30 lines
561 B
Go
30 lines
561 B
Go
//go:build !windows
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package processlock
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import (
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"errors"
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"fmt"
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"os"
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"golang.org/x/sys/unix"
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)
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func lockFile(file *os.File) error {
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err := unix.Flock(int(file.Fd()), unix.LOCK_EX|unix.LOCK_NB)
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if errors.Is(err, unix.EWOULDBLOCK) || errors.Is(err, unix.EAGAIN) {
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return ErrLocked
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}
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if err != nil {
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return fmt.Errorf("获取进程锁失败：%w", err)
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}
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return nil
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}
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func unlockFile(file *os.File) error {
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if err := unix.Flock(int(file.Fd()), unix.LOCK_UN); err != nil {
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return fmt.Errorf("释放进程锁失败：%w", err)
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}
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return nil
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}
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