1 files changed, 169 insertions, 0 deletions
diff --git a/src/net/tmwserv/network.cpp b/src/net/tmwserv/network.cpp
new file mode 100644
index 00000000..d3bc88fa
--- /dev/null
+++ b/src/net/tmwserv/network.cpp
@@ -0,0 +1,169 @@
+/*
+ *  The Mana World
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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; either version 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World 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 The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "network.h"
+
+#include <enet/enet.h>
+
+#include <map>
+
+#include "connection.h"
+#include "internal.h"
+#include "../messagehandler.h"
+#include "../messagein.h"
+
+#include "../../log.h"
+
+/**
+ * The local host which is shared for all outgoing connections.
+ */
+namespace {
+    ENetHost *client;
+}
+
+typedef std::map<unsigned short, MessageHandler*> MessageHandlers;
+typedef MessageHandlers::iterator MessageHandlerIterator;
+static MessageHandlers mMessageHandlers;
+
+void Net::initialize()
+{
+    if (enet_initialize())
+    {
+        logger->error("Failed to initialize ENet.");
+    }
+
+    client = enet_host_create(NULL, 3, 0, 0);
+
+    if (!client)
+    {
+        logger->error("Failed to create the local host.");
+    }
+}
+
+void Net::finalize()
+{
+    if (!client)
+        return; // Wasn't initialized at all
+
+    if (Net::connections) {
+        logger->error("Tried to shutdown the network subsystem while there "
+                "are network connections left!");
+    }
+
+    clearHandlers();
+    enet_deinitialize();
+}
+
+Net::Connection *Net::getConnection()
+{
+    if (!client)
+    {
+        logger->error("Tried to instantiate a network object before "
+                "initializing the network subsystem!");
+    }
+
+    return new Net::Connection(client);
+}
+
+void Net::registerHandler(MessageHandler *handler)
+{
+    for (const Uint16 *i = handler->handledMessages; *i; i++)
+    {
+        mMessageHandlers[*i] = handler;
+    }
+}
+
+void Net::unregisterHandler(MessageHandler *handler)
+{
+    for (const Uint16 *i = handler->handledMessages; *i; i++)
+    {
+        mMessageHandlers.erase(*i);
+    }
+}
+
+void Net::clearHandlers()
+{
+    mMessageHandlers.clear();
+}
+
+
+/**
+ * Dispatches a message to the appropriate message handler and
+ * destroys it afterwards.
+ */
+namespace
+{
+    void dispatchMessage(ENetPacket *packet)
+    {
+        MessageIn msg((const char *)packet->data, packet->dataLength);
+
+        MessageHandlerIterator iter = mMessageHandlers.find(msg.getId());
+
+        if (iter != mMessageHandlers.end()) {
+            //logger->log("Received packet %x (%i B)",
+            //        msg.getId(), msg.getLength());
+            iter->second->handleMessage(msg);
+        }
+        else {
+            logger->log("Unhandled packet %x (%i B)",
+                    msg.getId(), msg.getLength());
+        }
+
+        // Clean up the packet now that we're done using it.
+        enet_packet_destroy(packet);
+    }
+}
+
+void Net::flush()
+{
+    ENetEvent event;
+
+    // Wait up to 10 milliseconds for an event.
+    while (enet_host_service(client, &event, 10) > 0)
+    {
+        switch (event.type)
+        {
+            case ENET_EVENT_TYPE_CONNECT:
+                logger->log("Connected to port %d.", event.peer->address.port);
+                // Store any relevant server information here.
+                event.peer->data = 0;
+                break;
+
+            case ENET_EVENT_TYPE_RECEIVE:
+                dispatchMessage(event.packet);
+                break;
+
+            case ENET_EVENT_TYPE_DISCONNECT:
+                logger->log("Disconnected.");
+                // Reset the server information.
+                event.peer->data = 0;
+                break;
+
+            case ENET_EVENT_TYPE_NONE:
+                logger->log("No event during 10 milliseconds.");
+                break;
+
+            default:
+                logger->log("Unhandled enet event.");
+                break;
+        }
+    }
+}