/// <summary>
/// </summary>
/// <param name="e"></param>
/// <param name="context">Used to enqueue bytes for delivery.</param>
/// <returns><c>true</c> if more buffers can be appened.</returns>
public bool Write(WriterContext context)
{
_writeBuffer = context.DequeueBuffer();
var len = CopyTo(_writeBuffer.Array, _writeBuffer.Offset);
context.Enqueue(new SendPacketsElement(_writeBuffer.Array, _writeBuffer.Offset, len));
return true;
}
/// <summary>
/// </summary>
/// <param name="e"></param>
/// <param name="context">Used to enqueue bytes for delivery.</param>
/// <returns><c>true</c> if more buffers can be appened.</returns>
public bool Write(WriterContext context)
{
if (_writeBytesLeftCorCurrentState != -1)
{
var bytesToCopy = Math.Min(_writeBuffer.Count, _writeBytesLeftCorCurrentState);
bytesToCopy = Math.Min(bytesToCopy, context.BytesLeftToEnqueue);
if (bytesToCopy < 10)
return false;
if (_payloadStream != null)
{
_payloadStream.Write(_writeBuffer.Array, 0, bytesToCopy);
}
else
{
Buffer.BlockCopy(_payloadBuffer.Array, _writePayloadBufferOffset, _writeBuffer.Array,
_writeBuffer.Offset, bytesToCopy);
}
_writeBytesLeftCorCurrentState -= bytesToCopy;
_writePayloadBufferOffset += bytesToCopy;
context.Enqueue(new ArraySegment<byte>(_writeBuffer.Array, _writeBuffer.Offset, bytesToCopy));
if (_writeBytesLeftCorCurrentState == 0)
{
return true;
}
return false;
}
_writeBuffer = context.DequeueBuffer();
_writePayloadBufferOffset = 0;
var offset = _writeBuffer.Offset;
var payloadLength = 0;
if (_payloadStream != null)
{
_writeBuffer.Array[offset++] = _payloadStream.Length > byte.MaxValue
? (byte) FrameFlags.LargeFrame
: (byte) 0;
payloadLength = (int) _payloadStream.Length;
}
else
{
if(_writeBuffer == WriterContext.EmptySegment)
throw new InvalidOperationException("If no serializer is used, you have to use either PayloadStream or PayloadBuffer property.");
_writeBuffer.Array[offset++] = PayloadBuffer.Count > byte.MaxValue
? (byte) FrameFlags.LargeFrame
: (byte) 0;
payloadLength = PayloadBuffer.Count;
}
var buf = BitConverter.GetBytes(SequenceNumber);
if (BitConverter.IsLittleEndian)
Array.Reverse(buf);
_writeBuffer.Array[offset++] = buf[0];
_writeBuffer.Array[offset++] = buf[1];
_writeBuffer.Array[offset++] = (byte) Destination.Length;
if (Destination.Length > 0)
{
Encoding.ASCII.GetBytes(Destination, 0, Destination.Length, _writeBuffer.Array, offset);
offset += Destination.Length;
}
if (_properties != null && _properties.Count > 0)
{
var filters = EncodeFilters();
var filterLen = BitConverter.GetBytes((short) filters.Length);
if (BitConverter.IsLittleEndian)
Array.Reverse(filterLen);
_writeBuffer.Array[offset++] = filterLen[0];
_writeBuffer.Array[offset++] = filterLen[1];
Encoding.ASCII.GetBytes(filters, 0, filters.Length, _writeBuffer.Array, offset);
offset += filters.Length;
}
else
{
_writeBuffer.Array[offset++] = 0;
_writeBuffer.Array[offset++] = 0;
}
//length
if (payloadLength > byte.MaxValue)
{
buf = BitConverter.GetBytes(payloadLength);
if (BitConverter.IsLittleEndian)
Array.Reverse(buf);
_writeBuffer.Array[offset++] = buf[0];
_writeBuffer.Array[offset++] = buf[1];
_writeBuffer.Array[offset++] = buf[2];
_writeBuffer.Array[offset++] = buf[3];
}
else
{
_writeBuffer.Array[offset++] = (byte) payloadLength;
}
_writeBytesLeftCorCurrentState = payloadLength;
var payloadBytesToCopy = Math.Min(_writeBuffer.Count - (offset - _writeBuffer.Offset),
_writeBytesLeftCorCurrentState);
if (_payloadStream != null)
{
_payloadStream.Write(_writeBuffer.Array, offset, payloadBytesToCopy);
}
else
{
Buffer.BlockCopy(_payloadBuffer.Array, _writePayloadBufferOffset, _writeBuffer.Array, offset,
payloadBytesToCopy);
}
payloadBytesToCopy = Math.Min(payloadBytesToCopy, context.BytesLeftToEnqueue);
_writeBytesLeftCorCurrentState -= payloadBytesToCopy;
_writePayloadBufferOffset += payloadBytesToCopy;
var size = (offset - _writeBuffer.Offset) + payloadBytesToCopy;
context.Enqueue(_writeBuffer.Array, _writeBuffer.Offset, size);
if (_writeBytesLeftCorCurrentState == 0)
return true;
return false;
}
/// <summary>
/// </summary>
/// <param name="e"></param>
/// <param name="context">Used to enqueue bytes for delivery.</param>
/// <returns><c>true</c> if more buffers can be appened.</returns>
public bool Write(WriterContext context)
{
//_sendCompleted = true when previous send is done. Init everything for this send.
if (_sendBuffer == WriterContext.EmptySegment)
_sendBuffer = context.DequeueBuffer();
var offset = _sendBuffer.Offset;
if (_sendCompleted)
{
var buffer = _sendBuffer.Array;
var len = GetContentLength();
if (len > 512)
_flags = _flags | FrameFlags.LargeFrame;
buffer[offset++] = (byte) _flags;
buffer[offset++] = _extensionId;
if (len > 512)
{
var lenBuffer = BitConverter.GetBytes(len);
if (BitConverter.IsLittleEndian)
Array.Reverse(lenBuffer);
buffer[offset++] = lenBuffer[0];
buffer[offset++] = lenBuffer[1];
buffer[offset++] = lenBuffer[2];
buffer[offset++] = lenBuffer[3];
}
else
{
buffer[offset++] = (byte) len;
}
var bytesLeft = _sendBuffer.Count - (offset - _sendBuffer.Offset);
_sendCompleted = WritePayload(buffer, ref offset, bytesLeft);
}
else
{
var buffer = _sendBuffer.Array;
_sendCompleted = WritePayload(buffer, ref offset, _sendBuffer.Count);
}
var bytesWritten = offset - _sendBuffer.Offset;
context.Enqueue(_sendBuffer.Array, _sendBuffer.Offset, bytesWritten);
return _sendCompleted;
}