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print error and error summary

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This commit is contained in:
Jeff Hill
2001-05-18 20:03:23 +00:00
parent 83a864997d
commit bf13ffdfe3
2 changed files with 20 additions and 10 deletions
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15
src/libCom/test/epicsEventTest.cpp
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@@ -113,24 +113,29 @@ static void producer(void *arg)
} // extern "C"
static void eventWaitMeasureDelay( const epicsEventId &id, const double & delay )
static double eventWaitMeasureDelayError( const epicsEventId &id, const double & delay )
{
epicsTime beg = epicsTime::getCurrent();
epicsEventWaitWithTimeout ( id, delay );
epicsTime end = epicsTime::getCurrent();
printf ( "epicsEventWaitWithTimeout ( %10f ) timed out after %10f sec\n",
delay, end - beg );
double meas = end - beg;
double error = fabs ( delay - meas );
printf ( "epicsEventWaitWithTimeout ( %10f ) tmo delay err %10f sec\n",
delay, error );
return error;
}
static void eventWaitTest()
{
double errorSum = 0.0;
epicsEventId event = epicsEventMustCreate ( epicsEventEmpty );
for ( int i = 0u; i < 20; i++ ) {
double delay = ldexp ( 1.0 , -i );
eventWaitMeasureDelay ( event, delay );
errorSum += eventWaitMeasureDelayError ( event, delay );
}
eventWaitMeasureDelay ( event, 0.0 );
errorSum += eventWaitMeasureDelayError ( event, 0.0 );
epicsEventDestroy ( event );
printf ( "Average error %f sec\n", errorSum / ( i + 1 ) );
}