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timestamp caching of last second

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gabime 2014-02-06 00:52:58 +02:00
parent 52dc317cfb
commit 6400b1887e
1 changed files with 21 additions and 13 deletions
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32
src/formatters.cpp
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@ -1,23 +1,31 @@
#include "stdafx.h" #include "stdafx.h"
#include <memory.h>
#include "c11log/formatters/formatters.h" #include "c11log/formatters/formatters.h"
#include "c11log/level.h" #include "c11log/level.h"
static thread_local std::tm last_tm;
static thread_local char timestamp_cache[64];
void c11log::formatters::format_time(const c11log::formatters::timepoint& tp, std::ostream &dest) void c11log::formatters::format_time(const c11log::formatters::timepoint& tp, std::ostream &dest)
{ {
std::tm tm = details::os::localtime(std::chrono::system_clock::to_time_t(tp)); auto tm = details::os::localtime(std::chrono::system_clock::to_time_t(tp));
//get ms // Cache timestamp string of last second
//auto duration = tp.time_since_epoch(); if(memcmp(&tm, &last_tm, sizeof(tm)))
//int millis = static_cast<int>(std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000); {
sprintf(timestamp_cache, "[%d-%02d-%02d %02d:%02d:%02d]", tm.tm_year + 1900,
tm.tm_mon + 1,
char buf[64]; tm.tm_mday,
auto size = sprintf(buf, "[%d-%02d-%02d %02d:%02d:%02d]", tm.tm_hour,
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_min,
tm.tm_hour, tm.tm_min, tm.tm_sec); tm.tm_sec);
last_tm = tm;
dest.write(buf, size); }
dest << timestamp_cache;
} }
void c11log::formatters::format_time(std::ostream& dest) void c11log::formatters::format_time(std::ostream& dest)