void reset_queue()
{
int i;
for(i = 0; i < sendQ.highSize; i++)
free(sendQ.high[i].message);
for(i = 0; i < sendQ.lowSize; i++)
free(sendQ.low[i].message);
setup_queue();
}
// Callback from device manager
void qd_queue_init_data(struct e10k_binding *b, struct capref registers,
uint64_t macaddr)
{
struct frame_identity frameid = { .base = 0, .bits = 0 };
errval_t err;
void *virt;
INITDEBUG("idc_queue_init_data\n");
mac_address = macaddr;
// Map device registers
invoke_frame_identify(registers, &frameid);
err = vspace_map_one_frame_attr(&virt, 1 << frameid.bits, registers,
VREGION_FLAGS_READ_WRITE_NOCACHE, NULL, NULL);
assert(err_is_ok(err));
// Initialize mackerel device
d = malloc(sizeof(*d));
#ifndef VF
e10k_initialize(d, virt);
#else
e10k_vf_initialize(d, virt);
#endif
// Initialize queue
setup_queue();
}
// Callback from device manager
void qd_queue_memory_registered(struct e10k_binding *b)
{
initialized = 1;
hwqueue_initialized();
// Register queue with queue_mgr library
#ifndef LIBRARY
ethersrv_init((char*) service_name, qi, get_mac_addr_fn, terminate_queue_fn,
transmit_pbuf_list_fn, find_tx_free_slot_count_fn,
handle_free_tx_slot_fn, RXBUFSZ, register_rx_buffer_fn,
find_rx_free_slot_count_fn);
#else
ethernetif_backend_init((char*) service_name, qi, get_mac_addr_fn, terminate_queue_fn,
transmit_pbuf_list_fn, find_tx_free_slot_count_fn,
handle_free_tx_slot_fn, RXBUFSZ, register_rx_buffer_fn,
find_rx_free_slot_count_fn);
#endif
}
int main() {
Queue* queue = setup_queue();
printf("%d\n", queue->length);
enqueue(queue, 1);
printf("%d\n", queue->length);
enqueue(queue, 2);
printf("%d\n", queue->length);
int* a = dequeue(queue);
int* b = dequeue(queue);
printf("%d\n", *a);
printf("%d\n", *b);
print_queue(queue);
free(queue);
return 0;
}
/* main: this is supposedly required for a C program
* 1. Create threads to handle clients
* 2. Add clients from the file
* 3. Join threads and leave
* Returns 0 if everything was done correctly.
*/
int main(int argc, char** argv)
{
int num_queries, num_threads;
long i;
pthread_t * tids;
if(argc != 3)
{
fprintf(stderr,
"USAGE: %s [input_file_path] [num_threads]\n",
argv[0]);
exit(1);
}
// do preliminary work (database, queue, etc.)
setup_queue();
populate_database("TwitterDB.txt");
num_threads = atoi(argv[2]);
sem_init(&queue_access, 0, 1);
sem_init(&empty, 0, 0);
sem_init(&served, 0, 1);
sem_init(&full, 0, num_threads);
// create threads to handle clients
tids = calloc(num_threads, sizeof(pthread_t));
for(i = 0; i < num_threads; i++)
{
if(pthread_create(&tids[i], NULL, serveClients, (void *)(i + 1)))
{
perror("main: could not create create thread");
exit(1);
}
}
// populate queue
num_queries = buildQueue(argv[1]);
while(num_served != num_queries);
// cancel threads
for (i = 0; i < num_threads; i++)
{
if(pthread_cancel(tids[i]))
{
perror("main: could not join thread");
exit(1);
}
}
// clean up
destroy_database();
destroy_queue();
free(tids);
printf("Finished handling all clients\n");
return 0;
}
