|  | // Copyright 2014 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 aix darwin dragonfly freebsd linux netbsd openbsd | 
|  |  | 
|  | package syscall_test | 
|  |  | 
|  | import ( | 
|  | "syscall" | 
|  | "testing" | 
|  | ) | 
|  |  | 
|  | func TestMmap(t *testing.T) { | 
|  | b, err := syscall.Mmap(-1, 0, syscall.Getpagesize(), syscall.PROT_NONE, syscall.MAP_ANON|syscall.MAP_PRIVATE) | 
|  | if err != nil { | 
|  | t.Fatalf("Mmap: %v", err) | 
|  | } | 
|  | if err := syscall.Munmap(b); err != nil { | 
|  | t.Fatalf("Munmap: %v", err) | 
|  | } | 
|  | } |