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using namespace std;
#include <stdlib.h>
#include "duration.h"
#define TIMEVAL_TO_DOUBLE(XX) (double((XX).tv_sec) + double((XX).tv_usec) / 1000000.0)
#include "conf.h"
#include <unistd.h>
#include <sys/resource.h>
#include <sys/time.h>
#ifdef HAVE_ALGORITHM
#include <algorithm>
#else
#ifdef HAVE_ALGO
#include <algo>
#else
#include <algo.h>
#endif
#endif
Duration_Base::Duration_Base()
: m_start(0.0)
, m_max(0.0)
{
}
double Duration_Base::start()
{
getTime(&m_start);
return m_start;
}
double Duration_Base::stop()
{
double tv;
getTime(&tv);
double ret;
ret = tv - m_start;
m_max = max(m_max, ret);
return ret;
}
bool Duration::getTime(double *tv)
{
TIMEVAL_TYPE t;
if (gettimeofday(&t, static_cast<struct timezone *>(NULL)) == -1)
return true;
*tv = TIMEVAL_TO_DOUBLE(t);
return false;
}
bool CPU_Duration::getTime(double *tv)
{
struct rusage res_usage;
getrusage(RUSAGE_SELF, &res_usage);
*tv = TIMEVAL_TO_DOUBLE(res_usage.ru_utime) + TIMEVAL_TO_DOUBLE(res_usage.ru_stime);
return false;
}
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