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#include "time_util.h"
#include <sys/time.h>
#include <sys/select.h>
double CurrentMicroSecond()
{
timeval now;
gettimeofday(&now, 0);
return now.tv_sec + now.tv_usec / 1000000.0;
}
double SleepTimeInterval(double interval_start_time, double interval)
{
const double remaining (interval_start_time + interval - CurrentMicroSecond());
if (remaining > 0) {
timeval timeout;
timeout.tv_sec = remaining;
timeout.tv_usec = (remaining - timeout.tv_sec) * 1000000;
select(0, 0, 0, 0, &timeout);
}
return CurrentMicroSecond();
}
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