/*
 * call-seq:
 *      msg_type -> integer
 *
 * The user-defined "type" of the message. This can be set when the
 * message is broadcast via Spread::Connection#multicast; if not
 * defined, it defaults to 0.
 */
static VALUE
data_msg_type(VALUE obj)
{
    struct SpreadMessage *sp_mess;

    Data_Get_Struct(obj, struct SpreadMessage, sp_mess);
    return INT2FIX(sp_mess->msg_type);
}