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 ClearGRFConfigList(&item->info.grfconfig);
00048 if (StrEmpty(item->info.server_name)) {
00049 memset(&item->info, 0, sizeof(item->info));
00050 strecpy(item->info.server_name, ins_item->info.server_name, lastof(item->info.server_name));
00051 strecpy(item->info.hostname, ins_item->info.hostname, lastof(item->info.hostname));
00052 item->online = false;
00053 }
00054 item->manually = ins_item->manually;
00055 UpdateNetworkGameWindow(false);
00056 }
00057 free(ins_item);
00058 }
00059 _network_game_list_mutex->EndCritical();
00060 }
00061
00067 NetworkGameList *NetworkGameListAddItem(uint32 ip, uint16 port)
00068 {
00069 if (ip == 0) return NULL;
00070
00071 NetworkGameList *item, *prev_item;
00072
00073 prev_item = NULL;
00074 for (item = _network_game_list; item != NULL; item = item->next) {
00075 if (item->ip == ip && item->port == port) return item;
00076 prev_item = item;
00077 }
00078
00079 item = CallocT<NetworkGameList>(1);
00080 item->next = NULL;
00081 item->ip = ip;
00082 item->port = port;
00083
00084 if (prev_item == NULL) {
00085 _network_game_list = item;
00086 } else {
00087 prev_item->next = item;
00088 }
00089 DEBUG(net, 4, "[gamelist] added server to list");
00090
00091 UpdateNetworkGameWindow(false);
00092
00093 return item;
00094 }
00095
00098 void NetworkGameListRemoveItem(NetworkGameList *remove)
00099 {
00100 NetworkGameList *item, *prev_item;
00101
00102 prev_item = NULL;
00103 for (item = _network_game_list; item != NULL; item = item->next) {
00104 if (remove == item) {
00105 if (prev_item == NULL) {
00106 _network_game_list = remove->next;
00107 } else {
00108 prev_item->next = remove->next;
00109 }
00110
00111
00112 ClearGRFConfigList(&remove->info.grfconfig);
00113 free(remove);
00114 remove = NULL;
00115
00116 DEBUG(net, 4, "[gamelist] removed server from list");
00117 UpdateNetworkGameWindow(false);
00118 return;
00119 }
00120 prev_item = item;
00121 }
00122 }
00123
00124 enum {
00125 MAX_GAME_LIST_REQUERY_COUNT = 5,
00126 REQUERY_EVERY_X_GAMELOOPS = 60,
00127 REFRESH_GAMEINFO_X_REQUERIES = 50,
00128 };
00129
00131 void NetworkGameListRequery()
00132 {
00133 NetworkGameListHandleDelayedInsert();
00134
00135 static uint8 requery_cnt = 0;
00136
00137 if (++requery_cnt < REQUERY_EVERY_X_GAMELOOPS) return;
00138 requery_cnt = 0;
00139
00140 for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
00141 item->retries++;
00142 if (item->retries < REFRESH_GAMEINFO_X_REQUERIES && (item->online || item->retries >= MAX_GAME_LIST_REQUERY_COUNT)) continue;
00143
00144
00145 uint8 retries = item->retries;
00146 NetworkUDPQueryServer(NetworkAddress(item->ip, item->port));
00147 item->retries = (retries >= REFRESH_GAMEINFO_X_REQUERIES) ? 0 : retries;
00148 }
00149 }
00150
00151 #endif