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     internal class DisposeQueue
  16     {
  17         private static readonly DisposeQueue _disposableQueue = new DisposeQueue();
  18         private List<IDisposable> _disposables = new List<IDisposable>();
  19         private System.Object _listLock = new object();
  20         private EventThreadCallback _eventThreadCallback;
  21         private EventThreadCallback.CallbackDelegate _disposeQueueProcessDisposablesDelegate;
  22
  23         private DisposeQueue()
  24         {
  25         }
  26
  27         ~DisposeQueue()
  28         {
  29         }
  30
  31         public static DisposeQueue Instance
  32         {
  33             get { return _disposableQueue; }
  34         }
  35
  36         private bool _isCalled = false;
  37         public void Initialize()
  38         {
  39             if(_isCalled == false)
  40             {
  41             _disposeQueueProcessDisposablesDelegate = new EventThreadCallback.CallbackDelegate(ProcessDisposables);
  42             _eventThreadCallback = new EventThreadCallback(_disposeQueueProcessDisposablesDelegate);
  43                 _isCalled = true;
  44             }
  45         }
  46
  47         public void Add(IDisposable disposable)
  48         {
  49             lock (_listLock)
  50             {
  51                 _disposables.Add(disposable);
  52             }
  53
  54             if (_eventThreadCallback != null)
  55             {
  56                 _eventThreadCallback.Trigger();
  57             }
  58         }
  59
  60         public void ProcessDisposables()
  61         {
  62             lock (_listLock)
  63             {
  64                 foreach (IDisposable disposable in _disposables)
  65                 {
  66                     disposable.Dispose();
  67                 }
  68                 _disposables.Clear();
  69             }
  70         }
  71     }
  72 }