(svn r15079) -Codechange: split tcp 'backend' and in-game handling like it is for UDP.

src/network/core/tcp_game.cpp

@@ -0,0 +1,69 @@
+/* $Id$ */
+
+/**
+ * @file tcp_game.cpp Basic functions to receive and send TCP packets for game purposes.
+ */
+
+#ifdef ENABLE_NETWORK
+
+#include "../../stdafx.h"
+#include "../../openttd.h"
+#include "../../variables.h"
+
+#include "../network_internal.h"
+#include "packet.h"
+#include "tcp_game.h"
+
+#include "table/strings.h"
+#include "../../oldpool_func.h"
+
+/** Make very sure the preconditions given in network_type.h are actually followed */
+assert_compile(MAX_CLIENT_SLOTS == (MAX_CLIENT_SLOTS >> NCI_BITS_PER_POOL_BLOCK) << NCI_BITS_PER_POOL_BLOCK);
+assert_compile(MAX_CLIENT_SLOTS > MAX_CLIENTS);
+
+typedef ClientIndex NetworkClientSocketID;
+DEFINE_OLD_POOL_GENERIC(NetworkClientSocket, NetworkClientSocket);
+
+NetworkClientSocket::NetworkClientSocket(ClientID client_id)
+{
+	this->client_id         = client_id;
+	this->status            = STATUS_INACTIVE;
+}
+
+NetworkClientSocket::~NetworkClientSocket()
+{
+	while (this->command_queue != NULL) {
+		CommandPacket *p = this->command_queue->next;
+		free(this->command_queue);
+		this->command_queue = p;
+	}
+
+	this->client_id = INVALID_CLIENT_ID;
+	this->status = STATUS_INACTIVE;
+}
+
+/**
+ * Functions to help NetworkRecv_Packet/NetworkSend_Packet a bit
+ *  A socket can make errors. When that happens this handles what to do.
+ * For clients: close connection and drop back to main-menu
+ * For servers: close connection and that is it
+ * @return the new status
+ * TODO: needs to be splitted when using client and server socket packets
+ */
+NetworkRecvStatus NetworkClientSocket::CloseConnection()
+{
+	/* Clients drop back to the main menu */
+	if (!_network_server && _networking) {
+		_switch_mode = SM_MENU;
+		_networking = false;
+		extern StringID _switch_mode_errorstr;
+		_switch_mode_errorstr = STR_NETWORK_ERR_LOSTCONNECTION;
+
+		return NETWORK_RECV_STATUS_CONN_LOST;
+	}
+
+	NetworkCloseClient(this);
+	return NETWORK_RECV_STATUS_OKAY;
+}
+
+#endif /* ENABLE_NETWORK */