public Message(byte[] buffer, int offset)
: base(buffer, offset)
{
Contract.Requires <ArgumentNullException>(buffer != null, "buffer");
Contract.Requires <ArgumentException>(buffer.Length >= Message.MinimumByteSize, "buffer");
Contract.Requires <ArgumentOutOfRangeException>(offset >= 0, "offset");
Contract.Requires <ArgumentOutOfRangeException>(offset <= buffer.Length - Message.MinimumByteSize, "offset");
Network = (MessageNetwork)buffer.ReadUInt32(offset);
Command = Encoding.ASCII.GetString(buffer, Command_Offset(ref offset), MAX_COMMAND_LENGTH).TrimEnd('\0');
PayloadLength = buffer.ReadUInt32(PayloadLength_Offset(ref offset));
ByteSize = ((uint)Network).ByteSize() + MAX_COMMAND_LENGTH * BufferOperations.UINT8_SIZE + PayloadLength.ByteSize();
if (MessagePayloadFactory.PayloadRequiresChecksum(Command))
{
Checksum = buffer.ReadUInt32(Checksum_Offset(ref offset));
ByteSize += Checksum.ByteSize();
}
Payload = MessagePayloadFactory.ConstructMessagePayload(Command, buffer, Payload_Offset(ref offset), PayloadLength);
ByteSize += Payload.ByteSize;
}
private int Payload_Offset(ref int offset)
{
return(offset += (int)(MessagePayloadFactory.PayloadRequiresChecksum(Command) ? Checksum.ByteSize() : 0));
}
