net_values_by_name.c File Reference

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Macros
#define	IFNAME   "lo"
	Prints the values of several net events specified by names. More...
#define	PINGADDR   "127.0.0.1"
#define	NUM_EVENTS   4

Functions
int	main (int argc, char **argv)

Macro Definition Documentation

IFNAME

#define IFNAME   "lo"

Author

Jose Pedro Oliveira

test case for the linux-net component

Definition at line 24 of file net_values_by_name.c.

NUM_EVENTS

#define NUM_EVENTS   4

Definition at line 27 of file net_values_by_name.c.

PINGADDR

#define PINGADDR   "127.0.0.1"

Definition at line 25 of file net_values_by_name.c.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 29 of file net_values_by_name.c.

{
    int i, retval;
    int EventSet = PAPI_NULL;
    char *event_name[NUM_EVENTS] = {
        IFNAME ":rx:bytes",
        IFNAME ":rx:packets",
        IFNAME ":tx:bytes",
        IFNAME ":tx:packets",
    };
    int event_code[NUM_EVENTS] = { 0, 0, 0, 0};
    long long event_value[NUM_EVENTS];
    int total_events=0;

    /* Set TESTS_QUIET variable */
    tests_quiet( argc, argv );

    /* PAPI Initialization */
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
        test_fail(__FILE__, __LINE__,"PAPI_library_init failed\n",retval);
    }

    if (!TESTS_QUIET) {
        printf("Net events by name\n");
    }

    /* Map names to codes */
    for ( i=0; i<NUM_EVENTS; i++ ) {
        retval = PAPI_event_name_to_code( event_name[i], &event_code[i]);
        if ( retval != PAPI_OK ) {
            test_fail( __FILE__, __LINE__, "PAPI_event_name_to_code", retval );
        }

        total_events++;
    }

    /* Create and populate the EventSet */
    EventSet = PAPI_NULL;

    retval = PAPI_create_eventset( &EventSet );
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_create_eventset()", retval);
    }

    retval = PAPI_add_events( EventSet, event_code, NUM_EVENTS);
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_add_events()", retval);
    }

    retval = PAPI_start( EventSet );
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_start()", retval);
    }

    /* generate some traffic
     * the operation should take more than one second in order
     * to guarantee that the network counters are updated */
    retval = system("ping -c 4 " PINGADDR " > /dev/null");
    if (retval < 0) {
        test_fail(__FILE__, __LINE__, "Unable to start ping", retval);
    }

    retval = PAPI_stop( EventSet, event_value );
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_start()", retval);
    }

    if (!TESTS_QUIET) {
        for ( i=0; i<NUM_EVENTS; i++ ) {
            printf("%#x %-24s = %lld\n",
                event_code[i], event_name[i], event_value[i]);
        }
    }

    retval = PAPI_cleanup_eventset( EventSet );
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_cleanup_eventset()", retval);
    }

    retval = PAPI_destroy_eventset( &EventSet );
    if (retval != PAPI_OK) {
        test_fail(__FILE__, __LINE__, "PAPI_destroy_eventset()", retval);
    }

    test_pass( __FILE__ );

    return 0;
}

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