src/Tizen.NUI/src/internal/DisposeQueue.cs

   1 // Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   2 // PROPRIETARY/CONFIDENTIAL
   3 // This software is the confidential and proprietary
   4 // information of SAMSUNG ELECTRONICS ("Confidential Information"). You shall
   5 // not disclose such Confidential Information and shall use it only in
   6 // accordance with the terms of the license agreement you entered into with
   7 // SAMSUNG ELECTRONICS.
   8 //
   9
  10 using System;
  11 using System.Collections.Generic;
  12
  13 namespace Tizen.NUI
  14 {
  15
  16     internal class DisposeQueue
  17     {
  18         private static readonly DisposeQueue _disposableQueue = new DisposeQueue();
  19         private List<IDisposable> _disposables = new List<IDisposable>();
  20         private System.Object _listLock = new object();
  21         private EventThreadCallback _eventThreadCallback;
  22         private EventThreadCallback.CallbackDelegate _disposeQueueProcessDisposablesDelegate;
  23
  24         private DisposeQueue()
  25         {
  26         }
  27
  28         ~DisposeQueue()
  29         {
  30         }
  31
  32         public static DisposeQueue Instance
  33         {
  34             get { return _disposableQueue; }
  35         }
  36
  37         private bool _isCalled = false;
  38         public void Initialize()
  39         {
  40             if(_isCalled == false)
  41             {
  42             _disposeQueueProcessDisposablesDelegate = new EventThreadCallback.CallbackDelegate(ProcessDisposables);
  43             _eventThreadCallback = new EventThreadCallback(_disposeQueueProcessDisposablesDelegate);
  44                 _isCalled = true;
  45             }
  46         }
  47
  48         public void Add(IDisposable disposable)
  49         {
  50             lock (_listLock)
  51             {
  52                 _disposables.Add(disposable);
  53             }
  54
  55             if (_eventThreadCallback != null)
  56             {
  57                 _eventThreadCallback.Trigger();
  58             }
  59         }
  60
  61         public void ProcessDisposables()
  62         {
  63             lock (_listLock)
  64             {
  65                 foreach (IDisposable disposable in _disposables)
  66                 {
  67                     disposable.Dispose();
  68                 }
  69                 _disposables.Clear();
  70             }
  71         }
  72     }
  73 }