diff options
Diffstat (limited to 'Ivy/IvyPPC/IvyTCPStreamV3.cs')
| -rw-r--r-- | Ivy/IvyPPC/IvyTCPStreamV3.cs | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/Ivy/IvyPPC/IvyTCPStreamV3.cs b/Ivy/IvyPPC/IvyTCPStreamV3.cs deleted file mode 100644 index 4eef12c..0000000 --- a/Ivy/IvyPPC/IvyTCPStreamV3.cs +++ /dev/null @@ -1,254 +0,0 @@ -using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-using System.Collections;
-using System.Collections.Specialized;
-using System.IO;
-
-namespace IvyBus
-{
- /// <summary>
- /// Description résumée de IvyStream.
- /// </summary>
- internal class IvyTCPStreamV3 : NetworkStream, IvyProtocol
- {
- StreamReader input;
- StreamWriter output;
- IvyProtocol receiver;
-
- /// the protocol separator
- internal const char ARG_START = '\x02';
- internal const char ARG_END = '\x03';
- internal const char MSG_END = '\n';
-
- internal IvyTCPStreamV3(Socket socket, IvyProtocol _receiver) : base ( socket )
- {
- output = new StreamWriter(this, Encoding.ASCII);
- output.NewLine = MSG_END.ToString();
- input = new StreamReader(this, Encoding.ASCII);
- receiver = _receiver;
- }
- /* the protocol magic numbers */
- internal enum MessageType : ushort
- {
- Bye = 0, /* end of the peer */
- AddRegexp = 1, /* the peer adds a regexp */
- Msg = 2, /* the peer sends a message */
- Error = 3, /* error message */
- DelBinding = 4, /* the peer removes one of his regex */ // OLD DelRegexp rename to DelBinding
- EndRegexp = 5, /* no more regexp in the handshake */
- StartRegexp = 6, /* avoid race condition in concurrent connexions */
- DirectMsg = 7, /* the peer sends a direct message */
- Die = 8, /* the peer wants us to quit */
- Ping = 9, /* checks the presence of the other */
- Pong = 10, /* checks the presence of the other */
- };
-
- /*
- * message Syntax:
- * this is text formated message 'type id STX ARG0 {[ETX] ARG1 [ETX] ARGn}\n'
- *
- * message Format:
- MessageType, id , length, string
- */
-
- private void sendMsg(MessageType msgType, ushort msgId, string msgData)
- {
- // IOException Should be traited upstairs
- output.Write((ushort)msgType);
- output.Write(' ');
- output.Write(msgId);
- output.Write(ARG_START);
- output.Write(msgData);
- output.Write(MSG_END);
- output.Flush();
-
- }
- void IvyProtocol.TokenStartRegexp(ushort port, string appName)
- {
- sendMsg(MessageType.StartRegexp, port, appName);
- }
- void IvyProtocol.TokenEndRegexp()
- {
- sendMsg(MessageType.EndRegexp, 0, "");
- }
- void IvyProtocol.TokenApplicationId(ushort priority, string appId)
- {
- // NOt implemented in this protocol version
- }
-
- void IvyProtocol.TokenAddBinding(BindingType type, ushort id, string expression)
- {
- switch (type)
- {
- case BindingType.Regexp:
- sendMsg(MessageType.AddRegexp, id, expression); /* perhaps we should perform some checking here */
- break;
- case BindingType.Simple:
- // NO Simple Binding in this protocol
- break;
- }
- }
-
- void IvyProtocol.TokenDelBinding(ushort id)
- {
- sendMsg(MessageType.DelBinding, id, "");
- }
-
- void IvyProtocol.TokenDirectMsg(ushort id, string message)
- {
- sendMsg(MessageType.DirectMsg, id, message);
- }
- void IvyProtocol.TokenPong(string s)
- {
- sendMsg(MessageType.Pong, 0, s);
- }
- void IvyProtocol.TokenPing(string s)
- {
- sendMsg(MessageType.Ping, 0, s);
- }
-
- void IvyProtocol.TokenBye(ushort id, string message)
- {
- sendMsg(MessageType.Bye, id, message);
- }
-
- void IvyProtocol.TokenDie(ushort id, string message)
- {
- sendMsg(MessageType.Die, id, message);
- }
-
- void IvyProtocol.TokenMsg(ushort key, string[] args)
- {
- string delimiter = "" + ARG_END;
- string data = string.Join(delimiter, args);
- // a bad protocol implementation in C add a delimiter to the end of each arg
- // we must add a delimiter to the end
- data += delimiter;
- sendMsg(MessageType.Msg, key, data);
- }
-
- void IvyProtocol.TokenError(ushort key, string arg)
- {
- sendMsg(MessageType.Msg, key, arg);
- }
-
- private ushort DeserializeShort()
- {
- int read;
- ushort ret = 0;
- char digit;
- // this will eat next non digit char ie space
- do
- {
- read = input.Read();
- if (read < 0)
- throw new EndOfStreamException();
- digit = (char)read;
- if (Char.IsDigit(digit))
- ret = (ushort)(ret * 10 + (digit - 0x30));
- } while (Char.IsDigit(digit));
- return ret;
- }
- private string DeserializeString(char sep)
- {
- int read;
- char car;
- StringBuilder str = new StringBuilder();
- // this will eat next non separator char
- do
- {
- read = input.Read();
- if (read < 0)
- throw new EndOfStreamException();
- car = (char)read;
- if (car != sep ) str.Append(car);
- } while (car != sep);
- return str.ToString();
- }
-
- bool IvyProtocol.receiveMsg()
- {
- MessageType msgType = MessageType.Die;
- ushort msgId = 0;
- string msgData = null;
-
- try
- {
- msgType = (MessageType)DeserializeShort();
- msgId = DeserializeShort();
- msgData = DeserializeString(MSG_END);
-
- switch (msgType)
- {
- case MessageType.Die:
- receiver.TokenDie(msgId, msgData);
- break;
-
- case MessageType.Bye:
- receiver.TokenBye(msgId, msgData);
- break;
-
- case MessageType.AddRegexp:
- receiver.TokenAddBinding(BindingType.Regexp, msgId, msgData);
- break;
-
- case MessageType.DelBinding:
- receiver.TokenDelBinding(msgId);
- break;
-
- case MessageType.EndRegexp:
- receiver.TokenEndRegexp();
- break;
-
- case MessageType.Msg:
- // a bad protocol implementation in C add a delimiter to the end of each arg
- // we must remove a delimiter to the end
- if ( msgData.Length > 0 )
- msgData = msgData.Remove(msgData.Length - 1,1);
- receiver.TokenMsg(msgId, msgData.Split( ARG_END ));
- break;
-
- case MessageType.Pong:
- receiver.TokenPong(msgData);
- break;
-
- case MessageType.Ping:
- receiver.TokenPing(msgData);
- break;
-
- case MessageType.Error:
- receiver.TokenError(msgId, msgData);
- break;
-
- case MessageType.StartRegexp:
- receiver.TokenStartRegexp(msgId, msgData);
- break;
-
- case MessageType.DirectMsg:
- receiver.TokenDirectMsg(msgId, msgData);
- break;
- default:
- throw new IvyException("protocol error, unknown message type " + msgType);
-
- }
-
-
-
- }
- catch (EndOfStreamException)
- {
- return false;
- }
- catch (FormatException)
- {
- throw new IvyException("protocol error on msgType");
- }
-
-
- return true;
- }
-
- }
-}
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