c++定时器实现

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随便写了一个简单定时器

#pragma once#include <Windows.h>#include <list>#include <iostream>using namespace std;struct tTIMER{unsigned nID;//定时器IDunsigned nTimeElapce;//定时器运行间隔(ms)unsigned nTimeCreate;//定时器创建时间unsigned nTimeLastRun;//定时器上次运行时间bool bStatus;//定时器状态，true启用，false停用tTIMER(){nID = -1;nTimeCreate = 0;nTimeElapce = 0;nTimeLastRun = 0;bStatus = true;}bool operator < (const tTIMER &timer) const{return this->nTimeElapce + this->nTimeLastRun < timer.nTimeElapce + timer.nTimeLastRun;}};typedef list<tTIMER> listTimer;typedef list<tTIMER>::iterator itListTimer;class CTimer{public:CTimer();~CTimer();public://设置定时器virtual void SetTimer(unsigned nTimerID, unsigned nTimerMS, int nParam = 0, char* p = NULL);//删除定时器virtual void KillTimer(unsigned nTimeerID);//定时器处理函数virtual int OnTimer(int nID) = 0;protected:static DWORD WINAPI TimerThread(LPVOID lpParam);private:listTimer m_ltTimeList;//定时器列表bool m_bRun;};

#include "Timer.h"#include <process.h>CTimer::CTimer():m_bRun(true){}CTimer::~CTimer(){m_bRun = false;m_ltTimeList.clear();}void CTimer::SetTimer(unsigned nTimerID, unsigned nTimerMS, int nParam /* = 0 */, char* p /* = NULL */){if (nTimerMS == 0){return;}tTIMER tTimer;tTimer.bStatus = true;tTimer.nID = nTimerID;unsigned nTimeNow = GetTickCount();tTimer.nTimeCreate = nTimeNow;tTimer.nTimeLastRun = nTimeNow;tTimer.nTimeElapce = nTimerMS;m_ltTimeList.push_back(tTimer);if (m_ltTimeList.size() == 1){m_bRun = true;HANDLE handle = CreateThread(NULL, 0, TimerThread, this, 0, 0);CloseHandle(handle);}}void CTimer::KillTimer(unsigned nTimeerID){for (auto it = m_ltTimeList.begin(); it != m_ltTimeList.end(); ++it){if (nTimeerID == it->nID){it->bStatus = false;break;}}}DWORD WINAPI CTimer::TimerThread(LPVOID lpParam){CTimer *pTimer = (CTimer*)lpParam;while (pTimer->m_bRun){if (pTimer->m_ltTimeList.size() < 1){break;}//定时器排序pTimer->m_ltTimeList.sort();unsigned nTimeNow = GetTickCount();for (itListTimer it = pTimer->m_ltTimeList.begin(); it != pTimer->m_ltTimeList.end(); ++it){if (!it->bStatus){it = pTimer->m_ltTimeList.erase(it);continue;}if (nTimeNow >= it->nTimeLastRun + it->nTimeElapce){it->nTimeLastRun = nTimeNow;pTimer->OnTimer(it->nID);}else{break;}}Sleep(0);}return 0;}int CTimer::OnTimer(int nID){return 0;}

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