/* libc-internal interface for mutex locks. Stub version.
- Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996-2014 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.
+ 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
- Library General Public License for more details.
+ Lesser 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. */
+ 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 _BITS_LIBC_LOCK_H
#define _BITS_LIBC_LOCK_H 1
begins with a `*'), because its storage size will not be known outside
of libc. */
#define __libc_lock_define(CLASS,NAME)
+#define __libc_lock_define_recursive(CLASS,NAME)
+#define __rtld_lock_define_recursive(CLASS,NAME)
+#define __libc_rwlock_define(CLASS,NAME)
/* Define an initialized lock variable NAME with storage class CLASS. */
#define __libc_lock_define_initialized(CLASS,NAME)
+#define __libc_rwlock_define_initialized(CLASS,NAME)
/* Define an initialized recursive lock variable NAME with storage
class CLASS. */
#define __libc_lock_define_initialized_recursive(CLASS,NAME)
+#define __rtld_lock_define_initialized_recursive(CLASS,NAME)
/* Initialize the named lock variable, leaving it in a consistent, unlocked
state. */
#define __libc_lock_init(NAME)
+#define __rtld_lock_initialize(NAME)
+#define __libc_rwlock_init(NAME)
/* Same as last but this time we initialize a recursive mutex. */
#define __libc_lock_init_recursive(NAME)
used again until __libc_lock_init is called again on it. This must be
called on a lock variable before the containing storage is reused. */
#define __libc_lock_fini(NAME)
+#define __libc_rwlock_fini(NAME)
/* Finalize recursive named lock. */
#define __libc_lock_fini_recursive(NAME)
/* Lock the named lock variable. */
#define __libc_lock_lock(NAME)
+#define __libc_rwlock_rdlock(NAME)
+#define __libc_rwlock_wrlock(NAME)
/* Lock the recursive named lock variable. */
#define __libc_lock_lock_recursive(NAME)
+#define __rtld_lock_lock_recursive(NAME)
/* Try to lock the named lock variable. */
#define __libc_lock_trylock(NAME) 0
+#define __libc_rwlock_tryrdlock(NAME) 0
+#define __libc_rwlock_trywrlock(NAME) 0
/* Try to lock the recursive named lock variable. */
#define __libc_lock_trylock_recursive(NAME) 0
/* Unlock the named lock variable. */
#define __libc_lock_unlock(NAME)
+#define __libc_rwlock_unlock(NAME)
/* Unlock the recursive named lock variable. */
#define __libc_lock_unlock_recursive(NAME)
+#define __rtld_lock_unlock_recursive(NAME)
/* Define once control variable. */
} \
} while (0)
+/* Get once control variable. */
+#define __libc_once_get(ONCE_CONTROL) \
+ ((ONCE_CONTROL) == 1)
-/* Start critical region with cleanup. */
-#define __libc_cleanup_region_start(FCT, ARG)
+/* Start a critical region with a cleanup function */
+#define __libc_cleanup_region_start(DOIT, FCT, ARG) \
+{ \
+ typeof (***(FCT)) *__save_FCT = (DOIT) ? (FCT) : 0; \
+ typeof (ARG) __save_ARG = ARG; \
+ /* close brace is in __libc_cleanup_region_end below. */
-/* End critical region with cleanup. */
-#define __libc_cleanup_region_end(DOIT)
+/* End a critical region started with __libc_cleanup_region_start. */
+#define __libc_cleanup_region_end(DOIT) \
+ if ((DOIT) && __save_FCT != 0) \
+ (*__save_FCT)(__save_ARG); \
+}
/* Sometimes we have to exit the block in the middle. */
-#define __libc_cleanup_end(DOIT)
+#define __libc_cleanup_end(DOIT) \
+ if ((DOIT) && __save_FCT != 0) \
+ (*__save_FCT)(__save_ARG); \
+#define __libc_cleanup_push(fct, arg) __libc_cleanup_region_start (1, fct, arg)
+#define __libc_cleanup_pop(execute) __libc_cleanup_region_end (execute)
/* We need portable names for some of the functions. */
#define __libc_mutex_unlock
typedef int __libc_key_t;
/* Create key for thread specific data. */
-#define __libc_key_create(KEY,DEST) -1
+#define __libc_key_create(KEY,DEST) ((void) (KEY), (void) (DEST), -1)
/* Set thread-specific data associated with KEY to VAL. */
-#define __libc_setspecific(KEY,VAL) -1
+#define __libc_setspecific(KEY,VAL) ((void) (KEY), (void) (VAL))
/* Get thread-specific data associated with KEY. */
-#define __libc_getspecific(KEY) 0
+#define __libc_getspecific(KEY) ((void) (KEY), (void *) 0)
#endif /* bits/libc-lock.h */
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