72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
// Copyright (c) 2013-2015 United States Government as represented by the Administrator of the
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// National Aeronautics and Space Administration. All Rights Reserved.
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#ifndef XPCPLUGIN_MESSAGEHANDLERS_H_
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#define XPCPLUGIN_MESSAGEHANDLERS_H_
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#include "Message.h"
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#include <string>
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#include <map>
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namespace XPC
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{
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/// A function that handles a message.
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typedef void(*MessageHandler)(const Message&);
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/// Handles incommming messages and manages connections.
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///
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/// \author Jason Watkins
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/// \version 1.1
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/// \since 1.0
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/// \date Intial Version: 2015-04-12
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/// \date Last Updated: 2015-05-11
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class MessageHandlers
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{
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public:
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/// The first stop for all messages to the plugin after they are read from the
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/// socket.
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///
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/// \details After a message is read, HandleMessage analyzes the sender's network address
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/// to determine whether the sender is a new client. It then either loads
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/// connection details for an existing client, or creates a new connection record
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/// for new clients. Finally, the message handler checks the message type and
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/// dispatches the message to the appropriate handler.
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/// \param msg The message to be processed.
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static void HandleMessage(Message& msg);
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/// Sets the socket that message handlers use to send responses.
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static void SetSocket(UDPSocket* socket);
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private:
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// One handler per message type. Message types are descripbed on the
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// wiki at https://github.com/nasa/XPlaneConnect/wiki/Network-Information
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static void HandleConn(const Message& msg);
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static void HandleCtrl(const Message& msg);
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static void HandleData(const Message& msg);
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static void HandleDref(const Message& msg);
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static void HandleGetD(const Message& msg);
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static void HandlePosi(const Message& msg);
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static void HandleSimu(const Message& msg);
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static void HandleText(const Message& msg);
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static void HandleWypt(const Message& msg);
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static void HandleView(const Message& msg);
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static void HandleXPlaneData(const Message& msg);
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static void HandleUnknown(const Message& msg);
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typedef struct
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{
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unsigned char id;
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sockaddr addr;
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unsigned char getdCount;
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std::string getdRequest[255];
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} ConnectionInfo;
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static std::map<std::string, ConnectionInfo> connections;
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static std::map<std::string, MessageHandler> handlers;
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static std::string connectionKey; // The current connection ip:port string
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static ConnectionInfo connection; // The current connection record
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static UDPSocket* sock; // Outgoing network socket
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};
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}
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#endif
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