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common.c
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common.c
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/**
* Copyright 2015 University of Southern California
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <time.h>
#include <sys/time.h>
#include "common.h"
char *timestamp() {
struct timeval tv;
gettimeofday(&tv, NULL);
time_t t = tv.tv_sec;
struct tm tm;
localtime_r(&t, &tm);
static char ts[32];
snprintf(ts, 32, "%04d-%02d-%02d %02d:%02d:%02d.%06d",
1900 + tm.tm_year, 1 + tm.tm_mon, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec, (int)tv.tv_usec);
return ts;
}