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Copy pathKTimestamp.cpp
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55 lines (46 loc) · 1.6 KB
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#include "KTimestamp.h"
#include <sys/time.h>
#include <stdio.h>
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
using namespace kb;
// static_assert(sizeof(Timestamp) == sizeof(int64_t), "Timestamp is same size as int64_t");
string Timestamp::toString() const
{
char buf[32] = {0};
int64_t seconds = microSecondsSinceEpoch_ / kMicroSecondsPerSecond;
int64_t microseconds = microSecondsSinceEpoch_ % kMicroSecondsPerSecond;
snprintf(buf, sizeof(buf) - 1, "%" PRId64 ".%06" PRId64 "", seconds, microseconds);
return buf;
}
string Timestamp::toFormattedString(bool showMicroseconds) const
{
char buf[64] = {0};
time_t seconds = static_cast<time_t>(microSecondsSinceEpoch_ / kMicroSecondsPerSecond);
struct tm tm_time;
gmtime_r(&seconds, &tm_time);
if (showMicroseconds)
{
int microseconds = static_cast<int>(microSecondsSinceEpoch_ % kMicroSecondsPerSecond);
snprintf(buf, sizeof(buf), "%4d%02d%02d %02d:%02d:%02d.%06d",
tm_time.tm_year + 1900, tm_time.tm_mon + 1, tm_time.tm_mday,
tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec,
microseconds);
}
else
{
snprintf(buf, sizeof(buf), "%4d%02d%02d %02d:%02d:%02d",
tm_time.tm_year + 1900, tm_time.tm_mon + 1, tm_time.tm_mday,
tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec);
}
return buf;
}
Timestamp Timestamp::now()
{
struct timeval tv;
gettimeofday(&tv, NULL);
int64_t seconds = tv.tv_sec;
return Timestamp(seconds * kMicroSecondsPerSecond + tv.tv_usec);
}