private void BeginSending()
{
// If write buffer is empty, try to read new data from the encoder.
if (m_writeSize == 0)
{
// First two bytes (sizeof uint16_t) are used to store message
// offset in following steps. Note that by passing our buffer to
// the get data function we prevent it from returning its own buffer.
var bf = new ByteArraySegment(m_outBuffer, sizeof(ushort));
int bfsz = m_outBufferSize - sizeof(ushort);
int offset = -1;
m_encoder.GetData(ref bf, ref bfsz, ref offset);
// If there are no data to write stop polling for output.
if (bfsz == 0)
{
m_state = State.ActiveSendingIdle;
return;
}
// Put offset information in the buffer.
m_writeSize = bfsz + sizeof(ushort);
m_outBuffer.PutUnsignedShort(m_options.Endian, offset == -1 ? (ushort)0xffff : (ushort)offset, 0);
}
try
{
m_socket.Send((byte[])m_outBuffer, m_outBuffer.Offset, m_writeSize, SocketFlags.None);
}
catch (SocketException ex)
{
NetMQException.Create(ex.SocketErrorCode);
}
}
