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2013ad897d
The pipe2 syscall is part of OpenBSD since version 5.7 and thus exists in all officially supported versions. Follows CL 38426 and CL 94035 Change-Id: I8f93ecbc89664241f1b6b0d069e948776941b1d0 Reviewed-on: https://go-review.googlesource.com/97356 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
29 lines
793 B
Go
29 lines
793 B
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly nacl solaris
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package os
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import "syscall"
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// Pipe returns a connected pair of Files; reads from r return bytes written to w.
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// It returns the files and an error, if any.
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func Pipe() (r *File, w *File, err error) {
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var p [2]int
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// See ../syscall/exec.go for description of lock.
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syscall.ForkLock.RLock()
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e := syscall.Pipe(p[0:])
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if e != nil {
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syscall.ForkLock.RUnlock()
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return nil, nil, NewSyscallError("pipe", e)
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}
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syscall.CloseOnExec(p[0])
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syscall.CloseOnExec(p[1])
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syscall.ForkLock.RUnlock()
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return newFile(uintptr(p[0]), "|0", kindPipe), newFile(uintptr(p[1]), "|1", kindPipe), nil
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}
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