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- Based on the
syscall.FcntlFlockandsyscall.Flockto achieve global file locks and local file locks. - Only the method of the UNIX system is implemented, Window is temporarily unavailable. If you are interested, you can submit the relevant method
- Introduce
go get github.com/guojia99/go-flock
- Interface
type LockFile interface {
File() *os.File
Lock() error
RLock() error
TryLock() bool
TryRLock() bool
Unlock() error
}- Use global file lock
package main
import (
"github.com/guojia99/flock"
)
func main(){
fl := flock.OpenLockFile("file.file")
fl.Lock()
defer fl.Unlock()
fl.File().Write([]byte{1, 2, 3})
}- Use the file local lock, of which 0, 1000 means that the lock is valid for the 0 to 1000 bytes
package main
import (
"github.com/guojia99/flock"
)
func main(){
fl := flock.OpenBlockLockFile("file.file", 0, 1000)
fl.Lock()
defer fl.Unlock()
fl.File().WriteAt([]byte{1, 2, 3}, 0)
fl2 := flock.OpenBlockLockFile("file.file", 1000, 2000)
fl2.Lock()
defer fl2.Unlock()
fl.File().WriteAt([]byte{1, 2, 3}, 1000)
}Go-Flock is based on the Apache 2.0 license and checksLICENSEto get more information.
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