e19811238f
Update our vendored copy of golang.org/x/sys to version 9aade4d3a3b7e6d876cd3823ad20ec45fc035402 to get the new Major() and Minor() helpers. Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
24 lines
739 B
Go
24 lines
739 B
Go
// 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) | minor)
|
|
}
|