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 : IDisposable
  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         public static DisposeQueue Instance
  28         {
  29             get { return _disposableQueue; }
  30         }
  31
  32         private bool _isCalled = false;
  33         public void Initialize()
  34         {
  35             if(_isCalled == false)
  36             {
  37             _disposeQueueProcessDisposablesDelegate = new EventThreadCallback.CallbackDelegate(ProcessDisposables);
  38             _eventThreadCallback = new EventThreadCallback(_disposeQueueProcessDisposablesDelegate);
  39                 _isCalled = true;
  40             }
  41         }
  42
  43         public void Add(IDisposable disposable)
  44         {
  45             lock (_listLock)
  46             {
  47                 _disposables.Add(disposable);
  48             }
  49
  50             if (_eventThreadCallback != null)
  51             {
  52                 _eventThreadCallback.Trigger();
  53             }
  54         }
  55
  56         public void ProcessDisposables()
  57         {
  58             lock (_listLock)
  59             {
  60                 foreach (IDisposable disposable in _disposables)
  61                 {
  62                     disposable.Dispose();
  63                 }
  64                 _disposables.Clear();
  65             }
  66         }
  67
  68         public void Dispose()
  69         {
  70             ProcessDisposables();
  71         }
  72     }
  73 }