linux 常用函数

        struct timezone tz;

        struct timeval stHandleHistoryRecordFactlyStartTime;

        struct timeval stHandleHistoryRecordFactlyEndTime;

        gettimeofday(&stHandleHistoryRecordFactlyStartTime,&tz);

       dosomething();//处理一些函数的时间

        gettimeofday(&stHandleHistoryRecordFactlyEndTime,&tz);

       int iHandleHistoryRecordFactlyTime = (stHandleHistoryRecordFactlyEndTime.tv_sec - stHandleHistoryRecordFactlyStartTime.tv_sec)*1000 + (stHandleHistoryRecordFactlyEndTime.tv_usec - stHandleHistoryRecordFactlyStartTime.tv_usec)/1000;

    则 iHandleHistoryRecordFactlyTime就是间隔时间