public override int Read(byte[] buffer, int offset, int count)
{
int num = 0;
while (count != 0)
{
if (this.atEof)
{
return(num);
}
if (this.chunkBufferSize <= 0)
{
if (this.chunkBytesRemaining > 0)
{
int num1 = this.ReadCore(buffer, offset, Math.Min(count, this.chunkBytesRemaining + 5));
this.DecodeData(buffer, offset, Math.Min(num1, this.chunkBytesRemaining));
if (num1 <= this.chunkBytesRemaining)
{
num = num + num1;
Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream singletonInputConnectionStream = this;
singletonInputConnectionStream.chunkBytesRemaining = singletonInputConnectionStream.chunkBytesRemaining - num1;
}
else
{
num = num + this.chunkBytesRemaining;
int num2 = num1 - this.chunkBytesRemaining;
int num3 = offset + this.chunkBytesRemaining;
this.chunkBytesRemaining = 0;
this.DecodeSize(buffer, ref num3, ref num2);
}
return(num);
}
if (count >= 5)
{
int num4 = this.ReadCore(buffer, offset, 5);
int num5 = offset;
this.DecodeSize(buffer, ref num5, ref num4);
}
else
{
this.chunkBufferOffset = 0;
this.chunkBufferSize = this.ReadCore(this.chunkBuffer, 0, (int)this.chunkBuffer.Length);
this.DecodeSize(this.chunkBuffer, ref this.chunkBufferOffset, ref this.chunkBufferSize);
}
}
else
{
int num6 = Math.Min(this.chunkBytesRemaining, Math.Min(this.chunkBufferSize, count));
Buffer.BlockCopy(this.chunkBuffer, this.chunkBufferOffset, buffer, offset, num6);
this.DecodeData(this.chunkBuffer, this.chunkBufferOffset, num6);
Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream singletonInputConnectionStream1 = this;
singletonInputConnectionStream1.chunkBufferOffset = singletonInputConnectionStream1.chunkBufferOffset + num6;
Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream singletonInputConnectionStream2 = this;
singletonInputConnectionStream2.chunkBufferSize = singletonInputConnectionStream2.chunkBufferSize - num6;
Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream singletonInputConnectionStream3 = this;
singletonInputConnectionStream3.chunkBytesRemaining = singletonInputConnectionStream3.chunkBytesRemaining - num6;
if (this.chunkBytesRemaining == 0 && this.chunkBufferSize > 0)
{
this.DecodeSize(this.chunkBuffer, ref this.chunkBufferOffset, ref this.chunkBufferSize);
}
num = num + num6;
offset = offset + num6;
count = count - num6;
}
}
return(num);
}
public ReadAsyncResult(Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream parent, byte[] buffer, int offset, int count, AsyncCallback callback, object state) : base(callback, state)
{
this.parent = parent;
this.result = this.parent.Read(buffer, offset, count);
base.Complete(true);
}
public Message Receive(TimeSpan timeout)
{
Message message;
ServiceModelActivity serviceModelActivity;
SecurityMessageProperty securityMessageProperty;
byte[] numArray = this.transportSettings.BufferManager.TakeBuffer(this.connection.AsyncReadBufferSize);
if (this.size > 0)
{
Buffer.BlockCopy(this.connection.AsyncReadBuffer, this.offset, numArray, this.offset, this.size);
}
try
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
while (!this.DecodeBytes(numArray, ref this.offset, ref this.size, ref this.isAtEof))
{
if (!this.isAtEof)
{
if (this.size != 0)
{
continue;
}
this.offset = 0;
this.size = this.connection.Read(numArray, 0, (int)numArray.Length, timeoutHelper.RemainingTime());
if (this.size != 0)
{
continue;
}
this.DoneReceiving(true, timeoutHelper.RemainingTime());
message = null;
return(message);
}
else
{
this.DoneReceiving(true, timeoutHelper.RemainingTime());
message = null;
return(message);
}
}
Microsoft.ServiceBus.Channels.IConnection preReadConnection = this.connection;
if (this.size > 0)
{
byte[] numArray1 = Microsoft.ServiceBus.Diagnostics.DiagnosticUtility.Utility.AllocateByteArray(this.size);
Buffer.BlockCopy(numArray, this.offset, numArray1, 0, this.size);
preReadConnection = new Microsoft.ServiceBus.Channels.PreReadConnection(preReadConnection, numArray1);
}
Stream singletonInputConnectionStream = new Microsoft.ServiceBus.Channels.SingletonConnectionReader.SingletonInputConnectionStream(this, preReadConnection, this.transportSettings);
this.inputStream = new Microsoft.ServiceBus.Channels.MaxMessageSizeStream(singletonInputConnectionStream, this.transportSettings.MaxReceivedMessageSize);
if (Microsoft.ServiceBus.Diagnostics.DiagnosticUtility.ShouldUseActivity)
{
serviceModelActivity = ServiceModelActivity.CreateBoundedActivity(true);
}
else
{
serviceModelActivity = null;
}
using (serviceModelActivity)
{
Message message1 = null;
try
{
message1 = this.transportSettings.MessageEncoderFactory.Encoder.ReadMessage(this.inputStream, this.transportSettings.MaxBufferSize, this.ContentType);
}
catch (XmlException xmlException1)
{
XmlException xmlException = xmlException1;
throw Microsoft.ServiceBus.Diagnostics.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ProtocolException(Microsoft.ServiceBus.SR.GetString(Resources.MessageXmlProtocolError, new object[0]), xmlException));
}
message1.Properties.Via = this.via;
MessageProperties properties = message1.Properties;
if (this.security != null)
{
securityMessageProperty = (SecurityMessageProperty)this.security.CreateCopy();
}
else
{
securityMessageProperty = null;
}
properties.Security = securityMessageProperty;
this.PrepareMessage(message1);
message = message1;
}
}
finally
{
this.transportSettings.BufferManager.ReturnBuffer(numArray);
}
return(message);
}
