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bfs: bfs.FS增加锁 (experimental)

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This commit is contained in:
GoEdgeLab
2024-04-26 19:26:22 +08:00
parent 65fbafb712
commit 7da945690f
2 changed files with 40 additions and 12 deletions
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32
internal/utils/bfs/fs.go
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@@ -4,6 +4,7 @@ package bfs
import (
"errors"
fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
"log"
"sync"
"time"
@@ -19,20 +20,29 @@ type FS struct {
isClosed bool
syncTicker *time.Ticker
locker *fsutils.Locker
}
func NewFS(dir string, options *FSOptions) *FS {
func OpenFS(dir string, options *FSOptions) (*FS, error) {
options.EnsureDefaults()
var locker = fsutils.NewLocker(dir + "/fs")
err := locker.Lock()
if err != nil {
return nil, err
}
var fs = &FS{
dir: dir,
bMap: map[string]*BlocksFile{},
mu: &sync.RWMutex{},
opt: options,
syncTicker: time.NewTicker(1 * time.Second),
locker: locker,
}
go fs.init()
return fs
return fs, nil
}
func (this *FS) init() {
@@ -47,7 +57,7 @@ func (this *FS) OpenFileWriter(hash string, bodySize int64, isPartial bool) (*Fi
return nil, errors.New("invalid body size for partial content")
}
bFile, err := this.openBFileForWriting(hash)
bFile, err := this.openBFileForHashWriting(hash)
if err != nil {
return nil, err
}
@@ -55,7 +65,7 @@ func (this *FS) OpenFileWriter(hash string, bodySize int64, isPartial bool) (*Fi
}
func (this *FS) OpenFileReader(hash string, isPartial bool) (*FileReader, error) {
bFile, err := this.openBFileForReading(hash)
bFile, err := this.openBFileForHashReading(hash)
if err != nil {
return nil, err
}
@@ -63,7 +73,7 @@ func (this *FS) OpenFileReader(hash string, isPartial bool) (*FileReader, error)
}
func (this *FS) ExistFile(hash string) (bool, error) {
bFile, err := this.openBFileForReading(hash)
bFile, err := this.openBFileForHashReading(hash)
if err != nil {
return false, err
}
@@ -71,7 +81,7 @@ func (this *FS) ExistFile(hash string) (bool, error) {
}
func (this *FS) RemoveFile(hash string) error {
bFile, err := this.openBFileForWriting(hash)
bFile, err := this.openBFileForHashWriting(hash)
if err != nil {
return err
}
@@ -90,6 +100,12 @@ func (this *FS) Close() error {
}
}
this.mu.Unlock()
err := this.locker.Release()
if err != nil {
lastErr = err
}
return lastErr
}
@@ -139,7 +155,7 @@ func (this *FS) syncLoop() {
}
}
func (this *FS) openBFileForWriting(hash string) (*BlocksFile, error) {
func (this *FS) openBFileForHashWriting(hash string) (*BlocksFile, error) {
err := CheckHashErr(hash)
if err != nil {
return nil, err
@@ -160,7 +176,7 @@ func (this *FS) openBFileForWriting(hash string) (*BlocksFile, error) {
return this.openBFile(bPath, bName)
}
func (this *FS) openBFileForReading(hash string) (*BlocksFile, error) {
func (this *FS) openBFileForHashReading(hash string) (*BlocksFile, error) {
err := CheckHashErr(hash)
if err != nil {
return nil, err