UnixThreads.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:27k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- //This is used to turn off threads in libc5 builds.
- #ifdef _UNIX_THREADS_SUPPORTED
- #include "hxtypes.h" //for UINT32
- #include "hxresult.h" //for HX_RESULT
- #include <errno.h>
- #include "UnixThreads.h"
- #include <signal.h> //for SIGKILL
- #include "hxassert.h" //for HX_ASSERT
- #include "microsleep.h"
- #include "hxmsgs.h" //for HXMSG_ASYNC_TIMER message.
- #include "hxtick.h" //for GetTickCount()
- //=================================================================
- // In this section here include the OS specific headerfiles for
- // each implementation.
- //=================================================================
- #if defined( _LINUX ) || defined(_HPUX) || defined(_MAC_UNIX)
- #include <pthread.h>
- #include <semaphore.h>
- #include "pthreadthreads.h"
- #endif
- #if defined( _SOLARIS )
- #include <synch.h>
- #include <thread.h>
- #include "solaristhreads.h"
- #endif
- #if defined( _IRIX )
- #endif
- #if defined( _AIX )
- #endif
- //=======================================================================
- //
- // HXUnixThread
- // ------------------
- //
- //=======================================================================
- HXUnixThread::HXUnixThread()
- : m_threadID(0),
- m_messageQue(),
- m_pCond(NULL),
- m_pCondLock(NULL)
- {
- //Create the condition with its associated mutex.
- //Do NOT delete the mutex that the cond makes for us....
- HXUnixCondition::MakeCondition(m_pCond, m_pCondLock );
- HX_ASSERT( m_pCondLock && m_pCond);
- }
- HXUnixThread::~HXUnixThread()
- {
- if( m_threadID != 0 )
- {
- //XXXgfw Had to get rid of this. Some threads are destroyed on their own thread.
- //HX_ASSERT( "Thread has not been joined! Memory/mutex leaks????n" == NULL );
- //We can try to cancel here but it won't work!
- //The thread may not even honor the cancel request. If it does and has not
- //set up cancelation/clean-up routine you better hope that it doesn't have
- //any mutexes locked or resources open!!! Just don't do it.
- }
- //Clean up message que.
- while( !m_messageQue.IsEmpty() )
- {
- HXThreadMessage* pTmp = (HXThreadMessage *)(m_messageQue.RemoveHead());
- HX_DELETE( pTmp );
- }
- HX_DELETE( m_pCond );
- m_pCondLock = NULL;
- }
- HX_RESULT HXUnixThread::MakeThread(HXThread*& pThread )
- {
- #if defined( _LINUX ) || defined (_HPUX) || defined(_MAC_UNIX)
- pThread = new HXPthreadThread();
- #elif defined( _SOLARIS )
- pThread = new HXSolarisThread();
- #else
- HX_ASSERT( "No unix thread for this platform" == NULL );
- #endif
- if(pThread == NULL)
- {
- HX_ASSERT( 0 );
- return HXR_OUTOFMEMORY;
- }
-
- return HXR_OK;
- }
- //ulCreationFlags is ignored. We can't suspend pthreads and that is the only
- //flag possible right now.
- HX_RESULT HXUnixThread::CreateThread( void*(pfExecFunc(void*)), void* pArg, ULONG32 ulCreationFlags)
- {
- HX_RESULT retVal = HXR_OK;
-
- HX_ASSERT( m_threadID==0 );
- if( m_threadID != 0)
- {
- retVal = HXR_UNEXPECTED;
- }
- else
- {
- if( _thread_create( m_threadID, pfExecFunc, pArg ) != HXR_OK )
- {
- retVal = HXR_FAIL;
- m_threadID = 0;
- }
- }
- return retVal;
- }
- HX_RESULT HXUnixThread::Exit(UINT32 unExitCode)
- {
- //Make sure that only the thread that was created it calling the exit
- //routine. If the parent thread wants to kill it maybe we should have
- //a Kill method or something.
- if( 0 == m_threadID )
- {
- //Thread has already gone. Just return.
- return HXR_UNEXPECTED;
- }
-
- if( m_threadID != GetCurrentThreadID() )
- {
- //Ok, because of the way winthrd.cpp does it, this call also
- //acts as a 'pthread_join' when the calling thread isn't the
- //m_threadID.
-
- //Also, it looks like this method isn't set up to look at the
- //return value of the thread. We could return HXR_FAIL is it
- //is anything except 0 but for now just throw it away.
- JoinThread();
- }
- else
- {
- _thread_exit( unExitCode );
- }
-
- return HXR_OK;
- }
- HX_RESULT HXUnixThread::SetPriority( UINT32 ulPriority)
- {
- //XXXGFW not supported yet.
- // struct sched_param stThreadParams;
- // int nPolicy = 0;
- // int nRet = -1;
- // HX_ASSERT( m_threadID );
- // if( m_threadID != 0)
- // {
- // nPolicy = SCHED_OTHER;
- // stThreadParams.sched_priority = (int)ulPriority;
-
- // nRet = pthread_setschedparam( m_threadID, nPolicy, &stThreadParams );
- // }
-
- // return nRet==0 ? HXR_OK : HXR_FAIL;
- return HXR_OK;
- }
- //XXXgfw not tested yet!!!!!!! ...but should work. :)
- HX_RESULT HXUnixThread::GetPriority( UINT32& ulPriority)
- {
- //XXXGFW not supported yet.....
- // struct sched_param stThreadParams;
- // int nPolicy = 0;
- // int nRet = -1;
-
- // HX_ASSERT( m_threadID );
-
- // if( m_threadID != 0)
- // {
- // nRet = pthread_getschedparam( m_threadID, &nPolicy, &stThreadParams );
- // ulPriority = stThreadParams.sched_priority;
- // }
-
- // return nRet==0 ? HXR_OK : HXR_FAIL;
- return HXR_OK;
- }
- HX_RESULT HXUnixThread::YieldTimeSlice()
- {
- microsleep(1);
- return HXR_OK;
- }
- HX_RESULT HXUnixThread::GetThreadId(UINT32& ulThreadId)
- {
- ulThreadId = m_threadID;
- return HXR_OK;
- }
- ULONG32 HXUnixThread::GetCurrentThreadID()
- {
- return _thread_self();
- }
- //Cancels the thread that was created.
- HX_RESULT HXUnixThread::CancelThread()
- {
- HX_ASSERT( "This isn't portable. Don't use it" == NULL );
- if( 0 == m_threadID )
- {
- return HXR_UNEXPECTED;
- }
- _thread_cancel(m_threadID);
- return HXR_OK;
- }
- //Must wait for our child thread to exit and return the ret code.
- ULONG32 HXUnixThread::JoinThread()
- {
- ULONG32 ulRetVal = 0;
- if( 0 == m_threadID || GetCurrentThreadID() == m_threadID )
- {
- return HXR_UNEXPECTED;
- }
- ulRetVal = _thread_join( m_threadID );
- //Thread has exited and we are done.
- m_threadID = 0;
-
- return ulRetVal;
- }
- HX_RESULT HXUnixThread::Suspend()
- {
- HX_ASSERT( "HXUnixThread::Suspend is not implemented yet." == NULL );
- return HXR_FAIL;
- }
- HX_RESULT HXUnixThread::Resume()
- {
- HX_ASSERT( "HXUnixThread::Resume is not implemented yet." == NULL );
- return HXR_FAIL;
- }
- HX_RESULT HXUnixThread::PostMessage(HXThreadMessage* pMsg, void* pWindowHandle)
- {
- HX_RESULT retVal = HXR_OK;
- //Assert that we don't use pWindowHandle.
- HX_ASSERT( pWindowHandle == NULL );
-
- //To mimic the windows PostMessage we must COPY the pMsg and put
- //it on our que. pMsg is going to go out of scope most likely
- if( NULL != pMsg )
- {
- HXThreadMessage *pMsgTmp = new HXThreadMessage(pMsg);
- if( pMsgTmp == NULL )
- {
- retVal = HXR_OUTOFMEMORY;
- }
- else
- {
- //Lock the mutex protecting the message que.
- m_pCondLock->Lock();
- m_messageQue.AddTail((void*)pMsgTmp);
-
- //If we were empty the the GetMessage thread could have been waiting
- //on us to post. Signal it.
- m_pCond->Signal();
- m_pCondLock->Unlock();
- }
- }
-
- return retVal;
- }
- HX_RESULT HXUnixThread::GetMessage( HXThreadMessage* pMsg,
- UINT32 ulMsgFilterMin,
- UINT32 ulMsgFilterMax)
- {
- HX_RESULT retVal = HXR_OK;
- //assert that ulMsgFilterMax/Min is zero as we don't support it yet.
- HX_ASSERT( ulMsgFilterMax == 0 && ulMsgFilterMin == 0 );
- HX_ASSERT( pMsg );
-
- //We must pop the next message, COPY it into pMsg and delete our copy.
- if( pMsg != NULL )
- {
- //Get access
- m_pCondLock->Lock();
- //If the que is empty we need to block and wait.
- while( m_messageQue.IsEmpty() )
- {
- m_pCond->Wait();
- }
- if( !m_messageQue.IsEmpty())
- {
- HXThreadMessage* pMsgTmp = (HXThreadMessage*)m_messageQue.RemoveHead();
- pMsg->m_ulMessage = pMsgTmp->m_ulMessage;
- pMsg->m_pParam1 = pMsgTmp->m_pParam1;
- pMsg->m_pParam2 = pMsgTmp->m_pParam2;
- pMsg->m_pPlatformSpecificData = pMsgTmp->m_pPlatformSpecificData;
-
- //free it.
- HX_DELETE( pMsgTmp );
- }
- else
- {
- HX_ASSERT( "que panic" == NULL );
- }
- m_pCondLock->Unlock();
- }
-
- return retVal;
- }
- HX_RESULT HXUnixThread::PeekMessageMatching( HXThreadMessage* pMsg,
- HXThreadMessage* pMatch,
- BOOL bRemoveMessage )
- {
- HX_RESULT retVal = HXR_OK;
-
- HX_ASSERT( pMsg );
- HX_ASSERT( pMatch );
-
- if( pMsg != NULL && pMatch!=NULL )
- {
- //Protect the que.
- m_pCondLock->Lock();
- if( !m_messageQue.IsEmpty() )
- {
- HXThreadMessage* pMsgTmp = NULL;
- //Loop throught the messages and find a matching
- //one.
- BOOL bSkipMessage = (pMatch->m_ulMessage==0);
- BOOL bSkipParam1 = (pMatch->m_pParam1==NULL);
- BOOL bSkipParam2 = (pMatch->m_pParam2==NULL);
- BOOL bSkipPlatform = (pMatch->m_pPlatformSpecificData==NULL);
- CHXSimpleList::Iterator i;
-
- for( i=m_messageQue.Begin(); i!=m_messageQue.End(); ++i)
- {
- pMsgTmp = (HXThreadMessage*)(*i);
- //Does it match?
- if( bSkipMessage || pMatch->m_ulMessage==pMsgTmp->m_ulMessage )
- if( bSkipParam1 || pMatch->m_pParam1==pMsgTmp->m_pParam1 )
- if( bSkipParam2 || pMatch->m_pParam2==pMsgTmp->m_pParam2 )
- if( bSkipPlatform || pMatch->m_pPlatformSpecificData==pMsgTmp->m_pPlatformSpecificData )
- break;
- }
- //Did we find a match?
- if( i != m_messageQue.End())
- {
- //We found one!
- pMsg->m_ulMessage = pMsgTmp->m_ulMessage;
- pMsg->m_pParam1 = pMsgTmp->m_pParam1;
- pMsg->m_pParam2 = pMsgTmp->m_pParam2;
- pMsg->m_pPlatformSpecificData = pMsgTmp->m_pPlatformSpecificData;
-
- //Only free it if we removed it from the queue.
- if( bRemoveMessage )
- {
- //XXXgfw That has to be a better way than this. We
- //have the iterator up above. How do you delete with
- //one.
- LISTPOSITION listpos = m_messageQue.Find(pMsgTmp);
- HX_ASSERT( listpos );
- if(listpos)
- {
- m_messageQue.RemoveAt(listpos);
- }
- HX_DELETE( pMsgTmp );
- }
- }
- else
- {
- retVal=HXR_FAIL;
- }
- }
- else
- {
- //There was no message to get
- retVal=HXR_FAIL;
- }
- m_pCondLock->Unlock();
- }
- return retVal;
- }
- HX_RESULT HXUnixThread::PeekMessage( HXThreadMessage* pMsg,
- UINT32 ulMsgFilterMin,
- UINT32 ulMsgFilterMax,
- BOOL bRemoveMessage
- )
- {
- HX_RESULT retVal = HXR_OK;
- //assert that ulMsgFilterMax/Min is zero as we don't support it yet.
- HX_ASSERT( ulMsgFilterMax == 0 && ulMsgFilterMin == 0 );
- HX_ASSERT( pMsg );
-
- //We must pop the next message, COPY it into pMsg and delete our copy.
- if( pMsg != NULL )
- {
- //Protect the que.
- m_pCondLock->Lock();
- if( !m_messageQue.IsEmpty() )
- {
- HXThreadMessage* pMsgTmp = NULL;
- //Do we romove the message or peek at it?
- if( bRemoveMessage )
- {
- pMsgTmp = (HXThreadMessage*)m_messageQue.RemoveHead();
- }
- else
- {
- pMsgTmp = (HXThreadMessage*)m_messageQue.GetHead();
- }
-
- if( pMsgTmp != NULL )
- {
- pMsg->m_ulMessage = pMsgTmp->m_ulMessage;
- pMsg->m_pParam1 = pMsgTmp->m_pParam1;
- pMsg->m_pParam2 = pMsgTmp->m_pParam2;
- pMsg->m_pPlatformSpecificData = pMsgTmp->m_pPlatformSpecificData;
-
- //Only free it if we removed it from the queue.
- if( bRemoveMessage )
- HX_DELETE( pMsgTmp );
- }
- else
- {
- HX_ASSERT( "que panic" == NULL );
- }
- }
- else
- {
- //There was no message to get
- retVal=HXR_FAIL;
- }
- m_pCondLock->Unlock();
- }
- return retVal;
- }
- HX_RESULT HXUnixThread::DispatchMessage(HXThreadMessage* pMsg)
- {
- HX_ASSERT( "HXUnixThread::DispatchMessage is not implemented yet." == NULL );
- return HXR_FAIL;
- }
- //=======================================================================
- //
- // HXUnixMutex
- // ------------------
- //
- //=======================================================================
- HXUnixMutex::HXUnixMutex()
- {
- }
-
- HXUnixMutex::~HXUnixMutex()
- {
- }
- HX_RESULT HXUnixMutex::MakeMutex( HXMutex*& pMutex )
- {
- #if defined( _LINUX ) || defined(_HPUX) || defined(_MAC_UNIX)
- pMutex = new HXPthreadMutex();
- #elif defined( _SOLARIS )
- pMutex = new HXSolarisMutex();
- #else
- HX_ASSERT( "No unix mutex for this platform" == NULL );
- #endif
- if(pMutex == NULL)
- {
- HX_ASSERT( 0 );
- return HXR_OUTOFMEMORY;
- }
-
- return HXR_OK;
- }
- HX_RESULT HXUnixMutex::Lock()
- {
- return _Lock();
- }
-
- HX_RESULT HXUnixMutex::Unlock()
- {
- return _Unlock();
- }
-
- HX_RESULT HXUnixMutex::Trylock()
- {
- return _TryLock();
- }
- //=======================================================================
- //
- // HXUnixSemaphore
- // ------------------
- //
- //=======================================================================
- HXUnixSemaphore::HXUnixSemaphore(UINT32 unInitialCount)
- : m_unInitialCount(unInitialCount)
- {
- }
- HXUnixSemaphore::~HXUnixSemaphore()
- {
- }
- HX_RESULT HXUnixSemaphore::MakeSemaphore(HXUnixSemaphore*& pSem)
- {
- #if defined( _LINUX ) || defined(_HPUX)
- pSem = new HXPthreadSemaphore();
- #elif defined(_MAC_UNIX)
- pSem = new HXPthreadMacSemaphore();
- #elif defined( _SOLARIS )
- pSem = new HXSolarisSemaphore();
- #else
- HX_ASSERT( "No unix semaphore for this platform" == NULL );
- #endif
- if(pSem == NULL)
- {
- HX_ASSERT(0);
- return HXR_OUTOFMEMORY;
- }
-
- return HXR_OK;
- }
-
- HX_RESULT HXUnixSemaphore::Post()
- {
- return _Post();
- }
- HX_RESULT HXUnixSemaphore::Wait()
- {
- return _Wait();
- }
- HX_RESULT HXUnixSemaphore::TryWait()
- {
- return _TryWait();
- }
- HX_RESULT HXUnixSemaphore::GetValue( int* pnCount)
- {
- return _GetValue( pnCount );
- }
- //=======================================================================
- //
- // HXUnixEvent
- // ------------------
- //
- //=======================================================================
- HXUnixEvent::HXUnixEvent(const char* pEventName, BOOL bManualReset)
- : m_bIsManualReset( bManualReset ),
- m_bEventIsSet(FALSE),
- m_pCondLock(NULL),
- m_pCond(NULL)
- {
- //
- // NOTE: Because of the way the windows Cond vars work we have:
- //
- // bManualReset==1 Once we signal once, all other signal/wait
- // calls are noops. All threads awake.
- // bManualReset==0 Once signaled we retain until someone Waits.
- // Once someone waits, only one thread wakes up
- // and the signal is reset.
- //
- //Create the condition with its associated mutex.
- //Do NOT delete the mutex that the cond makes for us....
- HXUnixCondition::MakeCondition(m_pCond, m_pCondLock );
- HX_ASSERT( m_pCondLock && m_pCond);
- }
- HXUnixEvent::~HXUnixEvent()
- {
- //Do NOT delete the mutex that the cond makes for us....
- HX_DELETE( m_pCond );
- m_pCondLock = NULL;
- }
- HX_RESULT HXUnixEvent::SignalEvent()
- {
- //Lock it all down.
- m_pCondLock->Lock();
- //Whether or not this is manual reset, set the state.
- m_bEventIsSet = TRUE;
- //Signal the event depending on what type it is.
- if( m_bIsManualReset )
- {
- //Manual reset, wake up all threads. All waits become noops
- //until the event is reset.
- m_pCond->Broadcast();
- }
- else
- {
- m_pCond->Signal();
- }
-
- //Unlock it and go.
- m_pCondLock->Unlock();
- return HXR_OK;
- }
- HX_RESULT HXUnixEvent::Wait( UINT32 uTimeoutPeriod )
- {
- HX_RESULT res = HXR_OK;
-
- m_pCondLock->Lock();
- //Check to see if this event has already been signaled.
- if( m_bEventIsSet )
- {
- //If we are not manual reset and we are signaled. reset the
- //signaled flag before returning.
- if( !m_bIsManualReset )
- {
- m_bEventIsSet = FALSE;
- }
- m_pCondLock->Unlock();
- return HXR_OK;
- }
-
- //We are not manual reset.
- if(uTimeoutPeriod!=ALLFS)
- {
- //XXXgfw We can be woken up by signals before the event is
- //actually signaled or the time has elapsed. Not sure what to
- //do in that case yet. Since most implementations try to
- //minimize these wakups I will just ignore it for now since we
- //are just using condtionals to mimic Window's events.
- res = m_pCond->TimedWait(uTimeoutPeriod);
- }
- else
- {
- m_pCond->Wait();
- }
- //Now, if we just woke up and the event had been signaled, We need
- //reset the event.
- if( !m_bIsManualReset && m_bEventIsSet )
- {
- m_bEventIsSet = FALSE;
- }
- //Now that we have waited
- m_pCondLock->Unlock();
- return res;
- }
- HX_RESULT HXUnixEvent::ResetEvent()
- {
- m_pCondLock->Lock();
- m_bEventIsSet = FALSE;
- m_pCondLock->Unlock();
- return HXR_OK;
- }
- void* HXUnixEvent::GetEventHandle()
- {
- //XXXgfw This doesn't look like it is used right now. Assuming we
- //just want it to be a unique handle to this event, we can use the
- //this pointer to the cond class we made.
- return (void*)m_pCond;
- }
- //=======================================================================
- //
- // HXUnixCondition
- // ---------------------
- //
- //=======================================================================
- HXUnixCondition::HXUnixCondition()
- {
- };
- HXUnixCondition::~HXUnixCondition()
- {
- };
- HX_RESULT HXUnixCondition::MakeCondition( HXUnixCondition*& pCond,
- HXUnixMutex*& pMutex )
- {
- HX_ASSERT( pMutex==NULL);
-
- #if defined( _LINUX ) && defined(_UNIX_THREADS_SUPPORTED) || defined(_MAC_UNIX)
- pCond = (HXUnixCondition*) new HXPthreadCondition(pMutex);
- #elif defined(_SOLARIS)
- pCond = (HXUnixCondition*) new HXSolarisCondition(pMutex);
- #else
- HX_ASSERT( "No unix condtional for this platform" == NULL );
- #endif
- if(pCond == NULL )
- {
- HX_ASSERT(0);
- return HXR_OUTOFMEMORY;
- }
- HX_ASSERT( pMutex );
- return HXR_OK;
- }
- HX_RESULT HXUnixCondition::Wait()
- {
- HX_RESULT ret;
- ret = _Wait();
- return ret;
- }
- HX_RESULT HXUnixCondition::TimedWait( UINT32 uTimeoutPeriod )
- {
- return _TimedWait(uTimeoutPeriod);
- }
- HX_RESULT HXUnixCondition::Broadcast()
- {
- return _Broadcast();
- }
- HX_RESULT HXUnixCondition::Signal()
- {
- return _Signal();
- }
- //=======================================================================
- //
- // HXUnixAsyncTimer
- // -----------------------
- //
- //=======================================================================
- //Static data initializers
- HXMutex* HXUnixAsyncTimer::m_pmtxMapLock = NULL;
- CHXMapLongToObj HXUnixAsyncTimer::m_mapTimers;
- //Timeouts are in miliseconds.
- HXUnixAsyncTimer::HXUnixAsyncTimer( ULONG32 ulTimeOut, HXThread* pReceivingThread )
- : m_ulTimeOut( ulTimeOut ),
- m_pReceivingThread( pReceivingThread ),
- m_pMessagePump( NULL ),
- m_pMsg(NULL),
- m_pfExecFunc(NULL)
- {
- //Make the message to pump.
- m_pMsg = new HXThreadMessage( HXMSG_ASYNC_TIMER, (void*)m_ulTimeOut, NULL, NULL );
-
- //Start the thread. We have to do this weird casting because
- //the HXThread::MakeThread takes HXThread*&....
- HXThread* pTmp = NULL;
- HXUnixThread::MakeThread(pTmp);
- HX_ASSERT( pTmp );
- m_pMessagePump = (HXUnixThread*)pTmp;
- m_pMessagePump->CreateThread( _ActualMessagePump, (void*)this );
- }
- HXUnixAsyncTimer::HXUnixAsyncTimer( ULONG32 ulTimeOut, TIMERPROC pfExecFunc )
- : m_ulTimeOut( ulTimeOut ),
- m_pReceivingThread(NULL),
- m_pMessagePump(NULL),
- m_pMsg(NULL),
- m_pfExecFunc( pfExecFunc )
- {
- //we need non-null pfExecFunc
- HX_ASSERT( m_pfExecFunc != NULL );
-
- //Start the thread.
- HXThread* pTmp = NULL;
- HXUnixThread::MakeThread(pTmp);
- HX_ASSERT( pTmp );
- m_pMessagePump = (HXUnixThread*)pTmp;
- m_pMessagePump->CreateThread( _ActualMessagePump, (void*)this );
- }
- HXUnixAsyncTimer::~HXUnixAsyncTimer()
- {
- //Tell the message pump to quit.
- HXThreadMessage msgQuit(HXMSG_QUIT, NULL, NULL);
- m_pMessagePump->PostMessage( &msgQuit );
- //Wait for it to stop.
- m_pMessagePump->JoinThread();
- HX_DELETE( m_pMessagePump );
- }
- ULONG32 HXUnixAsyncTimer::GetID()
- {
- ULONG32 ulTmp=0;
- m_pMessagePump->GetThreadId(ulTmp);
- return ulTmp;
- }
- //XXXgfw just to keep the below more readable.
- #define PARG ((HXUnixAsyncTimer*)pArg)
- void* HXUnixAsyncTimer::_ActualMessagePump(void* pArg)
- {
- while(1)
- {
- if( HXR_OK == PARG->m_pMessagePump->PeekMessage(&PARG->m_msgTmp))
- {
- //Got a message. If it is HXMSG_QUIT get our of here.
- if( PARG->m_msgTmp.m_ulMessage == HXMSG_QUIT )
- {
- break;
- }
- }
-
- microsleep( PARG->m_ulTimeOut*1000 );
- if( PARG->m_pMsg != NULL )
- PARG->m_pReceivingThread->PostMessage( PARG->m_pMsg);
- else
- PARG->m_pfExecFunc( 0, 0, PARG->GetID(), GetTickCount() );
- }
- return NULL;
- }
- #undef PARG
- UINT32 HXUnixAsyncTimer::SetTimer(ULONG32 ulTimeOut, HXThread* pReceivingThread )
- {
- if( m_pmtxMapLock == NULL )
- {
- HXMutex::MakeMutex( m_pmtxMapLock );
- HX_ASSERT( m_pmtxMapLock );
- }
-
- //lock it.
- m_pmtxMapLock->Lock();
- ULONG32 ulTimerID = 0;
-
- HX_ASSERT( ulTimeOut != 0 );
- HX_ASSERT( pReceivingThread != NULL );
-
- HXUnixAsyncTimer* pTimer = new HXUnixAsyncTimer(ulTimeOut, pReceivingThread );
- HX_ASSERT( pTimer != NULL );
- if( pTimer != NULL )
- {
- //Add new timer to map.
- ulTimerID = pTimer->GetID();
- m_mapTimers.SetAt( ulTimerID, (void*)pTimer );
- }
-
- //unlock the map.
- m_pmtxMapLock->Unlock();
- return ulTimerID;
- }
- UINT32 HXUnixAsyncTimer::SetTimer(ULONG32 ulTimeOut, TIMERPROC pfExecFunc )
- {
- if( m_pmtxMapLock == NULL )
- {
- HXMutex::MakeMutex( m_pmtxMapLock );
- HX_ASSERT( m_pmtxMapLock );
- }
-
- //lock it.
- m_pmtxMapLock->Lock();
- ULONG32 ulTimerID = 0;
-
- HX_ASSERT( ulTimeOut != 0 );
- HX_ASSERT( pfExecFunc != NULL );
-
- HXUnixAsyncTimer* pTimer = new HXUnixAsyncTimer(ulTimeOut, pfExecFunc );
- HX_ASSERT( pTimer != NULL );
- if( pTimer != NULL )
- {
- //Add new timer to map.
- ulTimerID = pTimer->GetID();
- m_mapTimers.SetAt( ulTimerID, (void*)pTimer );
- }
-
- //unlock the map.
- m_pmtxMapLock->Unlock();
- return ulTimerID;
- }
- BOOL HXUnixAsyncTimer::KillTimer(UINT32 ulTimerID )
- {
- //lock it.
- m_pmtxMapLock->Lock();
- BOOL bRetVal = FALSE;
- void* pTimer = NULL;
- HX_ASSERT( ulTimerID != 0 );
-
- if( m_mapTimers.Lookup( ulTimerID, pTimer ) )
- {
- //Found it.
- bRetVal = TRUE;
- HXUnixAsyncTimer* pTmp = (HXUnixAsyncTimer*)pTimer;
- HX_DELETE(pTmp);
- m_mapTimers.RemoveKey( ulTimerID );
- }
- //unlock the map.
- m_pmtxMapLock->Unlock();
- return bRetVal;
- }
- #endif //_UNIX_THREADS_SUPPORTED