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98 lines
5.3 KiB
C++
98 lines
5.3 KiB
C++
/// \file
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/// \brief Router plugin. Allows you to send to systems you are not directly connected to, and to route those messages
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///
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/// This file is part of RakNet Copyright 2003 Kevin Jenkins.
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///
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/// Usage of RakNet is subject to the appropriate license agreement.
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/// Creative Commons Licensees are subject to the
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/// license found at
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/// http://creativecommons.org/licenses/by-nc/2.5/
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/// Single application licensees are subject to the license found at
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/// http://www.jenkinssoftware.com/SingleApplicationLicense.html
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/// Custom license users are subject to the terms therein.
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/// GPL license users are subject to the GNU General Public
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/// License as published by the Free
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/// Software Foundation; either version 2 of the License, or (at your
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/// option) any later version.
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#ifndef __ROUTER_PLUGIN_H
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#define __ROUTER_PLUGIN_H
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class RakPeerInterface;
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#include "RakNetTypes.h"
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#include "PluginInterface.h"
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#include "DS_OrderedList.h"
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#include "DS_WeightedGraph.h"
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#include "PacketPriority.h"
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#include "SystemAddressList.h"
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#include "RouterInterface.h"
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#include "Export.h"
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#include "ConnectionGraph.h"
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/// \defgroup ROUTER_GROUP Router
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/// \ingroup PLUGINS_GROUP
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/// \ingroup ROUTER_GROUP
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/// \brief Used to route messages between peers
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class RAK_DLL_EXPORT Router : public PluginInterface , public RouterInterface
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{
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public:
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Router();
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virtual ~Router();
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// --------------------------------------------------------------------------------------------
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// User functions
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// --------------------------------------------------------------------------------------------
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/// We can restrict what kind of messages are routed by this plugin.
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/// This is useful for security, since you usually want to restrict what kind of messages you have to worry about from (as an example) other
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/// clients in a client / server system
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/// \param[in] restrict True to restrict what messages will be routed. False to not do so (default).
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void SetRestrictRoutingByType(bool restrict__);
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/// If types are restricted, this adds an allowed message type to be routed
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/// \param[in] messageId The type to not allow routing of.
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void AddAllowedType(unsigned char messageId);
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/// Removes a restricted type previously added with AddRestrictedType
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/// \param[in] messageId The type to no longer restrict routing of.
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void RemoveAllowedType(unsigned char messageId);
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/// Set the connection graph, which is a weighted graph of the topology of the network. You can easily get this from the
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/// ConnectionGraph plugin. See the 'router' sample for usage.
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/// This is necessary if you want to send (not necessary just to route).
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/// \param[in] connectionGraph A weighted graph representing the topology of the network.
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void SetConnectionGraph(DataStructures::WeightedGraph<ConnectionGraph::SystemAddressAndGroupId, unsigned short, false> *connectionGraph);
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/// Sends a bitstream to one or more systems. If multiple systems are specified, the message will be multicasted using a minimum spanning tree
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/// \pre You just have called SetConnectionGraph with a valid graph representing the network topology
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/// \note Single target sends from RakPeer with this plugin installed will also be routed. Sends from other plugins will also be routed as long as this plugin is attached first.
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/// \param[in] data The data to send
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/// \param[in] bitLength How many bits long data is
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/// \param[in] priority What priority level to send on.
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/// \param[in] reliability How reliability to send this data
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/// \param[in] orderingChannel When using ordered or sequenced packets, what channel to order these on.- Packets are only ordered relative to other packets on the same stream
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/// \param[in] recipients A list of recipients to send to. To send to one recipient, just pass a SystemAddress
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/// \return True on success, false mostly if the connection graph cannot find the destination.
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bool Send( char *data, BitSize_t bitLength, PacketPriority priority, PacketReliability reliability, char orderingChannel, SystemAddressList *recipients );
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bool Send( const char *data, BitSize_t bitLength, PacketPriority priority, PacketReliability reliability, char orderingChannel, SystemAddress systemAddress );
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// --------------------------------------------------------------------------------------------
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// Packet handling functions
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// --------------------------------------------------------------------------------------------
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virtual void OnAttach(RakPeerInterface *peer);
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virtual void OnDetach(RakPeerInterface *peer);
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virtual void OnShutdown(RakPeerInterface *peer);
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virtual void Update(RakPeerInterface *peer);
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virtual PluginReceiveResult OnReceive(RakPeerInterface *peer, Packet *packet);
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virtual void OnCloseConnection(RakPeerInterface *peer, SystemAddress systemAddress);
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protected:
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void SendTree(PacketPriority priority, PacketReliability reliability, char orderingChannel, DataStructures::Tree<ConnectionGraph::SystemAddressAndGroupId> *tree, const char *data, BitSize_t bitLength, RakNet::BitStream *out, SystemAddressList *recipients);
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void SerializePreorder(DataStructures::Tree<ConnectionGraph::SystemAddressAndGroupId> *tree, RakNet::BitStream *out, SystemAddressList *recipients) const;
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DataStructures::WeightedGraph<ConnectionGraph::SystemAddressAndGroupId, unsigned short, false> *graph;
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bool restrictByType;
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DataStructures::OrderedList<unsigned char,unsigned char> allowedTypes;
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RakPeerInterface *rakPeer;
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};
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#endif
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