blob: 4987155fe4c42863bcf599e0c6d3276b62f0907c [file] [log] [blame]
/***************************************************************************
*
* _mutex-pthread.h - definitions of classes for thread safety
* using POSIX threads
*
* This is an internal header file used to implement the C++ Standard
* Library. It should never be #included directly by a program.
*
* $Id$
*
***************************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*
* Copyright 1994-2008 Rogue Wave Software, Inc.
*
**************************************************************************/
#if defined (_RWSTD_EDG_ECCP) && defined (_RWSTD_OS_LINUX) \
&& defined (_RWSTD_NO_LONG_LONG)
// disable error #450-D: the type "long long" is nonstandard
// when using the vanilla EDG eccp in strict mode (i.e., w/o
// long long support)
# pragma diag_suppress 450
#endif // EDG eccp on Linux
// LinuxThreads man page:
// "Variables of type pthread_mutex_t can also be initialized
// statically, using the constants PTHREAD_MUTEX_INITIALIZER
// (for fast mutexes), PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
// (for recursive mutexes), and PTHREAD_ERRORCHECK_MUTEX_INI-
// TIALIZER_NP (for error checking mutexes)."
// ...
// "Attempting to initialize an already initialized mutex results
// in undefined behavior."
#include <pthread.h>
#define _RWSTD_MUTEX_INIT(mutex) pthread_mutex_init (&mutex, 0)
#define _RWSTD_MUTEX_DESTROY(mutex) pthread_mutex_destroy (&mutex)
#define _RWSTD_MUTEX_LOCK(mutex) pthread_mutex_lock (&mutex)
#define _RWSTD_MUTEX_UNLOCK(mutex) pthread_mutex_unlock (&mutex)
#define _RWSTD_MUTEX_T pthread_mutex_t
#if defined (__GNUG__) && defined (__osf__)
// prevent g++ warnings about missing initializers
// see <pthread.h> for explanation of _PTHREAD_NOMETER_STATIC
# ifndef _PTHREAD_NOMETER_STATIC
# define _RWSTD_MUTEX_INITIALIZER \
{ _PTHREAD_MSTATE_SLOW, _PTHREAD_MVALID | _PTHREAD_MVF_STA, \
0, 0, 0, 0, 0, 0 }
# else // if defined (_PTHREAD_NOMETER_STATIC)
# define _RWSTD_MUTEX_INITIALIZER
{ 0, _PTHREAD_MVALID | _PTHREAD_MVF_STA, 0, 0, 0, 0, 0, 0 }
# endif // _PTHREAD_NOMETER_STATIC
#elif defined (__GNUG__) && defined (__sgi__)
// prevent g++ warnings about a partly bracketed initializer
# define _RWSTD_MUTEX_INITIALIZER { PTHREAD_MUTEX_INITIALIZER }
#else
# define _RWSTD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
#endif