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 00032 00038 #ifndef BLOCXX_THREAD_TYPES_HPP_ 00039 #define BLOCXX_THREAD_TYPES_HPP_ 00040 #include "blocxx/BLOCXX_config.h" 00041 00042 // The classes and functions defined in this file are not meant for general 00043 // use, they are internal implementation details. They may change at any time. 00044 00045 #if defined(BLOCXX_USE_PTHREAD) 00046 00047 #include <pthread.h> 00048 00049 namespace BLOCXX_NAMESPACE 00050 { 00051 00052 // Platform specific thread type 00053 typedef pthread_t Thread_t; 00054 typedef pthread_mutex_t NativeMutex_t; 00055 struct NonRecursiveMutex_t 00056 { 00057 pthread_mutex_t mutex; 00058 }; 00059 00060 #if defined(BLOCXX_HAVE_PTHREAD_MUTEXATTR_SETTYPE) 00061 // Platform specific mutex type 00062 // we have native recursive mutexes. 00063 struct Mutex_t 00064 { 00065 pthread_mutex_t mutex; 00066 }; 00067 00068 #else 00069 00070 // we have to emulate recursive mutexes. 00071 struct Mutex_t 00072 { 00073 pthread_mutex_t mutex; 00074 pthread_cond_t unlocked; 00075 bool valid_id; 00076 unsigned count; 00077 pthread_t thread_id; 00078 }; 00079 #endif 00080 00081 // Platform specific conditional variable type 00082 typedef pthread_cond_t ConditionVar_t; 00083 struct NonRecursiveMutexLockState 00084 { 00085 pthread_t thread_id; 00086 NativeMutex_t* pmutex; 00087 }; 00088 00089 } // end namespace BLOCXX_NAMESPACE 00090 00091 #elif defined(BLOCXX_WIN32) 00092 00093 namespace BLOCXX_NAMESPACE 00094 { 00095 // Platform specific thread type 00096 typedef DWORD Thread_t; 00097 typedef HANDLE NativeMutex_t; 00098 typedef HANDLE NonRecursiveMutex_t; 00099 typedef LPCRITICAL_SECTION Mutex_t; 00100 00101 // Platform specific conditional variable type 00102 typedef struct 00103 { 00104 // Number of waiting threads 00105 int waitersCount; 00106 // Serialize access to waitersCount 00107 CRITICAL_SECTION waitersCountLock; 00108 // Semaphore used to queue up threads waiting for the condition to 00109 // become signaled 00110 HANDLE queue; 00111 // An auto-reset event used during broadcasting to wait for all the 00112 // threads to wake up and be released from the queue 00113 HANDLE waitersDone; 00114 // Keeps track of whether we are broadcasting or signaling. This allows 00115 // for optimization if just signaling. 00116 bool wasBroadcast; 00117 } ConditionInfo_t; 00118 00119 typedef ConditionInfo_t* ConditionVar_t; 00120 //typedef void* ConditionVar_t; 00121 struct NonRecursiveMutexLockState 00122 { 00123 DWORD thread_id; 00124 NativeMutex_t* pmutex; 00125 }; 00126 00127 } // end namespace BLOCXX_NAMESPACE 00128 00129 #endif 00130 00131 #endif // #ifndef BLOCXX_THREAD_TYPES_HPP_ 00132