//! @brief rpc server core function
//! @param *p The argument received from the client
//! @return The result of the argument process
char* register_on_server(request_t *p)
{
static response_t response; // A structure that handle the response
if(strlen(p->name) <= MAX_NAME_SIZE && p->port > 0 && p-> port < 65535)
{ /* We received a valid connection attempt */
if(nb_clients < MAX_CLIENTS)
{ /* We can handle more clients */
printf("Received advertisement from client \"%s\" at port %d.\n", p->name, p->port);
/* Storing information received from client */
strcpy(clients[nb_clients].name, p->name);
clients[nb_clients].port = p->port;
/* compiling result */
response.nb_clients = ++nb_clients;
response.port = p->port;
/* was it the last client we were waiting for? */
if(nb_clients == MAX_CLIENTS)
advertise_all();
}
else
{ /* We can't handle any more client */
fprintf(stderr, "Cannot handle any more client : \"%s\" at port %d.\n", p->name, p->port);
response.nb_clients = 0;
response.port = 100;
}
}
else
{ /* We received an invalid connection attempt */
fprintf(stderr, "Invalid arguments received from client \"%s\" at port %d.\n", p->name, p->port);
response.nb_clients = 0;
response.port = 200;
}
return ((char*)&response);
}
static void communities_discovery(n2n_sn_t *sss, time_t nowTime)
{
if (nowTime - sss->start_time < N2N_SUPER_DISCOVERY_INTERVAL)
{
return;
}
if (sss->snm_discovery_state == N2N_SNM_STATE_DISCOVERY)
{
struct comm_info *tmp_list = sss->communities.list_head; /* queried communities */
int comm_num = comm_list_size(sss->communities.persist);
/* add new communities */
struct comm_info *p = tmp_list;
sss->communities.list_head = sss->communities.persist;
while (comm_num < N2N_MAX_COMM_PER_SN && p != NULL)
{
if (p->sn_num < N2N_MIN_SN_PER_COMM)
{
/* add new community without setting supernodes */
if (add_new_community(&sss->communities, p->community_name, NULL))
comm_num++;
}
p = p->next;
}
clear_comm_list(&tmp_list);
/* send ADV to all */
advertise_all(sss);
sss->snm_discovery_state = N2N_SNM_STATE_READY;
}
}
