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author | Jesse Duffield <jessedduffield@gmail.com> | 2021-04-01 21:07:21 +1100 |
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committer | Jesse Duffield <jessedduffield@gmail.com> | 2021-04-06 19:34:32 +1000 |
commit | 5f77ac8d6f1b1de0af59ca839f2773f34f441c4d (patch) | |
tree | bece49a1f147e1796bf6bac3412bcb6b3d0aacb8 /vendor/golang.org/x/sys/unix/dev_zos.go | |
parent | 5d0cf3d9197b66cfc12c61691a9b242584778d1d (diff) |
bump gocui
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_zos.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/dev_zos.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/dev_zos.go b/vendor/golang.org/x/sys/unix/dev_zos.go new file mode 100644 index 000000000..a388e59a0 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/dev_zos.go @@ -0,0 +1,29 @@ +// Copyright 2020 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. + +//go:build zos && s390x +// +build zos,s390x + +// Functions to access/create device major and minor numbers matching the +// encoding used by z/OS. +// +// The information below is extracted and adapted from <sys/stat.h> macros. + +package unix + +// Major returns the major component of a z/OS device number. +func Major(dev uint64) uint32 { + return uint32((dev >> 16) & 0x0000FFFF) +} + +// Minor returns the minor component of a z/OS device number. +func Minor(dev uint64) uint32 { + return uint32(dev & 0x0000FFFF) +} + +// Mkdev returns a z/OS device number generated from the given major and minor +// components. +func Mkdev(major, minor uint32) uint64 { + return (uint64(major) << 16) | uint64(minor) +} |