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| author | Joseph Richey <joerichey@google.com> | 2017-09-29 03:16:43 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-09-29 03:16:43 -0700 |
| commit | d6efd2ab463e82cc3a78860384f26d809bd76ce5 (patch) | |
| tree | f2fbf84f4e160d0d5e107ee05338be5e0133f01b /vendor/golang.org/x/sys/unix/dev_darwin.go | |
| parent | 3ca15548454f773ea3290f810ed1b1d55fec1783 (diff) | |
| parent | ddcc450fc6d78806a0d0369bb1cdc2155f4e328e (diff) | |
Merge pull request #64 from google/new_values
Update all external dependencies to the latest version
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_darwin.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/dev_darwin.go | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/dev_darwin.go b/vendor/golang.org/x/sys/unix/dev_darwin.go new file mode 100644 index 0000000..8d1dc0f --- /dev/null +++ b/vendor/golang.org/x/sys/unix/dev_darwin.go @@ -0,0 +1,24 @@ +// Copyright 2017 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. + +// Functions to access/create device major and minor numbers matching the +// encoding used in Darwin's sys/types.h header. + +package unix + +// Major returns the major component of a Darwin device number. +func Major(dev uint64) uint32 { + return uint32((dev >> 24) & 0xff) +} + +// Minor returns the minor component of a Darwin device number. +func Minor(dev uint64) uint32 { + return uint32(dev & 0xffffff) +} + +// Mkdev returns a Darwin device number generated from the given major and minor +// components. +func Mkdev(major, minor uint32) uint64 { + return (uint64(major) << 24) | uint64(minor) +} |