27 lines
421 B
Go
27 lines
421 B
Go
//go:build linux
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package state
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import (
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"errors"
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"os"
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"syscall"
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)
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func lockExclusive(f *os.File) error {
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err := syscall.Flock(int(f.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
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if errors.Is(err, syscall.EWOULDBLOCK) || errors.Is(err, syscall.EAGAIN) {
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return ErrBusy
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}
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return err
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}
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func syncDirectory(r *os.Root) error {
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f, err := r.Open(".")
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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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return f.Sync()
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}
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