1/* Copyright (C) 1992-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <sys/file.h>
20#include <hurd/fd.h>
21#include <hurd/fs.h>
22
23/* Apply or remove an advisory lock, according to OPERATION,
24 on the file FD refers to. */
25int
26__flock (int fd, int operation)
27{
28 error_t err;
29
30 if (err = HURD_DPORT_USE (fd, __file_lock (port, operation)))
31 return __hurd_dfail (fd, err);
32
33 return 0;
34}
35
36weak_alias (__flock, flock)
37

source code of glibc/sysdeps/mach/hurd/flock.c