/*
* Prints the probe with the specified name. There
* are certain conditions that this method wont print
* anything:
*
* 1) No such probe exists.
* 2) The probe has not been closed.
*/
void printProbe(string s)
{
TimeProbe* tp;
if (probes[s] == 0)
return;
tp = probes[s];
if (tp->getStatus() != TimeProbe::CLOSED)
return;
timeval* t1 = tp->getStart();
timeval* t2 = tp->getEnd();
if (t1->tv_usec > t2->tv_usec)
{
t2->tv_usec += 1000000;
t2->tv_sec--;
}
timeval lapsed;
lapsed.tv_usec = t2->tv_usec - t1->tv_usec;
lapsed.tv_sec = (int) (t2->tv_sec - t1->tv_sec);
cout << s << ": ";
printf("Time elapsed: %d.%06dsec\n", (int) lapsed.tv_sec,(int) lapsed.tv_usec);
}
/**
* Open the probe with the specified name and measures
* the time value at that point in the program's path
* of execution.
*
* If a probe for that name already exists, this method
* does nothing.
*/
void openProbe(string s)
{
TimeProbe* tp;
if (probes[s] == 0)
{
tp = new TimeProbe();
probes[s] = tp;
}
else
{
tp = probes[s];
}
if (tp->getStatus() != TimeProbe::INACTIVE)
return;
tp->setStatus(TimeProbe::OPEN);
timeval* tv = new timeval();
struct timezone tz;
gettimeofday(tv, &tz);
tp->setStart(tv);
}
/**
* Closes the probe for the given name. If the probe
* is not open or if the probe is already closed this
* method does nothing.
*/
void closeProbe(string s)
{
TimeProbe* tp;
if (probes[s] == 0)
return;
tp = probes[s];
if (tp->getStatus() != TimeProbe::OPEN)
return;
timeval* tv = new timeval();
struct timezone tz;
gettimeofday(tv, NULL);
tp->setEnd(tv);
tp->setStatus(TimeProbe::CLOSED);
}