stdio-lock.h
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上传日期:2009-04-28
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- /* Thread package specific definitions of stream lock type. Generic version.
- Copyright (C) 2000, 2001, 2002, 2003 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _BITS_STDIO_LOCK_H
- #define _BITS_STDIO_LOCK_H 1
- #include <bits/libc-lock.h>
- __libc_lock_define_recursive (typedef, _IO_lock_t)
- /* We need recursive (counting) mutexes. */
- #ifdef _LIBC_LOCK_RECURSIVE_INITIALIZER
- # define _IO_lock_initializer _LIBC_LOCK_RECURSIVE_INITIALIZER
- #elif _IO_MTSAFE_IO
- #error libio needs recursive mutexes for _IO_MTSAFE_IO
- #endif
- #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_recursive (_name)
- #define _IO_lock_trylock(_name) __libc_lock_trylock_recursive (_name)
- #define _IO_lock_unlock(_name) __libc_lock_unlock_recursive (_name)
- #define _IO_cleanup_region_start(_fct, _fp)
- __libc_cleanup_region_start (((_fp)->_flags & _IO_USER_LOCK) == 0, _fct, _fp)
- #define _IO_cleanup_region_start_noarg(_fct)
- __libc_cleanup_region_start (1, _fct, NULL)
- #define _IO_cleanup_region_end(_doit)
- __libc_cleanup_region_end (_doit)
- #if defined _LIBC && !defined NOT_IN_libc
- # define _IO_acquire_lock(_fp)
- _IO_cleanup_region_start ((void (*) (void *)) _IO_funlockfile, (_fp));
- _IO_flockfile (_fp)
- # define _IO_release_lock(_fp)
- _IO_funlockfile (_fp);
- _IO_cleanup_region_end (0)
- #endif
- #endif /* bits/stdio-lock.h */