From 6e2cb00008cbf09e556b00f87603797fcaa47e09 Mon Sep 17 00:00:00 2001 From: Christopher Speller Date: Mon, 16 Apr 2018 05:37:14 -0700 Subject: Depenancy upgrades and movign to dep. (#8630) --- vendor/golang.org/x/sys/unix/fcntl.go | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 vendor/golang.org/x/sys/unix/fcntl.go (limited to 'vendor/golang.org/x/sys/unix/fcntl.go') 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..0c58c7e1e --- /dev/null +++ b/vendor/golang.org/x/sys/unix/fcntl.go @@ -0,0 +1,28 @@ +// 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, _, err := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg)) + 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 +} -- cgit v1.2.3-1-g7c22