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37 lines
793 B
37 lines
793 B
// +build !windows
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package internet
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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// Acquire lock
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func (fl *FileLocker) Acquire() error {
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f, err := os.Create(fl.path)
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if err != nil {
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return err
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}
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if err := unix.Flock(int(f.Fd()), unix.LOCK_EX); err != nil {
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f.Close()
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return newError("failed to lock file: ", fl.path).Base(err)
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}
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fl.file = f
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return nil
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}
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// Release lock
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func (fl *FileLocker) Release() {
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if err := unix.Flock(int(fl.file.Fd()), unix.LOCK_UN); err != nil {
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newError("failed to unlock file: ", fl.path).Base(err).WriteToLog()
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}
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if err := fl.file.Close(); err != nil {
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newError("failed to close file: ", fl.path).Base(err).WriteToLog()
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}
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if err := os.Remove(fl.path); err != nil {
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newError("failed to remove file: ", fl.path).Base(err).WriteToLog()
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}
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}
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