diff options
| author | n1c00o <n@nc0.fr> | 2023-02-05 14:05:26 +0100 |
|---|---|---|
| committer | Nicolas <34602094+n1c00o@users.noreply.github.com> | 2023-02-06 22:35:54 +0100 |
| commit | b371cb11a5877ede8847351e95c7847b5024a551 (patch) | |
| tree | 958227cf8562503246976744b89370d389de5f66 /vendor/golang.org/x/sys/unix/dev_dragonfly.go | |
| parent | 03e0c597ad5f3539ad33976fe02c11a9e39f34d6 (diff) | |
Init Go module
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 0000000..8502f20 --- /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) +} |
