134 lines
2.6 KiB
C
134 lines
2.6 KiB
C
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 2000.
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//
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// File: T I M E R . H
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//
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// Contents: Timer queue helper class
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//
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// Notes:
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//
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// Author: mbend 2 Nov 2000
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "upsync.h"
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#pragma warning(disable : 4355)
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class CTimerQueue
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{
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public:
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~CTimerQueue();
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static CTimerQueue & Instance();
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HRESULT HrInitialize();
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HRESULT HrShutdown(HANDLE hCompletionEvent);
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HRESULT HrGetHandle(HANDLE * phTimerQueue);
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private:
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CTimerQueue();
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CTimerQueue(const CTimerQueue &);
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CTimerQueue & operator=(const CTimerQueue &);
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HANDLE m_hTimerQueue;
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CUCriticalSection m_critSec;
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volatile long m_nRefCount;
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static CTimerQueue s_instance;
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};
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class CTimerBase
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{
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public:
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CTimerBase();
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virtual ~CTimerBase();
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HRESULT HrSetTimer(
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DWORD dwIntervalInMillis);
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HRESULT HrSetTimerInFired(
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DWORD dwIntervalInMillis);
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HRESULT HrDelete(HANDLE hCompletionEvent);
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HRESULT HrResetTimer(
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DWORD dwIntervalInMillis);
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protected:
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virtual void OnExecute() = 0;
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virtual BOOL OnTryToLock() = 0;
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virtual void OnUnlock() = 0;
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private:
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CTimerBase(const CTimerBase &);
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CTimerBase & operator=(const CTimerBase &);
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static void CALLBACK Callback(void * pvParam, BOOLEAN);
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HANDLE m_hTimerQueueTimer;
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CUCriticalSection m_critSec;
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volatile BOOL m_bShutdown;
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protected:
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#ifdef DBG
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long m_nSetTimer;
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long m_nSetTimerSuccess;
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long m_nDeleteTimer;
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long m_nDeleteTimerActual;
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long m_nTimerFiredEnter;
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long m_nTimerFiredExit;
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long m_nCallbackEnter;
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static long s_nCallbackEnter;
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static long s_nCallbackExit;
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#endif // DBG
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};
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template <class Type>
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class CTimer : public CTimerBase
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{
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public:
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CTimer(Type & type) : m_type(type) {}
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~CTimer() {}
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void OnExecute()
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{
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#ifdef DBG
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InterlockedIncrement(&m_nTimerFiredEnter);
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#endif // DBG
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m_type.TimerFired();
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#ifdef DBG
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InterlockedIncrement(&m_nTimerFiredExit);
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#endif // DBG
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}
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BOOL OnTryToLock()
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{
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return m_type.TimerTryToLock();
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}
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void OnUnlock()
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{
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m_type.TimerUnlock();
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}
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private:
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CTimer(const CTimer &);
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CTimer & operator=(const CTimer &);
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Type & m_type;
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};
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inline ULONGLONG ULONGLONG_FROM_FILETIME(FILETIME ft)
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{
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return (*((ULONGLONG *)&(ft)));
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}
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inline FILETIME FILETIME_FROM_ULONGLONG(ULONGLONG ll)
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{
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return (*((FILETIME *)&(ll)));
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}
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VOID
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FileTimeToString(FILETIME FileTime, CHAR *szBuf, INT BufSize);
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