void *thread_start(void *arg) {
printf("thread filha antes do monitor\n");
sthread_monitor_enter(mon);
printf("thread filha dentro do monitor, antes do signal\n");
sthread_monitor_signal(mon);
printf("thread filha dentro do monitor, depois do signal\n");
sthread_monitor_exit(mon);
printf("thread filha depois do monitor\n");
return NULL;
}
void* thread_consumer() {
req_t req_d;
int ressz, req_i;
snfs_msg_res_t res;
while(1) {
sthread_monitor_enter(mon);
// get request from queue
while (!available_reqs) sthread_monitor_wait(mon);
req_d = get_req();
available_reqs--;
sthread_monitor_signal(mon);
sthread_monitor_exit(mon);
// clean response
memset(&res,0,sizeof(res));
// find request handler
req_i = -1;
for (int i = 0; i < NUM_REQ_HANDLERS; i++) {
if (req_d->req.type == Service[i].type) {
req_i = i;
break;
}
}
// serve the request
if (req_i == -1) {
res.status = RES_UNKNOWN;
ressz = sizeof(res) - sizeof(res.body);
printf("[snfs_srv] unknown request.\n");
} else {
Service[req_i].handler(&(req_d->req),req_d->reqsz,&res,&ressz);
}
// send response to client
srv_send_response(&res,ressz,&(req_d->cliaddr),req_d->clilen);
// free stuff
free(req_d); req_d = NULL;
// force request processing
sthread_yield();
}
}
void *thread1(void *arg)
{
int i = *(int*)arg;
printf("thread %d started\n", i);
sthread_monitor_enter(mon1);
printf("thread %d enter mon1\n", i);
sthread_monitor_signal(mon1);
printf("thread %d signal mon1\n", i);
sthread_monitor_exit(mon1);
printf("thread %d exit mon1\n", i);
sthread_monitor_enter(mon2);
printf("thread %d enter mon2\n", i);
sthread_monitor_wait(mon2);
printf("thread %d wait mon2\n", i);
sthread_monitor_exit(mon2);
printf("end %i\n", *(int*)arg);
return 0;
}
