计算耗时时间

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/timeb.h>
#include <stdarg.h>

#define _X_ __LINE__,__FILE__,'1'

char * StrTrim(char * pstr);
int    GetDateTime(char * cDate, char * cTime);
void SipWriteLog(const long _line_,const char *_file_,char flag,const char *strFmt, ...);

char sDebugFile[128];

int main(int argc, char ** argv)
{
    char sDate[9], sTime1[10], sTime2[10];

    memset(sDate,0,sizeof(sDate));
    memset(sTime1,0,sizeof(sTime1));

    GetDateTime(sDate,sTime1);
    StrTrim(sDate);
    StrTrim(sTime1);

    memset(sDebugFile, 0, sizeof(sDebugFile));
    sprintf(sDebugFile, "Created_%s_%s.signal", sDate, sTime1);

    int i = -1;
    int j = -1;
    int m = -1;
    SipWriteLog(_X_,"0****************************");
    printf("0****************************\n");
    sleep(2);
    SipWriteLog(_X_,"1****************************");
    printf("1****************************\n");
    for(i=0; i<5000; i++)
    {
        for(j=0; j<1000; j++)
        {
            for(m=0; m<1000; m++)
            {
            }
        }
    }
    /*计算时间间隔*/
    memset(sDate,0,sizeof(sDate));
    memset(sTime2,0,sizeof(sTime2));
    GetDateTime(sDate,sTime2);
    int time_internal=sTime2[4]*10*1000+sTime2[5]*1000+sTime2[6]*100+sTime2[7]*10+sTime2[8] - sTime1[4]*10*1000-sTime1[5]*1000-sTime1[6]*100-sTime1[7]*10-sTime1[8];
    printf("sTime1 = [%s]\n", sTime1);
    printf("sTime2 = [%s]\n", sTime2);
    SipWriteLog(_X_,"sTime1 = [%s]", sTime1);
    SipWriteLog(_X_,"sTime2 = [%s]", sTime2);
    if (time_internal < 0)
    time_internal = time_internal + 60*1000;
    printf("三层for循环耗时 = [%d]毫秒\n", time_internal);
    SipWriteLog(_X_,"三层for循环耗时 = [%d]毫秒", time_internal);

    /*sleep(10);*/
    SipWriteLog(_X_,"2****************************");
    printf("2****************************\n");
    sleep(2);
    SipWriteLog(_X_,"3****************************");
    printf("3****************************\n");
    sleep(2);
    SipWriteLog(_X_,"4****************************");
    printf("4****************************\n");
    sleep(2);
    SipWriteLog(_X_,"5****************************");
    printf("5****************************\n");
    sleep(2);
    SipWriteLog(_X_,"6****************************");
    printf("6****************************\n");
    sleep(2);
    SipWriteLog(_X_,"7****************************");
    printf("7****************************\n");
    sleep(2);
    SipWriteLog(_X_,"8****************************");
    printf("8****************************\n");
    sleep(2);
    SipWriteLog(_X_,"9****************************");
    printf("9****************************\n");
    sleep(5);
    SipWriteLog(_X_,"10****************************");
    printf("10****************************\n");
    sleep(5);
    SipWriteLog(_X_,"11****************************");
    printf("11****************************\n");
    sleep(1);
    SipWriteLog(_X_,"12****************************");
    printf("12****************************\n");
    sleep(1);
    SipWriteLog(_X_,"13****************************");
    printf("13****************************\n");
    sleep(1);
    SipWriteLog(_X_,"14****************************");
    printf("14****************************\n");
    sleep(1);
    SipWriteLog(_X_,"15****************************");
    printf("15****************************\n");

    /*alarm(0);*/
    return 0;
}

char * StrTrim(char * pstr)
{
    if(NULL == pstr)
    {
        return NULL;
    }
    char * phead = pstr;
    char * ptail = pstr + strlen(pstr) - 1;
    while((*phead == ' ')&&(phead < ptail)) phead++;
    while((*ptail == ' ')&&(ptail > phead)) ptail--;
    *(ptail + 1) = '\0';
    memcpy(pstr, phead, sizeof(char)*(ptail - phead + 2));
    return pstr;
}

/***********************************************************
* 函 数 名：GetDateTime()
* 功能描述: 分别获取系统日期时间
* 输入参数：
*            cDate-日期接收缓冲区；
*            cTime-日期接收缓冲区；
* 输出参数：cDate
* 返    回：0 成功
* 流程描述：
* 说明：    返回日期格式：YYYYMMDD
* 修改记录:
* [修改人] [日期] - [描述]
***********************************************************/
int    GetDateTime(char * cDate, char * cTime)
{
    struct tm *    cur;
    time_t    timep;

    struct timeb time_msec;
    unsigned short msec;

    time(&timep);
    cur = localtime(&timep);

    ftime(&time_msec);
    msec=time_msec.millitm;

    sprintf(cDate,"%04d%02d%02d",cur->tm_year+1900,cur->tm_mon+1,cur->tm_mday);
    cDate[8]=0;
    sprintf(cTime,"%02d%02d%02d%03d",cur->tm_hour,cur->tm_min,cur->tm_sec,msec);
    cTime[9]=0;

    return 0;
}


void SipWriteLog(const long _line_,const char *_file_,char flag,const char *strFmt, ...)
{
    char sdate[25];
    va_list ap;
    FILE *fp;
    int filelen;

     fp=fopen(sDebugFile,"a");
     if(fp==NULL) return;
    memset(sdate,0,sizeof(sdate));
    GetDateTime(sdate,sdate+9);
    sdate[8]=' ';

    fprintf(fp, "[%s] [%s][%d] >> ",sdate,_file_,_line_);
    va_start(ap,strFmt);
    vfprintf(fp, strFmt, ap);
    va_end(ap);
    fprintf(fp,"\n");
    fflush(NULL);
    fclose(fp);
    return ;
}