mirror of
https://github.com/wavetermdev/waveterm.git
synced 2025-02-20 02:22:28 +01:00
31 lines
608 B
Go
31 lines
608 B
Go
// Copyright 2025, Command Line Inc.
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// SPDX-License-Identifier: Apache-2.0
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//go:build !windows
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package wavebase
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import (
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"log"
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"os"
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"path/filepath"
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"golang.org/x/sys/unix"
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)
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func AcquireWaveLock() (FDLock, error) {
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dataHomeDir := GetWaveDataDir()
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lockFileName := filepath.Join(dataHomeDir, WaveLockFile)
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log.Printf("[base] acquiring lock on %s\n", lockFileName)
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fd, err := os.OpenFile(lockFileName, os.O_RDWR|os.O_CREATE, 0600)
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if err != nil {
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return nil, err
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}
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err = unix.Flock(int(fd.Fd()), unix.LOCK_EX|unix.LOCK_NB)
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if err != nil {
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fd.Close()
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return nil, err
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}
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return fd, nil
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}
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