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();
}
/**
* Get a list of piece numbers being requested
*
* @return list of Long values
*/
public int[] getRequestedPieceNumbers() {
if (destroyed) return new int[0];
/** Cheap hack to reduce (but not remove all) the # of duplicate entries */
int iLastNumber = -1;
int pos = 0;
int[] pieceNumbers;
try {
lock_mon.enter();
// allocate max size needed (we'll shrink it later)
pieceNumbers = new int[queued_messages.size() + loading_messages.size() + requests.size()];
for (Iterator iter = queued_messages.keySet().iterator(); iter.hasNext(); ) {
BTPiece msg = (BTPiece) iter.next();
if (iLastNumber != msg.getPieceNumber()) {
iLastNumber = msg.getPieceNumber();
pieceNumbers[pos++] = iLastNumber;
}
}
for (Iterator iter = loading_messages.iterator(); iter.hasNext(); ) {
DiskManagerReadRequest dmr = (DiskManagerReadRequest) iter.next();
if (iLastNumber != dmr.getPieceNumber()) {
iLastNumber = dmr.getPieceNumber();
pieceNumbers[pos++] = iLastNumber;
}
}
for (Iterator iter = requests.iterator(); iter.hasNext(); ) {
DiskManagerReadRequest dmr = (DiskManagerReadRequest) iter.next();
if (iLastNumber != dmr.getPieceNumber()) {
iLastNumber = dmr.getPieceNumber();
pieceNumbers[pos++] = iLastNumber;
}
}
} finally {
lock_mon.exit();
}
int[] trimmed = new int[pos];
System.arraycopy(pieceNumbers, 0, trimmed, 0, pos);
return trimmed;
}