//go:build !windows

package host

import (
	"os"
	"syscall"
)

// lockFileEx takes an exclusive advisory lock on f, and unlockFile drops it.
// syscall.Flock is available on both linux and darwin, which covers every
// platform that runs a restart pass.
func lockFileEx(f *os.File) error { return syscall.Flock(int(f.Fd()), syscall.LOCK_EX) }

func unlockFile(f *os.File) { syscall.Flock(int(f.Fd()), syscall.LOCK_UN) } //nolint:errcheck