Userland/Libraries/LibC/sys/file.h at master

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serenity / Userland / Libraries / LibC / sys / file.h

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Peter Elliott LibC: Implement flock(2) using fcntl's F_SETLK 4y ago

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 1/*
 2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 3 *
 4 * SPDX-License-Identifier: BSD-2-Clause
 5 */
 6
 7#pragma once
 8
 9#include <sys/cdefs.h>
10
11__BEGIN_DECLS
12
13#define LOCK_SH 0
14#define LOCK_EX 1
15#define LOCK_UN 2
16#define LOCK_NB (1 << 2)
17
18int flock(int fd, int operation);
19
20__END_DECLS