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PAPI_get_overflow_event_index(3) PAPI PAPI_get_overflow_event_index(3)


PAPI_get_overflow_event_index -

converts an overflow vector into an array of indexes to overflowing events


Detailed Description

@param EventSet

an integer handle to a PAPI event set as created by PAPI_create_eventset @param overflow_vector
a vector with bits set for each counter that overflowed.
This vector is passed by the system to the overflow handler routine. @param *array
an array of indexes for events in EventSet.
No more than *number indexes will be stored into the array. @param *number
On input the variable determines the size of the array.
On output the variable contains the number of indexes in the array. @retval PAPI_EINVAL
One or more of the arguments is invalid. This could occur if the overflow_vector is empty (zero), if the array or number pointers are NULL, if the value of number is less than one, or if the EventSet is empty. @retval PAPI_ENOEVST The EventSet specified does not exist. @par Examples

void handler(int EventSet, void *address, long_long overflow_vector, void *context){
int Events[4], number, i;
int total = 0, retval;
printf("Overflow #%d0 Handler(%d) Overflow at %p! vector=%#llx0,
total, EventSet, address, overflow_vector);
number = 4;
retval = PAPI_get_overflow_event_index(EventSet,
overflow_vector, Events, &number);
if(retval == PAPI_OK)
for(i=0; i<number; i++) printf("Event index[%d] = %d", i, Events[i]);} *

@see PAPI_overflow


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Thu Feb 27 2020 Version