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Location: cpp/openttd-patchpack/source/src/network/network_gamelist.cpp
r19417:56f21292f343
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(svn r24334) -Update from WebTranslator v3.0:
dutch - 11 changes by habell
hungarian - 189 changes by IPG
latvian - 14 changes by Parastais
dutch - 11 changes by habell
hungarian - 189 changes by IPG
latvian - 14 changes by Parastais
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file network_gamelist.cpp This file handles the GameList
* Also, it handles the request to a server for data about the server
*/
#ifdef ENABLE_NETWORK
#include "../stdafx.h"
#include "../debug.h"
#include "../window_func.h"
#include "../thread/thread.h"
#include "network_internal.h"
#include "network_udp.h"
#include "network_gamelist.h"
NetworkGameList *_network_game_list = NULL;
/** Mutex for handling delayed insertion/querying of servers. */
static ThreadMutex *_network_game_list_mutex = ThreadMutex::New();
/** The games to insert when the GUI thread has time for us. */
static NetworkGameList *_network_game_delayed_insertion_list = NULL;
/**
* Add a new item to the linked gamelist, but do it delayed in the next tick
* or so to prevent race conditions.
* @param item the item to add. Will be freed once added.
*/
void NetworkGameListAddItemDelayed(NetworkGameList *item)
{
_network_game_list_mutex->BeginCritical();
item->next = _network_game_delayed_insertion_list;
_network_game_delayed_insertion_list = item;
_network_game_list_mutex->EndCritical();
}
/** Perform the delayed (thread safe) insertion into the game list */
static void NetworkGameListHandleDelayedInsert()
{
_network_game_list_mutex->BeginCritical();
while (_network_game_delayed_insertion_list != NULL) {
NetworkGameList *ins_item = _network_game_delayed_insertion_list;
_network_game_delayed_insertion_list = ins_item->next;
NetworkGameList *item = NetworkGameListAddItem(ins_item->address);
if (item != NULL) {
if (StrEmpty(item->info.server_name)) {
ClearGRFConfigList(&item->info.grfconfig);
memset(&item->info, 0, sizeof(item->info));
strecpy(item->info.server_name, ins_item->info.server_name, lastof(item->info.server_name));
strecpy(item->info.hostname, ins_item->info.hostname, lastof(item->info.hostname));
item->online = false;
}
item->manually |= ins_item->manually;
if (item->manually) NetworkRebuildHostList();
UpdateNetworkGameWindow();
}
free(ins_item);
}
_network_game_list_mutex->EndCritical();
}
/**
* Add a new item to the linked gamelist. If the IP and Port match
* return the existing item instead of adding it again
* @param address the address of the to-be added item
* @return a point to the newly added or already existing item
*/
NetworkGameList *NetworkGameListAddItem(NetworkAddress address)
{
const char *hostname = address.GetHostname();
/* Do not query the 'any' address. */
if (StrEmpty(hostname) ||
strcmp(hostname, "0.0.0.0") == 0 ||
strcmp(hostname, "::") == 0) {
return NULL;
}
NetworkGameList *item, *prev_item;
prev_item = NULL;
for (item = _network_game_list; item != NULL; item = item->next) {
if (item->address == address) return item;
prev_item = item;
}
item = CallocT<NetworkGameList>(1);
item->next = NULL;
item->address = address;
if (prev_item == NULL) {
_network_game_list = item;
} else {
prev_item->next = item;
}
DEBUG(net, 4, "[gamelist] added server to list");
UpdateNetworkGameWindow();
return item;
}
/**
* Remove an item from the gamelist linked list
* @param remove pointer to the item to be removed
*/
void NetworkGameListRemoveItem(NetworkGameList *remove)
{
NetworkGameList *prev_item = NULL;
for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
if (remove == item) {
if (prev_item == NULL) {
_network_game_list = remove->next;
} else {
prev_item->next = remove->next;
}
/* Remove GRFConfig information */
ClearGRFConfigList(&remove->info.grfconfig);
free(remove);
remove = NULL;
DEBUG(net, 4, "[gamelist] removed server from list");
NetworkRebuildHostList();
UpdateNetworkGameWindow();
return;
}
prev_item = item;
}
}
static const uint MAX_GAME_LIST_REQUERY_COUNT = 10; ///< How often do we requery in number of times per server?
static const uint REQUERY_EVERY_X_GAMELOOPS = 60; ///< How often do we requery in time?
static const uint REFRESH_GAMEINFO_X_REQUERIES = 50; ///< Refresh the game info itself after REFRESH_GAMEINFO_X_REQUERIES * REQUERY_EVERY_X_GAMELOOPS game loops
/** 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;
}
}
/**
* Rebuild the GRFConfig's of the servers in the game list as we did
* a rescan and might have found new NewGRFs.
*/
void NetworkAfterNewGRFScan()
{
for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
/* Reset compatability state */
item->info.compatible = item->info.version_compatible;
for (GRFConfig *c = item->info.grfconfig; c != NULL; c = c->next) {
assert(HasBit(c->flags, GCF_COPY));
const GRFConfig *f = FindGRFConfig(c->ident.grfid, FGCM_EXACT, c->ident.md5sum);
if (f == NULL) {
/* Don't know the GRF, so mark game incompatible and the (possibly)
* already resolved name for this GRF (another server has sent the
* name of the GRF already */
c->name->Release();
c->name = FindUnknownGRFName(c->ident.grfid, c->ident.md5sum, true);
c->name->AddRef();
c->status = GCS_NOT_FOUND;
/* If we miss a file, we're obviously incompatible */
item->info.compatible = false;
} else {
c->filename = f->filename;
c->name->Release();
c->name = f->name;
c->name->AddRef();
c->info->Release();
c->info = f->info;
c->info->AddRef();
c->status = GCS_UNKNOWN;
}
}
}
InvalidateWindowClassesData(WC_NETWORK_WINDOW);
}
#endif /* ENABLE_NETWORK */
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