00001 /******************************************************************************* 00002 * Copyright (C) 2004 Vintela, Inc. All rights reserved. 00003 * Copyright (C) 2005 Novell, Inc. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * - Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * 00011 * - Redistributions in binary form must reproduce the above copyright notice, 00012 * this list of conditions and the following disclaimer in the documentation 00013 * and/or other materials provided with the distribution. 00014 * 00015 * - Neither the name of Vintela, Inc., Novell, Inc., nor the names of its 00016 * contributors may be used to endorse or promote products derived from this 00017 * software without specific prior written permission. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc., Novell, Inc., OR THE 00023 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00024 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00025 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 00026 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00027 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 00028 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00029 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 *******************************************************************************/ 00031 00036 #ifndef BLOCXX_THREAD_ONCE_HPP_INCLUDE_GUARD_ 00037 #define BLOCXX_THREAD_ONCE_HPP_INCLUDE_GUARD_ 00038 #include "blocxx/BLOCXX_config.h" 00039 00040 #if defined(BLOCXX_USE_PTHREAD) 00041 #include <pthread.h> 00042 #endif 00043 00044 namespace BLOCXX_NAMESPACE 00045 { 00046 00047 #if defined(BLOCXX_USE_PTHREAD) 00048 00049 typedef pthread_once_t OnceFlag; 00050 #define BLOCXX_ONCE_INIT PTHREAD_ONCE_INIT 00051 00052 #elif defined(BLOCXX_WIN32) 00053 00054 typedef long OnceFlag; 00055 #define BLOCXX_ONCE_INIT 0 00056 00057 #else 00058 #error "Port me!" 00059 #endif 00060 00065 void BLOCXX_COMMON_API callOnce(OnceFlag& flag, void (*func)()); 00066 00067 00068 00069 #if defined(BLOCXX_USE_PTHREAD) 00070 00071 inline void callOnce(OnceFlag& flag, void (*func)()) 00072 { 00073 pthread_once(&flag, func); 00074 } 00075 00076 #endif 00077 00078 00079 } // end namespace BLOCXX_NAMESPACE 00080 00081 #endif 00082