New inter-thread message system.

1 files changed, 66 insertions, 0 deletions

diff --git a/src/messagehandler.h b/src/messagehandler.h
new file mode 100644
index 0000000..9812777
--- /dev/null
+++ b/src/messagehandler.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            messagehandler.h
+ *
+ *  Fri Jun 14 20:30:43 CEST 2013
+ *  Copyright 2013 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#ifndef __DRUMGIZMO_MESSAGEHANDLER_H__
+#define __DRUMGIZMO_MESSAGEHANDLER_H__
+
+#include <map>
+
+#include "message.h"
+#include "mutex.h"
+
+typedef enum {
+  MSGRCV_ENGINE = 1,
+  MSGRCV_UI = 2,
+  MSGRCV_LOADER = 3,
+} message_receiver_id_t;
+
+class MessageReceiver;
+
+class MessageHandler {
+public:
+  MessageHandler();
+
+  void addReceiver(message_receiver_id_t id, MessageReceiver *receiver);
+  void removeReceiver(MessageReceiver *receiver);
+
+  /**
+   * Send Message to receiver with specified id.
+   * @return Return true if id is registered. Return false if id is not
+   * currently registered.
+   */
+  bool sendMessage(message_receiver_id_t id, Message* msg);
+
+private:
+  std::map<message_receiver_id_t, MessageReceiver *> receivers;
+
+  Mutex mutex;
+};
+
+// Global MessageHandler;
+extern MessageHandler msghandler;
+
+#endif/*__DRUMGIZMO_MESSAGEHANDLER_H__*/