homework-jianmu/src/util/inc/ttime.h

66 lines
1.9 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TDENGINE_TTIME_H
#define TDENGINE_TTIME_H
#ifdef __cplusplus
extern "C" {
#endif
#include "os.h"
#include "taosdef.h"
//@return timestamp in second
int32_t taosGetTimestampSec();
//@return timestamp in millisecond
static FORCE_INLINE int64_t taosGetTimestampMs() {
struct timeval systemTime;
gettimeofday(&systemTime, NULL);
return (int64_t)systemTime.tv_sec * 1000L + (uint64_t)systemTime.tv_usec / 1000;
}
//@return timestamp in microsecond
static FORCE_INLINE int64_t taosGetTimestampUs() {
struct timeval systemTime;
gettimeofday(&systemTime, NULL);
return (int64_t)systemTime.tv_sec * 1000000L + (uint64_t)systemTime.tv_usec;
}
/*
* @return timestamp decided by global conf variable, tsTimePrecision
* if precision == TSDB_TIME_PRECISION_MICRO, it returns timestamp in microsecond.
* precision == TSDB_TIME_PRECISION_MILLI, it returns timestamp in millisecond.
*/
static FORCE_INLINE int64_t taosGetTimestamp(int32_t precision) {
if (precision == TSDB_TIME_PRECISION_MICRO) {
return taosGetTimestampUs();
} else {
return taosGetTimestampMs();
}
}
int32_t getTimestampInUsFromStr(char* token, int32_t tokenlen, int64_t* ts);
int32_t taosParseTime(char* timestr, int64_t* time, int32_t len, int32_t timePrec, int8_t dayligth);
void deltaToUtcInitOnce();
#ifdef __cplusplus
}
#endif
#endif // TDENGINE_TTIME_H