Files
sys/unix/example_test.go
Kevin Burke 4ea2f632f6 unix: add example for Flock
The method signature does not explain much about how to use the
function, and which arguments to invoke it with, so an example would
be helpful.

Change-Id: I95747567b2cafe70da1e04939c39f6b507f12684
Reviewed-on: https://go-review.googlesource.com/130317
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-08-21 04:44:26 +00:00

31 lines
700 B
Go

// 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.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package unix_test
import (
"log"
"os"
"golang.org/x/sys/unix"
)
func ExampleExec() {
err := unix.Exec("/bin/ls", []string{"ls", "-al"}, os.Environ())
log.Fatal(err)
}
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)
}
}