Derive message from GLib.Object

[ECC_OK]

Protobuf.Message should derive from GLib.Object which makes it possible to use RTTI on them.

[Robert Ancell (robert-ancell)]

What sort of operation specifically did you want to use? I intentionally didn't extend GLib.Object as this would have more overhead for no particular benefit.

[ECC_OK (prometheus-unterderbruecke)]

I am currently writing a Mumble compatible voicechat application.

Mumble uses a TCP connection and prepends every protobuf message with a header that specifies the message kind.

I am using typeof(...) to store the types of the protobuf messages in a hash map:

  this.message_types = new Gee.HashMap<int, Type> ();
  this.message_types[ 0] = typeof(Mumble.Version);
  this.message_types[ 1] = typeof(Mumble.UDPTunnel);
  this.message_types[ 2] = typeof(Mumble.Authenticate);

This makes both creation of objects from the header and creating the header from the object much easier.

Receiving:

  if (this.message_types.has_key (prefix.message_type)) {
   var type = this.message_types[prefix.message_type];
   Protobuf.Message msg = Object.new (type) as Protobuf.Message;
   if (msg is Mumble.UDPTunnel) {

Sending:

  prefix.message_type = this.type_messages[message.get_type ()];