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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/generic/bits/libc-lock.h
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/generic/bits/libc-lock.h')
-rw-r--r--sysdeps/generic/bits/libc-lock.h138
1 files changed, 138 insertions, 0 deletions
diff --git a/sysdeps/generic/bits/libc-lock.h b/sysdeps/generic/bits/libc-lock.h
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+++ b/sysdeps/generic/bits/libc-lock.h
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+/* libc-internal interface for mutex locks.  Stub version.
+   Copyright (C) 1996,97,99,2000-2002,2003 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_LIBC_LOCK_H
+#define _BITS_LIBC_LOCK_H 1
+
+
+/* Define a lock variable NAME with storage class CLASS.  The lock must be
+   initialized with __libc_lock_init before it can be used (or define it
+   with __libc_lock_define_initialized, below).  Use `extern' for CLASS to
+   declare a lock defined in another module.  In public structure
+   definitions you must use a pointer to the lock structure (i.e., NAME
+   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 __libc_rwlock_init(NAME)
+
+/* Same as last but this time we initialize a recursive mutex.  */
+#define __libc_lock_init_recursive(NAME)
+#define __rtld_lock_init_recursive(NAME)
+
+/* Finalize the named lock variable, which must be locked.  It cannot be
+   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.  */
+#define __libc_once_define(CLASS, NAME) CLASS int NAME = 0
+
+/* Call handler iff the first call.  */
+#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
+  do {									      \
+    if ((ONCE_CONTROL) == 0) {						      \
+      INIT_FUNCTION ();							      \
+      (ONCE_CONTROL) = 1;						      \
+    }									      \
+  } while (0)
+
+
+/* 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 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)					    \
+  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
+
+/* Type for key of thread specific data.  */
+typedef int __libc_key_t;
+
+/* Create key for thread specific data.  */
+#define __libc_key_create(KEY,DEST) -1
+
+/* Set thread-specific data associated with KEY to VAL.  */
+#define __libc_setspecific(KEY,VAL) ((void)0)
+
+/* Get thread-specific data associated with KEY.  */
+#define __libc_getspecific(KEY) 0
+
+#endif	/* bits/libc-lock.h */