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author | baude <bbaude@redhat.com> | 2018-06-28 13:52:12 -0500 |
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committer | Atomic Bot <atomic-devel@projectatomic.io> | 2018-06-28 20:28:38 +0000 |
commit | 67f68626e6e5116ec088f511a0f8a17158b303db (patch) | |
tree | f95284f8e3ea61421309f2b363a0b3bca6764075 /vendor/golang.org/x/sys/unix/dev_dragonfly.go | |
parent | 45c745e0b0d0fe648283e954b8e1b37a46887458 (diff) | |
download | podman-67f68626e6e5116ec088f511a0f8a17158b303db.tar.gz podman-67f68626e6e5116ec088f511a0f8a17158b303db.tar.bz2 podman-67f68626e6e5116ec088f511a0f8a17158b303db.zip |
vendor in latest golang/x/sys
Signed-off-by: baude <bbaude@redhat.com>
Closes: #1022
Approved by: baude
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_dragonfly.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/dev_dragonfly.go | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/dev_dragonfly.go b/vendor/golang.org/x/sys/unix/dev_dragonfly.go new file mode 100644 index 000000000..8502f202c --- /dev/null +++ b/vendor/golang.org/x/sys/unix/dev_dragonfly.go @@ -0,0 +1,30 @@ +// 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 Dragonfly's sys/types.h header. +// +// The information below is extracted and adapted from sys/types.h: +// +// Minor gives a cookie instead of an index since in order to avoid changing the +// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for +// devices that don't use them. + +package unix + +// Major returns the major component of a DragonFlyBSD device number. +func Major(dev uint64) uint32 { + return uint32((dev >> 8) & 0xff) +} + +// Minor returns the minor component of a DragonFlyBSD device number. +func Minor(dev uint64) uint32 { + return uint32(dev & 0xffff00ff) +} + +// Mkdev returns a DragonFlyBSD device number generated from the given major and +// minor components. +func Mkdev(major, minor uint32) uint64 { + return (uint64(major) << 8) | uint64(minor) +} |