/**
* Threaded part for resolving the IP of a server and querying it.
* @param pntr the NetworkUDPQueryServerInfo.
*/
static void NetworkUDPQueryServerThread(void *pntr)
{
NetworkUDPQueryServerInfo *info = (NetworkUDPQueryServerInfo*)pntr;
NetworkUDPQueryServer(info, true, info->manually);
delete info;
}
DEF_UDP_RECEIVE_COMMAND(Client, PACKET_UDP_MASTER_RESPONSE_LIST)
{
/* packet begins with the protocol version (uint8)
* then an uint16 which indicates how many
* ip:port pairs are in this packet, after that
* an uint32 (ip) and an uint16 (port) for each pair.
*/
ServerListType type = (ServerListType)(p->Recv_uint8() - 1);
if (type < SLT_END) {
for (int i = p->Recv_uint16(); i != 0 ; i--) {
sockaddr_storage addr_storage;
memset(&addr_storage, 0, sizeof(addr_storage));
if (type == SLT_IPv4) {
addr_storage.ss_family = AF_INET;
((sockaddr_in*)&addr_storage)->sin_addr.s_addr = TO_LE32(p->Recv_uint32());
} else {
assert(type == SLT_IPv6);
addr_storage.ss_family = AF_INET6;
byte *addr = (byte*)&((sockaddr_in6*)&addr_storage)->sin6_addr;
for (uint i = 0; i < sizeof(in6_addr); i++) *addr++ = p->Recv_uint8();
}
NetworkAddress addr(addr_storage, type == SLT_IPv4 ? sizeof(sockaddr_in) : sizeof(sockaddr_in6));
addr.SetPort(p->Recv_uint16());
/* Somehow we reached the end of the packet */
if (this->HasClientQuit()) return;
NetworkUDPQueryServer(addr);
}
}
}
/** Requeries the (game) servers we have not gotten a reply from */
void NetworkGameListRequery()
{
NetworkGameListHandleDelayedInsert();
static uint8 requery_cnt = 0;
if (++requery_cnt < REQUERY_EVERY_X_GAMELOOPS) return;
requery_cnt = 0;
for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
item->retries++;
if (item->retries < REFRESH_GAMEINFO_X_REQUERIES && (item->online || item->retries >= MAX_GAME_LIST_REQUERY_COUNT)) continue;
/* item gets mostly zeroed by NetworkUDPQueryServer */
uint8 retries = item->retries;
NetworkUDPQueryServer(NetworkAddress(item->address));
item->retries = (retries >= REFRESH_GAMEINFO_X_REQUERIES) ? 0 : retries;
}
}
