network_gamelist.cpp
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00002
00008 #ifdef ENABLE_NETWORK
00009
00010 #include "../stdafx.h"
00011 #include "../debug.h"
00012 #include "../core/alloc_func.hpp"
00013 #include "../thread.h"
00014 #include "../string_func.h"
00015 #include "network_internal.h"
00016 #include "network_udp.h"
00017 #include "network_gamelist.h"
00018
00019 NetworkGameList *_network_game_list = NULL;
00020
00021 ThreadMutex *_network_game_list_mutex = ThreadMutex::New();
00022 NetworkGameList *_network_game_delayed_insertion_list = NULL;
00023
00028 void NetworkGameListAddItemDelayed(NetworkGameList *item)
00029 {
00030 _network_game_list_mutex->BeginCritical();
00031 item->next = _network_game_delayed_insertion_list;
00032 _network_game_delayed_insertion_list = item;
00033 _network_game_list_mutex->EndCritical();
00034 }
00035
00037 static void NetworkGameListHandleDelayedInsert()
00038 {
00039 _network_game_list_mutex->BeginCritical();
00040 while (_network_game_delayed_insertion_list != NULL) {
00041 NetworkGameList *ins_item = _network_game_delayed_insertion_list;
00042 _network_game_delayed_insertion_list = ins_item->next;
00043
00044 NetworkGameList *item = NetworkGameListAddItem(ins_item->ip, ins_item->port);
00045
00046 if (item != NULL) {
00047 if (StrEmpty(item->info.server_name)) {
00048 memset(&item->info, 0, sizeof(item->info));
00049 strecpy(item->info.server_name, ins_item->info.server_name, lastof(item->info.server_name));
00050 strecpy(item->info.hostname, ins_item->info.hostname, lastof(item->info.hostname));
00051 item->online = false;
00052 }
00053 item->manually = ins_item->manually;
00054 UpdateNetworkGameWindow(false);
00055 }
00056 free(ins_item);
00057 }
00058 _network_game_list_mutex->EndCritical();
00059 }
00060
00066 NetworkGameList *NetworkGameListAddItem(uint32 ip, uint16 port)
00067 {
00068 if (ip == 0) return NULL;
00069
00070 NetworkGameList *item, *prev_item;
00071
00072 prev_item = NULL;
00073 for (item = _network_game_list; item != NULL; item = item->next) {
00074 if (item->ip == ip && item->port == port) return item;
00075 prev_item = item;
00076 }
00077
00078 item = CallocT<NetworkGameList>(1);
00079 item->next = NULL;
00080 item->ip = ip;
00081 item->port = port;
00082
00083 if (prev_item == NULL) {
00084 _network_game_list = item;
00085 } else {
00086 prev_item->next = item;
00087 }
00088 DEBUG(net, 4, "[gamelist] added server to list");
00089
00090 UpdateNetworkGameWindow(false);
00091
00092 return item;
00093 }
00094
00097 void NetworkGameListRemoveItem(NetworkGameList *remove)
00098 {
00099 NetworkGameList *item, *prev_item;
00100
00101 prev_item = NULL;
00102 for (item = _network_game_list; item != NULL; item = item->next) {
00103 if (remove == item) {
00104 if (prev_item == NULL) {
00105 _network_game_list = remove->next;
00106 } else {
00107 prev_item->next = remove->next;
00108 }
00109
00110
00111 ClearGRFConfigList(&remove->info.grfconfig);
00112 free(remove);
00113 remove = NULL;
00114
00115 DEBUG(net, 4, "[gamelist] removed server from list");
00116 UpdateNetworkGameWindow(false);
00117 return;
00118 }
00119 prev_item = item;
00120 }
00121 }
00122
00123 enum {
00124 MAX_GAME_LIST_REQUERY_COUNT = 5,
00125 REQUERY_EVERY_X_GAMELOOPS = 60,
00126 REFRESH_GAMEINFO_X_REQUERIES = 50,
00127 };
00128
00130 void NetworkGameListRequery()
00131 {
00132 NetworkGameListHandleDelayedInsert();
00133
00134 static uint8 requery_cnt = 0;
00135
00136 if (++requery_cnt < REQUERY_EVERY_X_GAMELOOPS) return;
00137 requery_cnt = 0;
00138
00139 for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
00140 item->retries++;
00141 if (item->retries < REFRESH_GAMEINFO_X_REQUERIES && (item->online || item->retries >= MAX_GAME_LIST_REQUERY_COUNT)) continue;
00142
00143
00144 uint8 retries = item->retries;
00145 NetworkUDPQueryServer(NetworkAddress(item->ip, item->port));
00146 item->retries = (retries >= REFRESH_GAMEINFO_X_REQUERIES) ? 0 : retries;
00147 }
00148 }
00149
00150 #endif