/**
* Cleans up a single reference. Catches and logs all throwables.
*
* @return true if the caller should continue, false if the associated FinalizableReferenceQueue
* is no longer referenced.
*/
private boolean cleanUp(Reference<?> reference) {
Method finalizeReferentMethod = getFinalizeReferentMethod();
if (finalizeReferentMethod == null) {
return false;
}
do {
/*
* This is for the benefit of phantom references. Weak and soft references will have already
* been cleared by this point.
*/
reference.clear();
if (reference == frqReference) {
/*
* The client no longer has a reference to the FinalizableReferenceQueue. We can stop.
*/
return false;
}
try {
finalizeReferentMethod.invoke(reference);
} catch (Throwable t) {
logger.log(Level.SEVERE, "Error cleaning up after reference.", t);
}
/*
* Loop as long as we have references available so as not to waste CPU looking up the Method
* over and over again.
*/
} while ((reference = queue.poll()) != null);
return true;
}
public void run() {
while (true) {
try {
Reference<?> ref = queue.remove();
Resource res = null;
synchronized (ResourceManager.this) {
res = refs.get(ref);
refs.remove(ref);
}
res.release();
ref.clear();
} catch (InterruptedException ex) {
break;
}
}
}
protected void orphanedMemory(Reference ref) {
AddressWrapper wrapper;
// BEGIN android-changed
// copied from newer version of harmony
synchronized (this) {
PlatformAddress shadow = refToShadow.remove(ref);
wrapper = memoryInUse.get(shadow);
if (wrapper != null) {
// There is a leak if we were not auto-freeing this memory.
if (!wrapper.autoFree) {
System.err.println(
"Memory Spy! Fixed memory leak by freeing " + wrapper.shadow); // $NON-NLS-1$
}
wrapper.shadow.free();
}
}
ref.clear();
// END android-changed
}
@Override
public void close() {
closed = true;
old.clear();
ref.clear();
}