75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
#include "session/Timer.hpp"
|
|
#include <time.h>
|
|
#include <strings.h>
|
|
|
|
using namespace std;
|
|
|
|
long long Timer::fixedTime;
|
|
bool Timer::useRealTime(true);
|
|
|
|
long long Timer::now()
|
|
{
|
|
if (!useRealTime) return fixedTime;
|
|
struct timespec ts;
|
|
clock_gettime(Timer::getClock(), &ts);
|
|
return static_cast<long long>(ts.tv_sec) * 1000 + static_cast<long long>(ts.tv_nsec) / 1000000;
|
|
}
|
|
|
|
clockid_t Timer::getClock()
|
|
{
|
|
return CLOCK_REALTIME;
|
|
}
|
|
|
|
long long Timer::msDiff(long long compareTime)
|
|
{
|
|
return now() - compareTime;
|
|
}
|
|
|
|
void Timer::setTime(const string& time)
|
|
throw (ParameterSyntaxException)
|
|
{
|
|
const char* format = "%Y%m%d.%H%M%S";
|
|
if (time == "")
|
|
{
|
|
// Revert to wall time for later calls.
|
|
useRealTime = true;
|
|
return;
|
|
}
|
|
|
|
// On success, strptime() should return a pointer to the address of the
|
|
// null char.
|
|
|
|
struct tm tm;
|
|
bzero(&tm, sizeof(tm));
|
|
// We do not scan for the 'daylight saving setting', so explicitly
|
|
// undefine it.
|
|
tm.tm_isdst = -1;
|
|
time_t t;
|
|
const char* res = strptime(time.c_str(), format, &tm);
|
|
if (res == NULL || res != time.c_str() + time.size() || (t = mktime(&tm)) == -1)
|
|
{
|
|
throw ParameterSyntaxException(
|
|
"Time '" + time + "' not in form 'YYYYMMDD.hhmmss' or is an illegal time.");
|
|
}
|
|
|
|
// mktime is in seconds, Date in milli.
|
|
fixedTime = static_cast<long long>(t) * 1000L;
|
|
useRealTime = false;
|
|
}
|
|
|
|
struct timespec Timer::msOffset2abs(long long msOffset)
|
|
{
|
|
const unsigned int ms_per_sec = 1000;
|
|
const unsigned int ns_per_ms = 1000;
|
|
|
|
struct timespec now;
|
|
struct timespec until;
|
|
|
|
clock_gettime(Timer::getClock(), &now);
|
|
until.tv_sec = now.tv_sec + msOffset / ms_per_sec;
|
|
until.tv_nsec = now.tv_nsec + msOffset * ns_per_ms;
|
|
|
|
return until;
|
|
}
|
|
|