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mirror of https://sourceware.org/git/glibc.git synced 2025-05-08 18:21:37 +03:00
Ulrich Drepper 3afd949152 Update.
* libio/genops.c (_IO_list_all_stamp): New variable.
	(_IO_un_link): Bump _IO_list_all_stamp after removing from list.
	(_IO_link): Likewise for insertion.
	(flush_cleanup): New function.
	(_IO_flush_all): Get list_all_lock and all individual locks for the
	streams.  Detect and handle changes to the _IO_list_all list.
	(_IO_flush_all_linebuffered): Likewise.
	* sysdeps/generic/bits/stdio-lock.h: Define
	_IO_cleanup_region_start_noarg.
	* sysdeps/mach/hurd/bits/stdio-lock.c: Likewise.
2001-07-24 01:33:57 +00:00

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C

/* Thread package specific definitions of stream lock type.
Copyright (C) 1996, 1997, 1998, 2000, 2001 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 <pthread.h>
typedef pthread_mutex_t _IO_lock_t;
/* We need recursive (counting) mutexes. */
#define _IO_lock_initializer PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
#define _IO_cleanup_region_start(_fct, _fp) \
{ struct _pthread_cleanup_buffer _buffer; \
int _avail = (((_fp)->_flags & _IO_USER_LOCK) == 0 \
&& _pthread_cleanup_push_defer != NULL); \
if (_avail) { \
_pthread_cleanup_push_defer (&_buffer, (_fct), (_fp)); \
}
#define _IO_cleanup_region_start_noarg(_fct) \
{ struct _pthread_cleanup_buffer _buffer; \
int _avail = _pthread_cleanup_push_defer != NULL; \
if (_avail) { \
_pthread_cleanup_push_defer (&_buffer, (_fct), NULL); \
}
#define _IO_cleanup_region_end(_doit) \
__libc_cleanup_region_end (_doit)
#define _IO_lock_init(_name) \
__libc_lock_init_recursive (_name)
#define _IO_lock_fini(_name) \
__libc_lock_fini_recursive (_name)
#define _IO_lock_lock(_name) \
__libc_lock_lock (_name)
#define _IO_lock_unlock(_name) \
__libc_lock_unlock (_name)