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58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
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/* Thread package specific definitions of stream lock type. Hurd version.
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _STDIO_LOCK_H
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#define _STDIO_LOCK_H 1
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#include <libc-lock.h>
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__libc_lock_define_recursive (typedef, _IO_lock_t)
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#define _IO_lock_t_defined 1
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/* We need recursive (counting) mutexes. */
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# define _IO_lock_initializer _LIBC_LOCK_RECURSIVE_INITIALIZER
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#define _IO_lock_init(_name) __libc_lock_init_recursive (_name)
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#define _IO_lock_fini(_name) __libc_lock_fini_recursive (_name)
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#define _IO_lock_lock(_name) __libc_lock_lock_recursive (_name)
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#define _IO_lock_trylock(_name) __libc_lock_trylock_recursive (_name)
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#define _IO_lock_unlock(_name) __libc_lock_unlock_recursive (_name)
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#define _IO_cleanup_region_start(_fct, _fp) \
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__libc_cleanup_region_start (((_fp)->_flags & _IO_USER_LOCK) == 0, _fct, _fp)
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#define _IO_cleanup_region_start_noarg(_fct) \
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__libc_cleanup_region_start (1, _fct, NULL)
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#define _IO_cleanup_region_end(_doit) \
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__libc_cleanup_region_end (_doit)
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#if defined _LIBC && IS_IN (libc)
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# define _IO_acquire_lock(_fp) \
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do { \
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_IO_cleanup_region_start((void (*) (void *)) &_IO_funlockfile, _fp); \
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_IO_flockfile (_fp);
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# define _IO_release_lock(_fp) \
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_IO_funlockfile (_fp); \
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_IO_cleanup_region_end (0); \
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} while (0)
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#endif
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#endif /* stdio-lock.h */
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