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Codechange: track version of network servers to prune once out-of-date

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This commit is contained in:
Patric Stout
2021-04-29 16:30:42 +02:00
committed by Patric Stout
parent cbaac5609f
commit e1e2212e0e
5 changed files with 41 additions and 5 deletions
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31
src/network/network_gamelist.cpp
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@@ -20,7 +20,8 @@
#include "../safeguards.h"
NetworkGameList *_network_game_list = nullptr;
NetworkGameList *_network_game_list = nullptr; ///< Game list of this client.
int _network_game_list_version = 0; ///< Current version of all items in the list.
/** The games to insert when the GUI thread has time for us. */
static std::atomic<NetworkGameList *> _network_game_delayed_insertion_list(nullptr);
@@ -81,6 +82,7 @@ NetworkGameList *NetworkGameListAddItem(const std::string &connection_string)
}
item = new NetworkGameList(resolved_connection_string);
item->version = _network_game_list_version;
if (prev_item == nullptr) {
_network_game_list = item;
@@ -120,6 +122,33 @@ void NetworkGameListRemoveItem(NetworkGameList *remove)
}
}
/**
* Remove all servers that have not recently been updated.
* Call this after you received all the servers from the Game Coordinator, so
* the ones that are no longer listed are removed.
*/
void NetworkGameListRemoveExpired()
{
NetworkGameList **prev_item = &_network_game_list;
for (NetworkGameList *item = _network_game_list; item != nullptr;) {
if (!item->manually && item->version < _network_game_list_version) {
NetworkGameList *remove = item;
item = item->next;
*prev_item = item;
/* Remove GRFConfig information */
ClearGRFConfigList(&remove->info.grfconfig);
delete remove;
} else {
prev_item = &item->next;
item = item->next;
}
}
UpdateNetworkGameWindow();
}
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