blob: 5266b1848fd639f92c51122d95cc1592901c5717 [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -07001/* lockfile - Handle locking and unlocking of stream.
2 Copyright (C) 1996, 1998, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
19
20#include <bits/libc-lock.h>
21#include <stdio.h>
22#include <pthread.h>
23#include "internals.h"
24
25/* Note: glibc puts flockfile, funlockfile, and ftrylockfile in both
26 * libc and libpthread. In uClibc, they are now in libc only. */
27
28void
29__flockfilelist(void)
30{
31}
32
33void
34__funlockfilelist(void)
35{
36}
37
38void
39__fresetlockfiles (void)
40{
41 FILE *fp;
42
43 pthread_mutexattr_t attr;
44
45 __pthread_mutexattr_init (&attr);
46 __pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE_NP);
47
48 for (fp = _stdio_openlist; fp != NULL; fp = fp->__nextopen)
49 pthread_mutex_init (&fp->__lock, &attr);
50
51 pthread_mutexattr_destroy(&attr);
52}