diff options
author | Russ Cox <rsc@golang.org> | 2014-09-08 00:08:51 -0400 |
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committer | Russ Cox <rsc@golang.org> | 2014-09-08 00:08:51 -0400 |
commit | 8528da672cc093d4dd06732819abc1f7b6b5a46e (patch) | |
tree | 334be80d4a4c85b77db6f6fdb67cbf0528cba5f5 /src/os/sys_darwin.go | |
parent | 73bcb69f272cbf34ddcc9daa56427a8683b5a95d (diff) | |
download | go-8528da672cc093d4dd06732819abc1f7b6b5a46e.tar.gz |
build: move package sources from src/pkg to src
Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
Diffstat (limited to 'src/os/sys_darwin.go')
-rw-r--r-- | src/os/sys_darwin.go | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/os/sys_darwin.go b/src/os/sys_darwin.go new file mode 100644 index 000000000..7a8330abb --- /dev/null +++ b/src/os/sys_darwin.go @@ -0,0 +1,31 @@ +// 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. + +package os + +import "syscall" + +// supportsCloseOnExec reports whether the platform supports the +// O_CLOEXEC flag. +var supportsCloseOnExec bool + +func init() { + // Seems like kern.osreldate is veiled on latest OS X. We use + // kern.osrelease instead. + osver, err := syscall.Sysctl("kern.osrelease") + if err != nil { + return + } + var i int + for i = range osver { + if osver[i] != '.' { + continue + } + } + // The O_CLOEXEC flag was introduced in OS X 10.7 (Darwin + // 11.0.0). See http://support.apple.com/kb/HT1633. + if i > 2 || i == 2 && osver[0] >= '1' && osver[1] >= '1' { + supportsCloseOnExec = true + } +} |