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https://github.com/opencontainers/runc.git
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85de7ec363
It turns out that the standard "syscall" library is not recommended for new programs. runC will need to eventually move to this, but for now include it in vendor so we can use it for new features. Signed-off-by: Aleksa Sarai <asarai@suse.de>
25 lines
752 B
Go
25 lines
752 B
Go
// +build linux darwin freebsd openbsd netbsd dragonfly
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd linux netbsd openbsd
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package unix
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import "unsafe"
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// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
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// systems by flock_linux_32bit.go to be SYS_FCNTL64.
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var fcntl64Syscall uintptr = SYS_FCNTL
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// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
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func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
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_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
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if errno == 0 {
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return nil
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}
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return errno
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}
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