| // Copyright 2018 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| //go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris |
| // +build darwin dragonfly freebsd linux netbsd openbsd solaris |
| |
| package unix_test |
| |
| import ( |
| "log" |
| "os" |
| |
| "golang.org/x/sys/unix" |
| ) |
| |
| func ExampleFlock() { |
| f, _ := os.Create("example.lock") |
| if err := unix.Flock(int(f.Fd()), unix.LOCK_EX); err != nil { |
| log.Fatal(err) |
| } |
| // Do work here that requires the lock. When finished, release the lock: |
| if err := unix.Flock(int(f.Fd()), unix.LOCK_UN); err != nil { |
| log.Fatal(err) |
| } |
| } |