mirror of
https://github.com/garethgeorge/backrest.git
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30 lines
472 B
Go
30 lines
472 B
Go
//go:build linux || darwin
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// +build linux darwin
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package resticinstaller
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import (
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"os"
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"path"
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"syscall"
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)
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func withFlock(lock string, do func() error) error {
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if err := os.MkdirAll(path.Dir(lock), 0700); err != nil {
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return err
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}
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f, err := os.Create(lock)
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if err != nil {
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return err
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}
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defer f.Close()
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if err := syscall.Flock(int(f.Fd()), syscall.LOCK_EX); err != nil {
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return err
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}
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defer syscall.Flock(int(f.Fd()), syscall.LOCK_UN)
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return do()
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}
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