Android Open Source - azilink Tm Accept

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Back to project page azilink.

License

The source code is released under:

GNU General Public License

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Java Source Code

/* AziLink: USB tethering for Android
 * Copyright (C) 2009 by James Perry/*from w  ww .  j  a va  2s . c om*/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) version 3 of the License.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.lfx.azilink.net;

import java.net.InetSocketAddress;
import java.util.HashMap;

import android.util.Log;

/**
 * Holds IP addresses that had recent successful connection (for the T-Mobile workaround).
 * TODO: entries aren't always removed from the list, so it could eventually grow to be very big. 
 * 
 * @author Jim Perry
 *
 */
public class TmAccept {
  /** Map of all stored addresses */
  HashMap<InetSocketAddress, Long> mTable = new HashMap<InetSocketAddress, Long>();
  
  /**
   * Check whether a connection should bypass the TMobile workaround.
   * 
   * @param key address for this link
   * @return whether we should bypass the TMobile workaround
   */
  boolean check(InetSocketAddress key) {
    Long when = mTable.get(key);    
    
    if( when == null ) {
      Log.v("AziLink", key.toString() + " is not in the tm table");
      return false;
    }
    
    long now = System.currentTimeMillis();
    
    if( when < now ) {
      Log.v("AziLink", key.toString() + " is EXPIRE");
      mTable.remove(key);
      return false;
    }
    Log.v("AziLink", key.toString() + " is in table");
    mTable.put(key,now + 30000);
    return true;
  };
  
  /**
   * Add a key to the timer table.
   * @param key ip addresses
   */
  void mark(InetSocketAddress key) {
    Log.v("AziLink", key.toString() + " add to table");
    long now = System.currentTimeMillis() + 30000;    // key lives for 30 seconds
    mTable.put(key,now);
  }
}

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