eibd/libserver/tpdu.h

   1 /*
   2     EIBD eib bus access and management daemon
   3     Copyright (C) 2005-2008 Martin Koegler <mkoegler@auto.tuwien.ac.at>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 */
  19
  20 #ifndef TPDU_H
  21 #define TPDU_H
  22
  23 #include "common.h"
  24
  25 /** enumaration of TPDU types */
  26 typedef enum
  27 {
  28   /** unknown TPDU */
  29   T_UNKNOWN,
  30   /** any connectionless TPDU */
  31   T_DATA_XXX_REQ,
  32   /** connectionoriented TPDU */
  33   T_DATA_CONNECTED_REQ,
  34   /** T_Connect */
  35   T_CONNECT_REQ,
  36   /** T_Disconnect */
  37   T_DISCONNECT_REQ,
  38   /** T_ACK */
  39   T_ACK,
  40   /** T_NACK */
  41   T_NACK,
  42 }
  43 TPDU_Type;
  44
  45 /** represents a TPDU */
  46 class TPDU
  47 {
  48 public:
  49   virtual ~ TPDU ()
  50   {
  51   }
  52
  53   virtual bool init (const CArray & c) = 0;
  54   /** convert to character array */
  55   virtual CArray ToPacket () = 0;
  56   /** decode content as string */
  57   virtual String Decode () = 0;
  58   /** gets TPDU type */
  59   virtual TPDU_Type getType () const = 0;
  60   /** converts character array to a TPDU */
  61   static TPDU *fromPacket (const CArray & c);
  62 };
  63
  64 class T_UNKNOWN_PDU:public TPDU
  65 {
  66 public:
  67   CArray pdu;
  68
  69   T_UNKNOWN_PDU ();
  70   bool init (const CArray & c);
  71   CArray ToPacket ();
  72   String Decode ();
  73   TPDU_Type getType () const
  74   {
  75     return T_UNKNOWN;
  76   }
  77 };
  78 class T_DATA_XXX_REQ_PDU:public TPDU
  79 {
  80 public:
  81   CArray data;
  82
  83   T_DATA_XXX_REQ_PDU ();
  84   bool init (const CArray & c);
  85   CArray ToPacket ();
  86   String Decode ();
  87   TPDU_Type getType () const
  88   {
  89     return T_DATA_XXX_REQ;
  90   }
  91 };
  92 class T_DATA_CONNECTED_REQ_PDU:public TPDU
  93 {
  94 public:
  95   uchar serno;
  96   CArray data;
  97
  98     T_DATA_CONNECTED_REQ_PDU ();
  99   bool init (const CArray & c);
 100   CArray ToPacket ();
 101   String Decode ();
 102   TPDU_Type getType () const
 103   {
 104     return T_DATA_CONNECTED_REQ;
 105   }
 106 };
 107 class T_CONNECT_REQ_PDU:public TPDU
 108 {
 109 public:
 110
 111   T_CONNECT_REQ_PDU ();
 112   bool init (const CArray & c);
 113   CArray ToPacket ();
 114   String Decode ();
 115   TPDU_Type getType () const
 116   {
 117     return T_CONNECT_REQ;
 118   }
 119 };
 120 class T_DISCONNECT_REQ_PDU:public TPDU
 121 {
 122 public:
 123
 124   T_DISCONNECT_REQ_PDU ();
 125   bool init (const CArray & c);
 126   CArray ToPacket ();
 127   String Decode ();
 128   TPDU_Type getType () const
 129   {
 130     return T_DISCONNECT_REQ;
 131   }
 132 };
 133 class T_ACK_PDU:public TPDU
 134 {
 135 public:
 136   uchar serno;
 137
 138   T_ACK_PDU ();
 139   bool init (const CArray & c);
 140   CArray ToPacket ();
 141   String Decode ();
 142   TPDU_Type getType () const
 143   {
 144     return T_ACK;
 145   }
 146 };
 147 class T_NACK_PDU:public TPDU
 148 {
 149 public:
 150   uchar serno;
 151
 152   T_NACK_PDU ();
 153   bool init (const CArray & c);
 154   CArray ToPacket ();
 155   String Decode ();
 156   TPDU_Type getType () const
 157   {
 158     return T_NACK;
 159   }
 160 };
 161
 162 #endif