1 files changed, 87 insertions, 0 deletions
diff --git a/mcop/notification.h b/mcop/notification.h
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+++ b/mcop/notification.h
@@ -0,0 +1,87 @@
+    /*
+
+    Copyright (C) 2000 Stefan Westerfeld
+                       stefan@space.twc.de
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+  
+    This library 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
+    Library General Public License for more details.
+   
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+
+    */
+
+#ifndef NOTIFICATION_H
+#define NOTIFICATION_H
+
+#include <queue>
+#include "arts_export.h"
+
+namespace Arts {
+
+/*
+ * BC - Status (2002-03-08): Notification, NotificationClient,
+ *   NotificationManager
+ *
+ * All need to be kept BC, NotificationManager with usual d ptr.
+ *
+ * Notifications have to be FAST. Currently, they use ID, data & receiver.
+ * However, there may be future extensions. For this, one more internal
+ * field is provided. Set it to ZERO currently when sending notifications.
+ */
+
+struct Notification;
+typedef void (*NotificationDestroyFunction)(const Notification& n);
+
+struct Notification {
+	class NotificationClient *receiver;
+	int ID;
+	void *data;
+	void *internal;		/* handle with care, equivalent to private d ptr */
+
+	void setDestroy(NotificationDestroyFunction destroy);
+};
+
+class ARTS_EXPORT NotificationClient {
+public:
+	virtual void notify(const Notification& wm);
+};
+
+class NotificationManagerPrivate;
+class ARTS_EXPORT NotificationManager {
+private:
+	NotificationManagerPrivate *d;		// unused
+protected:
+	std::queue<Notification> todo;
+	static NotificationManager *instance;
+
+public:
+	NotificationManager();
+	~NotificationManager();
+
+	static inline NotificationManager *the()
+	{
+		return instance;
+	}
+	void send(Notification wm);
+	inline bool pending()
+	{
+		return !todo.empty();
+	}
+	bool run();
+	void removeClient(NotificationClient *client);
+
+};
+
+}
+
+#endif /* NOTIFICATION_H */