/*
* Copyright (C) 2007, 2008 Wayne Meissner
*
* This file is part of gstreamer-java.
*
* gstreamer-java is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gstreamer-java 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with gstreamer-java. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gstreamer;
import java.lang.ref.WeakReference;
import java.util.concurrent.atomic.AtomicBoolean;
import org.gstreamer.lowlevel.GObjectAPI;
import org.gstreamer.lowlevel.IntPtr;
import com.sun.jna.Pointer;
/**
* Keeps track of GObject derived objects.
*/
class Tracker {
public Tracker(GObject obj) {
super();
GObjectAPI.GOBJECT_API.g_object_weak_ref(obj, notify, new IntPtr(System.identityHashCode(this)));
ref = new WeakReference<GObject>(obj);
}
WeakReference<GObject> ref;
private final AtomicBoolean destroyed = new AtomicBoolean(false);
GObjectAPI.GWeakNotify notify = new GObjectAPI.GWeakNotify() {
public void callback(IntPtr id, Pointer obj) {
destroyed.set(true);
}
};
public boolean waitGC() {
return GarbageCollectionTest.waitGC(ref);
}
public boolean waitDestroyed() {
for (int i = 0; !destroyed.get() && i < 10; ++i) {
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
}
}
return destroyed.get();
}
}