/******************** v_cose() ********************************
transmit all the packets not yet transmitted, then close the connection
***************************************************************/
int v_close(int socket) {
socket_t *so = fd_lookup(socket);
if(so == NULL) {
printf(_RED_"v_close: socket %d does not exist"_NORMAL_"\n", socket);
return -EBADF;
}
#ifdef DEBUG
printf(_BLUE_"v_close: socket %d "_NORMAL_"\n", socket);
#endif
//while(!CB_EMPTY(socket->sendw->buf)){
// v_shutdown(socket, SHUTDOWN_READ);
//}
if(so->state == LISTENING) return 0;
//this hack doesn't work sometimes
//for example, retransmission queue being empty doesn't always mean
//that everything has been sent (sent packet might have been in the process of
//being queued for retransmission)
seg_t *el;
int count;
DL_COUNT(so->sendw->retrans_q_head,el,count);
int sum = count + CB_SIZE(so->sendw->buf) + CB_SIZE(so->recvw->buf)
+ so->recvw->oor_q_size;
int newsum = sum;
//TODO shut down sending window
while(!CB_EMPTY(so->sendw->buf) || !CB_EMPTY(so->recvw->buf)
|| count || so->recvw->oor_q_size){
#ifdef DEBUG
if(sum != newsum){
printf(_BRED_"V_CLOSED STALLED-----------\n[retransq %d], [sendwindow %d], [recvwindow %d], [oorq %d]\n"_NORMAL_,
count, CB_SIZE(so->sendw->buf), CB_SIZE(so->recvw->buf), so->recvw->oor_q_size);
sum = newsum;
}
#endif
newsum = count + CB_SIZE(so->sendw->buf) + CB_SIZE(so->recvw->buf)
+ so->recvw->oor_q_size;
DL_COUNT(so->sendw->retrans_q_head,el,count);
}
//TODO memory stuff
printf(_BRED_"---CANCELING THREAD, DELETING SOCKET---\n"_NORMAL_);
v_shutdown(socket, SHUTDOWN_BOTH);
pthread_cancel(so->th);
HASH_DELETE(hh1, fd_list, so);
return 0;
}
int32_t queue_size(queue_t *queue)
{
int32_t count = 0;
struct queueitem *tmp;
lock_queue(queue);
DL_COUNT(queue->list,tmp,count);
portable_mutex_unlock(&queue->mutex);
return count;
}
