25 lines
510 B
Go
25 lines
510 B
Go
//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || plan9
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// +build darwin dragonfly freebsd linux netbsd openbsd plan9
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package daemon
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import (
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"syscall"
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)
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func lockFile(fd uintptr) error {
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err := syscall.Flock(int(fd), syscall.LOCK_EX|syscall.LOCK_NB)
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if err == syscall.EWOULDBLOCK {
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err = ErrWouldBlock
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}
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return err
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}
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func unlockFile(fd uintptr) error {
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err := syscall.Flock(int(fd), syscall.LOCK_UN)
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if err == syscall.EWOULDBLOCK {
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err = ErrWouldBlock
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}
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return err
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}
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