wow-time文件说明
- 项目地址：https://github.com/wow-iot3/wow_linux_eval
- 本文件的功能主要用于处理时间操作，主要涉及时间信息获取(普通格式与cp56格式)、设置时间、格式转换、获取时间戳、获取毫秒数；
获取时间信息
int wow_time_get_cp56(CP56Time2a_T *ptInfo) { int ret = -1; time_t utc; struct timeval tv; struct timezone tz; struct tm *now; ret = time(&utc); CHECK_RET_VAL_P_A(ret != -1,-1,"time faild\n"); now = localtime(&utc); CHECK_RET_VAL_P_A(now,-1,"localtime faild\n"); //获取毫秒 ret = gettimeofday(&tv, &tz); CHECK_RET_VAL_P_A(ret == 0,-1,"gettimeofday faild\n"); ptInfo->year = now->tm_year + 1900-2000; ptInfo->mon = now->tm_mon + 1; ptInfo->mon_day = now->tm_mday; ptInfo->hour = now->tm_hour; ptInfo->min = now->tm_min; time_t msec = now->tm_sec*1000 + tv.tv_usec/1000; ptInfo->milli_sec_h = (msec >> 0x08) & 0x00FF; ptInfo->milli_sec_l = msec & 0x00FF; return 0; }
设置时间
int wow_time_set_cp56(CP56Time2a_T *ptInfo) { time_t timep; struct tm tm; struct timeval tv; time_t msec = (ptInfo->milli_sec_h << 8) + ptInfo->milli_sec_l; tm.tm_sec = msec/1000; tm.tm_min = ptInfo->min; tm.tm_hour = ptInfo->hour; tm.tm_mday = ptInfo->mon_day; tm.tm_mon = ptInfo->mon - 1; // 月份从0开始，所以需要减去1 tm.tm_year = ptInfo->year + 2000 - 1900;// 年份需要减去1900 tm.tm_isdst = -1; // 表示不考虑夏令时 timep = mktime(&tm); tv.tv_sec = timep; tv.tv_usec = 0; int ret = settimeofday(&tv, NULL); CHECK_RET_VAL_P_A(ret == 0,-1,"settimeofday faild\n"); return 0; }
将毫秒转换为固定格式
int wow_time_msec_to_cp56(uint64_t nMsec,CP56Time2a_T* ptInfo) { int i = 0; CHECK_RET_VAL_P(ptInfo,-PARAM_INPUT_STRUCT_IS_NULL,"param input struct invalid!\n"); memset(ptInfo,0,sizeof(CP56Time2a_T)); ptInfo->milli_sec_l = (uint8_t)(nMsec%60000); ptInfo->milli_sec_h = (uint8_t)((nMsec%60000)>>8); uint64_t sec_time = nMsec/60000; ptInfo->min=(uint8_t)(sec_time % 60);//计算当分前钟数 sec_time = sec_time/60; ptInfo->hour=(uint8_t)(sec_time % 24);//计算当前小时数 sec_time = sec_time/24; //以4年为基准计算 ptInfo->year = (uint16_t)(sec_time/1461L)*4 + 1970 - 2000; sec_time = sec_time%1461; //校正闰年影响的年份 while(1){ int days = 365; if ((ptInfo->year & 3) == 0) days = 366; if (sec_time < days) break; ptInfo->year++; //计算当前年份 sec_time -= days; } sec_time = sec_time+1; //ptInfo->week = (uint8_t)((sec_time+4)%7); //校正闰年的月份 if((ptInfo->year & 3) == 0) { for(i = 12;i > 0;i--){ if(gs_mon_days[1][i-1] < sec_time){ ptInfo->mon = (uint8_t)i; //计算当前月份 ptInfo->mon_day = (uint8_t)(sec_time - gs_mon_days[1][i-1]); //计算当前日份 break; } } }else{ for(i = 12;i > 0;i--){ if(gs_mon_days[0][i-1] < sec_time){ ptInfo->mon = (uint8_t)i; //计算当前月份 ptInfo->mon_day = (uint8_t)(sec_time - gs_mon_days[0][i-1]); //计算当前日份 break; } } } return 0; } void wow_time_msec_to_stamp(uint64_t pMsec,char pcBuff[20]) { struct tm now_tm; time_t now_sec = pMsec/1000; localtime_r(&now_sec, &now_tm); strftime(pcBuff, 20, "%Y-%m-%d %H:%M:%S", &now_tm); }
将固定格式转换为毫秒
int wow_time_cp56_to_msec(CP56Time2a_T* ptInfo,uint64_t* pMsec) { int i = 0; CHECK_RET_VAL_P(ptInfo,-PARAM_INPUT_STRUCT_IS_NULL,"param input struct invalid!\n"); uint64_t msec = 0; // 计算当前年秒数 msec = (ptInfo->year +2000 - 1970) * 365 * 24 * 3600; for(i = 1970; i < ptInfo->year +2000; i++) { if(rtc_data_leap(i)) { msec += 24 * 3600; } } //计算当前月秒数 msec += gs_mon_days[rtc_data_leap(ptInfo->year)][ptInfo->mon-1]* 24 * 3600; //计算当前日秒数 msec += (ptInfo->mon_day - 1) * 24 * 3600; //计算当前时间段秒数 msec += ptInfo->hour * 3600 + ptInfo->min * 60; ///< !!!根据需求添加 //msec -= SEC_TIME_ZONE; *pMsec= msec*1000 + ptInfo->milli_sec_h*256 +ptInfo->milli_sec_l; return 0; }
获取当前毫秒数
int64_t wow_time_get_msec() { struct timeval tv = {0}; gettimeofday(&tv, NULL); int64_t sec = tv.tv_sec; int64_t msec = sec * 1000 + tv.tv_usec / 1000; return msec; }
