diff options
author | baude <bbaude@redhat.com> | 2018-06-28 13:52:12 -0500 |
---|---|---|
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/fcntl.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/fcntl.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/fcntl.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/fcntl.go b/vendor/golang.org/x/sys/unix/fcntl.go new file mode 100644 index 000000000..9379ba9ce --- /dev/null +++ b/vendor/golang.org/x/sys/unix/fcntl.go @@ -0,0 +1,32 @@ +// Copyright 2014 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. + +// +build darwin dragonfly freebsd linux netbsd openbsd + +package unix + +import "unsafe" + +// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux +// systems by flock_linux_32bit.go to be SYS_FCNTL64. +var fcntl64Syscall uintptr = SYS_FCNTL + +// FcntlInt performs a fcntl syscall on fd with the provided command and argument. +func FcntlInt(fd uintptr, cmd, arg int) (int, error) { + valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg)) + var err error + if errno != 0 { + err = errno + } + return int(valptr), err +} + +// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. +func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { + _, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk))) + if errno == 0 { + return nil + } + return errno +} |