()
| 31 | } |
| 32 | |
| 33 | func (this *Locker) Lock() error { |
| 34 | if this.fp == nil { |
| 35 | fp, err := os.OpenFile(this.path, os.O_CREATE|os.O_WRONLY, 0666) |
| 36 | if err != nil { |
| 37 | return err |
| 38 | } |
| 39 | this.fp = fp |
| 40 | } |
| 41 | |
| 42 | for { |
| 43 | b, err := this.tryLock() |
| 44 | if err != nil { |
| 45 | _ = this.fp.Close() |
| 46 | return err |
| 47 | } |
| 48 | if b { |
| 49 | return nil |
| 50 | } |
| 51 | time.Sleep(100 * time.Millisecond) |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | func (this *Locker) Release() error { |
| 56 | err := this.fp.Close() |