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 00037 #ifndef BLOCXX_THREAD_COUNTER_HPP_INCLUDE_GUARD_ 00038 #define BLOCXX_THREAD_COUNTER_HPP_INCLUDE_GUARD_ 00039 #include "blocxx/BLOCXX_config.h" 00040 #include "blocxx/Types.hpp" 00041 #include "blocxx/NonRecursiveMutex.hpp" 00042 #include "blocxx/Condition.hpp" 00043 #include "blocxx/IntrusiveReference.hpp" 00044 #include "blocxx/IntrusiveCountableBase.hpp" 00045 #include "blocxx/ThreadDoneCallback.hpp" 00046 00047 namespace BLOCXX_NAMESPACE 00048 { 00049 00050 // Note: Do not inline any functions in these classes, the code must 00051 // be contained in the main library, if a loadable library contains any, 00052 // it will cause a race-condition that may segfault the cimom. 00053 class BLOCXX_COMMON_API ThreadCounter : public IntrusiveCountableBase 00054 { 00055 public: 00056 ThreadCounter(Int32 maxThreads); 00057 ~ThreadCounter(); 00058 // Throws TimeoutException in case of timeout 00059 void incThreadCount(UInt32 sTimeout, UInt32 usTimeout); 00060 void decThreadCount(); 00061 Int32 getThreadCount(); 00062 // Throws TimeoutException in case of timeout 00063 void waitForAll(UInt32 sTimeout, UInt32 usTimeout); 00064 void setMax(Int32 maxThreads); 00065 private: 00066 Int32 m_maxThreads; 00067 Int32 m_runCount; 00068 NonRecursiveMutex m_runCountGuard; 00069 Condition m_runCountCondition; 00070 // noncopyable 00071 ThreadCounter(ThreadCounter const&); 00072 ThreadCounter& operator=(ThreadCounter const&); 00073 }; 00074 00075 class BLOCXX_COMMON_API ThreadCountDecrementer : public ThreadDoneCallback 00076 { 00077 public: 00078 ThreadCountDecrementer(ThreadCounterRef const& x); 00079 virtual ~ThreadCountDecrementer(); 00080 private: 00081 virtual void doNotifyThreadDone(Thread *); 00082 00083 #ifdef BLOCXX_WIN32 00084 #pragma warning (push) 00085 #pragma warning (disable: 4251) 00086 #endif 00087 00088 ThreadCounterRef m_counter; 00089 00090 #ifdef BLOCXX_WIN32 00091 #pragma warning (pop) 00092 #endif 00093 00094 // noncopyable 00095 ThreadCountDecrementer(ThreadCountDecrementer const&); 00096 ThreadCountDecrementer& operator=(ThreadCountDecrementer const&); 00097 }; 00098 BLOCXX_EXPORT_TEMPLATE(BLOCXX_COMMON_API, IntrusiveReference, ThreadCounter); 00099 00100 } // end namespace BLOCXX_NAMESPACE 00101 00102 #endif