Пример #1
0
    /**
     * Here we manage the registered peers: - set crt as first in loaded_peers it may have been part
     * of the list before but we assume that its message was accounted in current_space
     *
     * @param crt
     */
    private static void register_loaded(D_DirectoryEntry crt) {
      ArrayList<D_DirectoryEntry> rem = new ArrayList<D_DirectoryEntry>();
      // crt.encoder = crt.getEncoder();
      // if(crt.loaded_globals) crt.component_node.message = crt.encode(); //crt.encoder.getBytes();
      synchronized (loaded_peers) {
        if (DEBUG) System.out.println("DSCache:register_loaded registering " + crt);
        if (crt.get_DDP2P_DoubleLinkedList_Node() == null) {
          boolean result = loaded_peers.offerFirst(crt);
          if (DEBUG) System.out.println("DSCache:register_loaded registered " + result);
          if (DEBUG) System.out.println("DSCache:register_loaded " + loaded_peers);
          // loaded_peer_By_LocalID.put(new Long(crt._peer_ID), crt);
          loaded_peer_By_GID.put(crt.globalID, crt);
          loaded_peer_By_GIDhash.put(crt.globalIDhash, crt);
          if (crt.component_node.message != null) {
            current_space += crt.component_node.message.length;
          }
        } else {
          loaded_peers.moveToFront(crt);
        }

        while ((loaded_peers.size() > MAX_LOADED_PEERS) || (current_space > MAX_PEERS_RAM)) {
          if (loaded_peers.size() <= MIN_PEERS_RAM) break; // at least _crt_peer and _myself
          //					D_DirectoryEntry candidate = loaded_peers.getTail();
          //					if((candidate == D_DirectoryEntry._crt_peer)||(candidate ==
          // D_DirectoryEntry._myself)){
          //						setRecent(candidate);
          //						continue;
          //					}

          D_DirectoryEntry removed = loaded_peers.removeTail(); // remove(loaded_peers.size()-1);
          // loaded_peer_By_LocalID.remove(new Long(removed._peer_ID));
          loaded_peer_By_GID.remove(removed.globalID);
          loaded_peer_By_GIDhash.remove(removed.globalIDhash);
          if (removed.component_node.message != null)
            current_space -= removed.component_node.message.length;
          if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
            rem.add(removed);
        }
      }
      if (DEBUG) System.out.println("DSCache:register_loaded cleaned " + loaded_peers);
      for (D_DirectoryEntry removed : rem) {
        try {
          synchronized (D_Directory_Storage.saver_thread_monitor) {
            if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
              removed.update();
          }
        } catch (P2PDDSQLException e) {
          e.printStackTrace();
        }
      }
      if (DEBUG) System.out.println("DSCache:register_loaded exit " + loaded_peers);
    }
Пример #2
0
    /**
     * Add a new instance to an existing peer cache.
     *
     * <p>Since the peer is assumed preloaded in the cache, instance not needed in global
     * hashtables.
     *
     * @param crt
     */
    public static void register_loaded_instance(D_DirectoryEntry crt) {
      ArrayList<D_DirectoryEntry> rem = new ArrayList<D_DirectoryEntry>();
      synchronized (loaded_peers) {
        loaded_peers.offerFirst(crt);
        if (crt.component_node.message != null) current_space += crt.component_node.message.length;

        /** Disconnect overflowing instances from list, set them in "removed" */
        while ((loaded_peers.size() > MAX_LOADED_PEERS) || (current_space > MAX_PEERS_RAM)) {
          if (loaded_peers.size() <= MIN_PEERS_RAM) break; // at least _crt_peer and _myself
          D_DirectoryEntry removed = loaded_peers.removeTail(); // remove(loaded_peers.size()-1);
          if (removed.component_node.message != null)
            current_space -= removed.component_node.message.length;
          if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
            rem.add(removed);
          else {
            for (D_DirectoryEntry a : removed.instances.values()) {
              if (D_Directory_Storage.need_saving_contains(a.globalIDhash, a.instance)) rem.add(a);
            }
          }
        }
      }
      /** Do the saving */
      for (D_DirectoryEntry removed : rem) {
        try {
          synchronized (D_Directory_Storage.saver_thread_monitor) {
            if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
              removed.update();
            for (D_DirectoryEntry a : removed.instances.values()) {
              if (D_Directory_Storage.need_saving_contains(a.globalIDhash, a.instance)) a.update();
            }
          }
        } catch (P2PDDSQLException e) {
          e.printStackTrace();
        }
      }
    }
Пример #3
0
 /**
  * Move this to the front of the list of items (tail being trimmed)
  *
  * @param crt
  */
 private static void setRecent(D_DirectoryEntry crt) {
   loaded_peers.moveToFront(crt);
 }
Пример #4
0
 /** @return */
 private static String dumpDirCache() {
   String s = "[";
   s += loaded_peers.toString();
   s += "]";
   return s;
 }