/// <summary>
/// Writes message to to the output stream.
/// </summary>
/// <exception cref="IOException" />
public void Serialize(AbstractMessage message, Stream outputStream)
{
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 + CommandLength + 4 + 4];
Utils.Uint32ToByteArrayBe(_networkParameters.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 < CommandLength; i++)
{
header[4 + i] = (byte)(name[i]);
}
var payload = message.BitcoinSerialize();
Utils.Uint32ToByteArrayLe((uint)payload.Length, header, 4 + CommandLength);
var hash = Utils.DoubleDigest(payload);
Array.Copy(hash, 0, header, 4 + CommandLength + 4, 4);
outputStream.Write(header);
outputStream.Write(payload);
if (Log.IsDebugEnabled)
{
Log.DebugFormat("Sending {0} message: {1}", name, Utils.BytesToHexString(header) + Utils.BytesToHexString(payload));
}
}
/// <summary>
/// Writes the given message out over the network using the protocol tag. For a Transaction
/// this should be "tx" for example. It's safe to call this from multiple threads simultaneously,
/// the actual writing will be serialized.
/// </summary>
/// <exception cref="IOException"/>
public virtual void WriteMessage(AbstractMessage message)
{
lock (_outputStream)
{
_serializer.Serialize(message, _outputStream);
}
}
