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-rw-r--r--mcop/notification.cpp101
1 files changed, 101 insertions, 0 deletions
diff --git a/mcop/notification.cpp b/mcop/notification.cpp
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+ /*
+
+ Copyright (C) 2000-2001 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., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+ */
+
+#include "notification.h"
+#include "debug.h"
+#include "dispatcher.h"
+
+using namespace Arts;
+
+void NotificationClient::notify(const Notification&)
+{
+}
+
+NotificationManager::NotificationManager()
+{
+ arts_assert(!instance);
+ instance = this;
+}
+
+NotificationManager::~NotificationManager()
+{
+ arts_assert(instance);
+ instance = 0;
+}
+
+void NotificationManager::send(Notification wm)
+{
+ if (todo.empty()) {
+ // HACK: in order to not add a virtual function to IOManager we're calling addTimer with
+ // magic values. This call tells the ioManager that notifications are pending and
+ // NotificationManager::run() should get called soon.
+ Arts::Dispatcher::the()->ioManager()->addTimer(-1, 0);
+ }
+ todo.push(wm);
+}
+
+bool NotificationManager::run()
+{
+ if(todo.empty()) return false;
+
+ while(!todo.empty())
+ {
+ Notification wm = todo.front();
+ todo.pop();
+
+ /*
+ * we'll copy and remove the notification first, to be sure that
+ * nothing bad happens to it if we rebuild "todo" (for instance in
+ * removeClient)
+ */
+ wm.receiver->notify(wm);
+ }
+ return true;
+}
+
+void NotificationManager::removeClient(NotificationClient *client)
+{
+ std::queue<Notification> newTodo;
+
+ while(!todo.empty())
+ {
+ const Notification& n = todo.front();
+ if(n.receiver != client)
+ newTodo.push(n);
+ else
+ {
+ arts_debug("NotificationManager: removing one notification");
+ NotificationDestroyFunction destroy =
+ (NotificationDestroyFunction)n.internal;
+ if(destroy) destroy(n);
+ }
+ todo.pop();
+ }
+ todo = newTodo;
+}
+
+void Notification::setDestroy(NotificationDestroyFunction destroy)
+{
+ internal = (void*)destroy;
+}
+
+NotificationManager *NotificationManager::instance = 0;