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Diffstat (limited to 'qpid/dotnet/client-010/client/transport/network/InputHandler.cs')
-rw-r--r--qpid/dotnet/client-010/client/transport/network/InputHandler.cs266
1 files changed, 0 insertions, 266 deletions
diff --git a/qpid/dotnet/client-010/client/transport/network/InputHandler.cs b/qpid/dotnet/client-010/client/transport/network/InputHandler.cs
deleted file mode 100644
index c5d5f13727..0000000000
--- a/qpid/dotnet/client-010/client/transport/network/InputHandler.cs
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
-*
-* Licensed to the Apache Software Foundation (ASF) under one
-* or more contributor license agreements. See the NOTICE file
-* distributed with this work for additional information
-* regarding copyright ownership. The ASF licenses this file
-* to you under the Apache License, Version 2.0 (the
-* "License"); you may not use this file except in compliance
-* with the License. You may obtain a copy of the License at
-*
-* http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing,
-* software distributed under the License is distributed on an
-* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-* KIND, either express or implied. See the License for the
-* specific language governing permissions and limitations
-* under the License.
-*
-*/
-using System;
-using System.IO;
-using System.Text;
-using org.apache.qpid.transport.util;
-
-namespace org.apache.qpid.transport.network
-{
- /// <summary>
- /// InputHandler
- /// </summary>
- public sealed class InputHandler : IReceiver<ReceivedPayload<INetworkEvent>>
- {
- public enum State
- {
- PROTO_HDR,
- FRAME_HDR,
- FRAME_BODY,
- ERROR
- }
-
- private static readonly Logger log = Logger.Get(typeof(InputHandler));
- private readonly Object m_objectLock = new object();
-
- // the event raised when a buffer is read from the wire
- public event EventHandler<ReceivedPayload<INetworkEvent>> ReceivedEvent;
- public event EventHandler<ExceptionArgs> ExceptionProcessing;
-
- // Not in used... This even is never raised in the code => the application will block on Close() until the timeout is reached
- public event EventHandler Closed;
-
- event EventHandler<ReceivedPayload<INetworkEvent>> IReceiver<ReceivedPayload<INetworkEvent>>.Received
- {
- add
- {
- lock (m_objectLock)
- {
- ReceivedEvent += value;
- }
- }
- remove
- {
- lock (m_objectLock)
- {
- ReceivedEvent -= value;
- }
- }
- }
-
- event EventHandler<ExceptionArgs> IReceiver<ReceivedPayload<INetworkEvent>>.Exception
- {
- add
- {
- lock (m_objectLock)
- {
- ExceptionProcessing += value;
- }
- }
- remove
- {
- lock (m_objectLock)
- {
- ExceptionProcessing -= value;
- }
- }
- }
-
- private State state;
- private MemoryStream input;
- private int needed;
-
- private byte flags;
- private SegmentType type;
- private byte track;
- private int channel;
-
- public InputHandler(State state)
- {
- this.state = state;
- switch (state)
- {
- case State.PROTO_HDR:
- needed = 8;
- break;
- case State.FRAME_HDR:
- needed = Frame.HEADER_SIZE;
- break;
- }
- }
-
- // The command listening for a buffer read.
- public void On_ReceivedBuffer(object sender, ReceivedPayload<MemoryStream> payload)
- {
- MemoryStream buf = payload.Payload;
- int remaining = (int) buf.Length;
- if( input != null )
- {
- remaining += (int) input.Length;
- }
- try
- {
- while (remaining > 0)
- {
- if (remaining >= needed)
- {
- if (input != null)
- {
- byte[] tmp = new byte[buf.Length];
- buf.Read(tmp, 0, tmp.Length);
- input.Write(tmp, 0, tmp.Length);
- input.Seek(0, SeekOrigin.Begin);
- buf = input;
- }
- int startPos = (int)buf.Position;
- int consumed = needed;
- state = Next(buf);
- if ((buf.Position - startPos) < consumed)
- {
- buf.Seek(consumed - (buf.Position - startPos), SeekOrigin.Current);
- }
- remaining -= consumed;
- input = null;
- }
- else
- {
- byte[] tmp;
- if (input == null)
- {
- input = new MemoryStream();
- tmp = new byte[remaining];
- }
- else
- {
- // this is a full buffer
- tmp = new byte[buf.Length];
- }
- buf.Read(tmp, 0, tmp.Length);
- input.Write(tmp, 0, tmp.Length);
- remaining = 0;
- }
- }
- }
- catch (Exception t)
- {
- Console.Write(t);
- if (ExceptionProcessing != null)
- {
- ExceptionProcessing(this, new ExceptionArgs(t));
- }
- }
- }
-
- #region Private Support Functions
-
- private State Next(MemoryStream buf)
- {
- BinaryReader reader = new BinaryReader(buf);
-
- switch (state)
- {
- case State.PROTO_HDR:
- char a = reader.ReadChar();
- char m = reader.ReadChar();
- char q = reader.ReadChar();
- char p = reader.ReadChar();
- if (a != 'A' &&
- m != 'M' &&
- q != 'Q' &&
- p != 'P')
- {
- Error("bad protocol header: {0}", buf.ToString());
- return State.ERROR;
- }
- reader.ReadByte();
- byte instance = reader.ReadByte();
- byte major = reader.ReadByte();
- byte minor = reader.ReadByte();
- Fire_NetworkEvent(new ProtocolHeader(instance, major, minor));
- needed = Frame.HEADER_SIZE;
- return State.FRAME_HDR;
- case State.FRAME_HDR:
- reader = new BinaryReader(buf, Encoding.BigEndianUnicode);
- flags = reader.ReadByte();
- type = SegmentTypeGetter.Get(reader.ReadByte()); // generated code
- int size = reader.ReadUInt16();
- size = ByteEncoder.GetBigEndian((UInt16)size);
- size -= Frame.HEADER_SIZE;
- if (size < 0 || size > (64 * 1024 - 12))
- {
- Error("bad frame size: {0:d}", size);
- return State.ERROR;
- }
- reader.ReadByte();
- byte b = reader.ReadByte();
- if ((b & 0xF0) != 0)
- {
- Error("non-zero reserved bits in upper nibble of " +
- "frame header byte 5: {0}", b);
- return State.ERROR;
- }
- track = (byte)(b & 0xF);
- channel = reader.ReadUInt16();
- channel = ByteEncoder.GetBigEndian((UInt16)channel);
- if (size == 0)
- {
- Fire_NetworkEvent(new Frame(flags, type, track, channel, 0, new MemoryStream()));
- needed = Frame.HEADER_SIZE;
- return State.FRAME_HDR;
- }
- needed = size;
- return State.FRAME_BODY;
- case State.FRAME_BODY:
- Fire_NetworkEvent(new Frame(flags, type, track, channel, needed, buf));
- needed = Frame.HEADER_SIZE;
- return State.FRAME_HDR;
- default:
- if (ExceptionProcessing != null)
- {
- ExceptionProcessing(this, new ExceptionArgs(new Exception("Error creating frame")));
- }
- throw new Exception("Error creating frame");
- }
- }
-
- private void Error(String fmt, params Object[] args)
- {
- Fire_NetworkEvent(new ProtocolError(Frame.L1, fmt, args));
- }
-
- private void Fire_NetworkEvent(INetworkEvent netevent)
- {
- log.Debug("InputHandler: network event:", netevent);
- ReceivedPayload<INetworkEvent> payload = new ReceivedPayload<INetworkEvent>();
- payload.Payload = netevent;
- if (ReceivedEvent != null)
- {
- ReceivedEvent(this, payload);
- }
- else
- {
- log.Debug("Nobody listening for event: {0}");
- }
- }
-
- #endregion
- }
-} \ No newline at end of file
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