// Listing 04 code/ch18 int TextListener::play_message (ACE_FILE_Addr &addr) { MessageType *type = Util::identify_message (addr); if (type->is_text ()) { Command *c = new Command (); c->command_ = Command::CMD_PLAY_MESSAGE; c->extra_data_ = &addr; c = this->command_stream_->execute (c); return c->numeric_result_; } ACE_FILE_Addr temp (ACE_TEXT ("/tmp/outgoing_message.text")); ACE_FILE_IO *file; if (type->is_audio ()) file = Util::audio_to_text (addr, temp); else if (type->is_video ()) file = Util::video_to_text (addr, temp); else ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("Invalid message type %d\n"), type->get_codec ()), -1); int rval = this->play_message (temp); file->remove (); return rval; }