// Helper function to keep code base small
void gport_ima_bench(struct rusage *_start,
struct rusage *_finish,
unsigned long int *_num_iterations,
unsigned int _n)
{
// initialize port
gport p = gport_create(2*_n-1,sizeof(int));
int w[_n]; // external buffer for writing
int r[_n]; // external buffer for reading
unsigned long int i;
// start trials:
// write to port, read from port
getrusage(RUSAGE_SELF, _start);
for (i=0; i<(*_num_iterations); i++) {
// producer: write data to port from external buffer
gport_produce(p,(void*)w,_n);
// consumer: read data from port to external buffer
gport_consume(p,(void*)r,_n);
}
getrusage(RUSAGE_SELF, _finish);
*_num_iterations *= _n;
gport_destroy(p);
}
void producer_handler ( void *_ptr )
{
gport p = (gport) _ptr;
unsigned int i, j, n=0;
int w[PRODUCER_SIZE];
int eom;
for (i=0; i<10; i++) {
for (j=0; j<PRODUCER_SIZE; j++)
w[j] = n++;
printf(" producer waiting for %u samples...\n", PRODUCER_SIZE);
eom = gport_produce(p,(void*)w,PRODUCER_SIZE);
if (eom) {
printf("producer received eom\n");
break;
}
printf(" producer waiting %u ms\n", PRODUCER_TIMER);
usleep(PRODUCER_TIMER*1000);
}
// give consumer time to finish reading buffer, then broadcast eom
usleep(300000);
gport_signal_eom(p);
printf(" producer exiting thread\n");
pthread_exit(0); // exit thread
}
