| // Copyright 2011 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 freebsd linux netbsd openbsd |
| |
| package time |
| |
| import "syscall" |
| |
| // for testing: whatever interrupts a sleep |
| func interrupt() { |
| syscall.Kill(syscall.Getpid(), syscall.SIGCHLD) |
| } |
| |
| // readFile reads and returns the content of the named file. |
| // It is a trivial implementation of ioutil.ReadFile, reimplemented |
| // here to avoid depending on io/ioutil or os. |
| func readFile(name string) ([]byte, error) { |
| f, err := syscall.Open(name, syscall.O_RDONLY, 0) |
| if err != nil { |
| return nil, err |
| } |
| defer syscall.Close(f) |
| var ( |
| buf [4096]byte |
| ret []byte |
| n int |
| ) |
| for { |
| n, err = syscall.Read(f, buf[:]) |
| if n > 0 { |
| ret = append(ret, buf[:n]...) |
| } |
| if n == 0 || err != nil { |
| break |
| } |
| } |
| return ret, err |
| } |