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Code Issues Activity

(svn r21256) -Fix [FS#4189]: Clients weren't always notified when the connection was lost

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This commit is contained in:
rubidium
2010-11-19 15:55:53 +00:00
parent 999246f63e
commit 874abb2965
3 changed files with 40 additions and 0 deletions
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36
src/network/network_client.cpp
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@@ -27,6 +27,7 @@
#include "../company_gui.h"
#include "../core/random_func.hpp"
#include "../date_func.h"
#include "../gui.h"
#include "../rev.h"
#include "network.h"
#include "network_base.h"
@@ -140,6 +141,7 @@ void ClientNetworkGameSocketHandler::ClientError(NetworkRecvStatus res)
/*static */ void ClientNetworkGameSocketHandler::Send()
{
my_client->Send_Packets();
my_client->CheckConnection();
}
/**
@@ -1032,6 +1034,40 @@ DEF_GAME_RECEIVE_COMMAND(Client, PACKET_SERVER_COMPANY_UPDATE)
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Check the connection's state, i.e. is the connection still up?
*/
void ClientNetworkGameSocketHandler::CheckConnection()
{
/* Only once we're authorized we can expect a steady stream of packets. */
if (this->status < STATUS_AUTHORIZED) return;
/* It might... sometimes occur that the realtime ticker overflows. */
if (_realtime_tick < this->last_packet) this->last_packet = _realtime_tick;
/* Lag is in milliseconds; 2 seconds are roughly the server's
* "you're slow" threshold (1 game day). */
uint lag = (_realtime_tick - this->last_packet) / 1000;
if (lag < 2) return;
/* 10 seconds are (way) more than 4 game days after which
* the server will forcefully disconnect you. */
if (lag > 10) {
this->NetworkGameSocketHandler::CloseConnection();
_switch_mode_errorstr = STR_NETWORK_ERROR_LOSTCONNECTION;
return;
}
/* Prevent showing the lag message every tick; just update it when needed. */
static uint last_lag = 0;
if (last_lag == lag) return;
last_lag = lag;
SetDParam(0, lag);
ShowErrorMessage(STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION_CAPTION, STR_NETWORK_ERROR_CLIENT_GUI_LOST_CONNECTION, WL_INFO);
}
/* Is called after a client is connected to the server */
void NetworkClient_Connected()
{

1
src/network/network_client.h
View File

@@ -73,6 +73,7 @@ protected:
static NetworkRecvStatus SendNewGRFsOk();
static NetworkRecvStatus SendGetMap();
static NetworkRecvStatus SendMapOk();
void CheckConnection();
public:
ClientNetworkGameSocketHandler(SOCKET s);
~ClientNetworkGameSocketHandler();