ThreadImpl.hpp

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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, 
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00025 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
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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_THREADIMPL_HPP_INCLUDE_GUARD_
00039 #define BLOCXX_THREADIMPL_HPP_INCLUDE_GUARD_
00040 #include "blocxx/BLOCXX_config.h"
00041 #include "blocxx/Types.hpp"
00042 #include "blocxx/ThreadTypes.hpp"
00043 
00044 // The classes and functions defined in this file are not meant for general
00045 // use, they are internal implementation details.  They may change at any time.
00046 
00047 namespace BLOCXX_NAMESPACE
00048 {
00049 
00050 /*----------------------------------
00051  * Definitions to support threading.
00052  -----------------------------------*/
00053 #define BLOCXX_THREAD_FLG_JOINABLE 0x000000001
00054 typedef Int32 (*ThreadFunction)(void*);
00061 namespace ThreadImpl
00062 {
00074    BLOCXX_COMMON_API int createThread(Thread_t& handle, ThreadFunction func,
00075       void* funcParm, UInt32 threadFlags);
00081    BLOCXX_COMMON_API void destroyThread(Thread_t& handle);
00088    inline bool sameThreads(const volatile Thread_t& handle1,
00089       const volatile Thread_t& handle2)
00090    {
00091    #if defined(BLOCXX_WIN32)
00092       return handle1 == handle2;
00093    #elif BLOCXX_HAVE_PTHREAD_H
00094       return pthread_equal(handle1, handle2);
00095    #endif
00096    }
00104    BLOCXX_COMMON_API void exitThread(Thread_t& handle, Int32 rval);
00108    inline Thread_t currentThread()
00109    {
00110 #if defined(BLOCXX_WIN32)
00111       return GetCurrentThreadId();
00112 #else
00113       return pthread_self();
00114 #endif
00115    }
00116 
00117 
00126    BLOCXX_COMMON_API UInt64 thread_t_ToUInt64(Thread_t thr);
00127 
00136    BLOCXX_COMMON_API int setThreadDetached(Thread_t& handle);
00145    BLOCXX_COMMON_API int joinThread(Thread_t& handle, Int32& rval);
00150    BLOCXX_COMMON_API void yield();
00156    BLOCXX_COMMON_API void sleep(UInt32 milliSeconds);
00160    inline BLOCXX_DEPRECATED void memoryBarrier()
00161    {
00162       // DEC/COMPAQ/HP Alpha
00163       #if defined(__alpha)
00164       __asm__ __volatile__("mb");
00165       #endif
00166       
00167       // Intel Itanium
00168       #if defined(__ia64__) || defined(__ia64)
00169       __asm__ __volatile__("mf");
00170       #endif
00171    }
00199    BLOCXX_COMMON_API void testCancel();
00200    BLOCXX_COMMON_API void saveThreadInTLS(void* pTheThread);
00201    BLOCXX_COMMON_API void sendSignalToThread(Thread_t threadID, int signo);
00202    BLOCXX_COMMON_API void cancel(Thread_t threadID);
00203 };
00204 
00205 } // end namespace BLOCXX_NAMESPACE
00206 
00207 #endif

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