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00017 #ifdef ENABLE_NETWORK
00018
00019 #include "../stdafx.h"
00020 #include "../date_func.h"
00021 #include "../map_func.h"
00022 #include "../debug.h"
00023 #include "network_gamelist.h"
00024 #include "network_internal.h"
00025 #include "network_udp.h"
00026 #include "network.h"
00027 #include "../core/endian_func.hpp"
00028 #include "../company_base.h"
00029 #include "../thread/thread.h"
00030 #include "../rev.h"
00031 #include "../newgrf_text.h"
00032 #include "../strings_func.h"
00033 #include "table/strings.h"
00034
00035 #include "core/udp.h"
00036
00038 static ThreadMutex *_network_udp_mutex = ThreadMutex::New();
00039
00041 static uint64 _session_key = 0;
00042
00043 static const uint ADVERTISE_NORMAL_INTERVAL = 30000;
00044 static const uint ADVERTISE_RETRY_INTERVAL = 300;
00045 static const uint ADVERTISE_RETRY_TIMES = 3;
00046
00047 NetworkUDPSocketHandler *_udp_client_socket = NULL;
00048 NetworkUDPSocketHandler *_udp_server_socket = NULL;
00049 NetworkUDPSocketHandler *_udp_master_socket = NULL;
00050
00052 struct NetworkUDPQueryServerInfo : NetworkAddress {
00053 bool manually;
00054
00060 NetworkUDPQueryServerInfo(const NetworkAddress &address, bool manually) :
00061 NetworkAddress(address),
00062 manually(manually)
00063 {
00064 }
00065 };
00066
00073 static void NetworkUDPQueryServer(NetworkAddress *address, bool needs_mutex, bool manually)
00074 {
00075
00076 NetworkGameList *item = CallocT<NetworkGameList>(1);
00077 address->GetAddressAsString(item->info.server_name, lastof(item->info.server_name));
00078 strecpy(item->info.hostname, address->GetHostname(), lastof(item->info.hostname));
00079 item->address = *address;
00080 item->manually = manually;
00081 NetworkGameListAddItemDelayed(item);
00082
00083 if (needs_mutex) _network_udp_mutex->BeginCritical();
00084
00085 Packet p(PACKET_UDP_CLIENT_FIND_SERVER);
00086 if (_udp_client_socket != NULL) _udp_client_socket->SendPacket(&p, address);
00087 if (needs_mutex) _network_udp_mutex->EndCritical();
00088 }
00089
00094 static void NetworkUDPQueryServerThread(void *pntr)
00095 {
00096 NetworkUDPQueryServerInfo *info = (NetworkUDPQueryServerInfo*)pntr;
00097 NetworkUDPQueryServer(info, true, info->manually);
00098
00099 delete info;
00100 }
00101
00107 void NetworkUDPQueryServer(NetworkAddress address, bool manually)
00108 {
00109 NetworkUDPQueryServerInfo *info = new NetworkUDPQueryServerInfo(address, manually);
00110 if (address.IsResolved() || !ThreadObject::New(NetworkUDPQueryServerThread, info)) {
00111 NetworkUDPQueryServerThread(info);
00112 }
00113 }
00114
00116
00118 class MasterNetworkUDPSocketHandler : public NetworkUDPSocketHandler {
00119 protected:
00120 virtual void Receive_MASTER_ACK_REGISTER(Packet *p, NetworkAddress *client_addr);
00121 virtual void Receive_MASTER_SESSION_KEY(Packet *p, NetworkAddress *client_addr);
00122 public:
00127 MasterNetworkUDPSocketHandler(NetworkAddressList *addresses) : NetworkUDPSocketHandler(addresses) {}
00128 virtual ~MasterNetworkUDPSocketHandler() {}
00129 };
00130
00131 void MasterNetworkUDPSocketHandler::Receive_MASTER_ACK_REGISTER(Packet *p, NetworkAddress *client_addr)
00132 {
00133 _network_advertise_retries = 0;
00134 DEBUG(net, 2, "[udp] advertising on master server successful (%s)", NetworkAddress::AddressFamilyAsString(client_addr->GetAddress()->ss_family));
00135
00136
00137 if (!_settings_client.network.server_advertise) NetworkUDPRemoveAdvertise(false);
00138 }
00139
00140 void MasterNetworkUDPSocketHandler::Receive_MASTER_SESSION_KEY(Packet *p, NetworkAddress *client_addr)
00141 {
00142 _session_key = p->Recv_uint64();
00143 DEBUG(net, 2, "[udp] received new session key from master server (%s)", NetworkAddress::AddressFamilyAsString(client_addr->GetAddress()->ss_family));
00144 }
00145
00147
00149 class ServerNetworkUDPSocketHandler : public NetworkUDPSocketHandler {
00150 protected:
00151 virtual void Receive_CLIENT_FIND_SERVER(Packet *p, NetworkAddress *client_addr);
00152 virtual void Receive_CLIENT_DETAIL_INFO(Packet *p, NetworkAddress *client_addr);
00153 virtual void Receive_CLIENT_GET_NEWGRFS(Packet *p, NetworkAddress *client_addr);
00154 public:
00159 ServerNetworkUDPSocketHandler(NetworkAddressList *addresses) : NetworkUDPSocketHandler(addresses) {}
00160 virtual ~ServerNetworkUDPSocketHandler() {}
00161 };
00162
00163 void ServerNetworkUDPSocketHandler::Receive_CLIENT_FIND_SERVER(Packet *p, NetworkAddress *client_addr)
00164 {
00165
00166 if (!_network_udp_server) {
00167 return;
00168 }
00169
00170 NetworkGameInfo ngi;
00171
00172
00173 ngi.clients_on = _network_game_info.clients_on;
00174 ngi.start_date = ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1);
00175
00176 ngi.server_lang = _settings_client.network.server_lang;
00177 ngi.use_password = !StrEmpty(_settings_client.network.server_password);
00178 ngi.clients_max = _settings_client.network.max_clients;
00179 ngi.companies_on = (byte)Company::GetNumItems();
00180 ngi.companies_max = _settings_client.network.max_companies;
00181 ngi.spectators_on = NetworkSpectatorCount();
00182 ngi.spectators_max = _settings_client.network.max_spectators;
00183 ngi.game_date = _date;
00184 ngi.map_width = MapSizeX();
00185 ngi.map_height = MapSizeY();
00186 ngi.map_set = _settings_game.game_creation.landscape;
00187 ngi.dedicated = _network_dedicated;
00188 ngi.grfconfig = _grfconfig;
00189
00190 strecpy(ngi.map_name, _network_game_info.map_name, lastof(ngi.map_name));
00191 strecpy(ngi.server_name, _settings_client.network.server_name, lastof(ngi.server_name));
00192 strecpy(ngi.server_revision, _openttd_revision, lastof(ngi.server_revision));
00193
00194 Packet packet(PACKET_UDP_SERVER_RESPONSE);
00195 this->SendNetworkGameInfo(&packet, &ngi);
00196
00197
00198 this->SendPacket(&packet, client_addr);
00199
00200 DEBUG(net, 2, "[udp] queried from %s", client_addr->GetHostname());
00201 }
00202
00203 void ServerNetworkUDPSocketHandler::Receive_CLIENT_DETAIL_INFO(Packet *p, NetworkAddress *client_addr)
00204 {
00205
00206 if (!_network_udp_server) return;
00207
00208 Packet packet(PACKET_UDP_SERVER_DETAIL_INFO);
00209
00210
00211 packet.Send_uint8 (NETWORK_COMPANY_INFO_VERSION);
00212 packet.Send_uint8 ((uint8)Company::GetNumItems());
00213
00214
00215 NetworkCompanyStats company_stats[MAX_COMPANIES];
00216 NetworkPopulateCompanyStats(company_stats);
00217
00218
00219 static const uint MIN_CI_SIZE = 54;
00220 uint max_cname_length = NETWORK_COMPANY_NAME_LENGTH;
00221
00222 if (Company::GetNumItems() * (MIN_CI_SIZE + NETWORK_COMPANY_NAME_LENGTH) >= (uint)SEND_MTU - packet.size) {
00223
00224 assert(Company::GetNumItems() * MIN_CI_SIZE < (uint)SEND_MTU - packet.size);
00225
00226
00227
00228
00229 for (;;) {
00230 int free = SEND_MTU - packet.size;
00231 Company *company;
00232 FOR_ALL_COMPANIES(company) {
00233 char company_name[NETWORK_COMPANY_NAME_LENGTH];
00234 SetDParam(0, company->index);
00235 GetString(company_name, STR_COMPANY_NAME, company_name + max_cname_length - 1);
00236 free -= MIN_CI_SIZE;
00237 free -= (int)strlen(company_name);
00238 }
00239 if (free >= 0) break;
00240
00241
00242 assert(max_cname_length > 0);
00243 max_cname_length--;
00244 }
00245 }
00246
00247 Company *company;
00248
00249 FOR_ALL_COMPANIES(company) {
00250
00251 this->SendCompanyInformation(&packet, company, &company_stats[company->index], max_cname_length);
00252 }
00253
00254 this->SendPacket(&packet, client_addr);
00255 }
00256
00270 void ServerNetworkUDPSocketHandler::Receive_CLIENT_GET_NEWGRFS(Packet *p, NetworkAddress *client_addr)
00271 {
00272 uint8 num_grfs;
00273 uint i;
00274
00275 const GRFConfig *in_reply[NETWORK_MAX_GRF_COUNT];
00276 uint8 in_reply_count = 0;
00277 size_t packet_len = 0;
00278
00279 DEBUG(net, 6, "[udp] newgrf data request from %s", client_addr->GetAddressAsString());
00280
00281 num_grfs = p->Recv_uint8 ();
00282 if (num_grfs > NETWORK_MAX_GRF_COUNT) return;
00283
00284 for (i = 0; i < num_grfs; i++) {
00285 GRFIdentifier c;
00286 const GRFConfig *f;
00287
00288 this->ReceiveGRFIdentifier(p, &c);
00289
00290
00291 f = FindGRFConfig(c.grfid, FGCM_EXACT, c.md5sum);
00292 if (f == NULL) continue;
00293
00294
00295
00296
00297 packet_len += sizeof(c.grfid) + sizeof(c.md5sum) +
00298 min(strlen(f->GetName()) + 1, (size_t)NETWORK_GRF_NAME_LENGTH);
00299 if (packet_len > SEND_MTU - 4) {
00300 break;
00301 }
00302 in_reply[in_reply_count] = f;
00303 in_reply_count++;
00304 }
00305
00306 if (in_reply_count == 0) return;
00307
00308 Packet packet(PACKET_UDP_SERVER_NEWGRFS);
00309 packet.Send_uint8(in_reply_count);
00310 for (i = 0; i < in_reply_count; i++) {
00311 char name[NETWORK_GRF_NAME_LENGTH];
00312
00313
00314 strecpy(name, in_reply[i]->GetName(), lastof(name));
00315 this->SendGRFIdentifier(&packet, &in_reply[i]->ident);
00316 packet.Send_string(name);
00317 }
00318
00319 this->SendPacket(&packet, client_addr);
00320 }
00321
00323
00325 class ClientNetworkUDPSocketHandler : public NetworkUDPSocketHandler {
00326 protected:
00327 virtual void Receive_SERVER_RESPONSE(Packet *p, NetworkAddress *client_addr);
00328 virtual void Receive_MASTER_RESPONSE_LIST(Packet *p, NetworkAddress *client_addr);
00329 virtual void Receive_SERVER_NEWGRFS(Packet *p, NetworkAddress *client_addr);
00330 virtual void HandleIncomingNetworkGameInfoGRFConfig(GRFConfig *config);
00331 public:
00332 virtual ~ClientNetworkUDPSocketHandler() {}
00333 };
00334
00335 void ClientNetworkUDPSocketHandler::Receive_SERVER_RESPONSE(Packet *p, NetworkAddress *client_addr)
00336 {
00337 NetworkGameList *item;
00338
00339
00340 if (_network_udp_server) return;
00341
00342 DEBUG(net, 4, "[udp] server response from %s", client_addr->GetAddressAsString());
00343
00344
00345 item = NetworkGameListAddItem(*client_addr);
00346
00347 ClearGRFConfigList(&item->info.grfconfig);
00348 this->ReceiveNetworkGameInfo(p, &item->info);
00349
00350 item->info.compatible = true;
00351 {
00352
00353
00354
00355
00356
00357
00358
00359 const GRFConfig *in_request[NETWORK_MAX_GRF_COUNT];
00360 const GRFConfig *c;
00361 uint in_request_count = 0;
00362
00363 for (c = item->info.grfconfig; c != NULL; c = c->next) {
00364 if (c->status == GCS_NOT_FOUND) item->info.compatible = false;
00365 if (c->status != GCS_NOT_FOUND || strcmp(c->GetName(), UNKNOWN_GRF_NAME_PLACEHOLDER) != 0) continue;
00366 in_request[in_request_count] = c;
00367 in_request_count++;
00368 }
00369
00370 if (in_request_count > 0) {
00371
00372 uint i;
00373 Packet packet(PACKET_UDP_CLIENT_GET_NEWGRFS);
00374
00375 packet.Send_uint8(in_request_count);
00376 for (i = 0; i < in_request_count; i++) {
00377 this->SendGRFIdentifier(&packet, &in_request[i]->ident);
00378 }
00379
00380 this->SendPacket(&packet, &item->address);
00381 }
00382 }
00383
00384 if (item->info.hostname[0] == '\0') {
00385 snprintf(item->info.hostname, sizeof(item->info.hostname), "%s", client_addr->GetHostname());
00386 }
00387
00388 if (client_addr->GetAddress()->ss_family == AF_INET6) {
00389 strecat(item->info.server_name, " (IPv6)", lastof(item->info.server_name));
00390 }
00391
00392
00393 item->info.version_compatible = IsNetworkCompatibleVersion(item->info.server_revision);
00394 item->info.compatible &= item->info.version_compatible;
00395
00396 item->online = true;
00397
00398 UpdateNetworkGameWindow(false);
00399 }
00400
00401 void ClientNetworkUDPSocketHandler::Receive_MASTER_RESPONSE_LIST(Packet *p, NetworkAddress *client_addr)
00402 {
00403
00404
00405
00406
00407
00408
00409 ServerListType type = (ServerListType)(p->Recv_uint8() - 1);
00410
00411 if (type < SLT_END) {
00412 for (int i = p->Recv_uint16(); i != 0 ; i--) {
00413 sockaddr_storage addr_storage;
00414 memset(&addr_storage, 0, sizeof(addr_storage));
00415
00416 if (type == SLT_IPv4) {
00417 addr_storage.ss_family = AF_INET;
00418 ((sockaddr_in*)&addr_storage)->sin_addr.s_addr = TO_LE32(p->Recv_uint32());
00419 } else {
00420 assert(type == SLT_IPv6);
00421 addr_storage.ss_family = AF_INET6;
00422 byte *addr = (byte*)&((sockaddr_in6*)&addr_storage)->sin6_addr;
00423 for (uint i = 0; i < sizeof(in6_addr); i++) *addr++ = p->Recv_uint8();
00424 }
00425 NetworkAddress addr(addr_storage, type == SLT_IPv4 ? sizeof(sockaddr_in) : sizeof(sockaddr_in6));
00426 addr.SetPort(p->Recv_uint16());
00427
00428
00429 if (this->HasClientQuit()) return;
00430
00431 NetworkUDPQueryServer(&addr, false, false);
00432 }
00433 }
00434 }
00435
00437 void ClientNetworkUDPSocketHandler::Receive_SERVER_NEWGRFS(Packet *p, NetworkAddress *client_addr)
00438 {
00439 uint8 num_grfs;
00440 uint i;
00441
00442 DEBUG(net, 6, "[udp] newgrf data reply from %s", client_addr->GetAddressAsString());
00443
00444 num_grfs = p->Recv_uint8 ();
00445 if (num_grfs > NETWORK_MAX_GRF_COUNT) return;
00446
00447 for (i = 0; i < num_grfs; i++) {
00448 char name[NETWORK_GRF_NAME_LENGTH];
00449 GRFIdentifier c;
00450
00451 this->ReceiveGRFIdentifier(p, &c);
00452 p->Recv_string(name, sizeof(name));
00453
00454
00455
00456 if (StrEmpty(name)) continue;
00457
00458
00459
00460
00461 GRFTextWrapper *unknown_name = FindUnknownGRFName(c.grfid, c.md5sum, false);
00462 if (unknown_name != NULL && strcmp(GetGRFStringFromGRFText(unknown_name->text), UNKNOWN_GRF_NAME_PLACEHOLDER) == 0) {
00463 AddGRFTextToList(&unknown_name->text, name);
00464 }
00465 }
00466 }
00467
00468 void ClientNetworkUDPSocketHandler::HandleIncomingNetworkGameInfoGRFConfig(GRFConfig *config)
00469 {
00470
00471 const GRFConfig *f = FindGRFConfig(config->ident.grfid, FGCM_EXACT, config->ident.md5sum);
00472 if (f == NULL) {
00473
00474
00475
00476 config->name->Release();
00477 config->name = FindUnknownGRFName(config->ident.grfid, config->ident.md5sum, true);
00478 config->name->AddRef();
00479 config->status = GCS_NOT_FOUND;
00480 } else {
00481 config->filename = f->filename;
00482 config->name->Release();
00483 config->name = f->name;
00484 config->name->AddRef();
00485 config->info->Release();
00486 config->info = f->info;
00487 config->info->AddRef();
00488 config->url->Release();
00489 config->url = f->url;
00490 config->url->AddRef();
00491 }
00492 SetBit(config->flags, GCF_COPY);
00493 }
00494
00496 static void NetworkUDPBroadCast(NetworkUDPSocketHandler *socket)
00497 {
00498 for (NetworkAddress *addr = _broadcast_list.Begin(); addr != _broadcast_list.End(); addr++) {
00499 Packet p(PACKET_UDP_CLIENT_FIND_SERVER);
00500
00501 DEBUG(net, 4, "[udp] broadcasting to %s", addr->GetHostname());
00502
00503 socket->SendPacket(&p, addr, true, true);
00504 }
00505 }
00506
00507
00509 void NetworkUDPQueryMasterServer()
00510 {
00511 Packet p(PACKET_UDP_CLIENT_GET_LIST);
00512 NetworkAddress out_addr(NETWORK_MASTER_SERVER_HOST, NETWORK_MASTER_SERVER_PORT);
00513
00514
00515 p.Send_uint8(NETWORK_MASTER_SERVER_VERSION);
00516 p.Send_uint8(SLT_AUTODETECT);
00517
00518 _udp_client_socket->SendPacket(&p, &out_addr, true);
00519
00520 DEBUG(net, 2, "[udp] master server queried at %s", out_addr.GetAddressAsString());
00521 }
00522
00524 void NetworkUDPSearchGame()
00525 {
00526
00527 if (_network_udp_broadcast > 0) return;
00528
00529 DEBUG(net, 0, "[udp] searching server");
00530
00531 NetworkUDPBroadCast(_udp_client_socket);
00532 _network_udp_broadcast = 300;
00533 }
00534
00539 static void NetworkUDPRemoveAdvertiseThread(void *pntr)
00540 {
00541 DEBUG(net, 1, "[udp] removing advertise from master server");
00542
00543
00544 NetworkAddress out_addr(NETWORK_MASTER_SERVER_HOST, NETWORK_MASTER_SERVER_PORT);
00545
00546
00547 Packet p(PACKET_UDP_SERVER_UNREGISTER);
00548
00549 p.Send_uint8 (NETWORK_MASTER_SERVER_VERSION);
00550 p.Send_uint16(_settings_client.network.server_port);
00551
00552 _network_udp_mutex->BeginCritical();
00553 if (_udp_master_socket != NULL) _udp_master_socket->SendPacket(&p, &out_addr, true);
00554 _network_udp_mutex->EndCritical();
00555 }
00556
00561 void NetworkUDPRemoveAdvertise(bool blocking)
00562 {
00563
00564 if (!_networking || !_network_server || !_network_udp_server) return;
00565
00566 if (blocking || !ThreadObject::New(NetworkUDPRemoveAdvertiseThread, NULL)) {
00567 NetworkUDPRemoveAdvertiseThread(NULL);
00568 }
00569 }
00570
00575 static void NetworkUDPAdvertiseThread(void *pntr)
00576 {
00577
00578 NetworkAddress out_addr(NETWORK_MASTER_SERVER_HOST, NETWORK_MASTER_SERVER_PORT);
00579
00580 DEBUG(net, 1, "[udp] advertising to master server");
00581
00582
00583 static byte session_key_retries = 0;
00584 if (_session_key == 0 && session_key_retries++ == 2) {
00585 DEBUG(net, 0, "[udp] advertising to the master server is failing");
00586 DEBUG(net, 0, "[udp] we are not receiving the session key from the server");
00587 DEBUG(net, 0, "[udp] please allow udp packets from %s to you to be delivered", out_addr.GetAddressAsString(false));
00588 DEBUG(net, 0, "[udp] please allow udp packets from you to %s to be delivered", out_addr.GetAddressAsString(false));
00589 }
00590 if (_session_key != 0 && _network_advertise_retries == 0) {
00591 DEBUG(net, 0, "[udp] advertising to the master server is failing");
00592 DEBUG(net, 0, "[udp] we are not receiving the acknowledgement from the server");
00593 DEBUG(net, 0, "[udp] this usually means that the master server cannot reach us");
00594 DEBUG(net, 0, "[udp] please allow udp and tcp packets to port %u to be delivered", _settings_client.network.server_port);
00595 DEBUG(net, 0, "[udp] please allow udp and tcp packets from port %u to be delivered", _settings_client.network.server_port);
00596 }
00597
00598
00599 Packet p(PACKET_UDP_SERVER_REGISTER);
00600
00601 p.Send_string(NETWORK_MASTER_SERVER_WELCOME_MESSAGE);
00602 p.Send_uint8 (NETWORK_MASTER_SERVER_VERSION);
00603 p.Send_uint16(_settings_client.network.server_port);
00604 p.Send_uint64(_session_key);
00605
00606 _network_udp_mutex->BeginCritical();
00607 if (_udp_master_socket != NULL) _udp_master_socket->SendPacket(&p, &out_addr, true);
00608 _network_udp_mutex->EndCritical();
00609 }
00610
00615 void NetworkUDPAdvertise()
00616 {
00617
00618 if (!_networking || !_network_server || !_network_udp_server || !_settings_client.network.server_advertise) return;
00619
00620 if (_network_need_advertise) {
00621 _network_need_advertise = false;
00622 _network_advertise_retries = ADVERTISE_RETRY_TIMES;
00623 } else {
00624
00625 if (_network_advertise_retries == 0) {
00626 if ((_network_last_advertise_frame + ADVERTISE_NORMAL_INTERVAL) > _frame_counter) return;
00627
00628 _network_advertise_retries = ADVERTISE_RETRY_TIMES;
00629 }
00630
00631 if ((_network_last_advertise_frame + ADVERTISE_RETRY_INTERVAL) > _frame_counter) return;
00632 }
00633
00634 _network_advertise_retries--;
00635 _network_last_advertise_frame = _frame_counter;
00636
00637 if (!ThreadObject::New(NetworkUDPAdvertiseThread, NULL)) {
00638 NetworkUDPAdvertiseThread(NULL);
00639 }
00640 }
00641
00643 void NetworkUDPInitialize()
00644 {
00645
00646 if (_udp_server_socket != NULL) NetworkUDPClose();
00647
00648 DEBUG(net, 1, "[udp] initializing listeners");
00649 assert(_udp_client_socket == NULL && _udp_server_socket == NULL && _udp_master_socket == NULL);
00650
00651 _network_udp_mutex->BeginCritical();
00652
00653 _udp_client_socket = new ClientNetworkUDPSocketHandler();
00654
00655 NetworkAddressList server;
00656 GetBindAddresses(&server, _settings_client.network.server_port);
00657 _udp_server_socket = new ServerNetworkUDPSocketHandler(&server);
00658
00659 server.Clear();
00660 GetBindAddresses(&server, 0);
00661 _udp_master_socket = new MasterNetworkUDPSocketHandler(&server);
00662
00663 _network_udp_server = false;
00664 _network_udp_broadcast = 0;
00665 _network_udp_mutex->EndCritical();
00666 }
00667
00669 void NetworkUDPClose()
00670 {
00671 _network_udp_mutex->BeginCritical();
00672 _udp_server_socket->Close();
00673 _udp_master_socket->Close();
00674 _udp_client_socket->Close();
00675 delete _udp_client_socket;
00676 delete _udp_server_socket;
00677 delete _udp_master_socket;
00678 _udp_client_socket = NULL;
00679 _udp_server_socket = NULL;
00680 _udp_master_socket = NULL;
00681 _network_udp_mutex->EndCritical();
00682
00683 _network_udp_server = false;
00684 _network_udp_broadcast = 0;
00685 DEBUG(net, 1, "[udp] closed listeners");
00686 }
00687
00689 void NetworkBackgroundUDPLoop()
00690 {
00691 _network_udp_mutex->BeginCritical();
00692
00693 if (_network_udp_server) {
00694 _udp_server_socket->ReceivePackets();
00695 _udp_master_socket->ReceivePackets();
00696 } else {
00697 _udp_client_socket->ReceivePackets();
00698 if (_network_udp_broadcast > 0) _network_udp_broadcast--;
00699 }
00700
00701 _network_udp_mutex->EndCritical();
00702 }
00703
00704 #endif