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gitea/vendor/gopkg.in/src-d/go-billy.v4/osfs/os_posix.go

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// +build !windows
package osfs
import (
"syscall"
)
func (f *file) Lock() error {
f.m.Lock()
defer f.m.Unlock()
return syscall.Flock(int(f.File.Fd()), syscall.LOCK_EX)
}
func (f *file) Unlock() error {
f.m.Lock()
defer f.m.Unlock()
return syscall.Flock(int(f.File.Fd()), syscall.LOCK_UN)
}