C++ 定時器任務類實現

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#ifndef __TIMERTASK_H_#define __TIMERTASK_H_/* 定時器任務基類 */#include "asr_taskinterface.h"#include "comontype.h"class BaseTimerTask{public:    BaseTimerTask():m_uiTvSec(0),m_uiTvUsec(0){}    virtual ~BaseTimerTask(){}public:    //設定定時器間隔    void setTimer(UINT uiTvSec,UINT uiTvUsec = 0);    //啟動定時器    void startTimer(UINT uiTvSec,UINT uiTvUsec = 0);    //週期性任務    virtual void intervalTask() = 0;private:    UINT m_uiTvSec;           //秒    UINT m_uiTvUsec;          //微秒};#endif

#include "timertask.h"#include <sys/select.h>#include <sys/time.h>#include <sys/types.h>#include <unistd.h>#include <errno.h>/********************************************************BaseTimerTask*********************************************************//********************************************************   Func Name: setTimerDate Created: 2018-7-30 Description: 設定定時器       Input: uiTvSec：設定間隔多少秒             uiTvUsec：設定間隔多少微秒      Output:       Return:      Caution: *********************************************************/void BaseTimerTask::setTimer(UINT uiTvSec,UINT uiTvUsec){    m_uiTvSec = uiTvSec;    m_uiTvUsec = uiTvUsec;}/********************************************************   Func Name: setTimerDate Created: 2018-7-30 Description: 開啟定時器       Input: uiTvSec：設定間隔多少秒             uiTvUsec：設定間隔多少微秒      Output:       Return:      Caution: *********************************************************/void BaseTimerTask::startTimer(UINT uiTvSec,UINT uiTvUsec){    int infds = 0;    struct timeval stTimeval;    m_uiTvSec = uiTvSec;    m_uiTvUsec = uiTvUsec;    do     {        stTimeval.tv_sec = (long)m_uiTvSec;        stTimeval.tv_usec = (long)m_uiTvUsec;        //select()每次返回後都會清空struct timeval參數        infds = select(0, NULL, NULL, NULL, &stTimeval);        //執行任務        intervalTask();    } while ((0 == infds) || (infds < 0 && EINTR == errno));}

#ifndef __TESTTIMER_H_#define __TESTTIMER_H_/* 測試定時器任務類 */#include "timertask.h"class CPrintTimer:public BaseTimerTask{public:    virtual void intervalTask();};#endif

#include <iostream>#include "testtimer.h"/********************************************************CPrintTimer*********************************************************//********************************************************   Func Name: intervalTaskDate Created: 2018-7-30 Description: 執行任務       Input:       Output:       Return:      Caution: *********************************************************/void CPrintTimer::intervalTask(){    std::cout << "praise chaos" << std::endl;}

 

C++ 定時器任務類實現