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#include "base/timer.hpp"
#include "base/assert.hpp"
#include "base/macros.hpp"
#include "base/timegm.hpp"
#include "std/target_os.hpp"
#include "std/systime.hpp"
#include "std/cstdio.hpp"
#include "std/sstream.hpp"
#include "std/iomanip.hpp"
#include "std/algorithm.hpp"
namespace my
{
Timer::Timer(bool start/* = true*/)
{
if (start)
Reset();
}
// static
double Timer::LocalTime()
{
#ifdef OMIM_OS_WINDOWS_NATIVE
FILETIME ft;
GetSystemTimeAsFileTime(&ft);
uint64_t val = ft.dwHighDateTime;
val <<= 32;
val += ft.dwLowDateTime;
return val / 10000000.0;
#else
timeval tv;
::gettimeofday(&tv, 0);
return tv.tv_sec + tv.tv_usec / 1000000.0;
#endif
}
string FormatCurrentTime()
{
time_t t = time(NULL);
string s(ctime(&t));
replace(s.begin(), s.end(), ' ', '_');
ASSERT_GREATER(s.size(), 1, ());
s.resize(s.size() - 1);
return s;
}
uint32_t GenerateTimestamp(int year, int month, int day)
{
return (year - 100) * 10000 + (month + 1) * 100 + day;
}
uint32_t TodayAsYYMMDD()
{
time_t rawTime = time(NULL);
tm const * const pTm = gmtime(&rawTime);
CHECK(pTm, ("Can't get current date."));
return GenerateTimestamp(pTm->tm_year, pTm->tm_mon, pTm->tm_mday);
}
string TimestampToString(time_t time)
{
tm * t = gmtime(&time);
char buf[21] = { 0 };
#ifdef OMIM_OS_WINDOWS
sprintf_s(buf, ARRAY_SIZE(buf), "%04d-%02d-%02dT%02d:%02d:%02dZ", t->tm_year + 1900,
t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
#else
::snprintf(buf, ARRAY_SIZE(buf), "%04d-%02d-%02dT%02d:%02d:%02dZ", t->tm_year + 1900,
t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
#endif
return buf;
}
namespace
{
bool IsValid(tm const & t)
{
/// @todo Funny thing, but "00" month is accepted as valid in get_time function.
/// Seems like a bug in the std library.
return (t.tm_mday >= 1 && t.tm_mday <= 31 &&
t.tm_mon >= 0 && t.tm_mon <= 11);
}
}
time_t StringToTimestamp(string const & s)
{
// Return current time in the case of failure
time_t res = INVALID_TIME_STAMP;
if (s.size() == 20)
{
// Parse UTC format: 1970-01-01T00:00:00Z
tm t{};
istringstream ss(s);
ss >> get_time(&t, "%Y-%m-%dT%H:%M:%SZ");
if (!ss.fail() && IsValid(t))
res = base::TimeGM(t);
}
else if (s.size() == 25)
{
// Parse custom time zone offset format: 2012-12-03T00:38:34+03:30
tm t1{}, t2{};
char sign;
istringstream ss(s);
ss >> get_time(&t1, "%Y-%m-%dT%H:%M:%S") >> sign >> get_time(&t2, "%H:%M");
if (!ss.fail() && IsValid(t1))
{
time_t const tt = base::TimeGM(t1);
// Fix timezone offset
if (sign == '-')
res = tt + t2.tm_hour * 3600 + t2.tm_min * 60;
else if (sign == '+')
res = tt - t2.tm_hour * 3600 - t2.tm_min * 60;
}
}
return res;
}
HighResTimer::HighResTimer(bool start/* = true*/)
{
if (start)
Reset();
}
void HighResTimer::Reset()
{
m_start = high_resolution_clock::now();
}
uint64_t HighResTimer::ElapsedNano() const
{
return duration_cast<nanoseconds>(high_resolution_clock::now() - m_start).count();
}
uint64_t HighResTimer::ElapsedMillis() const
{
return duration_cast<milliseconds>(high_resolution_clock::now() - m_start).count();
}
double HighResTimer::ElapsedSeconds() const
{
return duration_cast<duration<double>>(high_resolution_clock::now() - m_start).count();
}
}
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