/// <summary>
/// Writes message to to the output stream.
/// </summary>
/// <exception cref="System.IO.IOException" />
public void Serialize(Message message, Stream @out)
{
string name;
if (!_names.TryGetValue(message.GetType(), out name))
{
throw new Exception("BitcoinSerializer doesn't currently know how to serialize " + message.GetType());
}
var header = new byte[4 + _commandLen + 4 + (_usesChecksumming ? 4 : 0)];
Utils.Uint32ToByteArrayBe(_params.PacketMagic, header, 0);
// The header array is initialized to zero so we don't have to worry about
// NULL terminating the string here.
for (var i = 0; i < name.Length && i < _commandLen; i++)
{
header[4 + i] = (byte)name[i];
}
var payload = message.BitcoinSerialize();
Utils.Uint32ToByteArrayLe((uint)payload.Length, header, 4 + _commandLen);
if (_usesChecksumming)
{
var hash = Utils.DoubleDigest(payload);
Array.Copy(hash, 0, header, 4 + _commandLen + 4, 4);
}
@out.Write(header);
@out.Write(payload);
_log.DebugFormat("Sending {0} message: {1}", name, Utils.BytesToHexString(header) + Utils.BytesToHexString(payload));
}