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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.util;
17  
18  public interface ResourceLeakTracker<T>  {
19  
20      /**
21       * Records the caller's current stack trace so that the {@link ResourceLeakDetector} can tell where the leaked
22       * resource was accessed lastly. This method is a shortcut to {@link #record(Object) record(null)}.
23       */
24      void record();
25  
26      /**
27       * Records the caller's current stack trace and the specified additional arbitrary information
28       * so that the {@link ResourceLeakDetector} can tell where the leaked resource was accessed lastly.
29       */
30      void record(Object hint);
31  
32      /**
33       * Close the leak so that {@link ResourceLeakTracker} does not warn about leaked resources.
34       * After this method is called a leak associated with this ResourceLeakTracker should not be reported.
35       *
36       * @return {@code true} if called first time, {@code false} if called already
37       */
38      boolean close(T trackedObject);
39  }