PAPI_get_overflow_event_index (3) - Linux Manuals

NAME

PAPI_get_overflow_event_index -

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

SYNOPSIS

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 #%d Handler(%d) Overflow at %p! vector=0x%llx,
        total, EventSet, address, overflow_vector);
        total++;
        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

Author

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