写入和删除缓存文件时增加线程数限制

internal/caches/list_file_db_sqlite.go

@@ -9,6 +9,7 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	memutils "github.com/TeaOSLab/EdgeNode/internal/utils/mem"
 	"github.com/iwind/TeaGo/logs"
 	"github.com/iwind/TeaGo/types"
@@ -593,9 +594,9 @@ func (this *SQLiteFileListDB) shouldRecover() bool {
 
 // 删除数据库文件
 func (this *SQLiteFileListDB) deleteDB() {
-	_ = os.Remove(this.dbPath)
-	_ = os.Remove(this.dbPath + "-shm")
-	_ = os.Remove(this.dbPath + "-wal")
+	_ = fsutils.Remove(this.dbPath)
+	_ = fsutils.Remove(this.dbPath + "-shm")
+	_ = fsutils.Remove(this.dbPath + "-wal")
 }
 
 // 加载Hash列表

internal/caches/list_file_sqlite.go

@@ -11,6 +11,7 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/utils/dbs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/fnv"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	"github.com/TeaOSLab/EdgeNode/internal/zero"
 	"github.com/iwind/TeaGo/types"
 	"os"
@@ -486,7 +487,7 @@ func (this *SQLiteFileList) UpgradeV3(oldDir string, brokenOnError bool) error {
 	remotelogs.Println("CACHE", "upgrading local database from '"+oldDir+"' ...")
 
 	defer func() {
-		_ = os.Remove(indexDBPath)
+		_ = fsutils.Remove(indexDBPath)
 		remotelogs.Println("CACHE", "upgrading local database finished")
 	}()
 

internal/caches/partial_ranges_queue.go

@@ -7,8 +7,8 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/goman"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/fnv"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	memutils "github.com/TeaOSLab/EdgeNode/internal/utils/mem"
-	"os"
 	"sync"
 )
 
@@ -91,7 +91,7 @@ func (this *PartialRangesQueue) Get(filename string) ([]byte, error) {
 		return data, nil
 	}
 
-	return os.ReadFile(filename)
+	return fsutils.ReadFile(filename)
 }
 
 // Delete ranges filename
@@ -119,7 +119,7 @@ func (this *PartialRangesQueue) Dump() {
 			continue
 		}
 
-		err := os.WriteFile(filename, data, 0666)
+		err := fsutils.WriteFile(filename, data, 0666)
 		if err != nil {
 			remotelogs.Println("PARTIAL_RANGES_QUEUE", "write file '"+filename+"' failed: "+err.Error())
 		}

internal/caches/reader_file.go

@@ -406,5 +406,5 @@ func (this *FileReader) discard() error {
 	}
 
 	// remove file
-	return os.Remove(this.fp.Name())
+	return fsutils.Remove(this.fp.Name())
 }

internal/caches/reader_partial_file.go

@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	rangeutils "github.com/TeaOSLab/EdgeNode/internal/utils/ranges"
 	"github.com/iwind/TeaGo/types"
 	"io"
@@ -146,7 +147,7 @@ func (this *PartialFileReader) IsCompleted() bool {
 
 func (this *PartialFileReader) discard() error {
 	SharedPartialRangesQueue.Delete(this.rangePath)
-	_ = os.Remove(this.rangePath)
+	_ = fsutils.Remove(this.rangePath)
 
 	return this.FileReader.discard()
 }

internal/caches/storage_file.go

@@ -525,11 +525,6 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, hea
 		return nil, fmt.Errorf("%w(001)", ErrFileIsWriting)
 	}
 
-	if !isFlushing && !fsutils.WriteReady() {
-		sharedWritingFileKeyLocker.Unlock()
-		return nil, ErrServerIsBusy
-	}
-
 	sharedWritingFileKeyMap[key] = zero.New()
 	sharedWritingFileKeyLocker.Unlock()
 	defer func() {
@@ -596,7 +591,11 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, hea
 		// 数据库中是否存在
 		existsCacheItem, _, _ := this.list.Exist(hash)
 		if existsCacheItem {
+			if !fsutils.ReaderLimiter.TryAck() {
+				return nil, ErrServerIsBusy
+			}
 			readerFp, err := os.OpenFile(tmpPath, os.O_RDONLY, 0444)
+			fsutils.ReaderLimiter.Release()
 			if err == nil {
 				var partialReader = NewPartialFileReader(readerFp)
 				err = partialReader.Init()
@@ -629,15 +628,19 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, hea
 	if isNewCreated && existsFile {
 		flags |= os.O_TRUNC
 	}
-	fsutils.WriteBegin()
+	if !fsutils.WriterLimiter.TryAck() {
+		return nil, ErrServerIsBusy
+	}
 	writer, err := os.OpenFile(tmpPath, flags, 0666)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		if os.IsNotExist(err) {
 			_ = os.MkdirAll(dir, 0777)
 
 			// open file again
+			fsutils.WriterLimiter.Ack()
 			writer, err = os.OpenFile(tmpPath, flags, 0666)
+			fsutils.WriterLimiter.Release()
 		}
 		if err != nil {
 			return nil, err
@@ -654,7 +657,7 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, hea
 		if !isOk {
 			_ = writer.Close()
 			if removeOnFailure {
-				_ = os.Remove(tmpPath)
+				_ = fsutils.Remove(tmpPath)
 			}
 		}
 	}()
@@ -697,9 +700,9 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, hea
 			metaBodySize = bodySize
 		}
 
-		fsutils.WriteBegin()
+		fsutils.WriterLimiter.Ack()
 		_, err = writer.Write(metaBytes)
-		fsutils.WriteEnd()
+		fsutils.WriterLimiter.Release()
 		if err != nil {
 			return nil, err
 		}
@@ -1152,9 +1155,7 @@ func (this *FileStorage) purgeLoop() {
 		for i := 0; i < times; i++ {
 			countFound, err := this.list.Purge(purgeCount, func(hash string) error {
 				path, _ := this.hashPath(hash)
-				fsutils.WriteBegin()
 				err := this.removeCacheFile(path)
-				fsutils.WriteEnd()
 				if err != nil && !os.IsNotExist(err) {
 					remotelogs.Error("CACHE", "purge '"+path+"' error: "+err.Error())
 				}
@@ -1211,9 +1212,7 @@ func (this *FileStorage) purgeLoop() {
 				var before = time.Now()
 				err := this.list.PurgeLFU(count, func(hash string) error {
 					path, _ := this.hashPath(hash)
-					fsutils.WriteBegin()
 					err := this.removeCacheFile(path)
-					fsutils.WriteEnd()
 					if err != nil && !os.IsNotExist(err) {
 						remotelogs.Error("CACHE", "purge '"+path+"' error: "+err.Error())
 					}
@@ -1481,7 +1480,7 @@ func (this *FileStorage) removeCacheFile(path string) error {
 		openFileCache.Close(path)
 	}
 
-	var err = os.Remove(path)
+	var err = fsutils.Remove(path)
 	if err == nil || os.IsNotExist(err) {
 		err = nil
 
@@ -1493,7 +1492,7 @@ func (this *FileStorage) removeCacheFile(path string) error {
 
 		_, statErr := os.Stat(partialPath)
 		if statErr == nil {
-			_ = os.Remove(partialPath)
+			_ = fsutils.Remove(partialPath)
 			SharedPartialRangesQueue.Delete(partialPath)
 		}
 	}

internal/caches/storage_memory.go

@@ -189,7 +189,7 @@ func (this *MemoryStorage) openWriter(key string, expiresAt int64, status int, h
 	if isDirty &&
 		this.parentStorage != nil &&
 		this.dirtyQueueSize > 0 &&
-		len(this.dirtyChan) >= this.dirtyQueueSize-int(fsutils.DiskMaxWrites) /** delta **/ { // 缓存时间过长
+		len(this.dirtyChan) >= this.dirtyQueueSize-64 /** delta **/ { // 缓存时间过长
 		return nil, ErrWritingQueueFull
 	}
 

internal/caches/writer_file.go

@@ -43,9 +43,9 @@ func NewFileWriter(storage StorageInterface, rawWriter *os.File, key string, exp
 
 // WriteHeader 写入数据
 func (this *FileWriter) WriteHeader(data []byte) (n int, err error) {
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	n, err = this.rawWriter.Write(data)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	this.headerSize += int64(n)
 	if err != nil {
 		_ = this.Discard()
@@ -139,36 +139,36 @@ func (this *FileWriter) Close() error {
 	// check content length
 	if this.metaBodySize > 0 && this.bodySize != this.metaBodySize {
 		_ = this.rawWriter.Close()
-		_ = os.Remove(path)
+		_ = fsutils.Remove(path)
 		return ErrUnexpectedContentLength
 	}
 
 	err := this.WriteHeaderLength(types.Int(this.headerSize))
 	if err != nil {
-		fsutils.WriteBegin()
+		fsutils.WriterLimiter.Ack()
 		_ = this.rawWriter.Close()
-		fsutils.WriteEnd()
-		_ = os.Remove(path)
+		fsutils.WriterLimiter.Release()
+		_ = fsutils.Remove(path)
 		return err
 	}
 	err = this.WriteBodyLength(this.bodySize)
 	if err != nil {
-		fsutils.WriteBegin()
+		fsutils.WriterLimiter.Ack()
 		_ = this.rawWriter.Close()
-		fsutils.WriteEnd()
-		_ = os.Remove(path)
+		fsutils.WriterLimiter.Release()
+		_ = fsutils.Remove(path)
 		return err
 	}
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	err = this.rawWriter.Close()
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	if err != nil {
-		_ = os.Remove(path)
+		_ = fsutils.Remove(path)
 	} else if strings.HasSuffix(path, FileTmpSuffix) {
-		err = os.Rename(path, strings.Replace(path, FileTmpSuffix, "", 1))
+		err = fsutils.Rename(path, strings.Replace(path, FileTmpSuffix, "", 1))
 		if err != nil {
-			_ = os.Remove(path)
+			_ = fsutils.Remove(path)
 		}
 	}
 
@@ -181,11 +181,11 @@ func (this *FileWriter) Discard() error {
 		this.endFunc()
 	})
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	_ = this.rawWriter.Close()
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 
-	err := os.Remove(this.rawWriter.Name())
+	err := fsutils.Remove(this.rawWriter.Name())
 	return err
 }
 
@@ -211,9 +211,9 @@ func (this *FileWriter) ItemType() ItemType {
 }
 
 func (this *FileWriter) write(data []byte) (n int, err error) {
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	n, err = this.rawWriter.Write(data)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	this.bodySize += int64(n)
 
 	if this.maxSize > 0 && this.bodySize > this.maxSize {

internal/caches/writer_partial_file.go

@@ -54,9 +54,9 @@ func (this *PartialFileWriter) WriteHeader(data []byte) (n int, err error) {
 	if !this.isNew {
 		return
 	}
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	n, err = this.rawWriter.Write(data)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	this.headerSize += int64(n)
 	if err != nil {
 		_ = this.Discard()
@@ -65,9 +65,9 @@ func (this *PartialFileWriter) WriteHeader(data []byte) (n int, err error) {
 }
 
 func (this *PartialFileWriter) AppendHeader(data []byte) error {
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	_, err := this.rawWriter.Write(data)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		_ = this.Discard()
 	} else {
@@ -94,7 +94,9 @@ func (this *PartialFileWriter) WriteHeaderLength(headerLength int) error {
 		_ = this.Discard()
 		return err
 	}
+	fsutils.WriterLimiter.Ack()
 	_, err = this.rawWriter.Write(bytes4)
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		_ = this.Discard()
 		return err
@@ -104,9 +106,9 @@ func (this *PartialFileWriter) WriteHeaderLength(headerLength int) error {
 
 // Write 写入数据
 func (this *PartialFileWriter) Write(data []byte) (n int, err error) {
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	n, err = this.rawWriter.Write(data)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	this.bodySize += int64(n)
 	if err != nil {
 		_ = this.Discard()
@@ -145,9 +147,9 @@ func (this *PartialFileWriter) WriteAt(offset int64, data []byte) error {
 			// extend min size to prepare for file tail
 			const extendSizePerStep = 8 << 20
 			if stat.Size()+extendSizePerStep <= this.bodyOffset+offset+int64(len(data)) {
-				fsutils.WriteBegin()
+				fsutils.WriterLimiter.Ack()
 				_ = this.rawWriter.Truncate(stat.Size() + extendSizePerStep)
-				fsutils.WriteEnd()
+				fsutils.WriterLimiter.Release()
 				return nil
 			}
 		}
@@ -161,9 +163,9 @@ func (this *PartialFileWriter) WriteAt(offset int64, data []byte) error {
 		this.bodyOffset = SizeMeta + int64(keyLength) + this.headerSize
 	}
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	_, err := this.rawWriter.WriteAt(data, this.bodyOffset+offset)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		return err
 	}
@@ -190,7 +192,9 @@ func (this *PartialFileWriter) WriteBodyLength(bodyLength int64) error {
 		_ = this.Discard()
 		return err
 	}
+	fsutils.WriterLimiter.Ack()
 	_, err = this.rawWriter.Write(bytes8)
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		_ = this.Discard()
 		return err
@@ -207,9 +211,9 @@ func (this *PartialFileWriter) Close() error {
 	this.ranges.BodySize = this.bodySize
 	err := this.ranges.WriteToFile(this.rangePath)
 	if err != nil {
-		fsutils.WriteBegin()
+		fsutils.WriterLimiter.Ack()
 		_ = this.rawWriter.Close()
-		fsutils.WriteEnd()
+		fsutils.WriterLimiter.Release()
 		this.remove()
 		return err
 	}
@@ -218,25 +222,25 @@ func (this *PartialFileWriter) Close() error {
 	if this.isNew {
 		err = this.WriteHeaderLength(types.Int(this.headerSize))
 		if err != nil {
-			fsutils.WriteBegin()
+			fsutils.WriterLimiter.Ack()
 			_ = this.rawWriter.Close()
-			fsutils.WriteEnd()
+			fsutils.WriterLimiter.Release()
 			this.remove()
 			return err
 		}
 		err = this.WriteBodyLength(this.bodySize)
 		if err != nil {
-			fsutils.WriteBegin()
+			fsutils.WriterLimiter.Ack()
 			_ = this.rawWriter.Close()
-			fsutils.WriteEnd()
+			fsutils.WriterLimiter.Release()
 			this.remove()
 			return err
 		}
 	}
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	err = this.rawWriter.Close()
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	if err != nil {
 		this.remove()
 	}
@@ -250,14 +254,16 @@ func (this *PartialFileWriter) Discard() error {
 		this.endFunc()
 	})
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	_ = this.rawWriter.Close()
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 
 	SharedPartialRangesQueue.Delete(this.rangePath)
-	_ = os.Remove(this.rangePath)
 
-	err := os.Remove(this.rawWriter.Name())
+	_ = fsutils.Remove(this.rangePath)
+
+	err := fsutils.Remove(this.rawWriter.Name())
+
 	return err
 }
 
@@ -287,8 +293,9 @@ func (this *PartialFileWriter) IsNew() bool {
 }
 
 func (this *PartialFileWriter) remove() {
-	_ = os.Remove(this.rawWriter.Name())
+	_ = fsutils.Remove(this.rawWriter.Name())
 
 	SharedPartialRangesQueue.Delete(this.rangePath)
-	_ = os.Remove(this.rangePath)
+
+	_ = fsutils.Remove(this.rangePath)
 }

internal/caches/writer_partial_file_test.go

@@ -4,6 +4,7 @@ package caches_test
 
 import (
 	"github.com/TeaOSLab/EdgeNode/internal/caches"
+	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
 	"github.com/iwind/TeaGo/types"
 	"os"
 	"testing"
@@ -15,7 +16,7 @@ func TestPartialFileWriter_Write(t *testing.T) {
 	_ = os.Remove(path)
 
 	var reader = func() {
-		data, err := os.ReadFile(path)
+		data, err := fsutils.ReadFile(path)
 		if err != nil {
 			t.Fatal(err)
 		}

internal/utils/dbs/stmt.go

@@ -39,9 +39,9 @@ func (this *Stmt) ExecContext(ctx context.Context, args ...any) (result sql.Resu
 	if this.enableStat {
 		defer SharedQueryStatManager.AddQuery(this.query).End()
 	}
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	result, err = this.rawStmt.ExecContext(ctx, args...)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	return
 }
 
@@ -57,9 +57,9 @@ func (this *Stmt) Exec(args ...any) (result sql.Result, err error) {
 		defer SharedQueryStatManager.AddQuery(this.query).End()
 	}
 
-	fsutils.WriteBegin()
+	fsutils.WriterLimiter.Ack()
 	result, err = this.rawStmt.Exec(args...)
-	fsutils.WriteEnd()
+	fsutils.WriterLimiter.Release()
 	return
 }
 

internal/utils/fs/disk.go

@@ -91,7 +91,6 @@ func CheckDiskIsFast() (speedMB float64, isFast bool, err error) {
 	} else {
 		DiskSpeed = SpeedExtremelySlow
 	}
-	calculateDiskMaxWrites()
 
 	DiskSpeedMB = speedMB
 

internal/utils/fs/os.go

@@ -0,0 +1,31 @@
+// Copyright 2024 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package fsutils
+
+import "os"
+
+func Remove(filename string) (err error) {
+	WriterLimiter.Ack()
+	err = os.Remove(filename)
+	WriterLimiter.Release()
+	return
+}
+
+func Rename(oldPath string, newPath string) (err error) {
+	WriterLimiter.Ack()
+	err = os.Rename(oldPath, newPath)
+	WriterLimiter.Release()
+	return
+}
+
+func ReadFile(filename string) (data []byte, err error) {
+	ReaderLimiter.Ack()
+	data, err = os.ReadFile(filename)
+	ReaderLimiter.Release()
+	return
+}
+
+func WriteFile(filename string, data []byte, perm os.FileMode) (err error) {
+	err = os.WriteFile(filename, data, perm)
+	return
+}

internal/utils/fs/status.go

@@ -9,7 +9,6 @@ import (
 	"github.com/iwind/TeaGo/Tea"
 	"github.com/shirou/gopsutil/v3/load"
 	"os"
-	"sync/atomic"
 	"time"
 )
 
@@ -38,7 +37,6 @@ const (
 
 var (
 	DiskSpeed   = SpeedLow
-	DiskMaxWrites int32 = 32
 	DiskSpeedMB float64
 )
 
@@ -65,7 +63,6 @@ func init() {
 			if err == nil && cache.SpeedMB > 0 {
 				DiskSpeedMB = cache.SpeedMB
 				DiskSpeed = cache.Speed
-				calculateDiskMaxWrites()
 			}
 		}
 
@@ -109,39 +106,6 @@ func DiskIsExtremelyFast() bool {
 	return DiskSpeed == SpeedExtremelyFast
 }
 
-var countWrites int32 = 0
-
-func WriteReady() bool {
-	if IsInExtremelyHighLoad {
-		return false
-	}
-
-	return atomic.LoadInt32(&countWrites) < DiskMaxWrites
-}
-
-func WriteBegin() {
-	atomic.AddInt32(&countWrites, 1)
-}
-
-func WriteEnd() {
-	atomic.AddInt32(&countWrites, -1)
-}
-
-func calculateDiskMaxWrites() {
-	switch DiskSpeed {
-	case SpeedExtremelyFast:
-		DiskMaxWrites = 32
-	case SpeedFast:
-		DiskMaxWrites = 16
-	case SpeedLow:
-		DiskMaxWrites = 8
-	case SpeedExtremelySlow:
-		DiskMaxWrites = 4
-	default:
-		DiskMaxWrites = 4
-	}
-}
-
 // WaitLoad wait system load to downgrade
 func WaitLoad(maxLoad float64, maxLoops int, delay time.Duration) {
 	for i := 0; i < maxLoops; i++ {

internal/utils/fs/status_test.go

@@ -4,33 +4,10 @@ package fsutils_test
 
 import (
 	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
-	"github.com/iwind/TeaGo/assert"
 	"testing"
 	"time"
 )
 
-func TestWrites(t *testing.T) {
-	var a = assert.NewAssertion(t)
-
-	for i := 0; i < int(fsutils.DiskMaxWrites); i++ {
-		fsutils.WriteBegin()
-	}
-	a.IsFalse(fsutils.WriteReady())
-
-	fsutils.WriteEnd()
-	a.IsTrue(fsutils.WriteReady())
-}
-
 func TestWaitLoad(t *testing.T) {
 	fsutils.WaitLoad(100, 5, 1*time.Minute)
 }
-
-func BenchmarkWrites(b *testing.B) {
-	b.RunParallel(func(pb *testing.PB) {
-		for pb.Next() {
-			fsutils.WriteReady()
-			fsutils.WriteBegin()
-			fsutils.WriteEnd()
-		}
-	})
-}