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Serenity Operating System
1/*
2 * Copyright (c) 2021, Peter Elliott <pelliott@serenityos.org>
3 * Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
4 *
5 * SPDX-License-Identifier: BSD-2-Clause
6 */
7
8#include <AK/Assertions.h>
9#include <fcntl.h>
10#include <stdio.h>
11#include <sys/file.h>
12
13extern "C" {
14
15int flock(int fd, int operation)
16{
17 struct flock lock {
18 short(operation & 0b11), SEEK_SET, 0, 0, 0
19 };
20 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &lock);
21}
22}