dbus-sharp/Message.cs

   1 // Copyright 2006 Alp Toker <alp@atoker.com>
   2 // This software is made available under the MIT License
   3 // See COPYING for details
   4
   5 using System;
   6 using System.Collections.Generic;
   7 using System.IO;
   8
   9 namespace Wv
  10 {
  11         public class Message
  12         {
  13                 public Message ()
  14                 {
  15                         Header.Endianness = Connection.NativeEndianness;
  16                         Header.MessageType = MessageType.MethodCall;
  17                         Header.Flags = HeaderFlag.NoReplyExpected; //TODO: is this the right place to do this?
  18                         Header.MajorVersion = Protocol.Version;
  19                         Header.Fields = new Dictionary<FieldCode,object> ();
  20                 }
  21
  22                 public Header Header;
  23
  24                 public Connection Connection;
  25
  26                 public Signature Signature
  27                 {
  28                         get {
  29                                 object o;
  30                                 if (Header.Fields.TryGetValue (FieldCode.Signature, out o))
  31                                         return (Signature)o;
  32                                 else
  33                                         return Signature.Empty;
  34                         } set {
  35                                 if (value == Signature.Empty)
  36                                         Header.Fields.Remove (FieldCode.Signature);
  37                                 else
  38                                         Header.Fields[FieldCode.Signature] = value;
  39                         }
  40                 }
  41
  42                 public bool ReplyExpected
  43                 {
  44                         get {
  45                                 return (Header.Flags & HeaderFlag.NoReplyExpected) == HeaderFlag.None;
  46                         } set {
  47                                 if (value)
  48                                         Header.Flags &= ~HeaderFlag.NoReplyExpected; //flag off
  49                                 else
  50                                         Header.Flags |= HeaderFlag.NoReplyExpected; //flag on
  51                         }
  52                 }
  53
  54                 //public HeaderField[] HeaderFields;
  55                 //public Dictionary<FieldCode,object>;
  56
  57                 public byte[] Body;
  58
  59                 //TODO: make use of Locked
  60                 /*
  61                 protected bool locked = false;
  62                 public bool Locked
  63                 {
  64                         get {
  65                                 return locked;
  66                         }
  67                 }
  68                 */
  69
  70                 public void SetHeaderData (byte[] data)
  71                 {
  72                         EndianFlag endianness = (EndianFlag)data[0];
  73                         MessageReader reader = new MessageReader (endianness, data);
  74
  75                         Header = (Header)reader.ReadStruct (typeof (Header));
  76                 }
  77
  78                 public byte[] GetHeaderData ()
  79                 {
  80                         if (Body != null)
  81                                 Header.Length = (uint)Body.Length;
  82
  83                         MessageWriter writer = new MessageWriter (Header.Endianness);
  84                         writer.WriteValueType (Header, typeof (Header));
  85                         writer.CloseWrite ();
  86
  87                         return writer.ToArray ();
  88                 }
  89         }
  90 }