小步慢跑

   1: CreateTimerQueue

   2: DeleteTimerQueueEx

   3:  

   4: CreateTimerQueueTimer

   5: DeleteTimerQueueTimer

   1: #pragma once

   2:  

   3:  

   4: /*

   5:  *    無窗口的定時器方案

   6:  */

   7:  

   8: #include "singleton.h" 

   9:  

  10: typedef tr1::function<void(DWORD dwID,DWORD dwUserData)> TimerFunObj;

  11:  

  12: class CTimerMgr

  13: {

  14: public:

  15:     CTimerMgr(void);

  16:     ~CTimerMgr(void);

  17:  

  18:  

  19: public:

  20:     bool SetTimer(DWORD dwID,DWORD dwElapse,TimerFunObj,DWORD dwUserData);

  21:     bool KillTimer(DWORD dwID);

  22:  

  23: private:

  24:  

  25:     typedef map<DWORD ,HANDLE>  MAP_ID_2_HANDLE;

  26:     MAP_ID_2_HANDLE m_mapTimerID2Handle; //定時器id 映射到定時器的handle

  27:  

  28:     HANDLE m_hTimerQueue;

  29: };

  30:  

  31: typedef Singleton<CTimerMgr> TimerService;

  32:  

  33: struct TCBParam

  34: {

  35:     CTimerMgr*  m_pThis;

  36:     DWORD       m_dwTimerID;

  37:     TimerFunObj m_func;

  38:     DWORD       m_dwUserData;

  39: };

  40: extern void _stdcall  TimerCBProc(PVOID lpParamter,BOOL TimerorWaitFired);

   1: #include "StdAfx.h"

   2: #include "TimerMgr.h"

   3:  

   4:  

   5: CTimerMgr::CTimerMgr(void):m_hTimerQueue(NULL)

   6: {

   7:     m_hTimerQueue = ::CreateTimerQueue();

   8:     VERIFY(NULL != m_hTimerQueue);

   9: }

  10:  

  11:  

  12: CTimerMgr::~CTimerMgr(void)

  13: {

  14:     if (NULL != m_hTimerQueue)

  15:     {

  16:         // INVALID_HANDLE_VALUE:會導致DeleteTimerQueueEx等待所有的timer對應的回調方法完成后再返回

  17:         DeleteTimerQueueEx(m_hTimerQueue,NULL);

  18:     }

  19: }

  20:  

  21: // dwElapse :milliseconds

  22: bool CTimerMgr::SetTimer( DWORD dwID,DWORD dwElapse,TimerFunObj timerfunc,DWORD dwUserData)

  23: {

  24:     VERIFY(NULL != m_hTimerQueue);

  25:     

  26:     TCBParam* ptParam     = new TCBParam;

  27:     ptParam->m_pThis      = this;

  28:     ptParam->m_dwTimerID  = dwID;

  29:     ptParam->m_func       = timerfunc;

  30:     ptParam->m_dwUserData = dwUserData;

  31:  

  32:     HANDLE hTimer = NULL;

  33:     if( 0 != CreateTimerQueueTimer(&hTimer,m_hTimerQueue,(WAITORTIMERCALLBACK)TimerCBProc,(void*)ptParam,dwElapse,0,WT_EXECUTEDEFAULT))

  34:     {

  35:         m_mapTimerID2Handle[dwID] = hTimer;

  36:         return true;

  37:     }

  38:     else //失敗

  39:     {

  40:         delete ptParam;

  41:         ptParam = NULL;

  42:         return false;

  43:     }

  44:  

  45: }

  46:  

  47: bool CTimerMgr::KillTimer( DWORD dwID )

  48: {

  49:     MAP_ID_2_HANDLE::iterator it = m_mapTimerID2Handle.find(dwID);

  50:  

  51:     if (it == m_mapTimerID2Handle.end())//不存在

  52:         return false;

  53:         

  54:     HANDLE hTimer = it->second;

  55:     BOOL bSuc = ( 0 != ::DeleteTimerQueueTimer(m_hTimerQueue,hTimer,NULL) );

  56:  

  57:     if (bSuc )

  58:     {

  59:         m_mapTimerID2Handle.erase(it);

  60:         return true;

  61:     }

  62:     //之前定義的處理函數即將被調用或正在被調用，立刻返回，但系統會在處理函數調用完成后自動刪除這個定時器

  63:     else if (ERROR_IO_PENDING ==  GetLastError())

  64:     {

  65:         m_mapTimerID2Handle.erase(it);

  66:         return true;

  67:     }

  68:     else

  69:     {

  70:         return false;

  71:     }

  72:         

  73:         

  74:     

  75:     

  76: }

  77:  

  78:  

  79: void _stdcall TimerCBProc( PVOID lpParamter,BOOL TimerorWaitFired )

  80: {

  81:     TCBParam* ptParam = (TCBParam*)lpParamter;

  82:     if (NULL == ptParam)

  83:         return;

  84:     CTimerMgr*  pThis      = ptParam->m_pThis;

  85:     DWORD       dwTimerID  = ptParam->m_dwTimerID;

  86:     TimerFunObj funcTimer  = ptParam->m_func;

  87:     DWORD       dwUserData = ptParam->m_dwUserData;

  88:  

  89:     funcTimer(dwTimerID,dwUserData);

  90:     

  91:     delete ptParam;

  92:     ptParam = NULL;

  93: }

   1: class CInvoker

   2: {

   3: public:

   4:     void TimerProc(DWORD dwID,DWORD dwUserData )

   5:     {

   6:         //...

   7:     }

   8: }

   9:  

  10: CInvoker _invoker;

  11: TimerFunObj  proc = tr1::bind(&CInvoker::TimerProc,&_invoker,tr1::placeholders::_1,tr1::placeholders::_2);