/* Thread package specific definitions of stream lock type.  Generic version.

   Copyright (C) 2000-2018 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, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _STDIO_LOCK_H

#define _STDIO_LOCK_H 1

#include <libc-lock.h>

__libc_lock_define_recursive (typedef, _IO_lock_t)

#define _IO_lock_t_defined 1

/* 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 && IS_IN (libc)

# ifdef __EXCEPTIONS

# define _IO_acquire_lock(_fp) \

  do {									      \

    FILE *_IO_acquire_lock_file						      \

	__attribute__((cleanup (_IO_acquire_lock_fct)))			      \

	= (_fp);							      \

    _IO_flockfile (_IO_acquire_lock_file);

#  define _IO_acquire_lock_clear_flags2(_fp) \

  do {									      \

    FILE *_IO_acquire_lock_file						      \

	__attribute__((cleanup (_IO_acquire_lock_clear_flags2_fct)))	      \

	= (_fp);							      \

    _IO_flockfile (_IO_acquire_lock_file);

# else

#  define _IO_acquire_lock(_fp) _IO_acquire_lock_needs_exceptions_enabled

#  define _IO_acquire_lock_clear_flags2(_fp) _IO_acquire_lock (_fp)

# endif

# define _IO_release_lock(_fp) ; } while (0)

#endif

#endif /* stdio-lock.h */