8
+	wg.Add(threads)
+
+	var count = 200_000
+	var countLocker sync.Mutex
+	var tasks = make(chan int, count)
+	for i := 0; i < count; i++ {
+		tasks <- i
+	}
+
+	var hash = stringutil.Md5("http://edge.teaos.cn/1234561")
+
+	before := time.Now()
+	defer func() {
+		t.Log(time.Since(before).Seconds()*1000, "ms")
+	}()
+
+	for i := 0; i < threads; i++ {
+		goman.New(func() {
+			defer wg.Done()
+
+			for {
+				select {
+				case <-tasks:
+					countLocker.Lock()
+					count--
+					countLocker.Unlock()
+
+					var list = listSlice[rands.Int(0, len(listSlice)-1)]
+					_, _ = list.Exist(hash)
+				default:
+					return
+				}
+			}
+		})
+	}
+	wg.Wait()
+	t.Log("left:", count)
+}
+
+func TestFileList_CleanPrefix(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	before := time.Now()
+	err = list.CleanPrefix("123")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+}
+
+func TestFileList_Remove(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1").(*caches.FileList)
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	list.OnRemove(func(item *caches.Item) {
+		t.Logf("remove %#v", item)
+	})
+	err = list.Remove(stringutil.Md5("123456"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+
+	t.Log("===count===")
+	t.Log(list.Count())
+}
+
+func TestFileList_Purge(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var count = 0
+	_, err = list.Purge(caches.CountFileDB*2, func(hash string) error {
+		t.Log(hash)
+		count++
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok, purged", count, "items")
+}
+
+func TestFileList_PurgeLFU(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var count = 0
+	err = list.PurgeLFU(caches.CountFileDB*2, func(hash string) error {
+		t.Log(hash)
+		count++
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok, purged", count, "items")
+}
+
+func TestFileList_Stat(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	stat, err := list.Stat(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("count:", stat.Count, "size:", stat.Size, "valueSize:", stat.ValueSize)
+}
+
+func TestFileList_Count(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	var before = time.Now()
+	count, err := list.Count()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("count:", count)
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+}
+
+func TestFileList_CleanAll(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = list.CleanAll()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+	t.Log(list.Count())
+}
+
+func TestFileList_UpgradeV3(t *testing.T) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p43").(*caches.FileList)
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err = list.UpgradeV3("/Users/WorkSpace/EdgeProject/EdgeCache/p43", false)
+	if err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("ok")
+}
+
+func BenchmarkFileList_Exist(b *testing.B) {
+	var list = caches.NewFileList(Tea.Root + "/data/cache-index/p1")
+
+	defer func() {
+		_ = list.Close()
+	}()
+
+	err := list.Init()
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_, _ = list.Exist("f0eb5b87e0b0041f3917002c0707475f" + types.String(i))
+	}
+}

internal/caches/list_interface.go

@@ -0,0 +1,56 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+type ListInterface interface {
+	// Init 初始化
+	Init() error
+
+	// Reset 重置数据
+	Reset() error
+
+	// Add 添加内容
+	Add(hash string, item *Item) error
+
+	// Exist 检查内容是否存在
+	Exist(hash string) (bool, error)
+
+	// CleanPrefix 清除某个前缀的缓存
+	CleanPrefix(prefix string) error
+
+	// CleanMatchKey 清除通配符匹配的Key
+	CleanMatchKey(key string) error
+
+	// CleanMatchPrefix 清除通配符匹配的前缀
+	CleanMatchPrefix(prefix string) error
+
+	// Remove 删除内容
+	Remove(hash string) error
+
+	// Purge 清理过期数据
+	Purge(count int, callback func(hash string) error) (int, error)
+
+	// PurgeLFU 清理LFU数据
+	PurgeLFU(count int, callback func(hash string) error) error
+
+	// CleanAll 清除所有缓存
+	CleanAll() error
+
+	// Stat 统计
+	Stat(check func(hash string) bool) (*Stat, error)
+
+	// Count 总数量
+	Count() (int64, error)
+
+	// OnAdd 添加事件
+	OnAdd(f func(item *Item))
+
+	// OnRemove 删除事件
+	OnRemove(f func(item *Item))
+
+	// Close 关闭
+	Close() error
+
+	// IncreaseHit 增加点击量
+	IncreaseHit(hash string) error
+}

internal/caches/list_memory.go

@@ -0,0 +1,425 @@
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/configutils"
+	"github.com/iwind/TeaGo/logs"
+	"net"
+	"net/url"
+	"strconv"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"testing"
+)
+
+// MemoryList 内存缓存列表管理
+type MemoryList struct {
+	count int64
+
+	itemMaps map[string]map[string]*Item // prefix => { hash => item }
+
+	prefixes []string
+	locker   sync.RWMutex
+	onAdd    func(item *Item)
+	onRemove func(item *Item)
+
+	purgeIndex int
+}
+
+func NewMemoryList() ListInterface {
+	return &MemoryList{
+		itemMaps: map[string]map[string]*Item{},
+	}
+}
+
+func (this *MemoryList) Init() error {
+	this.prefixes = []string{"000"}
+	for i := 100; i <= 999; i++ {
+		this.prefixes = append(this.prefixes, strconv.Itoa(i))
+	}
+
+	for _, prefix := range this.prefixes {
+		this.itemMaps[prefix] = map[string]*Item{}
+	}
+
+	return nil
+}
+
+func (this *MemoryList) Reset() error {
+	this.locker.Lock()
+	for key := range this.itemMaps {
+		this.itemMaps[key] = map[string]*Item{}
+	}
+	this.locker.Unlock()
+
+	atomic.StoreInt64(&this.count, 0)
+
+	return nil
+}
+
+func (this *MemoryList) Add(hash string, item *Item) error {
+	this.locker.Lock()
+
+	prefix := this.prefix(hash)
+	itemMap, ok := this.itemMaps[prefix]
+	if !ok {
+		itemMap = map[string]*Item{}
+		this.itemMaps[prefix] = itemMap
+	}
+
+	// 先删除，为了可以正确触发统计
+	oldItem, ok := itemMap[hash]
+	if ok {
+		// 回调
+		if this.onRemove != nil {
+			this.onRemove(oldItem)
+		}
+	} else {
+		atomic.AddInt64(&this.count, 1)
+	}
+
+	// 添加
+	if this.onAdd != nil {
+		this.onAdd(item)
+	}
+
+	itemMap[hash] = item
+
+	this.locker.Unlock()
+	return nil
+}
+
+func (this *MemoryList) Exist(hash string) (bool, error) {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	prefix := this.prefix(hash)
+	itemMap, ok := this.itemMaps[prefix]
+	if !ok {
+		return false, nil
+	}
+	item, ok := itemMap[hash]
+	if !ok {
+		return false, nil
+	}
+
+	return !item.IsExpired(), nil
+}
+
+// CleanPrefix 根据前缀进行清除
+func (this *MemoryList) CleanPrefix(prefix string) error {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	// TODO 需要优化性能，支持千万级数据低于1s的处理速度
+	for _, itemMap := range this.itemMaps {
+		for _, item := range itemMap {
+			if strings.HasPrefix(item.Key, prefix) {
+				item.ExpiredAt = 0
+			}
+		}
+	}
+	return nil
+}
+
+// CleanMatchKey 清理通配符匹配的缓存数据，类似于 https://*.example.com/hello
+func (this *MemoryList) CleanMatchKey(key string) error {
+	if strings.Contains(key, SuffixAll) {
+		return nil
+	}
+
+	u, err := url.Parse(key)
+	if err != nil {
+		return nil
+	}
+
+	var host = u.Host
+	hostPart, _, err := net.SplitHostPort(host)
+	if err == nil && len(hostPart) > 0 {
+		host = hostPart
+	}
+
+	if len(host) == 0 {
+		return nil
+	}
+	var requestURI = u.RequestURI()
+
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	// TODO 需要优化性能，支持千万级数据低于1s的处理速度
+	for _, itemMap := range this.itemMaps {
+		for _, item := range itemMap {
+			if configutils.MatchDomain(host, item.Host) {
+				var itemRequestURI = item.RequestURI()
+				if itemRequestURI == requestURI || strings.HasPrefix(itemRequestURI, requestURI+SuffixAll) {
+					item.ExpiredAt = 0
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+// CleanMatchPrefix 清理通配符匹配的缓存数据，类似于 https://*.example.com/prefix/
+func (this *MemoryList) CleanMatchPrefix(prefix string) error {
+	u, err := url.Parse(prefix)
+	if err != nil {
+		return nil
+	}
+
+	var host = u.Host
+	hostPart, _, err := net.SplitHostPort(host)
+	if err == nil && len(hostPart) > 0 {
+		host = hostPart
+	}
+	if len(host) == 0 {
+		return nil
+	}
+	var requestURI = u.RequestURI()
+	var isRootPath = requestURI == "/"
+
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	// TODO 需要优化性能，支持千万级数据低于1s的处理速度
+	for _, itemMap := range this.itemMaps {
+		for _, item := range itemMap {
+			if configutils.MatchDomain(host, item.Host) {
+				var itemRequestURI = item.RequestURI()
+				if isRootPath || strings.HasPrefix(itemRequestURI, requestURI) {
+					item.ExpiredAt = 0
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func (this *MemoryList) Remove(hash string) error {
+	this.locker.Lock()
+
+	itemMap, ok := this.itemMaps[this.prefix(hash)]
+	if !ok {
+		this.locker.Unlock()
+		return nil
+	}
+
+	item, ok := itemMap[hash]
+	if ok {
+		if this.onRemove != nil {
+			this.onRemove(item)
+		}
+
+		atomic.AddInt64(&this.count, -1)
+		delete(itemMap, hash)
+	}
+
+	this.locker.Unlock()
+	return nil
+}
+
+// Purge 清理过期的缓存
+// count 每次遍历的最大数量，控制此数字可以保证每次清理的时候不用花太多时间
+// callback 每次发现过期key的调用
+func (this *MemoryList) Purge(count int, callback func(hash string) error) (int, error) {
+	this.locker.Lock()
+	var deletedHashList = []string{}
+
+	if this.purgeIndex >= len(this.prefixes) {
+		this.purgeIndex = 0
+	}
+	var prefix = this.prefixes[this.purgeIndex]
+
+	this.purgeIndex++
+
+	itemMap, ok := this.itemMaps[prefix]
+	if !ok {
+		this.locker.Unlock()
+		return 0, nil
+	}
+	var countFound = 0
+	for hash, item := range itemMap {
+		if count <= 0 {
+			break
+		}
+
+		if item.IsExpired() {
+			if this.onRemove != nil {
+				this.onRemove(item)
+			}
+
+			atomic.AddInt64(&this.count, -1)
+			delete(itemMap, hash)
+			deletedHashList = append(deletedHashList, hash)
+
+			countFound++
+		}
+
+		count--
+	}
+	this.locker.Unlock()
+
+	// 执行外部操作
+	for _, hash := range deletedHashList {
+		if callback != nil {
+			err := callback(hash)
+			if err != nil {
+				return 0, err
+			}
+		}
+	}
+	return countFound, nil
+}
+
+func (this *MemoryList) PurgeLFU(count int, callback func(hash string) error) error {
+	if count <= 0 {
+		return nil
+	}
+
+	var deletedHashList = []string{}
+
+	var week = currentWeek()
+	var round = 0
+
+	this.locker.Lock()
+
+Loop:
+	for {
+		var found = false
+		round++
+		for _, itemMap := range this.itemMaps {
+			for hash, item := range itemMap {
+				found = true
+
+				if week-item.Week <= 1 /** 最近有在使用 **/ && round <= 3 /** 查找轮数过多还不满足数量要求的就不再限制 **/ {
+					continue
+				}
+
+				if this.onRemove != nil {
+					this.onRemove(item)
+				}
+
+				atomic.AddInt64(&this.count, -1)
+				delete(itemMap, hash)
+				deletedHashList = append(deletedHashList, hash)
+
+				count--
+				if count <= 0 {
+					break Loop
+				}
+
+				break
+			}
+		}
+		if !found {
+			break
+		}
+	}
+
+	this.locker.Unlock()
+
+	// 执行外部操作
+	for _, hash := range deletedHashList {
+		if callback != nil {
+			err := callback(hash)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (this *MemoryList) CleanAll() error {
+	return this.Reset()
+}
+
+func (this *MemoryList) Stat(check func(hash string) bool) (*Stat, error) {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	result := &Stat{
+		Count: 0,
+		Size:  0,
+	}
+	for _, itemMap := range this.itemMaps {
+		for hash, item := range itemMap {
+			if !item.IsExpired() {
+				// 检查文件是否存在、内容是否正确等
+				if check != nil && check(hash) {
+					result.Count++
+					result.ValueSize += item.Size()
+					result.Size += item.TotalSize()
+				}
+			}
+		}
+	}
+	return result, nil
+}
+
+// Count 总数量
+func (this *MemoryList) Count() (int64, error) {
+	var count = atomic.LoadInt64(&this.count)
+	return count, nil
+}
+
+// OnAdd 添加事件
+func (this *MemoryList) OnAdd(f func(item *Item)) {
+	this.onAdd = f
+}
+
+// OnRemove 删除事件
+func (this *MemoryList) OnRemove(f func(item *Item)) {
+	this.onRemove = f
+}
+
+func (this *MemoryList) Close() error {
+	return nil
+}
+
+// IncreaseHit 增加点击量
+func (this *MemoryList) IncreaseHit(hash string) error {
+	this.locker.Lock()
+
+	itemMap, ok := this.itemMaps[this.prefix(hash)]
+	if !ok {
+		this.locker.Unlock()
+		return nil
+	}
+
+	item, ok := itemMap[hash]
+	if ok {
+		item.Week = currentWeek()
+	}
+
+	this.locker.Unlock()
+	return nil
+}
+
+func (this *MemoryList) print(t *testing.T) {
+	this.locker.Lock()
+	for _, itemMap := range this.itemMaps {
+		if len(itemMap) > 0 {
+			logs.PrintAsJSON(itemMap, t)
+		}
+	}
+	this.locker.Unlock()
+}
+
+func (this *MemoryList) prefix(hash string) string {
+	var prefix string
+	if len(hash) > 3 {
+		prefix = hash[:3]
+	} else {
+		prefix = hash
+	}
+	_, ok := this.itemMaps[prefix]
+	if !ok {
+		prefix = "000"
+	}
+	return prefix
+}

internal/caches/list_memory_test.go

@@ -0,0 +1,282 @@
+package caches
+
+import (
+	"fmt"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/cespare/xxhash"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"math/rand"
+	"sort"
+	"strconv"
+	"testing"
+	"time"
+)
+
+func TestMemoryList_Add(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	_ = list.Init()
+	_ = list.Add("a", &Item{
+		Key:        "a1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("b", &Item{
+		Key:        "b1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("123456", &Item{
+		Key:        "c1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	t.Log(list.prefixes)
+	logs.PrintAsJSON(list.itemMaps, t)
+	t.Log(list.Count())
+}
+
+func TestMemoryList_Remove(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	_ = list.Init()
+	_ = list.Add("a", &Item{
+		Key:        "a1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("b", &Item{
+		Key:        "b1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Remove("b")
+	list.print(t)
+	t.Log(list.Count())
+}
+
+func TestMemoryList_Purge(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	_ = list.Init()
+	_ = list.Add("a", &Item{
+		Key:        "a1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("b", &Item{
+		Key:        "b1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("c", &Item{
+		Key:        "c1",
+		ExpiredAt:  time.Now().Unix() - 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("d", &Item{
+		Key:        "d1",
+		ExpiredAt:  time.Now().Unix() - 2,
+		HeaderSize: 1024,
+	})
+	_, _ = list.Purge(100, func(hash string) error {
+		t.Log("delete:", hash)
+		return nil
+	})
+	list.print(t)
+
+	for i := 0; i < 1000; i++ {
+		_, _ = list.Purge(100, func(hash string) error {
+			t.Log("delete:", hash)
+			return nil
+		})
+		t.Log(list.purgeIndex)
+	}
+
+	t.Log(list.Count())
+}
+
+func TestMemoryList_Purge_Large_List(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	_ = list.Init()
+
+	for i := 0; i < 1_000_000; i++ {
+		_ = list.Add("a"+strconv.Itoa(i), &Item{
+			Key:        "a" + strconv.Itoa(i),
+			ExpiredAt:  time.Now().Unix() + int64(rands.Int(0, 24*3600)),
+			HeaderSize: 1024,
+		})
+	}
+
+	if testutils.IsSingleTesting() {
+		time.Sleep(1 * time.Hour)
+	}
+}
+
+func TestMemoryList_Stat(t *testing.T) {
+	list := NewMemoryList()
+	_ = list.Init()
+	_ = list.Add("a", &Item{
+		Key:        "a1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("b", &Item{
+		Key:        "b1",
+		ExpiredAt:  time.Now().Unix() + 3600,
+		HeaderSize: 1024,
+	})
+	_ = list.Add("c", &Item{
+		Key:        "c1",
+		ExpiredAt:  time.Now().Unix(),
+		HeaderSize: 1024,
+	})
+	_ = list.Add("d", &Item{
+		Key:        "d1",
+		ExpiredAt:  time.Now().Unix() - 2,
+		HeaderSize: 1024,
+	})
+	result, _ := list.Stat(func(hash string) bool {
+		// 随机测试
+		rand.Seed(time.Now().UnixNano())
+		return rand.Int()%2 == 0
+	})
+	t.Log(result)
+}
+
+func TestMemoryList_CleanPrefix(t *testing.T) {
+	list := NewMemoryList()
+	_ = list.Init()
+	before := time.Now()
+	for i := 0; i < 1_000_000; i++ {
+		key := "https://www.teaos.cn/hello/" + strconv.Itoa(i/10000) + "/" + strconv.Itoa(i) + ".html"
+		_ = list.Add(fmt.Sprintf("%d", xxhash.Sum64String(key)), &Item{
+			Key:        key,
+			ExpiredAt:  time.Now().Unix() + 3600,
+			BodySize:   0,
+			HeaderSize: 0,
+		})
+	}
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+
+	before = time.Now()
+	err := list.CleanPrefix("https://www.teaos.cn/hello/10")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	logs.Println(list.Stat(func(hash string) bool {
+		return true
+	}))
+
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+}
+
+func TestMapRandomDelete(t *testing.T) {
+	var countMap = map[int]int{} // k => count
+
+	for j := 0; j < 1_000_000; j++ {
+		var m = map[int]bool{}
+		for i := 0; i < 100; i++ {
+			m[i] = true
+		}
+
+		var count = 0
+		for k := range m {
+			delete(m, k)
+			count++
+			if count >= 10 {
+				break
+			}
+		}
+
+		for k := range m {
+			countMap[k]++
+		}
+	}
+
+	var counts = []int{}
+	for _, count := range countMap {
+		counts = append(counts, count)
+	}
+	sort.Ints(counts)
+	t.Log("["+types.String(len(counts))+"]", counts)
+}
+
+func TestMemoryList_PurgeLFU(t *testing.T) {
+	var list = NewMemoryList().(*MemoryList)
+
+	var before = time.Now()
+	defer func() {
+		t.Log(time.Since(before).Seconds()*1000, "ms")
+	}()
+
+	_ = list.Add("1", &Item{})
+	_ = list.Add("2", &Item{})
+	_ = list.Add("3", &Item{})
+	_ = list.Add("4", &Item{})
+	_ = list.Add("5", &Item{})
+
+	//_ = list.IncreaseHit("1")
+	//_ = list.IncreaseHit("2")
+	//_ = list.IncreaseHit("3")
+	//_ = list.IncreaseHit("4")
+	//_ = list.IncreaseHit("5")
+
+	count, err := list.Count()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("count items before purge:", count)
+
+	err = list.PurgeLFU(5, func(hash string) error {
+		t.Log("purge lfu:", hash)
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+
+	count, err = list.Count()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("count items left:", count)
+}
+
+func TestMemoryList_CleanAll(t *testing.T) {
+	var list = NewMemoryList().(*MemoryList)
+	_ = list.Add("a", &Item{})
+	_ = list.CleanAll()
+	logs.PrintAsJSON(list.itemMaps, t)
+	t.Log(list.Count())
+}
+
+func TestMemoryList_GC(t *testing.T) {
+	list := NewMemoryList().(*MemoryList)
+	_ = list.Init()
+	for i := 0; i < 1_000_000; i++ {
+		key := "https://www.teaos.cn/hello" + strconv.Itoa(i/100000) + "/" + strconv.Itoa(i) + ".html"
+		_ = list.Add(fmt.Sprintf("%d", xxhash.Sum64String(key)), &Item{
+			Key:        key,
+			ExpiredAt:  0,
+			BodySize:   0,
+			HeaderSize: 0,
+		})
+	}
+	time.Sleep(10 * time.Second)
+	t.Log("clean...", len(list.itemMaps))
+	_ = list.CleanAll()
+	t.Log("cleanAll...", len(list.itemMaps))
+	before := time.Now()
+	//runtime.GC()
+	t.Log("gc cost:", time.Since(before).Seconds()*1000, "ms")
+
+	if testutils.IsSingleTesting() {
+		timeout := time.NewTimer(2 * time.Minute)
+		<-timeout.C
+		t.Log("2 minutes passed")
+
+		time.Sleep(30 * time.Minute)
+	}
+}

internal/caches/list_test.go

@@ -1,119 +0,0 @@
-package caches
-
-import (
-	"fmt"
-	"github.com/cespare/xxhash"
-	"math/rand"
-	"strconv"
-	"testing"
-	"time"
-)
-
-func TestList_Add(t *testing.T) {
-	list := NewList()
-	list.Add("a", &Item{
-		Key:        "a1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("b", &Item{
-		Key:        "b1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	t.Log(list.m)
-}
-
-func TestList_Remove(t *testing.T) {
-	list := NewList()
-	list.Add("a", &Item{
-		Key:        "a1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("b", &Item{
-		Key:        "b1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Remove("b")
-	t.Log(list.m)
-}
-
-func TestList_Purge(t *testing.T) {
-	list := NewList()
-	list.Add("a", &Item{
-		Key:        "a1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("b", &Item{
-		Key:        "b1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("c", &Item{
-		Key:        "c1",
-		ExpiredAt:  time.Now().Unix() - 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("d", &Item{
-		Key:        "d1",
-		ExpiredAt:  time.Now().Unix() - 2,
-		HeaderSize: 1024,
-	})
-	list.Purge(100, func(hash string) {
-		t.Log("delete:", hash)
-	})
-	t.Log(list.m)
-}
-
-func TestList_Stat(t *testing.T) {
-	list := NewList()
-	list.Add("a", &Item{
-		Key:        "a1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("b", &Item{
-		Key:        "b1",
-		ExpiredAt:  time.Now().Unix() + 3600,
-		HeaderSize: 1024,
-	})
-	list.Add("c", &Item{
-		Key:        "c1",
-		ExpiredAt:  time.Now().Unix(),
-		HeaderSize: 1024,
-	})
-	list.Add("d", &Item{
-		Key:        "d1",
-		ExpiredAt:  time.Now().Unix() - 2,
-		HeaderSize: 1024,
-	})
-	result := list.Stat(func(hash string) bool {
-		// 随机测试
-		rand.Seed(time.Now().UnixNano())
-		return rand.Int()%2 == 0
-	})
-	t.Log(result)
-}
-
-func TestList_FindKeysWithPrefix(t *testing.T) {
-	list := NewList()
-	before := time.Now()
-	for i := 0; i < 1_000_000; i++ {
-		key := "http://www.teaos.cn/hello" + strconv.Itoa(i/100000) + "/" + strconv.Itoa(i) + ".html"
-		list.Add(fmt.Sprintf("%d", xxhash.Sum64String(key)), &Item{
-			Key:        key,
-			ExpiredAt:  0,
-			BodySize:   0,
-			HeaderSize: 0,
-		})
-	}
-	t.Log(time.Since(before).Seconds()*1000, "ms")
-
-	before = time.Now()
-	keys := list.FindKeysWithPrefix("http://www.teaos.cn/hello/5000")
-	t.Log(len(keys))
-	t.Log(time.Since(before).Seconds()*1000, "ms")
-}

internal/caches/manager.go

@@ -1,42 +1,76 @@
 package caches
 
 import (
+	"fmt"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/events"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
 	"github.com/iwind/TeaGo/lists"
+	"github.com/iwind/TeaGo/types"
+	"golang.org/x/sys/unix"
 	"strconv"
 	"sync"
 )
 
 var SharedManager = NewManager()
 
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	events.OnClose(func() {
+		remotelogs.Println("CACHE", "quiting cache manager")
+		SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{})
+	})
+}
+
+// Manager 缓存策略管理器
 type Manager struct {
+	// 全局配置
+	MaxDiskCapacity   *shared.SizeCapacity
+	MainDiskDir       string
+	SubDiskDirs       []*serverconfigs.CacheDir
+	MaxMemoryCapacity *shared.SizeCapacity
+
+	CountFileStorages   int
+	CountMemoryStorages int
+
 	policyMap  map[int64]*serverconfigs.HTTPCachePolicy // policyId => []*Policy
 	storageMap map[int64]StorageInterface               // policyId => *Storage
 	locker     sync.RWMutex
 }
 
+// NewManager 获取管理器对象
 func NewManager() *Manager {
-	return &Manager{
+	var m = &Manager{
 		policyMap:  map[int64]*serverconfigs.HTTPCachePolicy{},
 		storageMap: map[int64]StorageInterface{},
 	}
+
+	return m
 }
 
-// 重新设置策略
+// UpdatePolicies 重新设置策略
 func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy) {
 	this.locker.Lock()
 	defer this.locker.Unlock()
 
-	newPolicyIds := []int64{}
+	var newPolicyIds = []int64{}
 	for _, policy := range newPolicies {
+		// 使用节点单独的缓存目录
+		policy.UpdateDiskDir(this.MainDiskDir, this.SubDiskDirs)
+
 		newPolicyIds = append(newPolicyIds, policy.Id)
 	}
 
 	// 停止旧有的
 	for _, oldPolicy := range this.policyMap {
 		if !lists.ContainsInt64(newPolicyIds, oldPolicy.Id) {
-			remotelogs.Error("CACHE", "remove policy "+strconv.FormatInt(oldPolicy.Id, 10))
+			remotelogs.Println("CACHE", "remove policy "+strconv.FormatInt(oldPolicy.Id, 10))
 			delete(this.policyMap, oldPolicy.Id)
 			storage, ok := this.storageMap[oldPolicy.Id]
 			if ok {
@@ -66,7 +100,7 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 	for _, policy := range this.policyMap {
 		storage, ok := this.storageMap[policy.Id]
 		if !ok {
-			storage := this.NewStorageWithPolicy(policy)
+			storage = this.NewStorageWithPolicy(policy)
 			if storage == nil {
 				remotelogs.Error("CACHE", "can not find storage type '"+policy.Type+"'")
 				continue
@@ -80,14 +114,26 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 		} else {
 			// 检查policy是否有变化
 			if !storage.Policy().IsSame(policy) {
-				remotelogs.Println("CACHE", "policy "+strconv.FormatInt(policy.Id, 10)+" changed")
+				// 检查是否可以直接修改
+				if storage.CanUpdatePolicy(policy) {
+					err := policy.Init()
+					if err != nil {
+						remotelogs.Error("CACHE", "reload policy '"+types.String(policy.Id)+"' failed: init policy failed: "+err.Error())
+						continue
+					}
+					remotelogs.Println("CACHE", "reload policy '"+types.String(policy.Id)+"'")
+					storage.UpdatePolicy(policy)
+					continue
+				}
+
+				remotelogs.Println("CACHE", "restart policy '"+types.String(policy.Id)+"'")
 
 				// 停止老的
 				storage.Stop()
 				delete(this.storageMap, policy.Id)
 
 				// 启动新的
-				storage := this.NewStorageWithPolicy(policy)
+				storage = this.NewStorageWithPolicy(policy)
 				if storage == nil {
 					remotelogs.Error("CACHE", "can not find storage type '"+policy.Type+"'")
 					continue
@@ -101,33 +147,161 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 			}
 		}
 	}
+
+	this.CountFileStorages = 0
+	this.CountFileStorages = 0
+	for _, storage := range this.storageMap {
+		_, isFileStorage := storage.(*FileStorage)
+		this.CountMemoryStorages++
+		if isFileStorage {
+			this.CountFileStorages++
+		}
+	}
 }
 
-// 获取Policy信息
+// FindPolicy 获取Policy信息
 func (this *Manager) FindPolicy(policyId int64) *serverconfigs.HTTPCachePolicy {
 	this.locker.RLock()
 	defer this.locker.RUnlock()
 
-	p, _ := this.policyMap[policyId]
-	return p
+	return this.policyMap[policyId]
 }
 
-// 根据策略ID查找存储
+// FindStorageWithPolicy 根据策略ID查找存储
 func (this *Manager) FindStorageWithPolicy(policyId int64) StorageInterface {
 	this.locker.RLock()
 	defer this.locker.RUnlock()
 
-	storage, _ := this.storageMap[policyId]
-	return storage
+	return this.storageMap[policyId]
 }
 
-// 根据策略获取存储对象
+// NewStorageWithPolicy 根据策略获取存储对象
 func (this *Manager) NewStorageWithPolicy(policy *serverconfigs.HTTPCachePolicy) StorageInterface {
 	switch policy.Type {
 	case serverconfigs.CachePolicyStorageFile:
 		return NewFileStorage(policy)
 	case serverconfigs.CachePolicyStorageMemory:
-		return NewMemoryStorage(policy)
+		return NewMemoryStorage(policy, nil)
 	}
 	return nil
 }
+
+// StorageMap 获取已有的存储对象
+func (this *Manager) StorageMap() map[int64]StorageInterface {
+	return this.storageMap
+}
+
+// TotalDiskSize 消耗的磁盘尺寸
+func (this *Manager) TotalDiskSize() int64 {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	var total = int64(0)
+	var sidMap = map[string]bool{} // partition sid => bool
+	for _, storage := range this.storageMap {
+		// 这里不能直接用 storage.TotalDiskSize() 相加，因为多个缓存策略缓存目录可能处在同一个分区目录下
+		fileStorage, ok := storage.(*FileStorage)
+		if ok {
+			var options = fileStorage.options // copy
+			if options != nil {
+				var dir = options.Dir // copy
+				if len(dir) == 0 {
+					continue
+				}
+				var stat = &unix.Statfs_t{}
+				err := unix.Statfs(dir, stat)
+				if err != nil {
+					continue
+				}
+				var sid = fmt.Sprintf("%d_%d", stat.Fsid.Val[0], stat.Fsid.Val[1])
+				if sidMap[sid] {
+					continue
+				}
+				sidMap[sid] = true
+				total += int64(stat.Blocks-stat.Bfree) * int64(stat.Bsize) // we add extra int64() for darwin
+			}
+		}
+	}
+
+	if total < 0 {
+		total = 0
+	}
+
+	return total
+}
+
+// TotalMemorySize 消耗的内存尺寸
+func (this *Manager) TotalMemorySize() int64 {
+	this.locker.RLock()
+	defer this.locker.RUnlock()
+
+	total := int64(0)
+	for _, storage := range this.storageMap {
+		total += storage.TotalMemorySize()
+	}
+	return total
+}
+
+// FindAllCachePaths 所有缓存路径
+func (this *Manager) FindAllCachePaths() []string {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var result = []string{}
+	for _, policy := range this.policyMap {
+		if policy.Type == serverconfigs.CachePolicyStorageFile {
+			if policy.Options != nil {
+				dir, ok := policy.Options["dir"]
+				if ok {
+					var dirString = types.String(dir)
+					if len(dirString) > 0 {
+						result = append(result, dirString)
+					}
+				}
+			}
+		}
+	}
+	return result
+}
+
+// FindAllStorages 读取所有缓存存储
+func (this *Manager) FindAllStorages() []StorageInterface {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var storages = []StorageInterface{}
+	for _, storage := range this.storageMap {
+		storages = append(storages, storage)
+	}
+	return storages
+}
+
+// ScanGarbageCaches 清理目录中“失联”的缓存文件
+func (this *Manager) ScanGarbageCaches(callback func(path string) error) error {
+	var storages = this.FindAllStorages()
+	for _, storage := range storages {
+		fileStorage, ok := storage.(*FileStorage)
+		if !ok {
+			continue
+		}
+		err := fileStorage.ScanGarbageCaches(callback)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// MaxSystemMemoryBytesPerStorage 计算单个策略能使用的系统最大内存
+func (this *Manager) MaxSystemMemoryBytesPerStorage() int64 {
+	var count = this.CountMemoryStorages
+	if count < 1 {
+		count = 1
+	}
+
+	var resultBytes = int64(utils.SystemMemoryBytes()) / 3 / int64(count) // 1/3 of the system memory
+	if resultBytes < 1<<30 {
+		resultBytes = 1 << 30
+	}
+	return resultBytes
+}

internal/caches/manager_test.go

@@ -1,20 +1,22 @@
-package caches
+package caches_test
 
 import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
 	"github.com/iwind/TeaGo/Tea"
 	"testing"
 )
 
 func TestManager_UpdatePolicies(t *testing.T) {
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{}
-		SharedManager.UpdatePolicies(policies)
+		var policies = []*serverconfigs.HTTPCachePolicy{}
+		caches.SharedManager.UpdatePolicies(policies)
 		printManager(t)
 	}
 
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{
+		var policies = []*serverconfigs.HTTPCachePolicy{
 			{
 				Id:   1,
 				Type: serverconfigs.CachePolicyStorageFile,
@@ -37,12 +39,12 @@ func TestManager_UpdatePolicies(t *testing.T) {
 				},
 			},
 		}
-		SharedManager.UpdatePolicies(policies)
+		caches.SharedManager.UpdatePolicies(policies)
 		printManager(t)
 	}
 
 	{
-		policies := []*serverconfigs.HTTPCachePolicy{
+		var policies = []*serverconfigs.HTTPCachePolicy{
 			{
 				Id:   1,
 				Type: serverconfigs.CachePolicyStorageFile,
@@ -51,9 +53,8 @@ func TestManager_UpdatePolicies(t *testing.T) {
 				},
 			},
 			{
-				Id:      2,
-				Type:    serverconfigs.CachePolicyStorageFile,
-				MaxKeys: 1,
+				Id:   2,
+				Type: serverconfigs.CachePolicyStorageFile,
 				Options: map[string]interface{}{
 					"dir": Tea.Root + "/caches",
 				},
@@ -66,15 +67,66 @@ func TestManager_UpdatePolicies(t *testing.T) {
 				},
 			},
 		}
-		SharedManager.UpdatePolicies(policies)
+		caches.SharedManager.UpdatePolicies(policies)
 		printManager(t)
 	}
 }
 
+func TestManager_ChangePolicy_Memory(t *testing.T) {
+	var policies = []*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageMemory,
+			Options:  map[string]interface{}{},
+			Capacity: &shared.SizeCapacity{Count: 1, Unit: shared.SizeCapacityUnitGB},
+		},
+	}
+	caches.SharedManager.UpdatePolicies(policies)
+	caches.SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{
+		{
+			Id:       1,
+			Type:     serverconfigs.CachePolicyStorageMemory,
+			Options:  map[string]interface{}{},
+			Capacity: &shared.SizeCapacity{Count: 2, Unit: shared.SizeCapacityUnitGB},
+		},
+	})
+}
+
+func TestManager_ChangePolicy_File(t *testing.T) {
+	var policies = []*serverconfigs.HTTPCachePolicy{
+		{
+			Id:   1,
+			Type: serverconfigs.CachePolicyStorageFile,
+			Options: map[string]interface{}{
+				"dir": Tea.Root + "/data/cache-index/p1",
+			},
+			Capacity: &shared.SizeCapacity{Count: 1, Unit: shared.SizeCapacityUnitGB},
+		},
+	}
+	caches.SharedManager.UpdatePolicies(policies)
+	caches.SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{
+		{
+			Id:   1,
+			Type: serverconfigs.CachePolicyStorageFile,
+			Options: map[string]interface{}{
+				"dir": Tea.Root + "/data/cache-index/p1",
+			},
+			Capacity: &shared.SizeCapacity{Count: 2, Unit: shared.SizeCapacityUnitGB},
+		},
+	})
+}
+
+func TestManager_MaxSystemMemoryBytesPerStorage(t *testing.T) {
+	for i := 0; i < 100; i++ {
+		caches.SharedManager.CountMemoryStorages = i
+		t.Log(i, caches.SharedManager.MaxSystemMemoryBytesPerStorage()>>30, "GB")
+	}
+}
+
 func printManager(t *testing.T) {
 	t.Log("===manager==")
 	t.Log("storage:")
-	for _, storage := range SharedManager.storageMap {
+	for _, storage := range caches.SharedManager.StorageMap() {
 		t.Log("  storage:", storage.Policy().Id)
 	}
 	t.Log("===============")

internal/caches/memory_fragment_pool.go

@@ -0,0 +1,374 @@
+// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	"github.com/iwind/TeaGo/logs"
+	"os"
+	"sync"
+	"sync/atomic"
+	"time"
+)
+
+const (
+	minMemoryFragmentPoolItemSize       = 8 << 10
+	maxMemoryFragmentPoolItemSize       = 128 << 20
+	maxItemsInMemoryFragmentPoolBucket  = 1024
+	memoryFragmentPoolBucketSegmentSize = 512 << 10
+	maxMemoryFragmentPoolItemAgeSeconds = 60
+)
+
+var SharedFragmentMemoryPool *MemoryFragmentPool
+
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	SharedFragmentMemoryPool = NewMemoryFragmentPool()
+
+	goman.New(func() {
+		var ticker = time.NewTicker(200 * time.Millisecond)
+		for range ticker.C {
+			for i := 0; i < 10; i++ { // skip N empty buckets
+				var isEmpty = SharedFragmentMemoryPool.GCNextBucket()
+				if !isEmpty {
+					break
+				}
+			}
+		}
+	})
+}
+
+type MemoryFragmentPoolItem struct {
+	Bytes []byte
+
+	size      int64
+	createdAt int64
+
+	Refs int32
+}
+
+func (this *MemoryFragmentPoolItem) IsExpired() bool {
+	return this.createdAt < fasttime.Now().Unix()-maxMemoryFragmentPoolItemAgeSeconds
+}
+
+func (this *MemoryFragmentPoolItem) Reset() {
+	this.Bytes = nil
+}
+
+func (this *MemoryFragmentPoolItem) IsAvailable() bool {
+	return atomic.AddInt32(&this.Refs, 1) == 1
+}
+
+// MemoryFragmentPool memory fragments management
+type MemoryFragmentPool struct {
+	bucketMaps    []map[uint64]*MemoryFragmentPoolItem // [  { id => Zero }, ... ]
+	countBuckets  int
+	gcBucketIndex int
+
+	mu sync.RWMutex
+
+	id          uint64
+	totalMemory int64
+
+	isOk     bool
+	capacity int64
+
+	debugMode bool
+	countGet  uint64
+	countNew  uint64
+}
+
+// NewMemoryFragmentPool create new fragment memory pool
+func NewMemoryFragmentPool() *MemoryFragmentPool {
+	var pool = &MemoryFragmentPool{}
+	pool.init()
+	return pool
+}
+
+func (this *MemoryFragmentPool) init() {
+	var capacity = int64(utils.SystemMemoryGB()) << 30 / 16
+	if capacity > 256<<20 {
+		this.isOk = true
+		this.capacity = capacity
+
+		this.bucketMaps = []map[uint64]*MemoryFragmentPoolItem{}
+		for i := 0; i < maxMemoryFragmentPoolItemSize/memoryFragmentPoolBucketSegmentSize+1; i++ {
+			this.bucketMaps = append(this.bucketMaps, map[uint64]*MemoryFragmentPoolItem{})
+		}
+		this.countBuckets = len(this.bucketMaps)
+	}
+
+	// print statistics for debug
+	if len(os.Getenv("GOEDGE_DEBUG_MEMORY_FRAGMENT_POOL")) > 0 {
+		this.debugMode = true
+
+		go func() {
+			var maxRounds = 10_000
+			var ticker = time.NewTicker(10 * time.Second)
+			for range ticker.C {
+				logs.Println("reused:", this.countGet, "created:", this.countNew, "fragments:", this.Len(), "memory:", this.totalMemory>>20, "MB")
+
+				maxRounds--
+				if maxRounds <= 0 {
+					break
+				}
+			}
+		}()
+	}
+}
+
+// Get try to get a bytes object
+func (this *MemoryFragmentPool) Get(expectSize int64) (resultBytes []byte, ok bool) {
+	if !this.isOk {
+		return
+	}
+
+	if expectSize <= 0 {
+		return
+	}
+
+	// DO NOT check min segment size
+
+	this.mu.RLock()
+
+	var bucketIndex = this.bucketIndexForSize(expectSize)
+	var resultItemId uint64
+	const maxSearchingBuckets = 20
+	for i := bucketIndex; i <= bucketIndex+maxSearchingBuckets; i++ {
+		resultBytes, resultItemId, ok = this.findItemInMap(this.bucketMaps[i], expectSize)
+		if ok {
+			this.mu.RUnlock()
+
+			// remove from bucket
+			this.mu.Lock()
+			delete(this.bucketMaps[i], resultItemId)
+			this.mu.Unlock()
+
+			return
+		}
+		if i >= this.countBuckets {
+			break
+		}
+	}
+	this.mu.RUnlock()
+
+	return
+}
+
+// Put a bytes object to specified bucket
+func (this *MemoryFragmentPool) Put(data []byte) (ok bool) {
+	if !this.isOk {
+		return
+	}
+
+	var l = int64(cap(data)) // MUST be 'cap' instead of 'len'
+
+	if l < minMemoryFragmentPoolItemSize || l > maxMemoryFragmentPoolItemSize {
+		return
+	}
+
+	if atomic.LoadInt64(&this.totalMemory) >= this.capacity {
+		return
+	}
+
+	var itemId = atomic.AddUint64(&this.id, 1)
+
+	this.mu.Lock()
+	defer this.mu.Unlock()
+
+	var bucketMap = this.bucketMaps[this.bucketIndexForSize(l)]
+	if len(bucketMap) >= maxItemsInMemoryFragmentPoolBucket {
+		return
+	}
+
+	atomic.AddInt64(&this.totalMemory, l)
+
+	bucketMap[itemId] = &MemoryFragmentPoolItem{
+		Bytes:     data,
+		size:      l,
+		createdAt: fasttime.Now().Unix(),
+	}
+
+	return true
+}
+
+// GC fully GC
+func (this *MemoryFragmentPool) GC() {
+	if !this.isOk {
+		return
+	}
+
+	var totalMemory = atomic.LoadInt64(&this.totalMemory)
+	if totalMemory < this.capacity {
+		return
+	}
+
+	this.mu.Lock()
+	defer this.mu.Unlock()
+
+	var garbageSize = totalMemory * 1 / 10 // 10%
+
+	// remove expired
+	for _, bucketMap := range this.bucketMaps {
+		for itemId, item := range bucketMap {
+			if item.IsExpired() {
+				delete(bucketMap, itemId)
+				item.Reset()
+				atomic.AddInt64(&this.totalMemory, -item.size)
+
+				garbageSize -= item.size
+			}
+		}
+	}
+
+	// remove others
+	if garbageSize > 0 {
+		for _, bucketMap := range this.bucketMaps {
+			for itemId, item := range bucketMap {
+				delete(bucketMap, itemId)
+				item.Reset()
+				atomic.AddInt64(&this.totalMemory, -item.size)
+
+				garbageSize -= item.size
+				if garbageSize <= 0 {
+					break
+				}
+			}
+		}
+	}
+}
+
+// GCNextBucket gc one bucket
+func (this *MemoryFragmentPool) GCNextBucket() (isEmpty bool) {
+	if !this.isOk {
+		return
+	}
+
+	var itemIds = []uint64{}
+
+	// find
+	this.mu.RLock()
+
+	var bucketIndex = this.gcBucketIndex
+	var bucketMap = this.bucketMaps[bucketIndex]
+	isEmpty = len(bucketMap) == 0
+	if isEmpty {
+		this.mu.RUnlock()
+
+		// move to next bucket index
+		bucketIndex++
+		if bucketIndex >= this.countBuckets {
+			bucketIndex = 0
+		}
+		this.gcBucketIndex = bucketIndex
+
+		return
+	}
+
+	for itemId, item := range bucketMap {
+		if item.IsExpired() {
+			itemIds = append(itemIds, itemId)
+		}
+	}
+
+	this.mu.RUnlock()
+
+	// remove
+	if len(itemIds) > 0 {
+		this.mu.Lock()
+		for _, itemId := range itemIds {
+			item, ok := bucketMap[itemId]
+			if !ok {
+				continue
+			}
+			if !item.IsAvailable() {
+				continue
+			}
+			delete(bucketMap, itemId)
+			item.Reset()
+			atomic.AddInt64(&this.totalMemory, -item.size)
+		}
+		this.mu.Unlock()
+	}
+
+	// move to next bucket index
+	bucketIndex++
+	if bucketIndex >= this.countBuckets {
+		bucketIndex = 0
+	}
+	this.gcBucketIndex = bucketIndex
+
+	return
+}
+
+func (this *MemoryFragmentPool) SetCapacity(capacity int64) {
+	this.capacity = capacity
+}
+
+func (this *MemoryFragmentPool) TotalSize() int64 {
+	return atomic.LoadInt64(&this.totalMemory)
+}
+
+func (this *MemoryFragmentPool) Len() int {
+	this.mu.Lock()
+	defer this.mu.Unlock()
+	var count = 0
+	for _, bucketMap := range this.bucketMaps {
+		count += len(bucketMap)
+	}
+	return count
+}
+
+func (this *MemoryFragmentPool) IncreaseNew() {
+	if this.isOk && this.debugMode {
+		atomic.AddUint64(&this.countNew, 1)
+	}
+}
+
+func (this *MemoryFragmentPool) bucketIndexForSize(size int64) int {
+	return int(size / memoryFragmentPoolBucketSegmentSize)
+}
+
+func (this *MemoryFragmentPool) findItemInMap(bucketMap map[uint64]*MemoryFragmentPoolItem, expectSize int64) (resultBytes []byte, resultItemId uint64, ok bool) {
+	if len(bucketMap) == 0 {
+		return
+	}
+
+	for itemId, item := range bucketMap {
+		if item.size >= expectSize {
+			// check if is referred
+			if !item.IsAvailable() {
+				continue
+			}
+
+			// return result
+			if item.size != expectSize {
+				resultBytes = item.Bytes[:expectSize]
+			} else {
+				resultBytes = item.Bytes
+			}
+
+			// reset old item
+			item.Reset()
+			atomic.AddInt64(&this.totalMemory, -item.size)
+
+			resultItemId = itemId
+
+			if this.debugMode {
+				atomic.AddUint64(&this.countGet, 1)
+			}
+
+			ok = true
+
+			return
+		}
+	}
+
+	return
+}

internal/caches/memory_fragment_pool_test.go

@@ -0,0 +1,313 @@
+// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/iwind/TeaGo/assert"
+	"github.com/iwind/TeaGo/rands"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"runtime"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+)
+
+func TestNewMemoryFragmentPool(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var pool = caches.NewMemoryFragmentPool()
+	for i := 0; i < 3000; i++ {
+		ok := pool.Put(make([]byte, 2<<20))
+		if !ok {
+			t.Log("finished at", i)
+			break
+		}
+	}
+
+	t.Log(pool.TotalSize()>>20, "MB", pool.Len(), "items")
+
+	{
+		r, ok := pool.Get(1 << 20)
+		a.IsTrue(ok)
+		a.IsTrue(len(r) == 1<<20)
+	}
+
+	{
+		r, ok := pool.Get(2 << 20)
+		a.IsTrue(ok)
+		a.IsTrue(len(r) == 2<<20)
+	}
+
+	{
+		r, ok := pool.Get(4 << 20)
+		a.IsFalse(ok)
+		a.IsTrue(len(r) == 0)
+	}
+
+	t.Log(pool.TotalSize()>>20, "MB", pool.Len(), "items")
+}
+
+func TestNewMemoryFragmentPool_LargeBucket(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var pool = caches.NewMemoryFragmentPool()
+	{
+		pool.Put(make([]byte, 128<<20+1))
+		a.IsTrue(pool.Len() == 0)
+	}
+
+	{
+		pool.Put(make([]byte, 128<<20))
+		a.IsTrue(pool.Len() == 1)
+
+		pool.Get(118 << 20)
+		a.IsTrue(pool.Len() == 0)
+	}
+
+	{
+		pool.Put(make([]byte, 128<<20))
+		a.IsTrue(pool.Len() == 1)
+
+		pool.Get(110 << 20)
+		a.IsTrue(pool.Len() == 1)
+	}
+}
+
+func TestMemoryFragmentPool_Get_Exactly(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var pool = caches.NewMemoryFragmentPool()
+	{
+		pool.Put(make([]byte, 129<<20))
+		a.IsTrue(pool.Len() == 0)
+	}
+
+	{
+		pool.Put(make([]byte, 4<<20))
+		a.IsTrue(pool.Len() == 1)
+	}
+
+	{
+		pool.Get(4 << 20)
+		a.IsTrue(pool.Len() == 0)
+	}
+}
+
+func TestMemoryFragmentPool_Get_Round(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var pool = caches.NewMemoryFragmentPool()
+	{
+		pool.Put(make([]byte, 8<<20))
+		pool.Put(make([]byte, 8<<20))
+		pool.Put(make([]byte, 8<<20))
+		a.IsTrue(pool.Len() == 3)
+	}
+
+	{
+		resultBytes, ok := pool.Get(3 << 20)
+		a.IsTrue(pool.Len() == 2)
+		if ok {
+			pool.Put(resultBytes)
+		}
+	}
+
+	{
+		pool.Get(2 << 20)
+		a.IsTrue(pool.Len() == 2)
+	}
+
+	{
+		pool.Get(1 << 20)
+		a.IsTrue(pool.Len() == 1)
+	}
+}
+
+func TestMemoryFragmentPool_GC(t *testing.T) {
+	var pool = caches.NewMemoryFragmentPool()
+	pool.SetCapacity(32 << 20)
+	for i := 0; i < 16; i++ {
+		pool.Put(make([]byte, 4<<20))
+	}
+	var before = time.Now()
+	pool.GC()
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+	t.Log(pool.Len())
+}
+
+func TestMemoryFragmentPool_Memory(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var pool = caches.NewMemoryFragmentPool()
+
+	testutils.StartMemoryStats(t, func() {
+		t.Log(pool.Len(), "items")
+	})
+
+	var sampleData = bytes.Repeat([]byte{'A'}, 16<<20)
+
+	var countNew = 0
+	for i := 0; i < 1000; i++ {
+		cacheData, ok := pool.Get(16 << 20)
+		if ok {
+			copy(cacheData, sampleData)
+			pool.Put(cacheData)
+		} else {
+			countNew++
+			var data = make([]byte, 16<<20)
+			copy(data, sampleData)
+			pool.Put(data)
+		}
+	}
+
+	t.Log("count new:", countNew)
+	t.Log("count remains:", pool.Len())
+
+	time.Sleep(10 * time.Minute)
+}
+
+func TestMemoryFragmentPool_GCNextBucket(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var pool = caches.NewMemoryFragmentPool()
+	for i := 0; i < 1000; i++ {
+		pool.Put(make([]byte, rands.Int(0, 100)<<20))
+	}
+
+	var lastLen int
+	for {
+		pool.GCNextBucket()
+		var currentLen = pool.Len()
+		if lastLen == currentLen {
+			continue
+		}
+		lastLen = currentLen
+
+		t.Log(currentLen, "items", pool.TotalSize(), "bytes", timeutil.Format("H:i:s"))
+		time.Sleep(100 * time.Millisecond)
+
+		if currentLen == 0 {
+			break
+		}
+	}
+}
+
+func TestMemoryFragmentPoolItem(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var m = map[int]*caches.MemoryFragmentPoolItem{}
+	m[1] = &caches.MemoryFragmentPoolItem{
+		Refs: 0,
+	}
+	var item = m[1]
+	a.IsTrue(item.Refs == 0)
+	a.IsTrue(atomic.AddInt32(&item.Refs, 1) == 1)
+
+	for _, item2 := range m {
+		t.Log(item2)
+		a.IsTrue(atomic.AddInt32(&item2.Refs, 1) == 2)
+	}
+
+	t.Log(m)
+}
+
+func BenchmarkMemoryFragmentPool_Get_HIT(b *testing.B) {
+	runtime.GOMAXPROCS(4)
+
+	var pool = caches.NewMemoryFragmentPool()
+	for i := 0; i < 3000; i++ {
+		ok := pool.Put(make([]byte, 2<<20))
+		if !ok {
+			break
+		}
+	}
+
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			data, ok := pool.Get(2 << 20)
+			if ok {
+				pool.Put(data)
+			}
+		}
+	})
+}
+
+func BenchmarkMemoryFragmentPool_Get_TOTALLY_MISSING(b *testing.B) {
+	runtime.GOMAXPROCS(4)
+
+	var pool = caches.NewMemoryFragmentPool()
+	for i := 0; i < 3000; i++ {
+		ok := pool.Put(make([]byte, 2<<20+100))
+		if !ok {
+			break
+		}
+	}
+
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			data, ok := pool.Get(2<<20 + 200)
+			if ok {
+				pool.Put(data)
+			}
+		}
+	})
+}
+
+func BenchmarkMemoryPool_Get_HIT_MISSING(b *testing.B) {
+	runtime.GOMAXPROCS(4)
+
+	var pool = caches.NewMemoryFragmentPool()
+	for i := 0; i < 3000; i++ {
+		ok := pool.Put(make([]byte, rands.Int(2, 32)<<20))
+		if !ok {
+			break
+		}
+	}
+
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			data, ok := pool.Get(4 << 20)
+			if ok {
+				pool.Put(data)
+			}
+		}
+	})
+}
+
+func BenchmarkMemoryFragmentPool_GC(b *testing.B) {
+	runtime.GOMAXPROCS(4)
+
+	var pool = caches.NewMemoryFragmentPool()
+	pool.SetCapacity(1 << 30)
+	for i := 0; i < 2_000; i++ {
+		pool.Put(make([]byte, 1<<20))
+	}
+
+	var mu = sync.Mutex{}
+
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			mu.Lock()
+			for i := 0; i < 100; i++ {
+				pool.GCNextBucket()
+			}
+			mu.Unlock()
+		}
+	})
+}

internal/caches/open_file.go

@@ -0,0 +1,36 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"io"
+	"os"
+)
+
+type OpenFile struct {
+	fp      *os.File
+	meta    []byte
+	header  []byte
+	version int64
+	size    int64
+}
+
+func NewOpenFile(fp *os.File, meta []byte, header []byte, version int64, size int64) *OpenFile {
+	return &OpenFile{
+		fp:      fp,
+		meta:    meta,
+		header:  header,
+		version: version,
+		size:    size,
+	}
+}
+
+func (this *OpenFile) SeekStart() error {
+	_, err := this.fp.Seek(0, io.SeekStart)
+	return err
+}
+
+func (this *OpenFile) Close() error {
+	this.meta = nil
+	return this.fp.Close()
+}

internal/caches/open_file_cache.go

@@ -0,0 +1,204 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"fmt"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/linkedlist"
+	"github.com/fsnotify/fsnotify"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
+	"path/filepath"
+	"runtime"
+	"sync"
+	"time"
+)
+
+const (
+	maxOpenFileSize = 256 << 20
+)
+
+type OpenFileCache struct {
+	poolMap  map[string]*OpenFilePool // file path => Pool
+	poolList *linkedlist.List[*OpenFilePool]
+	watcher  *fsnotify.Watcher
+
+	locker sync.RWMutex
+
+	maxCount     int
+	capacitySize int64
+
+	count    int
+	usedSize int64
+}
+
+func NewOpenFileCache(maxCount int) (*OpenFileCache, error) {
+	if maxCount <= 0 {
+		maxCount = 16384
+	}
+
+	var cache = &OpenFileCache{
+		maxCount:     maxCount,
+		poolMap:      map[string]*OpenFilePool{},
+		poolList:     linkedlist.NewList[*OpenFilePool](),
+		capacitySize: (int64(utils.SystemMemoryGB()) << 30) / 16,
+	}
+
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return nil, err
+	}
+	cache.watcher = watcher
+
+	goman.New(func() {
+		for event := range watcher.Events {
+			if runtime.GOOS == "linux" || event.Op&fsnotify.Chmod != fsnotify.Chmod {
+				cache.Close(event.Name)
+			}
+		}
+	})
+
+	return cache, nil
+}
+
+func (this *OpenFileCache) Get(filename string) *OpenFile {
+	this.locker.RLock()
+	pool, ok := this.poolMap[filename]
+	this.locker.RUnlock()
+	if ok {
+		file, consumed, consumedSize := pool.Get()
+		if consumed {
+			this.locker.Lock()
+			this.count--
+			this.usedSize -= consumedSize
+
+			// pool如果为空，也不需要从列表中删除，避免put时需要重新创建
+
+			this.locker.Unlock()
+		}
+
+		return file
+	}
+	return nil
+}
+
+func (this *OpenFileCache) Put(filename string, file *OpenFile) {
+	if file.size > maxOpenFileSize {
+		return
+	}
+
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	// 如果超过当前容量，则关闭最早的
+	if this.count >= this.maxCount || this.usedSize+file.size >= this.capacitySize {
+		this.consumeHead()
+		return
+	}
+
+	pool, ok := this.poolMap[filename]
+	var success bool
+	if ok {
+		success = pool.Put(file)
+	} else {
+		_ = this.watcher.Add(filename)
+		pool = NewOpenFilePool(filename)
+		pool.version = file.version
+		this.poolMap[filename] = pool
+		success = pool.Put(file)
+	}
+	this.poolList.Push(pool.linkItem)
+
+	// 检查长度
+	if success {
+		this.count++
+		this.usedSize += file.size
+	}
+}
+
+func (this *OpenFileCache) Close(filename string) {
+	this.locker.Lock()
+
+	pool, ok := this.poolMap[filename]
+	if ok {
+		// 设置关闭状态
+		pool.SetClosing()
+
+		delete(this.poolMap, filename)
+		this.poolList.Remove(pool.linkItem)
+		_ = this.watcher.Remove(filename)
+		this.count -= pool.Len()
+		this.usedSize -= pool.usedSize
+	}
+
+	this.locker.Unlock()
+
+	// 在locker之外，提升性能
+	if ok {
+		pool.Close()
+	}
+}
+
+func (this *OpenFileCache) CloseAll() {
+	this.locker.Lock()
+	for _, pool := range this.poolMap {
+		pool.Close()
+	}
+	this.poolMap = map[string]*OpenFilePool{}
+	this.poolList.Reset()
+	_ = this.watcher.Close()
+	this.count = 0
+	this.usedSize = 0
+	this.locker.Unlock()
+}
+
+func (this *OpenFileCache) SetCapacity(capacityBytes int64) {
+	this.capacitySize = capacityBytes
+}
+
+func (this *OpenFileCache) Debug() {
+	var ticker = time.NewTicker(5 * time.Second)
+	goman.New(func() {
+		for range ticker.C {
+			logs.Println("==== " + types.String(this.count) + ", " + fmt.Sprintf("%.4fMB", float64(this.usedSize)/(1<<20)) + " ====")
+			this.poolList.Range(func(item *linkedlist.Item[*OpenFilePool]) (goNext bool) {
+				logs.Println(filepath.Base(item.Value.Filename()), item.Value.Len())
+				return true
+			})
+		}
+	})
+}
+
+func (this *OpenFileCache) consumeHead() {
+	var delta = 1
+
+	if this.count > 100 {
+		delta = 2
+	}
+
+	for i := 0; i < delta; i++ {
+		var head = this.poolList.Head()
+		if head == nil {
+			break
+		}
+
+		var headPool = head.Value
+		headFile, consumed, consumedSize := headPool.Get()
+		if consumed {
+			this.count--
+			this.usedSize -= consumedSize
+
+			if headFile != nil {
+				_ = headFile.Close()
+			}
+		}
+
+		if headPool.Len() == 0 {
+			delete(this.poolMap, headPool.filename)
+			this.poolList.Remove(head)
+			_ = this.watcher.Remove(headPool.filename)
+		}
+	}
+}

internal/caches/open_file_cache_test.go

@@ -0,0 +1,69 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/iwind/TeaGo/types"
+	"testing"
+	"time"
+)
+
+func TestNewOpenFileCache_Close(t *testing.T) {
+	cache, err := caches.NewOpenFileCache(1024)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cache.Debug()
+	cache.Put("a.txt", caches.NewOpenFile(nil, nil, nil, 0, 1<<20))
+	cache.Put("b.txt", caches.NewOpenFile(nil, nil, nil, 0, 1<<20))
+	cache.Put("b.txt", caches.NewOpenFile(nil, nil, nil, 0, 1<<20))
+	cache.Put("b.txt", caches.NewOpenFile(nil, nil, nil, 0, 1<<20))
+	cache.Put("c.txt", caches.NewOpenFile(nil, nil, nil, 0, 1<<20))
+
+	cache.Get("b.txt")
+	cache.Get("d.txt") // not exist
+	cache.Close("a.txt")
+
+	if testutils.IsSingleTesting() {
+		time.Sleep(100 * time.Second)
+	}
+}
+
+func TestNewOpenFileCache_OverSize(t *testing.T) {
+	cache, err := caches.NewOpenFileCache(1024)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	cache.SetCapacity(1 << 30)
+
+	cache.Debug()
+
+	for i := 0; i < 100; i++ {
+		cache.Put("a"+types.String(i)+".txt", caches.NewOpenFile(nil, nil, nil, 0, 128<<20))
+	}
+
+	if testutils.IsSingleTesting() {
+		time.Sleep(100 * time.Second)
+	}
+}
+
+func TestNewOpenFileCache_CloseAll(t *testing.T) {
+	cache, err := caches.NewOpenFileCache(1024)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cache.Debug()
+	cache.Put("a.txt", caches.NewOpenFile(nil, nil, nil, 0, 1))
+	cache.Put("b.txt", caches.NewOpenFile(nil, nil, nil, 0, 1))
+	cache.Put("c.txt", caches.NewOpenFile(nil, nil, nil, 0, 1))
+	cache.Get("b.txt")
+	cache.Get("d.txt")
+	cache.CloseAll()
+
+	if testutils.IsSingleTesting() {
+		time.Sleep(6 * time.Second)
+	}
+}

internal/caches/open_file_pool.go

@@ -0,0 +1,106 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/linkedlist"
+)
+
+type OpenFilePool struct {
+	c        chan *OpenFile
+	linkItem *linkedlist.Item[*OpenFilePool]
+	filename string
+	version  int64
+	isClosed bool
+	usedSize int64
+}
+
+func NewOpenFilePool(filename string) *OpenFilePool {
+	var pool = &OpenFilePool{
+		filename: filename,
+		c:        make(chan *OpenFile, 1024),
+		version:  fasttime.Now().UnixMilli(),
+	}
+	pool.linkItem = linkedlist.NewItem[*OpenFilePool](pool)
+	return pool
+}
+
+func (this *OpenFilePool) Filename() string {
+	return this.filename
+}
+
+func (this *OpenFilePool) Get() (resultFile *OpenFile, consumed bool, consumedSize int64) {
+	// 如果已经关闭，直接返回
+	if this.isClosed {
+		return nil, false, 0
+	}
+
+	select {
+	case file := <-this.c:
+		if file != nil {
+			this.usedSize -= file.size
+
+			err := file.SeekStart()
+			if err != nil {
+				_ = file.Close()
+				return nil, true, file.size
+			}
+			file.version = this.version
+
+			return file, true, file.size
+		}
+		return nil, false, 0
+	default:
+		return nil, false, 0
+	}
+}
+
+func (this *OpenFilePool) Put(file *OpenFile) bool {
+	// 如果已关闭，则不接受新的文件
+	if this.isClosed {
+		_ = file.Close()
+		return false
+	}
+
+	// 检查文件版本号
+	if this.version > 0 && file.version > 0 && file.version != this.version {
+		_ = file.Close()
+		return false
+	}
+
+	// 加入Pool
+	select {
+	case this.c <- file:
+		this.usedSize += file.size
+		return true
+	default:
+		// 多余的直接关闭
+		_ = file.Close()
+		return false
+	}
+}
+
+func (this *OpenFilePool) Len() int {
+	return len(this.c)
+}
+
+func (this *OpenFilePool) TotalSize() int64 {
+	return this.usedSize
+}
+
+func (this *OpenFilePool) SetClosing() {
+	this.isClosed = true
+}
+
+func (this *OpenFilePool) Close() {
+	this.isClosed = true
+	for {
+		select {
+		case file := <-this.c:
+			_ = file.Close()
+		default:
+			return
+		}
+	}
+}

internal/caches/open_file_pool_test.go

@@ -0,0 +1,46 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/iwind/TeaGo/rands"
+	"sync"
+	"testing"
+)
+
+func TestOpenFilePool_Get(t *testing.T) {
+	var pool = caches.NewOpenFilePool("a")
+	t.Log(pool.Filename())
+	t.Log(pool.Get())
+	t.Log(pool.Put(caches.NewOpenFile(nil, nil, nil, 0, 1)))
+	t.Log(pool.Get())
+	t.Log(pool.Get())
+}
+
+func TestOpenFilePool_Close(t *testing.T) {
+	var pool = caches.NewOpenFilePool("a")
+	pool.Put(caches.NewOpenFile(nil, nil, nil, 0, 1))
+	pool.Put(caches.NewOpenFile(nil, nil, nil, 0, 1))
+	pool.Close()
+}
+
+func TestOpenFilePool_Concurrent(t *testing.T) {
+	var pool = caches.NewOpenFilePool("a")
+	var concurrent = 1000
+	var wg = &sync.WaitGroup{}
+	wg.Add(concurrent)
+	for i := 0; i < concurrent; i++ {
+		go func() {
+			defer wg.Done()
+
+			if rands.Int(0, 1) == 1 {
+				pool.Put(caches.NewOpenFile(nil, nil, nil, 0, 1))
+			}
+			if rands.Int(0, 1) == 0 {
+				pool.Get()
+			}
+		}()
+	}
+	wg.Wait()
+}

internal/caches/partial_ranges.go

@@ -0,0 +1,246 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/iwind/TeaGo/types"
+	"os"
+	"strconv"
+)
+
+// PartialRanges 内容分区范围定义
+type PartialRanges struct {
+	Version  int        `json:"version"`  // 版本号
+	Ranges   [][2]int64 `json:"ranges"`   // 范围
+	BodySize int64      `json:"bodySize"` // 总长度
+}
+
+// NewPartialRanges 获取新对象
+func NewPartialRanges(expiresAt int64) *PartialRanges {
+	return &PartialRanges{
+		Ranges:  [][2]int64{},
+		Version: 1,
+	}
+}
+
+// NewPartialRangesFromData 从数据中解析范围
+func NewPartialRangesFromData(data []byte) (*PartialRanges, error) {
+	var rs = NewPartialRanges(0)
+	for {
+		var index = bytes.IndexRune(data, '\n')
+		if index < 0 {
+			break
+		}
+		var line = data[:index]
+		var colonIndex = bytes.IndexRune(line, ':')
+		if colonIndex > 0 {
+			switch string(line[:colonIndex]) {
+			case "v": // 版本号
+				rs.Version = types.Int(line[colonIndex+1:])
+			case "b": // 总长度
+				rs.BodySize = types.Int64(line[colonIndex+1:])
+			case "r": // 范围信息
+				var commaIndex = bytes.IndexRune(line, ',')
+				if commaIndex > 0 {
+					rs.Ranges = append(rs.Ranges, [2]int64{types.Int64(line[colonIndex+1 : commaIndex]), types.Int64(line[commaIndex+1:])})
+				}
+			}
+		}
+		data = data[index+1:]
+		if len(data) == 0 {
+			break
+		}
+	}
+	return rs, nil
+}
+
+// NewPartialRangesFromJSON 从JSON中解析范围
+func NewPartialRangesFromJSON(data []byte) (*PartialRanges, error) {
+	var rs = NewPartialRanges(0)
+	err := json.Unmarshal(data, &rs)
+	if err != nil {
+		return nil, err
+	}
+	rs.Version = 0
+
+	return rs, nil
+}
+
+// NewPartialRangesFromFile 从文件中加载范围信息
+func NewPartialRangesFromFile(path string) (*PartialRanges, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	if len(data) == 0 {
+		return NewPartialRanges(0), nil
+	}
+
+	// 兼容老的JSON格式
+	if data[0] == '{' {
+		return NewPartialRangesFromJSON(data)
+	}
+
+	// 新的格式
+	return NewPartialRangesFromData(data)
+}
+
+// Add 添加新范围
+func (this *PartialRanges) Add(begin int64, end int64) {
+	if begin > end {
+		begin, end = end, begin
+	}
+
+	var nr = [2]int64{begin, end}
+
+	var count = len(this.Ranges)
+	if count == 0 {
+		this.Ranges = [][2]int64{nr}
+		return
+	}
+
+	// insert
+	// TODO 将来使用二分法改进
+	var index = -1
+	for i, r := range this.Ranges {
+		if r[0] > begin || (r[0] == begin && r[1] >= end) {
+			index = i
+			this.Ranges = append(this.Ranges, [2]int64{})
+			copy(this.Ranges[index+1:], this.Ranges[index:])
+			this.Ranges[index] = nr
+			break
+		}
+	}
+
+	if index == -1 {
+		index = count
+		this.Ranges = append(this.Ranges, nr)
+	}
+
+	this.merge(index)
+}
+
+// Contains 检查是否包含某个范围
+func (this *PartialRanges) Contains(begin int64, end int64) bool {
+	if len(this.Ranges) == 0 {
+		return false
+	}
+
+	// TODO 使用二分法查找改进性能
+	for _, r2 := range this.Ranges {
+		if r2[0] <= begin && r2[1] >= end {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Nearest 查找最近的某个范围
+func (this *PartialRanges) Nearest(begin int64, end int64) (r [2]int64, ok bool) {
+	if len(this.Ranges) == 0 {
+		return
+	}
+
+	// TODO 使用二分法查找改进性能
+	for _, r2 := range this.Ranges {
+		if r2[0] <= begin && r2[1] > begin {
+			r = [2]int64{begin, this.min(end, r2[1])}
+			ok = true
+			return
+		}
+	}
+	return
+}
+
+// 转换为字符串
+func (this *PartialRanges) String() string {
+	var s = "v:" + strconv.Itoa(this.Version) + "\n" + // version
+		"b:" + this.formatInt64(this.BodySize) + "\n" // bodySize
+	for _, r := range this.Ranges {
+		s += "r:" + this.formatInt64(r[0]) + "," + this.formatInt64(r[1]) + "\n" // range
+	}
+	return s
+}
+
+// Bytes 将内容转换为字节
+func (this *PartialRanges) Bytes() []byte {
+	return []byte(this.String())
+}
+
+// WriteToFile 写入到文件中
+func (this *PartialRanges) WriteToFile(path string) error {
+	return os.WriteFile(path, this.Bytes(), 0666)
+}
+
+// Max 获取最大位置
+func (this *PartialRanges) Max() int64 {
+	if len(this.Ranges) > 0 {
+		return this.Ranges[len(this.Ranges)-1][1]
+	}
+	return 0
+}
+
+// Reset 重置范围信息
+func (this *PartialRanges) Reset() {
+	this.Ranges = [][2]int64{}
+}
+
+func (this *PartialRanges) merge(index int) {
+	// forward
+	var lastIndex = index
+	for i := index; i >= 1; i-- {
+		var curr = this.Ranges[i]
+		var prev = this.Ranges[i-1]
+		var w1 = this.w(curr)
+		var w2 = this.w(prev)
+		if w1+w2 >= this.max(curr[1], prev[1])-this.min(curr[0], prev[0])-1 {
+			prev = [2]int64{this.min(curr[0], prev[0]), this.max(curr[1], prev[1])}
+			this.Ranges[i-1] = prev
+			this.Ranges = append(this.Ranges[:i], this.Ranges[i+1:]...)
+			lastIndex = i - 1
+		} else {
+			break
+		}
+	}
+
+	// backward
+	index = lastIndex
+	for index < len(this.Ranges)-1 {
+		var curr = this.Ranges[index]
+		var next = this.Ranges[index+1]
+		var w1 = this.w(curr)
+		var w2 = this.w(next)
+		if w1+w2 >= this.max(curr[1], next[1])-this.min(curr[0], next[0])-1 {
+			curr = [2]int64{this.min(curr[0], next[0]), this.max(curr[1], next[1])}
+			this.Ranges = append(this.Ranges[:index], this.Ranges[index+1:]...)
+			this.Ranges[index] = curr
+		} else {
+			break
+		}
+	}
+}
+
+func (this *PartialRanges) w(r [2]int64) int64 {
+	return r[1] - r[0]
+}
+
+func (this *PartialRanges) min(n1 int64, n2 int64) int64 {
+	if n1 <= n2 {
+		return n1
+	}
+	return n2
+}
+
+func (this *PartialRanges) max(n1 int64, n2 int64) int64 {
+	if n1 >= n2 {
+		return n1
+	}
+	return n2
+}
+
+func (this *PartialRanges) formatInt64(i int64) string {
+	return strconv.FormatInt(i, 10)
+}

internal/caches/partial_ranges_test.go

@@ -0,0 +1,232 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/iwind/TeaGo/assert"
+	"github.com/iwind/TeaGo/logs"
+	"testing"
+	"time"
+)
+
+func TestNewPartialRanges(t *testing.T) {
+	var r = caches.NewPartialRanges(0)
+	r.Add(1, 100)
+	r.Add(50, 300)
+
+	r.Add(30, 80)
+	r.Add(30, 100)
+	r.Add(30, 400)
+	r.Add(1000, 10000)
+	r.Add(200, 1000)
+	r.Add(200, 10040)
+
+	logs.PrintAsJSON(r.Ranges, t)
+	t.Log("max:", r.Max())
+}
+
+func TestNewPartialRanges1(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var r = caches.NewPartialRanges(0)
+	r.Add(1, 100)
+	r.Add(1, 101)
+	r.Add(1, 102)
+	r.Add(2, 103)
+	r.Add(200, 300)
+	r.Add(1, 1000)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+	a.IsTrue(len(rs) == 1)
+	if len(rs) == 1 {
+		a.IsTrue(rs[0][0] == 1)
+		a.IsTrue(rs[0][1] == 1000)
+	}
+}
+
+func TestNewPartialRanges2(t *testing.T) {
+	// low -> high
+	var r = caches.NewPartialRanges(0)
+	r.Add(1, 100)
+	r.Add(1, 101)
+	r.Add(1, 102)
+	r.Add(2, 103)
+	r.Add(200, 300)
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(250, 400)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+}
+
+func TestNewPartialRanges3(t *testing.T) {
+	// high -> low
+	var r = caches.NewPartialRanges(0)
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(200, 300)
+	r.Add(250, 400)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+}
+
+func TestNewPartialRanges4(t *testing.T) {
+	// nearby
+	var r = caches.NewPartialRanges(0)
+	r.Add(301, 302)
+	r.Add(303, 304)
+	r.Add(305, 306)
+
+	r.Add(417, 417)
+	r.Add(410, 415)
+	r.Add(400, 409)
+
+	var rs = r.Ranges
+	logs.PrintAsJSON(rs, t)
+	t.Log(r.Contains(400, 416))
+}
+
+func TestNewPartialRanges5(t *testing.T) {
+	var r = caches.NewPartialRanges(0)
+	for j := 0; j < 1000; j++ {
+		r.Add(int64(j), int64(j+100))
+	}
+	logs.PrintAsJSON(r.Ranges, t)
+}
+
+func TestNewPartialRanges_Nearest(t *testing.T) {
+	{
+		// nearby
+		var r = caches.NewPartialRanges(0)
+		r.Add(301, 400)
+		r.Add(401, 500)
+		r.Add(501, 600)
+
+		t.Log(r.Nearest(100, 200))
+		t.Log(r.Nearest(300, 350))
+		t.Log(r.Nearest(302, 350))
+	}
+
+	{
+		// nearby
+		var r = caches.NewPartialRanges(0)
+		r.Add(301, 400)
+		r.Add(450, 500)
+		r.Add(550, 600)
+
+		t.Log(r.Nearest(100, 200))
+		t.Log(r.Nearest(300, 350))
+		t.Log(r.Nearest(302, 350))
+		t.Log(r.Nearest(302, 440))
+		t.Log(r.Nearest(302, 1000))
+	}
+}
+
+func TestNewPartialRanges_Large_Range(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	var largeSize int64 = 10000000000000
+	t.Log(largeSize/1024/1024/1024, "G")
+
+	var r = caches.NewPartialRanges(0)
+	r.Add(1, largeSize)
+	var s = r.String()
+	t.Log(s)
+
+	r2, err := caches.NewPartialRangesFromData([]byte(s))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	a.IsTrue(largeSize == r2.Ranges[0][1])
+	logs.PrintAsJSON(r, t)
+}
+
+func TestPartialRanges_Encode_JSON(t *testing.T) {
+	var r = caches.NewPartialRanges(0)
+	for i := 0; i < 10; i++ {
+		r.Ranges = append(r.Ranges, [2]int64{int64(i * 100), int64(i*100 + 100)})
+	}
+	var before = time.Now()
+	data, err := json.Marshal(r)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+	t.Log(len(data))
+}
+
+func TestPartialRanges_Encode_String(t *testing.T) {
+	var r = caches.NewPartialRanges(0)
+	r.BodySize = 1024
+	for i := 0; i < 10; i++ {
+		r.Ranges = append(r.Ranges, [2]int64{int64(i * 100), int64(i*100 + 100)})
+	}
+	var before = time.Now()
+	var data = r.String()
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+	t.Log(len(data))
+
+	r2, err := caches.NewPartialRangesFromData([]byte(data))
+	if err != nil {
+		t.Fatal(err)
+	}
+	logs.PrintAsJSON(r2, t)
+}
+
+func TestPartialRanges_Version(t *testing.T) {
+	{
+		ranges, err := caches.NewPartialRangesFromData([]byte(`e:1668928495
+r:0,1048576
+r:1140260864,1140295164`))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("version:", ranges.Version)
+	}
+	{
+		ranges, err := caches.NewPartialRangesFromData([]byte(`e:1668928495
+r:0,1048576
+r:1140260864,1140295164
+v:0
+`))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("version:", ranges.Version)
+	}
+	{
+		ranges, err := caches.NewPartialRangesFromJSON([]byte(`{}`))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("version:", ranges.Version)
+	}
+}
+
+func BenchmarkNewPartialRanges(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		var r = caches.NewPartialRanges(0)
+		for j := 0; j < 1000; j++ {
+			r.Add(int64(j), int64(j+100))
+		}
+	}
+}
+
+func BenchmarkPartialRanges_String(b *testing.B) {
+	var r = caches.NewPartialRanges(0)
+	r.BodySize = 1024
+	for i := 0; i < 10; i++ {
+		r.Ranges = append(r.Ranges, [2]int64{int64(i * 100), int64(i*100 + 100)})
+	}
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		_ = r.String()
+	}
+}

internal/caches/reader.go

@@ -1,29 +1,46 @@
 package caches
 
+import "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
+
 type ReaderFunc func(n int) (goNext bool, err error)
 
 type Reader interface {
-	// 初始化
+	// Init 初始化
 	Init() error
 
-	// 状态码
+	// TypeName 类型名称
+	TypeName() string
+
+	// ExpiresAt 过期时间
+	ExpiresAt() int64
+
+	// Status 状态码
 	Status() int
 
-	// 读取Header
+	// LastModified 最后修改时间
+	LastModified() int64
+
+	// ReadHeader 读取Header
 	ReadHeader(buf []byte, callback ReaderFunc) error
 
-	// 读取Body
+	// ReadBody 读取Body
 	ReadBody(buf []byte, callback ReaderFunc) error
 
-	// 读取某个范围内的Body
+	// Read 实现io.Reader接口
+	Read(buf []byte) (int, error)
+
+	// ReadBodyRange 读取某个范围内的Body
 	ReadBodyRange(buf []byte, start int64, end int64, callback ReaderFunc) error
 
-	// Header Size
+	// HeaderSize Header Size
 	HeaderSize() int64
 
-	// Body Size
+	// BodySize Body Size
 	BodySize() int64
 
-	// 关闭
+	// ContainsRange 是否包含某个区间内容
+	ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool)
+
+	// Close 关闭
 	Close() error
 }

internal/caches/reader_file.go

@@ -3,6 +3,7 @@ package caches
 import (
 	"encoding/binary"
 	"errors"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
 	"github.com/iwind/TeaGo/types"
 	"io"
 	"os"
@@ -11,14 +12,20 @@ import (
 type FileReader struct {
 	fp *os.File
 
+	openFile      *OpenFile
+	openFileCache *OpenFileCache
+
+	meta   []byte
+	header []byte
+
+	expiresAt    int64
 	status       int
 	headerOffset int64
 	headerSize   int
 	bodySize     int64
 	bodyOffset   int64
 
-	bodyBufLen int
-	bodyBuf    []byte
+	isClosed bool
 }
 
 func NewFileReader(fp *os.File) *FileReader {
@@ -26,59 +33,51 @@ func NewFileReader(fp *os.File) *FileReader {
 }
 
 func (this *FileReader) Init() error {
-	isOk := false
+	return this.InitAutoDiscard(true)
+}
 
-	defer func() {
-		if !isOk {
-			_ = this.discard()
+func (this *FileReader) InitAutoDiscard(autoDiscard bool) error {
+	if this.openFile != nil {
+		this.meta = this.openFile.meta
+		this.header = this.openFile.header
+	}
+
+	var isOk = false
+
+	if autoDiscard {
+		defer func() {
+			if !isOk {
+				_ = this.discard()
+			}
+		}()
+	}
+
+	var buf = this.meta
+	if len(buf) == 0 {
+		buf = make([]byte, SizeMeta)
+		ok, err := this.readToBuff(this.fp, buf)
+		if err != nil {
+			return err
 		}
-	}()
+		if !ok {
+			return ErrNotFound
+		}
+		this.meta = buf
+	}
 
-	// 读取状态
-	_, err := this.fp.Seek(SizeExpiresAt, io.SeekStart)
-	if err != nil {
-		_ = this.discard()
-		return err
-	}
-	buf := make([]byte, 3)
-	ok, err := this.readToBuff(this.fp, buf)
-	if err != nil {
-		return err
-	}
-	if !ok {
-		return ErrNotFound
-	}
-	status := types.Int(string(buf))
+	this.expiresAt = int64(binary.BigEndian.Uint32(buf[:SizeExpiresAt]))
+
+	var status = types.Int(string(buf[OffsetStatus : OffsetStatus+SizeStatus]))
 	if status < 100 || status > 999 {
 		return errors.New("invalid status")
 	}
 	this.status = status
 
 	// URL
-	_, err = this.fp.Seek(SizeExpiresAt+SizeStatus, io.SeekStart)
-	if err != nil {
-		return err
-	}
-
-	bytes4 := make([]byte, 4)
-	ok, err = this.readToBuff(this.fp, bytes4)
-	if err != nil {
-		return err
-	}
-	if !ok {
-		return ErrNotFound
-	}
-	urlLength := binary.BigEndian.Uint32(bytes4)
+	var urlLength = binary.BigEndian.Uint32(buf[OffsetURLLength : OffsetURLLength+SizeURLLength])
 
 	// header
-	ok, err = this.readToBuff(this.fp, bytes4)
-	if err != nil {
-		return err
-	}
-	if !ok {
-		return ErrNotFound
-	}
-	headerSize := int(binary.BigEndian.Uint32(bytes4))
+	var headerSize = int(binary.BigEndian.Uint32(buf[OffsetHeaderLength : OffsetHeaderLength+SizeHeaderLength]))
 	if headerSize == 0 {
 		return nil
 	}
@@ -86,30 +85,54 @@ func (this *FileReader) Init() error {
 	this.headerOffset = int64(SizeMeta) + int64(urlLength)
 
 	// body
-	bytes8 := make([]byte, 8)
-	ok, err = this.readToBuff(this.fp, bytes8)
-	if err != nil {
-		return err
-	}
-	if !ok {
-		return ErrNotFound
-	}
-	bodySize := int(binary.BigEndian.Uint64(bytes8))
+	this.bodyOffset = this.headerOffset + int64(headerSize)
+	var bodySize = int(binary.BigEndian.Uint64(buf[OffsetBodyLength : OffsetBodyLength+SizeBodyLength]))
 	if bodySize == 0 {
+		isOk = true
 		return nil
 	}
 	this.bodySize = int64(bodySize)
-	this.bodyOffset = this.headerOffset + int64(headerSize)
+
+	// read header
+	if this.openFileCache != nil && len(this.header) == 0 {
+		if headerSize > 0 && headerSize <= 512 {
+			this.header = make([]byte, headerSize)
+			_, err := this.fp.Seek(this.headerOffset, io.SeekStart)
+			if err != nil {
+				return err
+			}
+			_, err = this.readToBuff(this.fp, this.header)
+			if err != nil {
+				return err
+			}
+		}
+	}
 
 	isOk = true
 
 	return nil
 }
 
+func (this *FileReader) TypeName() string {
+	return "disk"
+}
+
+func (this *FileReader) ExpiresAt() int64 {
+	return this.expiresAt
+}
+
 func (this *FileReader) Status() int {
 	return this.status
 }
 
+func (this *FileReader) LastModified() int64 {
+	stat, err := this.fp.Stat()
+	if err != nil {
+		return 0
+	}
+	return stat.ModTime().Unix()
+}
+
 func (this *FileReader) HeaderSize() int64 {
 	return int64(this.headerSize)
 }
@@ -119,7 +142,23 @@ func (this *FileReader) BodySize() int64 {
 }
 
 func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
-	isOk := false
+	// 使用缓存
+	if len(this.header) > 0 && len(buf) >= len(this.header) {
+		copy(buf, this.header)
+		_, err := callback(len(this.header))
+		if err != nil {
+			return err
+		}
+
+		// 移动到Body位置
+		_, err = this.fp.Seek(this.bodyOffset, io.SeekStart)
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+
+	var isOk = false
 
 	defer func() {
 		if !isOk {
@@ -132,7 +171,7 @@ func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
 		return err
 	}
 
-	headerSize := this.headerSize
+	var headerSize = this.headerSize
 
 	for {
 		n, err := this.fp.Read(buf)
@@ -148,10 +187,6 @@ func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
 				}
 				headerSize -= n
 			} else {
-				if n > headerSize {
-					this.bodyBuf = buf[headerSize:]
-					this.bodyBufLen = n - headerSize
-				}
 				_, e := callback(headerSize)
 				if e != nil {
 					isOk = true
@@ -170,11 +205,21 @@ func (this *FileReader) ReadHeader(buf []byte, callback ReaderFunc) error {
 
 	isOk = true
 
+	// 移动到Body位置
+	_, err = this.fp.Seek(this.bodyOffset, io.SeekStart)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }
 
 func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
-	isOk := false
+	if this.bodySize == 0 {
+		return nil
+	}
+
+	var isOk = false
 
 	defer func() {
 		if !isOk {
@@ -182,27 +227,7 @@ func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
 		}
 	}()
 
-	offset := this.bodyOffset
-
-	// 直接返回从Header中剩余的
-	if this.bodyBufLen > 0 && len(buf) >= this.bodyBufLen {
-		offset += int64(this.bodyBufLen)
-
-		copy(buf, this.bodyBuf)
-		isOk = true
-
-		goNext, err := callback(this.bodyBufLen)
-		if err != nil {
-			return err
-		}
-		if !goNext {
-			return nil
-		}
-
-		if this.bodySize <= int64(this.bodyBufLen) {
-			return nil
-		}
-	}
+	var offset = this.bodyOffset
 
 	// 开始读Body部分
 	_, err := this.fp.Seek(offset, io.SeekStart)
@@ -235,8 +260,23 @@ func (this *FileReader) ReadBody(buf []byte, callback ReaderFunc) error {
 	return nil
 }
 
+func (this *FileReader) Read(buf []byte) (n int, err error) {
+	if this.bodySize == 0 {
+		n = 0
+		err = io.EOF
+		return
+	}
+
+	n, err = this.fp.Read(buf)
+	if err != nil && err != io.EOF {
+		_ = this.discard()
+	}
+
+	return
+}
+
 func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callback ReaderFunc) error {
-	isOk := false
+	var isOk = false
 
 	defer func() {
 		if !isOk {
@@ -244,7 +284,7 @@ func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callba
 		}
 	}()
 
-	offset := start
+	var offset = start
 	if start < 0 {
 		offset = this.bodyOffset + this.bodySize + end
 		end = this.bodyOffset + this.bodySize - 1
@@ -267,7 +307,7 @@ func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callba
 	for {
 		n, err := this.fp.Read(buf)
 		if n > 0 {
-			n2 := int(end-offset) + 1
+			var n2 = int(end-offset) + 1
 			if n2 <= n {
 				_, e := callback(n2)
 				if e != nil {
@@ -304,7 +344,33 @@ func (this *FileReader) ReadBodyRange(buf []byte, start int64, end int64, callba
 	return nil
 }
 
+// ContainsRange 是否包含某些区间内容
+func (this *FileReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	return r, true
+}
+
+// FP 原始的文件句柄
+func (this *FileReader) FP() *os.File {
+	return this.fp
+}
+
 func (this *FileReader) Close() error {
+	if this.isClosed {
+		return nil
+	}
+	this.isClosed = true
+
+	if this.openFileCache != nil {
+		if this.openFile != nil {
+			this.openFileCache.Put(this.fp.Name(), this.openFile)
+		} else {
+			var cacheMeta = make([]byte, len(this.meta))
+			copy(cacheMeta, this.meta)
+			this.openFileCache.Put(this.fp.Name(), NewOpenFile(this.fp, cacheMeta, this.header, this.LastModified(), this.bodySize))
+		}
+		return nil
+	}
+
 	return this.fp.Close()
 }
 
@@ -319,5 +385,13 @@ func (this *FileReader) readToBuff(fp *os.File, buf []byte) (ok bool, err error)
 
 func (this *FileReader) discard() error {
 	_ = this.fp.Close()
+	this.isClosed = true
+
+	// close open file cache
+	if this.openFileCache != nil {
+		this.openFileCache.Close(this.fp.Name())
+	}
+
+	// remove file
 	return os.Remove(this.fp.Name())
 }

internal/caches/reader_file_test.go

@@ -8,21 +8,29 @@ import (
 )
 
 func TestFileReader(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, path := storage.keyPath("my-key")
+
+	_, path, _ := storage.keyPath("my-key")
 
 	fp, err := os.Open(path)
 	if err != nil {
+		if os.IsNotExist(err) {
+			t.Log("file '" + path + "' not exists")
+			return
+		}
 		t.Fatal(err)
 	}
 	defer func() {
@@ -49,16 +57,55 @@ func TestFileReader(t *testing.T) {
 		t.Log("body:", string(buf[:n]))
 		return true, nil
 	})
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestFileReader_ReadHeader(t *testing.T) {
+	var path = "/Users/WorkSpace/EdgeProject/EdgeCache/p43/12/6b/126bbed90fc80f2bdfb19558948b0d49.cache"
+	fp, err := os.Open(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			t.Log("'" + path + "' not exists")
+			return
+		}
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = fp.Close()
+	}()
+	var reader = NewFileReader(fp)
+	err = reader.Init()
+	if err != nil {
+		if os.IsNotExist(err) {
+			t.Log("file '" + path + "' not exists")
+			return
+		}
+
+		t.Fatal(err)
+	}
+	var buf = make([]byte, 16*1024)
+	err = reader.ReadHeader(buf, func(n int) (goNext bool, err error) {
+		t.Log("header:", string(buf[:n]))
+		return
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
 }
 
 func TestFileReader_Range(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -78,10 +125,14 @@ func TestFileReader_Range(t *testing.T) {
 	}
 	_ = writer.Close()**/
 
-	_, path := storage.keyPath("my-number")
+	_, path, _ := storage.keyPath("my-number")
 
 	fp, err := os.Open(path)
 	if err != nil {
+		if os.IsNotExist(err) {
+			t.Log("'" + path + "' not exists")
+			return
+		}
 		t.Fatal(err)
 	}
 	defer func() {

internal/caches/reader_memory.go

@@ -2,10 +2,14 @@ package caches
 
 import (
 	"errors"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
+	"io"
 )
 
 type MemoryReader struct {
 	item *MemoryItem
+
+	offset int
 }
 
 func NewMemoryReader(item *MemoryItem) *MemoryReader {
@@ -16,10 +20,22 @@ func (this *MemoryReader) Init() error {
 	return nil
 }
 
+func (this *MemoryReader) TypeName() string {
+	return "memory"
+}
+
+func (this *MemoryReader) ExpiresAt() int64 {
+	return this.item.ExpiresAt
+}
+
 func (this *MemoryReader) Status() int {
 	return this.item.Status
 }
 
+func (this *MemoryReader) LastModified() int64 {
+	return this.item.ModifiedAt
+}
+
 func (this *MemoryReader) HeaderSize() int64 {
 	return int64(len(this.item.HeaderValue))
 }
@@ -99,6 +115,33 @@ func (this *MemoryReader) ReadBody(buf []byte, callback ReaderFunc) error {
 	return nil
 }
 
+func (this *MemoryReader) Read(buf []byte) (n int, err error) {
+	bufLen := len(buf)
+	if bufLen == 0 {
+		return 0, errors.New("using empty buffer")
+	}
+
+	bodySize := len(this.item.BodyValue)
+	left := bodySize - this.offset
+	if bufLen <= left {
+		copy(buf, this.item.BodyValue[this.offset:this.offset+bufLen])
+		n = bufLen
+
+		this.offset += bufLen
+		if this.offset >= bodySize {
+			err = io.EOF
+			return
+		}
+
+		return
+	} else {
+		copy(buf, this.item.BodyValue[this.offset:])
+		n = left
+		err = io.EOF
+		return
+	}
+}
+
 func (this *MemoryReader) ReadBodyRange(buf []byte, start int64, end int64, callback ReaderFunc) error {
 	offset := start
 	bodySize := int64(len(this.item.BodyValue))
@@ -155,6 +198,11 @@ func (this *MemoryReader) ReadBodyRange(buf []byte, start int64, end int64, call
 	return nil
 }
 
+// ContainsRange 是否包含某些区间内容
+func (this *MemoryReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	return r, true
+}
+
 func (this *MemoryReader) Close() error {
 	return nil
 }

internal/caches/reader_memory_test.go

@@ -4,7 +4,7 @@ import "testing"
 
 func TestMemoryReader_Header(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: []byte("0123456789"),
 		BodyValue:   nil,
 		Status:      2000,
@@ -22,7 +22,7 @@ func TestMemoryReader_Header(t *testing.T) {
 
 func TestMemoryReader_Body(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: nil,
 		BodyValue:   []byte("0123456789"),
 		Status:      2000,
@@ -40,7 +40,7 @@ func TestMemoryReader_Body(t *testing.T) {
 
 func TestMemoryReader_Body_Range(t *testing.T) {
 	item := &MemoryItem{
-		ExpiredAt:   0,
+		ExpiresAt:   0,
 		HeaderValue: nil,
 		BodyValue:   []byte("0123456789"),
 		Status:      2000,

internal/caches/reader_partial_file.go

@@ -0,0 +1,146 @@
+package caches
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"os"
+)
+
+type PartialFileReader struct {
+	*FileReader
+
+	ranges    *PartialRanges
+	rangePath string
+}
+
+func NewPartialFileReader(fp *os.File) *PartialFileReader {
+	return &PartialFileReader{
+		FileReader: NewFileReader(fp),
+		rangePath:  PartialRangesFilePath(fp.Name()),
+	}
+}
+
+func (this *PartialFileReader) Init() error {
+	return this.InitAutoDiscard(true)
+}
+
+func (this *PartialFileReader) InitAutoDiscard(autoDiscard bool) error {
+	if this.openFile != nil {
+		this.meta = this.openFile.meta
+		this.header = this.openFile.header
+	}
+
+	isOk := false
+
+	if autoDiscard {
+		defer func() {
+			if !isOk {
+				_ = this.discard()
+			}
+		}()
+	}
+
+	// 读取Range
+	ranges, err := NewPartialRangesFromFile(this.rangePath)
+	if err != nil {
+		return fmt.Errorf("read ranges failed: %w", err)
+	}
+	this.ranges = ranges
+
+	var buf = this.meta
+	if len(buf) == 0 {
+		buf = make([]byte, SizeMeta)
+		ok, err := this.readToBuff(this.fp, buf)
+		if err != nil {
+			return err
+		}
+		if !ok {
+			return ErrNotFound
+		}
+		this.meta = buf
+	}
+
+	this.expiresAt = int64(binary.BigEndian.Uint32(buf[:SizeExpiresAt]))
+
+	status := types.Int(string(buf[SizeExpiresAt : SizeExpiresAt+SizeStatus]))
+	if status < 100 || status > 999 {
+		return errors.New("invalid status")
+	}
+	this.status = status
+
+	// URL
+	urlLength := binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus : SizeExpiresAt+SizeStatus+SizeURLLength])
+
+	// header
+	headerSize := int(binary.BigEndian.Uint32(buf[SizeExpiresAt+SizeStatus+SizeURLLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength]))
+	if headerSize == 0 {
+		return nil
+	}
+	this.headerSize = headerSize
+	this.headerOffset = int64(SizeMeta) + int64(urlLength)
+
+	// body
+	this.bodyOffset = this.headerOffset + int64(headerSize)
+	bodySize := int(binary.BigEndian.Uint64(buf[SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength : SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength+SizeBodyLength]))
+	if bodySize == 0 {
+		isOk = true
+		return nil
+	}
+	this.bodySize = int64(bodySize)
+
+	// read header
+	if this.openFileCache != nil && len(this.header) == 0 {
+		if headerSize > 0 && headerSize <= 512 {
+			this.header = make([]byte, headerSize)
+			_, err := this.fp.Seek(this.headerOffset, io.SeekStart)
+			if err != nil {
+				return err
+			}
+			_, err = this.readToBuff(this.fp, this.header)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	isOk = true
+
+	return nil
+}
+
+// ContainsRange 是否包含某些区间内容
+// 这里的 r 是已经经过格式化的
+func (this *PartialFileReader) ContainsRange(r rangeutils.Range) (r2 rangeutils.Range, ok bool) {
+	r2, ok = this.ranges.Nearest(r.Start(), r.End())
+	if ok && this.bodySize > 0 {
+		// 考虑可配置
+		const minSpan = 128 << 10
+
+		// 这里限制返回的最小缓存，防止因为返回的内容过小而导致请求过多
+		if r2.Length() < r.Length() && r2.Length() < minSpan {
+			ok = false
+		}
+	}
+	return
+}
+
+// MaxLength 获取区间最大长度
+func (this *PartialFileReader) MaxLength() int64 {
+	if this.bodySize > 0 {
+		return this.bodySize
+	}
+	return this.ranges.Max() + 1
+}
+
+func (this *PartialFileReader) Ranges() *PartialRanges {
+	return this.ranges
+}
+
+func (this *PartialFileReader) discard() error {
+	_ = os.Remove(this.rangePath)
+	return this.FileReader.discard()
+}

internal/caches/storage_file_test.go

@@ -5,10 +5,11 @@ import (
 	"errors"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
 	"github.com/iwind/TeaGo/Tea"
 	_ "github.com/iwind/TeaGo/bootstrap"
 	"github.com/iwind/TeaGo/logs"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"runtime"
 	"strconv"
@@ -18,7 +19,7 @@ import (
 )
 
 func TestFileStorage_Init(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
@@ -26,6 +27,8 @@ func TestFileStorage_Init(t *testing.T) {
 		},
 	})
 
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -40,17 +43,22 @@ func TestFileStorage_Init(t *testing.T) {
 
 	time.Sleep(2 * time.Second)
 	storage.purgeLoop()
-	t.Log(len(storage.list.m), "entries left")
+	t.Log(storage.list.(*FileList).Stat(func(hash string) bool {
+		return true
+	}))
 }
 
 func TestFileStorage_OpenWriter(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -62,7 +70,7 @@ func TestFileStorage_OpenWriter(t *testing.T) {
 
 	header := []byte("Header")
 	body := []byte("This is Body")
-	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200)
+	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200, -1, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -87,14 +95,55 @@ func TestFileStorage_OpenWriter(t *testing.T) {
 	t.Log("ok")
 }
 
+func TestFileStorage_OpenWriter_Partial(t *testing.T) {
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
+		Id:   2,
+		IsOn: true,
+		Options: map[string]interface{}{
+			"dir": Tea.Root + "/caches",
+		},
+	})
+
+	defer storage.Stop()
+
+	err := storage.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	writer, err := storage.OpenWriter("my-key", time.Now().Unix()+86400, 200, -1, -1, -1, true)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = writer.WriteHeader([]byte("Content-Type:text/html; charset=utf-8"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.WriteAt(0, []byte("Hello, World"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(writer)
+}
+
 func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -104,20 +153,20 @@ func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
 		t.Log(time.Since(now).Seconds()*1000, "ms")
 	}()
 
-	writer, err := storage.OpenWriter("my-http-response", time.Now().Unix()+86400, 200)
+	writer, err := storage.OpenWriter("my-http-response", time.Now().Unix()+86400, 200, -1, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
 	t.Log(writer)
 
 	resp := &http.Response{
-		StatusCode: 200,
+		StatusCode: http.StatusOK,
 		Header: http.Header{
 			"Content-Type":  []string{"text/html; charset=utf-8"},
 			"Last-Modified": []string{"Wed, 06 Jan 2021 10:03:29 GMT"},
 			"Server":        []string{"CDN-Server"},
 		},
-		Body: ioutil.NopCloser(bytes.NewBuffer([]byte("THIS IS HTTP BODY"))),
+		Body: io.NopCloser(bytes.NewBuffer([]byte("THIS IS HTTP BODY"))),
 	}
 
 	for k, v := range resp.Header {
@@ -153,13 +202,16 @@ func TestFileStorage_OpenWriter_HTTP(t *testing.T) {
 }
 
 func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -177,10 +229,11 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 
-			writer, err := storage.OpenWriter("abc"+strconv.Itoa(i), time.Now().Unix()+3600, 200)
+			writer, err := storage.OpenWriter("abc"+strconv.Itoa(i), time.Now().Unix()+3600, 200, -1, -1, -1, false)
 			if err != nil {
 				if err != ErrFileIsWriting {
-					t.Fatal(err)
+					t.Error(err)
+					return
 				}
 				return
 			}
@@ -188,7 +241,8 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 
 			_, err = writer.Write([]byte("Hello,World"))
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 
 			// 故意造成慢速写入
@@ -196,7 +250,8 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 
 			err = writer.Close()
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 		}(i)
 	}
@@ -205,13 +260,16 @@ func TestFileStorage_Concurrent_Open_DifferentFile(t *testing.T) {
 }
 
 func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -229,10 +287,11 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 
-			writer, err := storage.OpenWriter("abc"+strconv.Itoa(0), time.Now().Unix()+3600, 200)
+			writer, err := storage.OpenWriter("abc"+strconv.Itoa(0), time.Now().Unix()+3600, 200, -1, -1, -1, false)
 			if err != nil {
 				if err != ErrFileIsWriting {
-					t.Fatal(err)
+					t.Error(err)
+					return
 				}
 				return
 			}
@@ -241,7 +300,8 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 			t.Log("writing")
 			_, err = writer.Write([]byte("Hello,World"))
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 
 			// 故意造成慢速写入
@@ -249,7 +309,8 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 
 			err = writer.Close()
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 		}(i)
 	}
@@ -258,19 +319,22 @@ func TestFileStorage_Concurrent_Open_SameFile(t *testing.T) {
 }
 
 func TestFileStorage_Read(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
 	now := time.Now()
-	reader, err := storage.OpenReader("my-key")
+	reader, err := storage.OpenReader("my-key", false, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -294,19 +358,22 @@ func TestFileStorage_Read(t *testing.T) {
 }
 
 func TestFileStorage_Read_HTTP_Response(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
 	now := time.Now()
-	reader, err := storage.OpenReader("my-http-response")
+	reader, err := storage.OpenReader("my-http-response", false, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -347,20 +414,23 @@ func TestFileStorage_Read_HTTP_Response(t *testing.T) {
 }
 
 func TestFileStorage_Read_NotFound(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
 	now := time.Now()
 	buf := make([]byte, 6)
-	reader, err := storage.OpenReader("my-key-10000")
+	reader, err := storage.OpenReader("my-key-10000", false, false)
 	if err != nil {
 		if err == ErrNotFound {
 			t.Log("cache not fund")
@@ -380,13 +450,16 @@ func TestFileStorage_Read_NotFound(t *testing.T) {
 }
 
 func TestFileStorage_Delete(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -399,13 +472,16 @@ func TestFileStorage_Delete(t *testing.T) {
 }
 
 func TestFileStorage_Stat(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -424,13 +500,16 @@ func TestFileStorage_Stat(t *testing.T) {
 }
 
 func TestFileStorage_CleanAll(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -441,25 +520,30 @@ func TestFileStorage_CleanAll(t *testing.T) {
 		t.Log(time.Since(before).Seconds()*1000, "ms")
 	}()
 
-	t.Log("before:", storage.list.m)
+	c, _ := storage.list.Count()
+	t.Log("before:", c)
 
 	err = storage.CleanAll()
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	t.Log("after:", storage.list.m)
+	c, _ = storage.list.Count()
+	t.Log("after:", c)
 	t.Log("ok")
 }
 
 func TestFileStorage_Stop(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -468,23 +552,53 @@ func TestFileStorage_Stop(t *testing.T) {
 }
 
 func TestFileStorage_DecodeFile(t *testing.T) {
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, path := storage.keyPath("my-key")
-	item, err := storage.decodeFile(path)
+	_, path, _ := storage.keyPath("my-key")
+	t.Log(path)
+}
+
+func TestFileStorage_RemoveCacheFile(t *testing.T) {
+	var storage = NewFileStorage(nil)
+
+	defer storage.Stop()
+
+	t.Log(storage.removeCacheFile("/Users/WorkSpace/EdgeProject/EdgeCache/p43/15/7e/157eba0dfc6dfb6fbbf20b1f9e584674.cache"))
+}
+
+func TestFileStorage_ScanGarbageCaches(t *testing.T) {
+	if !testutils.IsSingleTesting() {
+		return
+	}
+
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
+		Id:      43,
+		Options: map[string]any{"dir": "/Users/WorkSpace/EdgeProject/EdgeCache"},
+	})
+	err := storage.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = storage.ScanGarbageCaches(func(path string) error {
+		t.Log(path, PartialRangesFilePath(path))
+		return nil
+	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	logs.PrintAsJSON(item, t)
 }
 
 func BenchmarkFileStorage_Read(b *testing.B) {
@@ -492,19 +606,22 @@ func BenchmarkFileStorage_Read(b *testing.B) {
 
 	_ = utils.SetRLimit(1024 * 1024)
 
-	storage := NewFileStorage(&serverconfigs.HTTPCachePolicy{
+	var storage = NewFileStorage(&serverconfigs.HTTPCachePolicy{
 		Id:   1,
 		IsOn: true,
 		Options: map[string]interface{}{
 			"dir": Tea.Root + "/caches",
 		},
 	})
+
+	defer storage.Stop()
+
 	err := storage.Init()
 	if err != nil {
 		b.Fatal(err)
 	}
 	for i := 0; i < b.N; i++ {
-		reader, err := storage.OpenReader("my-key")
+		reader, err := storage.OpenReader("my-key", false, false)
 		if err != nil {
 			b.Fatal(err)
 		}
@@ -515,3 +632,16 @@ func BenchmarkFileStorage_Read(b *testing.B) {
 		_ = reader.Close()
 	}
 }
+
+func BenchmarkFileStorage_KeyPath(b *testing.B) {
+	runtime.GOMAXPROCS(1)
+
+	var storage = &FileStorage{
+		options: &serverconfigs.HTTPFileCacheStorage{},
+		policy:  &serverconfigs.HTTPCachePolicy{Id: 1},
+	}
+
+	for i := 0; i < b.N; i++ {
+		_, _, _ = storage.keyPath(strconv.Itoa(i))
+	}
+}

internal/caches/storage_interface.go

@@ -4,35 +4,58 @@ import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 )
 
-// 缓存存储接口
+// StorageInterface 缓存存储接口
 type StorageInterface interface {
-	// 初始化
+	// Init 初始化
 	Init() error
 
-	// 读取缓存
-	OpenReader(key string) (Reader, error)
+	// OpenReader 读取缓存
+	OpenReader(key string, useStale bool, isPartial bool) (reader Reader, err error)
 
-	// 打开缓存写入器等待写入
-	OpenWriter(key string, expiredAt int64, status int) (Writer, error)
+	// OpenWriter 打开缓存写入器等待写入
+	// size 和 maxSize 可能为-1
+	OpenWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64, maxSize int64, isPartial bool) (Writer, error)
 
-	// 删除某个键值对应的缓存
+	// OpenFlushWriter 打开从其他媒介直接刷入的写入器
+	OpenFlushWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64) (Writer, error)
+
+	// Delete 删除某个键值对应的缓存
 	Delete(key string) error
 
-	// 统计缓存
+	// Stat 统计缓存
 	Stat() (*Stat, error)
 
-	// 清除所有缓存
+	// TotalDiskSize 消耗的磁盘尺寸
+	TotalDiskSize() int64
+
+	// TotalMemorySize 内存尺寸
+	TotalMemorySize() int64
+
+	// CleanAll 清除所有缓存
 	CleanAll() error
 
-	// 批量删除缓存
+	// Purge 批量删除缓存
+	// urlType 值为file|dir
 	Purge(keys []string, urlType string) error
 
-	// 停止缓存策略
+	// Stop 停止缓存策略
 	Stop()
 
-	// 获取当前存储的Policy
+	// Policy 获取当前存储的Policy
 	Policy() *serverconfigs.HTTPCachePolicy
 
-	// 将缓存添加到列表
+	// UpdatePolicy 修改策略
+	UpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy)
+
+	// CanUpdatePolicy 检查策略是否可以更新
+	CanUpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) bool
+
+	// AddToList 将缓存添加到列表
 	AddToList(item *Item)
+
+	// IgnoreKey 忽略某个Key，即不缓存某个Key
+	IgnoreKey(key string, maxSize int64)
+
+	// CanSendfile 是否支持Sendfile
+	CanSendfile() bool
 }

internal/caches/storage_memory.go

@@ -1,155 +1,311 @@
 package caches
 
 import (
-	"fmt"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
-	"github.com/TeaOSLab/EdgeNode/internal/errors"
+	"github.com/TeaOSLab/EdgeNode/internal/goman"
+	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeNode/internal/trackers"
 	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
+	setutils "github.com/TeaOSLab/EdgeNode/internal/utils/sets"
+	"github.com/TeaOSLab/EdgeNode/internal/zero"
 	"github.com/cespare/xxhash"
+	"github.com/iwind/TeaGo/types"
+	"math"
+	"runtime"
 	"strconv"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
 )
 
 type MemoryItem struct {
-	ExpiredAt   int64
+	ExpiresAt   int64
 	HeaderValue []byte
 	BodyValue   []byte
 	Status      int
 	IsDone      bool
+	ModifiedAt  int64
+
+	IsPrepared  bool
+	WriteOffset int64
+
+	isReferring bool // if it is referring by other objects
+}
+
+func (this *MemoryItem) IsExpired() bool {
+	return this.ExpiresAt < fasttime.Now().Unix()
 }
 
 type MemoryStorage struct {
-	policy        *serverconfigs.HTTPCachePolicy
-	list          *List
-	locker        *sync.RWMutex
-	valuesMap     map[uint64]*MemoryItem
-	ticker        *utils.Ticker
-	purgeDuration time.Duration
-	totalSize     int64
+	parentStorage StorageInterface
+
+	policy *serverconfigs.HTTPCachePolicy
+	list   ListInterface
+	locker *sync.RWMutex
+
+	valuesMap map[uint64]*MemoryItem // hash => item
+
+	dirtyChan      chan string // hash chan
+	dirtyQueueSize int
+
+	purgeTicker *utils.Ticker
+
+	usedSize      int64
+	writingKeyMap map[string]zero.Zero // key => bool
+
+	ignoreKeys *setutils.FixedSet
 }
 
-func NewMemoryStorage(policy *serverconfigs.HTTPCachePolicy) *MemoryStorage {
+func NewMemoryStorage(policy *serverconfigs.HTTPCachePolicy, parentStorage StorageInterface) *MemoryStorage {
+	var dirtyChan chan string
+	var queueSize = policy.MemoryAutoFlushQueueSize
+
+	if parentStorage != nil {
+		if queueSize <= 0 {
+			queueSize = utils.SystemMemoryGB() * 100_000
+		}
+
+		dirtyChan = make(chan string, queueSize)
+	}
 	return &MemoryStorage{
-		policy:    policy,
-		list:      NewList(),
-		locker:    &sync.RWMutex{},
-		valuesMap: map[uint64]*MemoryItem{},
+		parentStorage:  parentStorage,
+		policy:         policy,
+		list:           NewMemoryList(),
+		locker:         &sync.RWMutex{},
+		valuesMap:      map[uint64]*MemoryItem{},
+		dirtyChan:      dirtyChan,
+		dirtyQueueSize: queueSize,
+		writingKeyMap:  map[string]zero.Zero{},
+		ignoreKeys:     setutils.NewFixedSet(32768),
 	}
 }
 
-// 初始化
+// Init 初始化
 func (this *MemoryStorage) Init() error {
+	_ = this.list.Init()
+
 	this.list.OnAdd(func(item *Item) {
-		atomic.AddInt64(&this.totalSize, item.Size())
+		atomic.AddInt64(&this.usedSize, item.TotalSize())
 	})
 	this.list.OnRemove(func(item *Item) {
-		atomic.AddInt64(&this.totalSize, -item.Size())
+		atomic.AddInt64(&this.usedSize, -item.TotalSize())
 	})
 
-	if this.purgeDuration <= 0 {
-		this.purgeDuration = 30 * time.Second
-	}
+	this.initPurgeTicker()
 
-	// 启动定时清理任务
-	this.ticker = utils.NewTicker(this.purgeDuration)
-	go func() {
-		for this.ticker.Next() {
-			this.purgeLoop()
+	// 启动定时Flush memory to disk任务
+	if this.parentStorage != nil {
+		// TODO 应该根据磁盘性能决定线程数
+		// TODO 线程数应该可以在缓存策略和节点中设定
+		var threads = runtime.NumCPU()
+
+		for i := 0; i < threads; i++ {
+			goman.New(func() {
+				this.startFlush()
+			})
 		}
-	}()
+	}
 
 	return nil
 }
 
-// 读取缓存
-func (this *MemoryStorage) OpenReader(key string) (Reader, error) {
-	hash := this.hash(key)
+// OpenReader 读取缓存
+func (this *MemoryStorage) OpenReader(key string, useStale bool, isPartial bool) (Reader, error) {
+	var hash = this.hash(key)
 
-	this.locker.RLock()
-	defer this.locker.RUnlock()
-
-	item := this.valuesMap[hash]
-	if item == nil || !item.IsDone {
+	// check if exists in list
+	exists, _ := this.list.Exist(types.String(hash))
+	if !exists {
 		return nil, ErrNotFound
 	}
 
-	if item.ExpiredAt > utils.UnixTime() {
-		reader := NewMemoryReader(item)
+	// read from valuesMap
+	this.locker.RLock()
+	var item = this.valuesMap[hash]
+
+	if item != nil {
+		item.isReferring = true
+	}
+
+	if item == nil || !item.IsDone {
+		this.locker.RUnlock()
+		return nil, ErrNotFound
+	}
+
+	if useStale || (item.ExpiresAt > fasttime.Now().Unix()) {
+		var reader = NewMemoryReader(item)
 		err := reader.Init()
 		if err != nil {
+			this.locker.RUnlock()
 			return nil, err
 		}
+		this.locker.RUnlock()
+
 		return reader, nil
 	}
+	this.locker.RUnlock()
 
 	_ = this.Delete(key)
 
 	return nil, ErrNotFound
 }
 
-// 打开缓存写入器等待写入
-func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int) (Writer, error) {
-	// 检查是否超出最大值
-	if this.policy.MaxKeys > 0 && this.list.Count() > this.policy.MaxKeys {
-		return nil, errors.New("write memory cache failed: too many keys in cache storage")
+// OpenWriter 打开缓存写入器等待写入
+func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int, headerSize int, bodySize int64, maxSize int64, isPartial bool) (Writer, error) {
+	if maxSize > 0 && this.ignoreKeys.Has(types.String(maxSize)+"$"+key) {
+		return nil, ErrEntityTooLarge
 	}
-	if this.policy.CapacityBytes() > 0 && this.policy.CapacityBytes() <= this.totalSize {
-		return nil, errors.New("write memory cache failed: over memory size, real size: " + strconv.FormatInt(this.totalSize, 10) + " bytes")
+
+	// TODO 内存缓存暂时不支持分块内容存储
+	if isPartial {
+		return nil, ErrFileIsWriting
+	}
+	return this.openWriter(key, expiredAt, status, headerSize, bodySize, maxSize, true)
+}
+
+// OpenFlushWriter 打开从其他媒介直接刷入的写入器
+func (this *MemoryStorage) OpenFlushWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64) (Writer, error) {
+	return this.openWriter(key, expiresAt, status, headerSize, bodySize, -1, true)
+}
+
+func (this *MemoryStorage) openWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64, maxSize int64, isDirty bool) (Writer, error) {
+	// 待写入队列是否已满
+	if isDirty &&
+		this.parentStorage != nil &&
+		this.dirtyQueueSize > 0 &&
+		len(this.dirtyChan) >= this.dirtyQueueSize-int(fsutils.DiskMaxWrites) /** delta **/ { // 缓存时间过长
+		return nil, ErrWritingQueueFull
+	}
+
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	// 是否正在写入
+	var isWriting = false
+	_, ok := this.writingKeyMap[key]
+	if ok {
+		return nil, ErrFileIsWriting
+	}
+	this.writingKeyMap[key] = zero.New()
+	defer func() {
+		if !isWriting {
+			delete(this.writingKeyMap, key)
+		}
+	}()
+
+	// 检查是否过期
+	var hash = this.hash(key)
+	item, ok := this.valuesMap[hash]
+	if ok && !item.IsExpired() {
+		var hashString = types.String(hash)
+		exists, _ := this.list.Exist(hashString)
+		if !exists {
+			// remove from values map
+			delete(this.valuesMap, hash)
+			_ = this.list.Remove(hashString)
+			item = nil
+		} else {
+			return nil, ErrFileIsWriting
+		}
+	}
+
+	// 检查是否超出容量最大值
+	var capacityBytes = this.memoryCapacityBytes()
+	if bodySize < 0 {
+		bodySize = 0
+	}
+	if capacityBytes > 0 && capacityBytes <= atomic.LoadInt64(&this.usedSize)+bodySize {
+		return nil, NewCapacityError("write memory cache failed: over memory size: " + strconv.FormatInt(capacityBytes, 10) + ", current size: " + strconv.FormatInt(this.usedSize, 10) + " bytes")
 	}
 
 	// 先删除
-	err := this.Delete(key)
+	err := this.deleteWithoutLocker(key)
 	if err != nil {
 		return nil, err
 	}
 
-	return NewMemoryWriter(this.valuesMap, key, expiredAt, status, this.locker), nil
+	isWriting = true
+	return NewMemoryWriter(this, key, expiresAt, status, isDirty, bodySize, maxSize, func(valueItem *MemoryItem) {
+		this.locker.Lock()
+		delete(this.writingKeyMap, key)
+		this.locker.Unlock()
+	}), nil
 }
 
-// 删除某个键值对应的缓存
+// Delete 删除某个键值对应的缓存
 func (this *MemoryStorage) Delete(key string) error {
-	hash := this.hash(key)
+	var hash = this.hash(key)
 	this.locker.Lock()
 	delete(this.valuesMap, hash)
-	this.list.Remove(fmt.Sprintf("%d", hash))
+	_ = this.list.Remove(types.String(hash))
 	this.locker.Unlock()
 	return nil
 }
 
-// 统计缓存
+// Stat 统计缓存
 func (this *MemoryStorage) Stat() (*Stat, error) {
 	this.locker.RLock()
 	defer this.locker.RUnlock()
 
 	return this.list.Stat(func(hash string) bool {
 		return true
-	}), nil
+	})
 }
 
-// 清除所有缓存
+// CleanAll 清除所有缓存
 func (this *MemoryStorage) CleanAll() error {
 	this.locker.Lock()
 	this.valuesMap = map[uint64]*MemoryItem{}
-	this.list.Reset()
-	atomic.StoreInt64(&this.totalSize, 0)
+	_ = this.list.Reset()
+	atomic.StoreInt64(&this.usedSize, 0)
 	this.locker.Unlock()
 	return nil
 }
 
-// 批量删除缓存
+// Purge 批量删除缓存
 func (this *MemoryStorage) Purge(keys []string, urlType string) error {
 	// 目录
 	if urlType == "dir" {
-		resultKeys := []string{}
 		for _, key := range keys {
-			resultKeys = append(resultKeys, this.list.FindKeysWithPrefix(key)...)
+			// 检查是否有通配符 http(s)://*.example.com
+			var schemeIndex = strings.Index(key, "://")
+			if schemeIndex > 0 {
+				var keyRight = key[schemeIndex+3:]
+				if strings.HasPrefix(keyRight, "*.") {
+					err := this.list.CleanMatchPrefix(key)
+					if err != nil {
+						return err
+					}
+					continue
+				}
+			}
+
+			err := this.list.CleanPrefix(key)
+			if err != nil {
+				return err
+			}
 		}
-		keys = resultKeys
+		return nil
 	}
 
+	// URL
 	for _, key := range keys {
+		// 检查是否有通配符 http(s)://*.example.com
+		var schemeIndex = strings.Index(key, "://")
+		if schemeIndex > 0 {
+			var keyRight = key[schemeIndex+3:]
+			if strings.HasPrefix(keyRight, "*.") {
+				err := this.list.CleanMatchKey(key)
+				if err != nil {
+					return err
+				}
+				continue
+			}
+		}
+
 		err := this.Delete(key)
 		if err != nil {
 			return err
@@ -158,28 +314,101 @@ func (this *MemoryStorage) Purge(keys []string, urlType string) error {
 	return nil
 }
 
-// 停止缓存策略
+// Stop 停止缓存策略
 func (this *MemoryStorage) Stop() {
 	this.locker.Lock()
-	defer this.locker.Unlock()
 
 	this.valuesMap = map[uint64]*MemoryItem{}
-	this.list.Reset()
-	if this.ticker != nil {
-		this.ticker.Stop()
+	this.writingKeyMap = map[string]zero.Zero{}
+	_ = this.list.Reset()
+	if this.purgeTicker != nil {
+		this.purgeTicker.Stop()
 	}
+
+	if this.dirtyChan != nil {
+		close(this.dirtyChan)
+	}
+
+	_ = this.list.Close()
+
+	this.locker.Unlock()
+
+	this.ignoreKeys.Reset()
+
+	// 回收内存
+	runtime.GC()
+
+	remotelogs.Println("CACHE", "close memory storage '"+strconv.FormatInt(this.policy.Id, 10)+"'")
 }
 
-// 获取当前存储的Policy
+// Policy 获取当前存储的Policy
 func (this *MemoryStorage) Policy() *serverconfigs.HTTPCachePolicy {
 	return this.policy
 }
 
-// 将缓存添加到列表
+// UpdatePolicy 修改策略
+func (this *MemoryStorage) UpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) {
+	var oldPolicy = this.policy
+	this.policy = newPolicy
+
+	if oldPolicy.MemoryAutoPurgeInterval != newPolicy.MemoryAutoPurgeInterval {
+		this.initPurgeTicker()
+	}
+
+	// 如果是空的，则清空
+	if newPolicy.CapacityBytes() == 0 {
+		_ = this.CleanAll()
+	}
+
+	// reset ignored keys
+	this.ignoreKeys.Reset()
+}
+
+// CanUpdatePolicy 检查策略是否可以更新
+func (this *MemoryStorage) CanUpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) bool {
+	return true
+}
+
+// AddToList 将缓存添加到列表
 func (this *MemoryStorage) AddToList(item *Item) {
-	item.MetaSize = int64(len(item.Key)) + 32 /** 32是我们评估的数据结构的长度 **/
-	hash := fmt.Sprintf("%d", this.hash(item.Key))
-	this.list.Add(hash, item)
+	// skip added item
+	if item.MetaSize > 0 {
+		return
+	}
+
+	item.MetaSize = int64(len(item.Key)) + 128 /** 128是我们评估的数据结构的长度 **/
+	var hash = types.String(this.hash(item.Key))
+
+	if len(item.Host) == 0 {
+		item.Host = ParseHost(item.Key)
+	}
+
+	_ = this.list.Add(hash, item)
+}
+
+// TotalDiskSize 消耗的磁盘尺寸
+func (this *MemoryStorage) TotalDiskSize() int64 {
+	return 0
+}
+
+// TotalMemorySize 内存尺寸
+func (this *MemoryStorage) TotalMemorySize() int64 {
+	return atomic.LoadInt64(&this.usedSize)
+}
+
+// IgnoreKey 忽略某个Key，即不缓存某个Key
+func (this *MemoryStorage) IgnoreKey(key string, maxSize int64) {
+	this.ignoreKeys.Push(types.String(maxSize) + "$" + key)
+}
+
+// CanSendfile 是否支持Sendfile
+func (this *MemoryStorage) CanSendfile() bool {
+	return false
+}
+
+// HasFreeSpaceForHotItems 是否有足够的空间提供给热门内容
+func (this *MemoryStorage) HasFreeSpaceForHotItems() bool {
+	return atomic.LoadInt64(&this.usedSize) < this.memoryCapacityBytes()*3/4
 }
 
 // 计算Key Hash
@@ -189,12 +418,227 @@ func (this *MemoryStorage) hash(key string) uint64 {
 
 // 清理任务
 func (this *MemoryStorage) purgeLoop() {
-	this.list.Purge(2048, func(hash string) {
+	// 清理过期
+	var purgeCount = this.policy.MemoryAutoPurgeCount
+	if purgeCount <= 0 {
+		purgeCount = 2000
+	}
+	_, _ = this.list.Purge(purgeCount, func(hash string) error {
 		uintHash, err := strconv.ParseUint(hash, 10, 64)
 		if err == nil {
 			this.locker.Lock()
 			delete(this.valuesMap, uintHash)
 			this.locker.Unlock()
 		}
+		return nil
+	})
+
+	// LFU
+	// 计算是否应该开启LFU清理
+	var capacityBytes = this.policy.CapacityBytes()
+	var startLFU = false
+
+	var usedPercent = float32(this.TotalMemorySize()*100) / float32(capacityBytes)
+	var lfuFreePercent = this.policy.MemoryLFUFreePercent
+	if lfuFreePercent <= 0 {
+		lfuFreePercent = 5
+	}
+	if capacityBytes > 0 {
+		if lfuFreePercent < 100 {
+			if usedPercent >= 100-lfuFreePercent {
+				startLFU = true
+			}
+		}
+	}
+
+	if startLFU {
+		var total, _ = this.list.Count()
+		if total > 0 {
+			var count = types.Int(math.Ceil(float64(total) * float64(lfuFreePercent*2) / 100))
+			if count > 0 {
+				// 限制单次清理的条数，防止占用太多系统资源
+				if count > 2000 {
+					count = 2000
+				}
+
+				// 这里不提示LFU，因为此事件将会非常频繁
+
+				err := this.list.PurgeLFU(count, func(hash string) error {
+					uintHash, err := strconv.ParseUint(hash, 10, 64)
+					if err == nil {
+						this.locker.Lock()
+						delete(this.valuesMap, uintHash)
+						this.locker.Unlock()
+					}
+					return nil
+				})
+				if err != nil {
+					remotelogs.Warn("CACHE", "purge memory storage in LFU failed: "+err.Error())
+				}
+			}
+		}
+	}
+}
+
+// 开始Flush任务
+func (this *MemoryStorage) startFlush() {
+	var statCount = 0
+
+	for key := range this.dirtyChan {
+		statCount++
+
+		if statCount == 100 {
+			statCount = 0
+		}
+
+		this.flushItem(key)
+
+		if fsutils.IsInExtremelyHighLoad {
+			time.Sleep(1 * time.Second)
+		} else if fsutils.IsInHighLoad {
+			time.Sleep(100 * time.Millisecond)
+		}
+	}
+}
+
+// 单次Flush任务
+func (this *MemoryStorage) flushItem(key string) {
+	if this.parentStorage == nil {
+		return
+	}
+	var hash = this.hash(key)
+
+	this.locker.RLock()
+	item, ok := this.valuesMap[hash]
+	this.locker.RUnlock()
+
+	// 从内存中移除，并确保无论如何都会执行
+	defer func() {
+		_ = this.Delete(key)
+
+		// 重用内存，前提是确保内存不再被引用
+		if ok && item.IsDone && !item.isReferring && len(item.BodyValue) > 0 {
+			SharedFragmentMemoryPool.Put(item.BodyValue)
+		}
+	}()
+
+	if !ok {
+		return
+	}
+
+	if !item.IsDone {
+		remotelogs.Error("CACHE", "flush items failed: open writer failed: item has not been done")
+		return
+	}
+	if item.IsExpired() {
+		return
+	}
+
+	// 检查是否在列表中，防止未加入列表时就开始flush
+	isInList, err := this.list.Exist(types.String(hash))
+	if err != nil {
+		remotelogs.Error("CACHE", "flush items failed: "+err.Error())
+		return
+	}
+	if !isInList {
+		time.Sleep(1 * time.Second)
+	}
+
+	writer, err := this.parentStorage.OpenFlushWriter(key, item.ExpiresAt, item.Status, len(item.HeaderValue), int64(len(item.BodyValue)))
+	if err != nil {
+		if !CanIgnoreErr(err) {
+			remotelogs.Error("CACHE", "flush items failed: open writer failed: "+err.Error())
+		}
+		return
+	}
+
+	_, err = writer.WriteHeader(item.HeaderValue)
+	if err != nil {
+		_ = writer.Discard()
+		remotelogs.Error("CACHE", "flush items failed: write header failed: "+err.Error())
+		return
+	}
+
+	_, err = writer.Write(item.BodyValue)
+	if err != nil {
+		_ = writer.Discard()
+		remotelogs.Error("CACHE", "flush items failed: writer body failed: "+err.Error())
+		return
+	}
+
+	err = writer.Close()
+	if err != nil {
+		_ = writer.Discard()
+		remotelogs.Error("CACHE", "flush items failed: close writer failed: "+err.Error())
+		return
+	}
+
+	this.parentStorage.AddToList(&Item{
+		Type:       writer.ItemType(),
+		Key:        key,
+		Host:       ParseHost(key),
+		ExpiredAt:  item.ExpiresAt,
+		HeaderSize: writer.HeaderSize(),
+		BodySize:   writer.BodySize(),
+	})
+}
+
+func (this *MemoryStorage) memoryCapacityBytes() int64 {
+	var maxSystemBytes = SharedManager.MaxSystemMemoryBytesPerStorage()
+	if this.policy == nil {
+		return maxSystemBytes
+	}
+
+	if SharedManager.MaxMemoryCapacity != nil {
+		var capacityBytes = SharedManager.MaxMemoryCapacity.Bytes()
+		if capacityBytes > 0 {
+			if capacityBytes > maxSystemBytes {
+				return maxSystemBytes
+			}
+
+			return capacityBytes
+		}
+	}
+
+	var capacity = this.policy.Capacity // copy
+	if capacity != nil {
+		var capacityBytes = capacity.Bytes()
+		if capacityBytes > 0 {
+			if capacityBytes > maxSystemBytes {
+				return maxSystemBytes
+			}
+			return capacityBytes
+		}
+	}
+
+	return maxSystemBytes
+}
+
+func (this *MemoryStorage) deleteWithoutLocker(key string) error {
+	hash := this.hash(key)
+	delete(this.valuesMap, hash)
+	_ = this.list.Remove(types.String(hash))
+	return nil
+}
+
+func (this *MemoryStorage) initPurgeTicker() {
+	var autoPurgeInterval = this.policy.MemoryAutoPurgeInterval
+	if autoPurgeInterval <= 0 {
+		autoPurgeInterval = 5
+	}
+
+	// 启动定时清理任务
+
+	if this.purgeTicker != nil {
+		this.purgeTicker.Stop()
+	}
+
+	this.purgeTicker = utils.NewTicker(time.Duration(autoPurgeInterval) * time.Second)
+	goman.New(func() {
+		for this.purgeTicker.Next() {
+			var tr = trackers.Begin("MEMORY_CACHE_STORAGE_PURGE_LOOP")
+			this.purgeLoop()
+			tr.End()
+		}
 	})
 }

internal/caches/storage_memory_test.go

@@ -1,31 +1,43 @@
 package caches
 
 import (
+	"bytes"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 	"github.com/iwind/TeaGo/logs"
 	"github.com/iwind/TeaGo/rands"
+	"runtime"
+	"runtime/debug"
 	"strconv"
+	"sync"
 	"testing"
 	"time"
 )
 
 func TestMemoryStorage_OpenWriter(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 
-	writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+	writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, -1, false)
+	if err != nil {
+		t.Fatal(err)
+	}
 	if err != nil {
 		t.Fatal(err)
 	}
 	_, _ = writer.WriteHeader([]byte("Header"))
 	_, _ = writer.Write([]byte("Hello"))
 	_, _ = writer.Write([]byte(", World"))
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
 	t.Log(storage.valuesMap)
 
 	{
-		reader, err := storage.OpenReader("abc")
+		reader, err := storage.OpenReader("abc", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc")
+				return
 			} else {
 				t.Fatal(err)
 			}
@@ -49,7 +61,7 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 	}
 
 	{
-		_, err := storage.OpenReader("abc 2")
+		_, err := storage.OpenReader("abc 2", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc2")
@@ -59,13 +71,13 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 		}
 	}
 
-	writer, err = storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+	writer, err = storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, -1, false)
 	if err != nil {
 		t.Fatal(err)
 	}
 	_, _ = writer.Write([]byte("Hello123"))
 	{
-		reader, err := storage.OpenReader("abc")
+		reader, err := storage.OpenReader("abc", false, false)
 		if err != nil {
 			if err == ErrNotFound {
 				t.Log("not found: abc")
@@ -84,22 +96,43 @@ func TestMemoryStorage_OpenWriter(t *testing.T) {
 	}
 }
 
+func TestMemoryStorage_OpenReaderLock(t *testing.T) {
+	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
+	_ = storage.Init()
+
+	var h = storage.hash("test")
+	storage.valuesMap = map[uint64]*MemoryItem{
+		h: {
+			IsDone: true,
+		},
+	}
+	_, _ = storage.OpenReader("test", false, false)
+}
+
 func TestMemoryStorage_Delete(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	{
-		writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200)
+		writer, err := storage.OpenWriter("abc", time.Now().Unix()+60, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		t.Log(len(storage.valuesMap))
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", time.Now().Unix()+60, 200)
+		writer, err := storage.OpenWriter("abc1", time.Now().Unix()+60, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		t.Log(len(storage.valuesMap))
 	}
 	_ = storage.Delete("abc1")
@@ -107,14 +140,18 @@ func TestMemoryStorage_Delete(t *testing.T) {
 }
 
 func TestMemoryStorage_Stat(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	expiredAt := time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		t.Log(len(storage.valuesMap))
 		storage.AddToList(&Item{
 			Key:       "abc",
@@ -123,11 +160,15 @@ func TestMemoryStorage_Stat(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		t.Log(len(storage.valuesMap))
 		storage.AddToList(&Item{
 			Key:       "abc1",
@@ -144,14 +185,18 @@ func TestMemoryStorage_Stat(t *testing.T) {
 }
 
 func TestMemoryStorage_CleanAll(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
-	expiredAt := time.Now().Unix() + 60
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
+	var expiredAt = time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		storage.AddToList(&Item{
 			Key:       "abc",
 			BodySize:  5,
@@ -159,11 +204,15 @@ func TestMemoryStorage_CleanAll(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		storage.AddToList(&Item{
 			Key:       "abc1",
 			BodySize:  5,
@@ -174,18 +223,23 @@ func TestMemoryStorage_CleanAll(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	t.Log(storage.list.Count(), len(storage.valuesMap))
+	total, _ := storage.list.Count()
+	t.Log(total, len(storage.valuesMap))
 }
 
 func TestMemoryStorage_Purge(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
+	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
 	expiredAt := time.Now().Unix() + 60
 	{
-		writer, err := storage.OpenWriter("abc", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		storage.AddToList(&Item{
 			Key:       "abc",
 			BodySize:  5,
@@ -193,11 +247,15 @@ func TestMemoryStorage_Purge(t *testing.T) {
 		})
 	}
 	{
-		writer, err := storage.OpenWriter("abc1", expiredAt, 200)
+		writer, err := storage.OpenWriter("abc1", expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		storage.AddToList(&Item{
 			Key:       "abc1",
 			BodySize:  5,
@@ -208,12 +266,14 @@ func TestMemoryStorage_Purge(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	t.Log(storage.list.Count(), len(storage.valuesMap))
+	total, _ := storage.list.Count()
+	t.Log(total, len(storage.valuesMap))
 }
 
 func TestMemoryStorage_Expire(t *testing.T) {
-	storage := NewMemoryStorage(&serverconfigs.HTTPCachePolicy{})
-	storage.purgeDuration = 5 * time.Second
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{
+		MemoryAutoPurgeInterval: 5,
+	}, nil)
 	err := storage.Init()
 	if err != nil {
 		t.Fatal(err)
@@ -222,11 +282,15 @@ func TestMemoryStorage_Expire(t *testing.T) {
 	for i := 0; i < 1000; i++ {
 		expiredAt := time.Now().Unix() + int64(rands.Int(0, 60))
 		key := "abc" + strconv.Itoa(i)
-		writer, err := storage.OpenWriter(key, expiredAt, 200)
+		writer, err := storage.OpenWriter(key, expiredAt, 200, -1, -1, -1, false)
 		if err != nil {
 			t.Fatal(err)
 		}
 		_, _ = writer.Write([]byte("Hello"))
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
 		storage.AddToList(&Item{
 			Key:       key,
 			BodySize:  5,
@@ -235,3 +299,80 @@ func TestMemoryStorage_Expire(t *testing.T) {
 	}
 	time.Sleep(70 * time.Second)
 }
+
+func TestMemoryStorage_Locker(t *testing.T) {
+	var storage = NewMemoryStorage(&serverconfigs.HTTPCachePolicy{}, nil)
+	err := storage.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+	storage.locker.Lock()
+	err = storage.deleteWithoutLocker("a")
+	storage.locker.Unlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}
+
+func TestMemoryStorage_Stop(t *testing.T) {
+	var stat1 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat1)
+
+	var m = map[uint64]*MemoryItem{}
+	for i := 0; i < 1_000_000; i++ {
+		m[uint64(i)] = &MemoryItem{
+			HeaderValue: []byte("Hello, World"),
+			BodyValue:   bytes.Repeat([]byte("Hello"), 1024),
+		}
+	}
+
+	m = map[uint64]*MemoryItem{}
+
+	var before = time.Now()
+	//runtime.GC()
+	debug.FreeOSMemory()
+	/**go func() {
+		time.Sleep(10 * time.Second)
+		runtime.GC()
+	}()**/
+	t.Log(time.Since(before).Seconds()*1000, "ms")
+
+	var stat2 = &runtime.MemStats{}
+	runtime.ReadMemStats(stat2)
+
+	if stat2.HeapInuse > stat1.HeapInuse {
+		t.Log(stat2.HeapInuse, stat1.HeapInuse, (stat2.HeapInuse-stat1.HeapInuse)/1024/1024, "MB")
+	} else {
+		t.Log("0 MB")
+	}
+
+	t.Log(len(m))
+}
+
+func BenchmarkValuesMap(b *testing.B) {
+	var m = map[uint64]*MemoryItem{}
+	var count = 1_000_000
+	for i := 0; i < count; i++ {
+		m[uint64(i)] = &MemoryItem{
+			ExpiresAt: time.Now().Unix(),
+		}
+	}
+	b.Log(len(m))
+
+	var locker = sync.Mutex{}
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			locker.Lock()
+			_, ok := m[uint64(rands.Int(0, 1_000_000))]
+			_ = ok
+			locker.Unlock()
+
+			locker.Lock()
+			delete(m, uint64(rands.Int(2, 1000000)))
+			locker.Unlock()
+		}
+	})
+}

internal/caches/utils.go

@@ -0,0 +1,30 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/configutils"
+	"net"
+	"strings"
+)
+
+func ParseHost(key string) string {
+	var schemeIndex = strings.Index(key, "://")
+	if schemeIndex <= 0 {
+		return ""
+	}
+
+	var firstSlashIndex = strings.Index(key[schemeIndex+3:], "/")
+	if firstSlashIndex <= 0 {
+		return ""
+	}
+
+	var host = key[schemeIndex+3 : schemeIndex+3+firstSlashIndex]
+
+	hostPart, _, err := net.SplitHostPort(host)
+	if err == nil && len(hostPart) > 0 {
+		host = configutils.QuoteIP(hostPart)
+	}
+
+	return host
+}

internal/caches/utils_partial.go

@@ -0,0 +1,18 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import "strings"
+
+// PartialRangesFilePath 获取 ranges 文件路径
+func PartialRangesFilePath(path string) string {
+	// ranges路径
+	var dotIndex = strings.LastIndex(path, ".")
+	var rangePath string
+	if dotIndex < 0 {
+		rangePath = path + "@ranges.cache"
+	} else {
+		rangePath = path[:dotIndex] + "@ranges" + path[dotIndex:]
+	}
+	return rangePath
+}

internal/caches/utils_test.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package caches_test
+
+import (
+	"fmt"
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/cespare/xxhash"
+	"github.com/iwind/TeaGo/types"
+	"strconv"
+	"testing"
+)
+
+func TestParseHost(t *testing.T) {
+	for _, u := range []string{
+		"https://goedge.cn/hello/world",
+		"https://goedge.cn:8080/hello/world",
+		"https://goedge.cn/hello/world?v=1&t=123",
+		"https://[::1]:1234/hello/world?v=1&t=123",
+		"https://[::1]/hello/world?v=1&t=123",
+		"https://127.0.0.1/hello/world?v=1&t=123",
+		"https:/hello/world?v=1&t=123",
+		"123456",
+	} {
+		t.Log(u, "=>", caches.ParseHost(u))
+	}
+}
+
+func TestUintString(t *testing.T) {
+	t.Log(strconv.FormatUint(xxhash.Sum64String("https://goedge.cn/"), 10))
+	t.Log(strconv.FormatUint(123456789, 10))
+	t.Logf("%d", 1234567890123)
+}
+
+func BenchmarkUint_String(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		_ = strconv.FormatUint(1234567890123, 10)
+	}
+}
+
+func BenchmarkUint_String2(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		_ = types.String(1234567890123)
+	}
+}
+
+func BenchmarkUint_String3(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		_ = fmt.Sprintf("%d", 1234567890123)
+	}
+}

internal/caches/writer.go

@@ -1,31 +1,34 @@
 package caches
 
-// 缓存内容写入接口
+// Writer 缓存内容写入接口
 type Writer interface {
-	// 写入Header数据
+	// WriteHeader 写入Header数据
 	WriteHeader(data []byte) (n int, err error)
 
-	// 写入Body数据
+	// Write 写入Body数据
 	Write(data []byte) (n int, err error)
 
-	// 写入的Header数据大小
+	// WriteAt 在指定位置写入数据
+	WriteAt(offset int64, data []byte) error
+
+	// HeaderSize 写入的Header数据大小
 	HeaderSize() int64
 
-	// 写入的Body数据大小
+	// BodySize 写入的Body数据大小
 	BodySize() int64
 
-	// 关闭
+	// Close 关闭
 	Close() error
 
-	// 丢弃
+	// Discard 丢弃
 	Discard() error
 
-	// Key
+	// Key Key
 	Key() string
 
-	// 过期时间
+	// ExpiredAt 过期时间
 	ExpiredAt() int64
 
-	// 内容类型
+	// ItemType 内容类型
 	ItemType() ItemType
 }

internal/caches/writer_file.go

@@ -2,31 +2,50 @@ package caches
 
 import (
 	"encoding/binary"
+	"errors"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	"github.com/iwind/TeaGo/types"
 	"io"
 	"os"
 	"strings"
+	"sync"
 )
 
 type FileWriter struct {
-	rawWriter  *os.File
-	key        string
-	headerSize int64
-	bodySize   int64
-	expiredAt  int64
+	storage   StorageInterface
+	rawWriter *os.File
+	key       string
+
+	metaHeaderSize int
+	headerSize     int64
+
+	metaBodySize int64 // 写入前的内容长度
+	bodySize     int64
+
+	expiredAt int64
+	maxSize   int64
+	endFunc   func()
+	once      sync.Once
 }
 
-func NewFileWriter(rawWriter *os.File, key string, expiredAt int64) *FileWriter {
+func NewFileWriter(storage StorageInterface, rawWriter *os.File, key string, expiredAt int64, metaHeaderSize int, metaBodySize int64, maxSize int64, endFunc func()) *FileWriter {
 	return &FileWriter{
-		key:       key,
-		rawWriter: rawWriter,
-		expiredAt: expiredAt,
+		storage:        storage,
+		key:            key,
+		rawWriter:      rawWriter,
+		expiredAt:      expiredAt,
+		maxSize:        maxSize,
+		endFunc:        endFunc,
+		metaHeaderSize: metaHeaderSize,
+		metaBodySize:   metaBodySize,
 	}
 }
 
-// 写入数据
+// WriteHeader 写入数据
 func (this *FileWriter) WriteHeader(data []byte) (n int, err error) {
+	fsutils.WriteBegin()
 	n, err = this.rawWriter.Write(data)
+	fsutils.WriteEnd()
 	this.headerSize += int64(n)
 	if err != nil {
 		_ = this.Discard()
@@ -34,9 +53,12 @@ func (this *FileWriter) WriteHeader(data []byte) (n int, err error) {
 	return
 }
 
-// 写入Header长度数据
+// WriteHeaderLength 写入Header长度数据
 func (this *FileWriter) WriteHeaderLength(headerLength int) error {
-	bytes4 := make([]byte, 4)
+	if this.metaHeaderSize > 0 && this.metaHeaderSize == headerLength {
+		return nil
+	}
+	var bytes4 = make([]byte, 4)
 	binary.BigEndian.PutUint32(bytes4, uint32(headerLength))
 	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength, io.SeekStart)
 	if err != nil {
@@ -51,19 +73,47 @@ func (this *FileWriter) WriteHeaderLength(headerLength int) error {
 	return nil
 }
 
-// 写入数据
+// Write 写入数据
 func (this *FileWriter) Write(data []byte) (n int, err error) {
-	n, err = this.rawWriter.Write(data)
-	this.bodySize += int64(n)
-	if err != nil {
-		_ = this.Discard()
+	// split LARGE data
+	var l = len(data)
+	if l > (2 << 20) {
+		var offset = 0
+		const bufferSize = 256 << 10
+		for {
+			var end = offset + bufferSize
+			if end > l {
+				end = l
+			}
+			n1, err1 := this.write(data[offset:end])
+			n += n1
+			if err1 != nil {
+				return n, err1
+			}
+			if end >= l {
+				return n, nil
+			}
+			offset = end
+		}
 	}
-	return
+
+	// write NORMAL size data
+	return this.write(data)
 }
 
-// 写入Body长度数据
+// WriteAt 在指定位置写入数据
+func (this *FileWriter) WriteAt(offset int64, data []byte) error {
+	_ = data
+	_ = offset
+	return errors.New("not supported")
+}
+
+// WriteBodyLength 写入Body长度数据
 func (this *FileWriter) WriteBodyLength(bodyLength int64) error {
-	bytes8 := make([]byte, 8)
+	if this.metaBodySize >= 0 && bodyLength == this.metaBodySize {
+		return nil
+	}
+	var bytes8 = make([]byte, 8)
 	binary.BigEndian.PutUint64(bytes8, uint64(bodyLength))
 	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength, io.SeekStart)
 	if err != nil {
@@ -78,23 +128,38 @@ func (this *FileWriter) WriteBodyLength(bodyLength int64) error {
 	return nil
 }
 
-// 关闭
+// Close 关闭
 func (this *FileWriter) Close() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	var path = this.rawWriter.Name()
+
 	err := this.WriteHeaderLength(types.Int(this.headerSize))
 	if err != nil {
+		fsutils.WriteBegin()
+		_ = this.rawWriter.Close()
+		fsutils.WriteEnd()
+		_ = os.Remove(path)
 		return err
 	}
 	err = this.WriteBodyLength(this.bodySize)
 	if err != nil {
+		fsutils.WriteBegin()
+		_ = this.rawWriter.Close()
+		fsutils.WriteEnd()
+		_ = os.Remove(path)
 		return err
 	}
 
-	path := this.rawWriter.Name()
+	fsutils.WriteBegin()
 	err = this.rawWriter.Close()
+	fsutils.WriteEnd()
 	if err != nil {
 		_ = os.Remove(path)
-	} else {
-		err = os.Rename(path, strings.Replace(path, ".tmp", "", 1))
+	} else if strings.HasSuffix(path, FileTmpSuffix) {
+		err = os.Rename(path, strings.Replace(path, FileTmpSuffix, "", 1))
 		if err != nil {
 			_ = os.Remove(path)
 		}
@@ -103,9 +168,15 @@ func (this *FileWriter) Close() error {
 	return err
 }
 
-// 丢弃
+// Discard 丢弃
 func (this *FileWriter) Discard() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	fsutils.WriteBegin()
 	_ = this.rawWriter.Close()
+	fsutils.WriteEnd()
 
 	err := os.Remove(this.rawWriter.Name())
 	return err
@@ -127,7 +198,27 @@ func (this *FileWriter) Key() string {
 	return this.key
 }
 
-// 内容类型
+// ItemType 获取内容类型
 func (this *FileWriter) ItemType() ItemType {
 	return ItemTypeFile
 }
+
+func (this *FileWriter) write(data []byte) (n int, err error) {
+	fsutils.WriteBegin()
+	n, err = this.rawWriter.Write(data)
+	fsutils.WriteEnd()
+	this.bodySize += int64(n)
+
+	if this.maxSize > 0 && this.bodySize > this.maxSize {
+		err = ErrEntityTooLarge
+
+		if this.storage != nil {
+			this.storage.IgnoreKey(this.key, this.maxSize)
+		}
+	}
+
+	if err != nil {
+		_ = this.Discard()
+	}
+	return
+}

internal/caches/writer_gzip.go

@@ -1,74 +0,0 @@
-package caches
-
-import "compress/gzip"
-
-type gzipWriter struct {
-	rawWriter Writer
-	writer    *gzip.Writer
-	key       string
-	expiredAt int64
-}
-
-func NewGzipWriter(gw Writer, key string, expiredAt int64) Writer {
-	return &gzipWriter{
-		rawWriter: gw,
-		writer:    gzip.NewWriter(gw),
-		key:       key,
-		expiredAt: expiredAt,
-	}
-}
-
-func (this *gzipWriter) WriteHeader(data []byte) (n int, err error) {
-	return this.writer.Write(data)
-}
-
-// 写入Header长度数据
-func (this *gzipWriter) WriteHeaderLength(headerLength int) error {
-	return nil
-}
-
-// 写入Body长度数据
-func (this *gzipWriter) WriteBodyLength(bodyLength int64) error {
-	return nil
-}
-
-func (this *gzipWriter) Write(data []byte) (n int, err error) {
-	return this.writer.Write(data)
-}
-
-func (this *gzipWriter) Close() error {
-	err := this.writer.Close()
-	if err != nil {
-		return err
-	}
-	return this.rawWriter.Close()
-}
-
-func (this *gzipWriter) Discard() error {
-	err := this.writer.Close()
-	if err != nil {
-		return err
-	}
-	return this.rawWriter.Discard()
-}
-
-func (this *gzipWriter) Key() string {
-	return this.key
-}
-
-func (this *gzipWriter) ExpiredAt() int64 {
-	return this.expiredAt
-}
-
-func (this *gzipWriter) HeaderSize() int64 {
-	return this.rawWriter.HeaderSize()
-}
-
-func (this *gzipWriter) BodySize() int64 {
-	return this.rawWriter.BodySize()
-}
-
-// 内容类型
-func (this *gzipWriter) ItemType() ItemType {
-	return this.rawWriter.ItemType()
-}

internal/caches/writer_memory.go

@@ -1,96 +1,194 @@
 package caches
 
 import (
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
 	"github.com/cespare/xxhash"
 	"sync"
 )
 
 type MemoryWriter struct {
+	storage *MemoryStorage
+
 	key        string
 	expiredAt  int64
-	m          map[uint64]*MemoryItem
-	locker     *sync.RWMutex
 	headerSize int64
 	bodySize   int64
 	status     int
+	isDirty    bool
 
-	hash uint64
-	item *MemoryItem
+	expectedBodySize int64
+	maxSize          int64
+
+	hash    uint64
+	item    *MemoryItem
+	endFunc func(valueItem *MemoryItem)
+	once    sync.Once
 }
 
-func NewMemoryWriter(m map[uint64]*MemoryItem, key string, expiredAt int64, status int, locker *sync.RWMutex) *MemoryWriter {
-	w := &MemoryWriter{
-		m:         m,
-		key:       key,
-		expiredAt: expiredAt,
-		locker:    locker,
-		item: &MemoryItem{
-			ExpiredAt: expiredAt,
-			Status:    status,
-		},
-		status: status,
+func NewMemoryWriter(memoryStorage *MemoryStorage, key string, expiredAt int64, status int, isDirty bool, expectedBodySize int64, maxSize int64, endFunc func(valueItem *MemoryItem)) *MemoryWriter {
+	var valueItem = &MemoryItem{
+		ExpiresAt:  expiredAt,
+		ModifiedAt: fasttime.Now().Unix(),
+		Status:     status,
 	}
+	if expectedBodySize > 0 && expectedBodySize <= maxMemoryFragmentPoolItemSize {
+		bodyBytes, ok := SharedFragmentMemoryPool.Get(expectedBodySize) // try to reuse memory
+		if ok {
+			valueItem.BodyValue = bodyBytes
+			valueItem.IsPrepared = true
+		} else {
+			if expectedBodySize <= (16 << 20) {
+				var allocSize = (expectedBodySize/16384 + 1) * 16384
+				valueItem.BodyValue = make([]byte, allocSize)[:expectedBodySize]
+				valueItem.IsPrepared = true
+
+				SharedFragmentMemoryPool.IncreaseNew()
+			}
+		}
+	}
+	var w = &MemoryWriter{
+		storage:          memoryStorage,
+		key:              key,
+		expiredAt:        expiredAt,
+		item:             valueItem,
+		status:           status,
+		isDirty:          isDirty,
+		expectedBodySize: expectedBodySize,
+		maxSize:          maxSize,
+		endFunc:          endFunc,
+	}
+
 	w.hash = w.calculateHash(key)
 
 	return w
 }
 
-// 写入数据
+// WriteHeader 写入数据
 func (this *MemoryWriter) WriteHeader(data []byte) (n int, err error) {
 	this.headerSize += int64(len(data))
 	this.item.HeaderValue = append(this.item.HeaderValue, data...)
 	return len(data), nil
 }
 
-// 写入数据
+// Write 写入数据
 func (this *MemoryWriter) Write(data []byte) (n int, err error) {
-	this.bodySize += int64(len(data))
-	this.item.BodyValue = append(this.item.BodyValue, data...)
-	return len(data), nil
+	var l = len(data)
+	if l == 0 {
+		return
+	}
+
+	if this.item.IsPrepared {
+		if this.item.WriteOffset+int64(l) > this.expectedBodySize {
+			err = ErrWritingUnavailable
+			return
+		}
+		copy(this.item.BodyValue[this.item.WriteOffset:], data)
+		this.item.WriteOffset += int64(l)
+	} else {
+		this.item.BodyValue = append(this.item.BodyValue, data...)
+	}
+
+	this.bodySize += int64(l)
+
+	// 检查尺寸
+	if this.maxSize > 0 && this.bodySize > this.maxSize {
+		err = ErrEntityTooLarge
+		this.storage.IgnoreKey(this.key, this.maxSize)
+		return l, err
+	}
+
+	return l, nil
 }
 
-// 数据尺寸
+// WriteAt 在指定位置写入数据
+func (this *MemoryWriter) WriteAt(offset int64, b []byte) error {
+	_ = b
+	_ = offset
+	return errors.New("not supported")
+}
+
+// HeaderSize 数据尺寸
 func (this *MemoryWriter) HeaderSize() int64 {
 	return this.headerSize
 }
 
+// BodySize 主体内容尺寸
 func (this *MemoryWriter) BodySize() int64 {
 	return this.bodySize
 }
 
-// 关闭
+// Close 关闭
 func (this *MemoryWriter) Close() error {
+	// 需要在Locker之外
+	defer this.once.Do(func() {
+		this.endFunc(this.item)
+		this.item = nil // free memory
+	})
+
 	if this.item == nil {
 		return nil
 	}
 
-	this.locker.Lock()
+	this.storage.locker.Lock()
 	this.item.IsDone = true
-	this.m[this.hash] = this.item
-	this.locker.Unlock()
+	var err error
+	if this.isDirty {
+		if this.storage.parentStorage != nil {
+			this.storage.valuesMap[this.hash] = this.item
 
-	return nil
+			select {
+			case this.storage.dirtyChan <- this.key:
+			default:
+				// remove from values map
+				delete(this.storage.valuesMap, this.hash)
+
+				err = ErrWritingQueueFull
+			}
+		} else {
+			this.storage.valuesMap[this.hash] = this.item
+		}
+	} else {
+		this.storage.valuesMap[this.hash] = this.item
+	}
+
+	this.storage.locker.Unlock()
+
+	return err
 }
 
-// 丢弃
+// Discard 丢弃
 func (this *MemoryWriter) Discard() error {
-	this.locker.Lock()
-	delete(this.m, this.hash)
-	this.locker.Unlock()
+	// 需要在Locker之外
+	defer this.once.Do(func() {
+		this.endFunc(this.item)
+		this.item = nil // free memory
+	})
+
+	this.storage.locker.Lock()
+	delete(this.storage.valuesMap, this.hash)
+
+	if this.item != nil &&
+		!this.item.isReferring &&
+		cap(this.item.BodyValue) >= minMemoryFragmentPoolItemSize {
+		SharedFragmentMemoryPool.Put(this.item.BodyValue)
+	}
+
+	this.storage.locker.Unlock()
 	return nil
 }
 
-// Key
+// Key 获取Key
 func (this *MemoryWriter) Key() string {
 	return this.key
 }
 
-// 过期时间
+// ExpiredAt 过期时间
 func (this *MemoryWriter) ExpiredAt() int64 {
 	return this.expiredAt
 }
 
-// 内容类型
+// ItemType 内容类型
 func (this *MemoryWriter) ItemType() ItemType {
 	return ItemTypeMemory
 }

internal/caches/writer_partial_file.go

@@ -0,0 +1,265 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches
+
+import (
+	"encoding/binary"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"os"
+	"sync"
+)
+
+type PartialFileWriter struct {
+	rawWriter *os.File
+	key       string
+
+	metaHeaderSize int
+	headerSize     int64
+
+	metaBodySize int64
+	bodySize     int64
+
+	expiredAt int64
+	endFunc   func()
+	once      sync.Once
+
+	isNew      bool
+	isPartial  bool
+	bodyOffset int64
+
+	ranges    *PartialRanges
+	rangePath string
+}
+
+func NewPartialFileWriter(rawWriter *os.File, key string, expiredAt int64, metaHeaderSize int, metaBodySize int64, isNew bool, isPartial bool, bodyOffset int64, ranges *PartialRanges, endFunc func()) *PartialFileWriter {
+	return &PartialFileWriter{
+		key:            key,
+		rawWriter:      rawWriter,
+		expiredAt:      expiredAt,
+		endFunc:        endFunc,
+		isNew:          isNew,
+		isPartial:      isPartial,
+		bodyOffset:     bodyOffset,
+		ranges:         ranges,
+		rangePath:      PartialRangesFilePath(rawWriter.Name()),
+		metaHeaderSize: metaHeaderSize,
+		metaBodySize:   metaBodySize,
+	}
+}
+
+// WriteHeader 写入数据
+func (this *PartialFileWriter) WriteHeader(data []byte) (n int, err error) {
+	if !this.isNew {
+		return
+	}
+	fsutils.WriteBegin()
+	n, err = this.rawWriter.Write(data)
+	fsutils.WriteEnd()
+	this.headerSize += int64(n)
+	if err != nil {
+		_ = this.Discard()
+	}
+	return
+}
+
+func (this *PartialFileWriter) AppendHeader(data []byte) error {
+	fsutils.WriteBegin()
+	_, err := this.rawWriter.Write(data)
+	fsutils.WriteEnd()
+	if err != nil {
+		_ = this.Discard()
+	} else {
+		var c = len(data)
+		this.headerSize += int64(c)
+		err = this.WriteHeaderLength(int(this.headerSize))
+		if err != nil {
+			_ = this.Discard()
+		}
+	}
+	return err
+}
+
+// WriteHeaderLength 写入Header长度数据
+func (this *PartialFileWriter) WriteHeaderLength(headerLength int) error {
+	if this.metaHeaderSize > 0 && this.metaHeaderSize == headerLength {
+		return nil
+	}
+
+	var bytes4 = make([]byte, 4)
+	binary.BigEndian.PutUint32(bytes4, uint32(headerLength))
+	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength, io.SeekStart)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	_, err = this.rawWriter.Write(bytes4)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	return nil
+}
+
+// Write 写入数据
+func (this *PartialFileWriter) Write(data []byte) (n int, err error) {
+	fsutils.WriteBegin()
+	n, err = this.rawWriter.Write(data)
+	fsutils.WriteEnd()
+	this.bodySize += int64(n)
+	if err != nil {
+		_ = this.Discard()
+	}
+	return
+}
+
+// WriteAt 在指定位置写入数据
+func (this *PartialFileWriter) WriteAt(offset int64, data []byte) error {
+	var c = int64(len(data))
+	if c == 0 {
+		return nil
+	}
+	var end = offset + c - 1
+
+	// 是否已包含在内
+	if this.ranges.Contains(offset, end) {
+		return nil
+	}
+
+	if this.bodyOffset == 0 {
+		var keyLength = 0
+		if this.ranges.Version == 0 { // 以往的版本包含有Key
+			keyLength = len(this.key)
+		}
+		this.bodyOffset = SizeMeta + int64(keyLength) + this.headerSize
+	}
+
+	fsutils.WriteBegin()
+	_, err := this.rawWriter.WriteAt(data, this.bodyOffset+offset)
+	fsutils.WriteEnd()
+	if err != nil {
+		return err
+	}
+
+	this.ranges.Add(offset, end)
+
+	return nil
+}
+
+// SetBodyLength 设置内容总长度
+func (this *PartialFileWriter) SetBodyLength(bodyLength int64) {
+	this.bodySize = bodyLength
+}
+
+// WriteBodyLength 写入Body长度数据
+func (this *PartialFileWriter) WriteBodyLength(bodyLength int64) error {
+	if this.metaBodySize > 0 && this.metaBodySize == bodyLength {
+		return nil
+	}
+	var bytes8 = make([]byte, 8)
+	binary.BigEndian.PutUint64(bytes8, uint64(bodyLength))
+	_, err := this.rawWriter.Seek(SizeExpiresAt+SizeStatus+SizeURLLength+SizeHeaderLength, io.SeekStart)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	_, err = this.rawWriter.Write(bytes8)
+	if err != nil {
+		_ = this.Discard()
+		return err
+	}
+	return nil
+}
+
+// Close 关闭
+func (this *PartialFileWriter) Close() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	this.ranges.BodySize = this.bodySize
+	err := this.ranges.WriteToFile(this.rangePath)
+	if err != nil {
+		fsutils.WriteBegin()
+		_ = this.rawWriter.Close()
+		fsutils.WriteEnd()
+		this.remove()
+		return err
+	}
+
+	// 关闭当前writer
+	if this.isNew {
+		err = this.WriteHeaderLength(types.Int(this.headerSize))
+		if err != nil {
+			fsutils.WriteBegin()
+			_ = this.rawWriter.Close()
+			fsutils.WriteEnd()
+			this.remove()
+			return err
+		}
+		err = this.WriteBodyLength(this.bodySize)
+		if err != nil {
+			fsutils.WriteBegin()
+			_ = this.rawWriter.Close()
+			fsutils.WriteEnd()
+			this.remove()
+			return err
+		}
+	}
+
+	fsutils.WriteBegin()
+	err = this.rawWriter.Close()
+	fsutils.WriteEnd()
+	if err != nil {
+		this.remove()
+	}
+
+	return err
+}
+
+// Discard 丢弃
+func (this *PartialFileWriter) Discard() error {
+	defer this.once.Do(func() {
+		this.endFunc()
+	})
+
+	fsutils.WriteBegin()
+	_ = this.rawWriter.Close()
+	fsutils.WriteEnd()
+
+	_ = os.Remove(this.rangePath)
+
+	err := os.Remove(this.rawWriter.Name())
+	return err
+}
+
+func (this *PartialFileWriter) HeaderSize() int64 {
+	return this.headerSize
+}
+
+func (this *PartialFileWriter) BodySize() int64 {
+	return this.bodySize
+}
+
+func (this *PartialFileWriter) ExpiredAt() int64 {
+	return this.expiredAt
+}
+
+func (this *PartialFileWriter) Key() string {
+	return this.key
+}
+
+// ItemType 获取内容类型
+func (this *PartialFileWriter) ItemType() ItemType {
+	return ItemTypeFile
+}
+
+func (this *PartialFileWriter) IsNew() bool {
+	return this.isNew && len(this.ranges.Ranges) == 0
+}
+
+func (this *PartialFileWriter) remove() {
+	_ = os.Remove(this.rawWriter.Name())
+	_ = os.Remove(this.rangePath)
+}

internal/caches/writer_partial_file_test.go

@@ -0,0 +1,50 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package caches_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	"github.com/iwind/TeaGo/types"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestPartialFileWriter_Write(t *testing.T) {
+	var path = "/tmp/test_partial.cache"
+	_ = os.Remove(path)
+
+	var reader = func() {
+		data, err := os.ReadFile(path)
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Log("["+types.String(len(data))+"]", string(data))
+	}
+
+	fp, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0666)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var ranges = caches.NewPartialRanges(0)
+	var writer = caches.NewPartialFileWriter(fp, "test", time.Now().Unix()+86500, -1, -1, true, true, 0, ranges, func() {
+		t.Log("end")
+	})
+	_, err = writer.WriteHeader([]byte("header"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// 移动位置
+	err = writer.WriteAt(100, []byte("HELLO"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	reader()
+}

internal/compressions/reader.go

@@ -0,0 +1,15 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import "io"
+
+type Reader interface {
+	Read(p []byte) (n int, err error)
+	Reset(reader io.Reader) error
+	RawClose() error
+	Close() error
+
+	SetPool(pool *ReaderPool)
+	ResetFinish()
+}

internal/compressions/reader_base.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+type BaseReader struct {
+	pool *ReaderPool
+
+	isFinished bool
+}
+
+func (this *BaseReader) SetPool(pool *ReaderPool) {
+	this.pool = pool
+}
+
+func (this *BaseReader) Finish(obj Reader) error {
+	err := obj.RawClose()
+	if err == nil && this.pool != nil && !this.isFinished {
+		this.pool.Put(obj)
+	}
+	this.isFinished = true
+	return err
+}
+
+func (this *BaseReader) ResetFinish() {
+	this.isFinished = false
+}

internal/compressions/reader_brotli.go

@@ -0,0 +1,43 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/andybalholm/brotli"
+	"io"
+	"strings"
+)
+
+type BrotliReader struct {
+	BaseReader
+
+	reader *brotli.Reader
+}
+
+func NewBrotliReader(reader io.Reader) (Reader, error) {
+	return sharedBrotliReaderPool.Get(reader)
+}
+
+func newBrotliReader(reader io.Reader) (Reader, error) {
+	return &BrotliReader{reader: brotli.NewReader(reader)}, nil
+}
+
+func (this *BrotliReader) Read(p []byte) (n int, err error) {
+	n, err = this.reader.Read(p)
+	if err != nil && strings.Contains(err.Error(), "excessive") {
+		err = io.EOF
+	}
+	return
+}
+
+func (this *BrotliReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *BrotliReader) RawClose() error {
+	return nil
+}
+
+func (this *BrotliReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_brotli_test.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"io"
+	"testing"
+)
+
+func TestBrotliReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewBrotliReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_deflate.go

@@ -0,0 +1,39 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"compress/flate"
+	"io"
+)
+
+type DeflateReader struct {
+	BaseReader
+
+	reader io.ReadCloser
+}
+
+func NewDeflateReader(reader io.Reader) (Reader, error) {
+	return sharedDeflateReaderPool.Get(reader)
+}
+
+func newDeflateReader(reader io.Reader) (Reader, error) {
+	return &DeflateReader{reader: flate.NewReader(reader)}, nil
+}
+
+func (this *DeflateReader) Read(p []byte) (n int, err error) {
+	return this.reader.Read(p)
+}
+
+func (this *DeflateReader) Reset(reader io.Reader) error {
+	this.reader = flate.NewReader(reader)
+	return nil
+}
+
+func (this *DeflateReader) RawClose() error {
+	return this.reader.Close()
+}
+
+func (this *DeflateReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_deflate_test.go

@@ -0,0 +1,51 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"io"
+	"testing"
+)
+
+func TestDeflateReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewDeflateWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewDeflateReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_gzip.go

@@ -0,0 +1,44 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/klauspost/compress/gzip"
+	"io"
+)
+
+type GzipReader struct {
+	BaseReader
+
+	reader *gzip.Reader
+}
+
+func NewGzipReader(reader io.Reader) (Reader, error) {
+	return sharedGzipReaderPool.Get(reader)
+}
+
+func newGzipReader(reader io.Reader) (Reader, error) {
+	r, err := gzip.NewReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	return &GzipReader{
+		reader: r,
+	}, nil
+}
+
+func (this *GzipReader) Read(p []byte) (n int, err error) {
+	return this.reader.Read(p)
+}
+
+func (this *GzipReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *GzipReader) RawClose() error {
+	return this.reader.Close()
+}
+
+func (this *GzipReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_gzip_test.go

@@ -0,0 +1,106 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"strings"
+	"testing"
+)
+
+func TestGzipReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewGzipWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewGzipReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkGzipReader(b *testing.B) {
+	var randomData = func() []byte {
+		var b = strings.Builder{}
+		for i := 0; i < 1024; i++ {
+			b.WriteString(types.String(rands.Int64() % 10))
+		}
+		return []byte(b.String())
+	}
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewGzipWriter(buf, 5)
+	if err != nil {
+		b.Fatal(err)
+	}
+	_, err = writer.Write(randomData())
+	if err != nil {
+		b.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var newBytes = make([]byte, buf.Len())
+		copy(newBytes, buf.Bytes())
+		reader, err := compressions.NewGzipReader(bytes.NewReader(newBytes))
+		if err != nil {
+			b.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				_ = data[:n]
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				b.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}

internal/compressions/reader_pool.go

@@ -0,0 +1,56 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"io"
+)
+
+type ReaderPool struct {
+	c       chan Reader
+	newFunc func(reader io.Reader) (Reader, error)
+}
+
+func NewReaderPool(maxSize int, newFunc func(reader io.Reader) (Reader, error)) *ReaderPool {
+	if maxSize <= 0 {
+		maxSize = 1024
+	}
+
+	return &ReaderPool{
+		c:       make(chan Reader, maxSize),
+		newFunc: newFunc,
+	}
+}
+
+func (this *ReaderPool) Get(parentReader io.Reader) (Reader, error) {
+	select {
+	case reader := <-this.c:
+		err := reader.Reset(parentReader)
+		if err != nil {
+			// create new
+			reader, err = this.newFunc(parentReader)
+			if err != nil {
+				return nil, err
+			}
+			reader.SetPool(this)
+			return reader, nil
+		}
+		reader.ResetFinish()
+		return reader, nil
+	default:
+		// create new
+		reader, err := this.newFunc(parentReader)
+		if err != nil {
+			return nil, err
+		}
+		reader.SetPool(this)
+		return reader, nil
+	}
+}
+
+func (this *ReaderPool) Put(reader Reader) {
+	select {
+	case this.c <- reader:
+	default:
+	}
+}

internal/compressions/reader_pool_brotli.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedBrotliReaderPool *ReaderPool
+
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedBrotliReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newBrotliReader(reader)
+	})
+}

internal/compressions/reader_pool_deflate.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedDeflateReaderPool *ReaderPool
+
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedDeflateReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newDeflateReader(reader)
+	})
+}

internal/compressions/reader_pool_gzip.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedGzipReaderPool *ReaderPool
+
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedGzipReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newGzipReader(reader)
+	})
+}

internal/compressions/reader_pool_zstd.go

@@ -0,0 +1,25 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
+	"github.com/TeaOSLab/EdgeNode/internal/utils"
+	"io"
+)
+
+var sharedZSTDReaderPool *ReaderPool
+
+func init() {
+	if !teaconst.IsMain {
+		return
+	}
+
+	var maxSize = utils.SystemMemoryGB() * 256
+	if maxSize == 0 {
+		maxSize = 256
+	}
+	sharedZSTDReaderPool = NewReaderPool(maxSize, func(reader io.Reader) (Reader, error) {
+		return newZSTDReader(reader)
+	})
+}

internal/compressions/reader_zstd.go

@@ -0,0 +1,45 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/klauspost/compress/zstd"
+	"io"
+)
+
+type ZSTDReader struct {
+	BaseReader
+
+	reader *zstd.Decoder
+}
+
+func NewZSTDReader(reader io.Reader) (Reader, error) {
+	return sharedZSTDReaderPool.Get(reader)
+}
+
+func newZSTDReader(reader io.Reader) (Reader, error) {
+	r, err := zstd.NewReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	return &ZSTDReader{
+		reader: r,
+	}, nil
+}
+
+func (this *ZSTDReader) Read(p []byte) (n int, err error) {
+	return this.reader.Read(p)
+}
+
+func (this *ZSTDReader) Reset(reader io.Reader) error {
+	return this.reader.Reset(reader)
+}
+
+func (this *ZSTDReader) RawClose() error {
+	this.reader.Close()
+	return nil
+}
+
+func (this *ZSTDReader) Close() error {
+	return this.Finish(this)
+}

internal/compressions/reader_zstd_test.go

@@ -0,0 +1,106 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"io"
+	"strings"
+	"testing"
+)
+
+func TestZSTDReader(t *testing.T) {
+	for _, testString := range []string{"Hello", "World", "Ni", "Hao"} {
+		t.Log("===", testString, "===")
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewZSTDWriter(buf, 5)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = writer.Write([]byte(testString))
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = writer.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		reader, err := compressions.NewZSTDReader(buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				t.Log(string(data[:n]))
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkZSTDReader(b *testing.B) {
+	var randomData = func() []byte {
+		var b = strings.Builder{}
+		for i := 0; i < 1024; i++ {
+			b.WriteString(types.String(rands.Int64() % 10))
+		}
+		return []byte(b.String())
+	}
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewZSTDWriter(buf, 5)
+	if err != nil {
+		b.Fatal(err)
+	}
+	_, err = writer.Write(randomData())
+	if err != nil {
+		b.Fatal(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		var newBytes = make([]byte, buf.Len())
+		copy(newBytes, buf.Bytes())
+		reader, err := compressions.NewZSTDReader(bytes.NewReader(newBytes))
+		if err != nil {
+			b.Fatal(err)
+		}
+		var data = make([]byte, 4096)
+		for {
+			n, err := reader.Read(data)
+			if n > 0 {
+				_ = data[:n]
+			}
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				b.Fatal(err)
+			}
+		}
+		err = reader.Close()
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}

internal/compressions/utils.go

@@ -0,0 +1,60 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"errors"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"io"
+)
+
+type ContentEncoding = string
+
+const (
+	ContentEncodingBr      ContentEncoding = "br"
+	ContentEncodingGzip    ContentEncoding = "gzip"
+	ContentEncodingDeflate ContentEncoding = "deflate"
+	ContentEncodingZSTD    ContentEncoding = "zstd"
+)
+
+var ErrNotSupportedContentEncoding = errors.New("not supported content encoding")
+
+// AllEncodings 当前支持的所有编码
+func AllEncodings() []ContentEncoding {
+	return []ContentEncoding{
+		ContentEncodingBr,
+		ContentEncodingGzip,
+		ContentEncodingZSTD,
+		ContentEncodingDeflate,
+	}
+}
+
+// NewReader 获取Reader
+func NewReader(reader io.Reader, contentEncoding ContentEncoding) (Reader, error) {
+	switch contentEncoding {
+	case ContentEncodingBr:
+		return NewBrotliReader(reader)
+	case ContentEncodingGzip:
+		return NewGzipReader(reader)
+	case ContentEncodingDeflate:
+		return NewDeflateReader(reader)
+	case ContentEncodingZSTD:
+		return NewZSTDReader(reader)
+	}
+	return nil, ErrNotSupportedContentEncoding
+}
+
+// NewWriter 获取Writer
+func NewWriter(writer io.Writer, compressType serverconfigs.HTTPCompressionType, level int) (Writer, error) {
+	switch compressType {
+	case serverconfigs.HTTPCompressionTypeGzip:
+		return NewGzipWriter(writer, level)
+	case serverconfigs.HTTPCompressionTypeDeflate:
+		return NewDeflateWriter(writer, level)
+	case serverconfigs.HTTPCompressionTypeBrotli:
+		return NewBrotliWriter(writer, level)
+	case serverconfigs.HTTPCompressionTypeZSTD:
+		return NewZSTDWriter(writer, level)
+	}
+	return nil, errors.New("invalid compression type '" + compressType + "'")
+}

internal/compressions/writer.go

@@ -0,0 +1,17 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import "io"
+
+type Writer interface {
+	Write(p []byte) (int, error)
+	Flush() error
+	Reset(writer io.Writer)
+	RawClose() error
+	Close() error
+	Level() int
+
+	SetPool(pool *WriterPool)
+	ResetFinish()
+}

internal/compressions/writer_base.go

@@ -0,0 +1,26 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+type BaseWriter struct {
+	pool *WriterPool
+
+	isFinished bool
+}
+
+func (this *BaseWriter) SetPool(pool *WriterPool) {
+	this.pool = pool
+}
+
+func (this *BaseWriter) Finish(obj Writer) error {
+	err := obj.RawClose()
+	if err == nil && this.pool != nil && !this.isFinished {
+		this.pool.Put(obj)
+	}
+	this.isFinished = true
+	return err
+}
+
+func (this *BaseWriter) ResetFinish() {
+	this.isFinished = false
+}

internal/compressions/writer_brotli.go

@@ -0,0 +1,58 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"github.com/andybalholm/brotli"
+	"io"
+)
+
+type BrotliWriter struct {
+	BaseWriter
+
+	writer *brotli.Writer
+	level  int
+}
+
+func NewBrotliWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedBrotliWriterPool.Get(writer, level)
+}
+
+func newBrotliWriter(writer io.Writer, level int) (*BrotliWriter, error) {
+	if level <= 0 {
+		level = brotli.BestSpeed
+	} else if level > brotli.BestCompression {
+		level = brotli.BestCompression
+	}
+	return &BrotliWriter{
+		writer: brotli.NewWriterOptions(writer, brotli.WriterOptions{
+			Quality: level,
+			LGWin:   13, // TODO 在全局设置里可以设置此值
+		}),
+		level: level,
+	}, nil
+}
+
+func (this *BrotliWriter) Write(p []byte) (int, error) {
+	return this.writer.Write(p)
+}
+
+func (this *BrotliWriter) Flush() error {
+	return this.writer.Flush()
+}
+
+func (this *BrotliWriter) Reset(newWriter io.Writer) {
+	this.writer.Reset(newWriter)
+}
+
+func (this *BrotliWriter) RawClose() error {
+	return this.writer.Close()
+}
+
+func (this *BrotliWriter) Close() error {
+	return this.Finish(this)
+}
+
+func (this *BrotliWriter) Level() int {
+	return this.level
+}

internal/compressions/writer_brotli_test.go

@@ -0,0 +1,152 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions_test
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeNode/internal/compressions"
+	stringutil "github.com/iwind/TeaGo/utils/string"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestBrotliWriter_LargeFile(t *testing.T) {
+	var data = []byte{}
+	for i := 0; i < 1024*1024; i++ {
+		data = append(data, stringutil.Rand(32)...)
+	}
+	t.Log(len(data)/1024/1024, "M")
+
+	var before = time.Now()
+	defer func() {
+		t.Log(time.Since(before).Seconds()*1000, "ms")
+	}()
+
+	var buf = &bytes.Buffer{}
+	writer, err := compressions.NewBrotliWriter(buf, 5)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var offset = 0
+	var size = 4096
+	for offset < len(data) {
+		_, err = writer.Write(data[offset : offset+size])
+		if err != nil {
+			t.Fatal(err)
+		}
+		offset += size
+	}
+
+	err = writer.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func BenchmarkBrotliWriter_Write(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkBrotliWriter_Write_Parallel(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 1024))
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			var buf = &bytes.Buffer{}
+			writer, err := compressions.NewBrotliWriter(buf, 5)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			for j := 0; j < 100; j++ {
+				_, err = writer.Write(data)
+				if err != nil {
+					b.Fatal(err)
+				}
+
+				/**err = writer.Flush()
+				if err != nil {
+					b.Fatal(err)
+				}**/
+			}
+
+			_ = writer.Close()
+		}
+	})
+}
+
+func BenchmarkBrotliWriter_Write_Small(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 16))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}
+
+func BenchmarkBrotliWriter_Write_Large(b *testing.B) {
+	var data = []byte(strings.Repeat("A", 4096))
+
+	for i := 0; i < b.N; i++ {
+		var buf = &bytes.Buffer{}
+		writer, err := compressions.NewBrotliWriter(buf, 5)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		for j := 0; j < 100; j++ {
+			_, err = writer.Write(data)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			/**err = writer.Flush()
+			if err != nil {
+				b.Fatal(err)
+			}**/
+		}
+
+		_ = writer.Close()
+	}
+}

internal/compressions/writer_deflate.go

@@ -0,0 +1,61 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"compress/flate"
+	"io"
+)
+
+type DeflateWriter struct {
+	BaseWriter
+
+	writer *flate.Writer
+	level  int
+}
+
+func NewDeflateWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedDeflateWriterPool.Get(writer, level)
+}
+
+func newDeflateWriter(writer io.Writer, level int) (Writer, error) {
+	if level <= 0 {
+		level = flate.BestSpeed
+	} else if level > flate.BestCompression {
+		level = flate.BestCompression
+	}
+
+	flateWriter, err := flate.NewWriter(writer, level)
+	if err != nil {
+		return nil, err
+	}
+
+	return &DeflateWriter{
+		writer: flateWriter,
+		level:  level,
+	}, nil
+}
+
+func (this *DeflateWriter) Write(p []byte) (int, error) {
+	return this.writer.Write(p)
+}
+
+func (this *DeflateWriter) Flush() error {
+	return this.writer.Flush()
+}
+
+func (this *DeflateWriter) Reset(writer io.Writer) {
+	this.writer.Reset(writer)
+}
+
+func (this *DeflateWriter) RawClose() error {
+	return this.writer.Close()
+}
+
+func (this *DeflateWriter) Close() error {
+	return this.Finish(this)
+}
+
+func (this *DeflateWriter) Level() int {
+	return this.level
+}