/**
* Remove an outstanding piece data request.
*
* @param piece_number
* @param piece_offset
* @param length
*/
public void removePieceRequest(int piece_number, int piece_offset, int length) {
if (destroyed) return;
DiskManagerReadRequest dmr =
peer.getManager().getDiskManager().createReadRequest(piece_number, piece_offset, length);
try {
lock_mon.enter();
if (requests.contains(dmr)) {
requests.remove(dmr);
return;
}
if (loading_messages.contains(dmr)) {
loading_messages.remove(dmr);
return;
}
for (Iterator i = queued_messages.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry) i.next();
if (entry.getValue().equals(dmr)) { // it's already been queued
BTPiece msg = (BTPiece) entry.getKey();
if (outgoing_message_queue.removeMessage(msg, true)) {
i.remove();
}
break; // do manual listener notify
}
}
} finally {
lock_mon.exit();
}
outgoing_message_queue.doListenerNotifications();
}
public void readFailed(DiskManagerReadRequest request, Throwable cause) {
try {
lock_mon.enter();
if (!loading_messages.contains(request) || destroyed) { // was canceled
return;
}
loading_messages.remove(request);
} finally {
lock_mon.exit();
}
}
void removeListener(Object o) {
boolean unregister_from_downloads = false;
try {
this_mon.enter();
ArrayList new_listeners = new ArrayList(listeners);
new_listeners.remove(o);
this.listeners = new_listeners;
unregister_from_downloads = this.listeners.isEmpty();
} finally {
this_mon.exit();
}
if (unregister_from_downloads) {
dm.removeListener(this, true);
}
}
public void readCompleted(DiskManagerReadRequest request, DirectByteBuffer data) {
try {
lock_mon.enter();
if (!loading_messages.contains(request) || destroyed) { // was canceled
data.returnToPool();
return;
}
loading_messages.remove(request);
BTPiece msg =
new BTPiece(request.getPieceNumber(), request.getOffset(), data, piece_version);
queued_messages.put(msg, request);
outgoing_message_queue.addMessage(msg, true);
} finally {
lock_mon.exit();
}
outgoing_message_queue.doListenerNotifications();
}
public static void removeListener(MetaDataUpdateListener l) {
metaDataListeners.remove(l);
}