/* lockfile - Handle locking and unlocking of stream. Copyright (C) 1996, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* #include <bits/libc-lock.h> */ #include <stdio.h> #include <pthread.h> void __flockfile (FILE *stream) { pthread_mutex_lock(&stream->lock); } weak_alias (__flockfile, flockfile); void __funlockfile (FILE *stream) { pthread_mutex_unlock(&stream->lock); } weak_alias (__funlockfile, funlockfile); int __ftrylockfile (FILE *stream) { return pthread_mutex_trylock(&stream->lock); } weak_alias (__ftrylockfile, ftrylockfile); void __fresetlockfiles (void) { FILE *fp; pthread_mutexattr_t attr; pthread_mutexattr_init(&attr); pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP); for (fp = _stdio_openlist; fp != NULL; fp = fp->nextopen) pthread_mutex_init(&fp->lock, &attr); pthread_mutexattr_destroy(&attr); }