Winify – Blame information for rev 30
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Rev | Author | Line No. | Line |
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30 | office | 1 | using System; |
2 | using System.Threading; |
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3 | using System.Threading.Tasks; |
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4 | |||
5 | namespace Winify.Utilities |
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6 | { |
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7 | public class ScheduledContinuation : IDisposable |
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8 | { |
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9 | #region Constructors, Destructors and Finalizers |
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10 | |||
11 | public void Dispose() |
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12 | { |
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13 | if (_cancellationTokenSource != null) |
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14 | { |
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15 | _cancellationTokenSource?.Cancel(); |
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16 | _cancellationTokenSource?.Dispose(); |
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17 | _cancellationTokenSource = null; |
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18 | } |
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19 | } |
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20 | |||
21 | #endregion |
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22 | |||
23 | #region Private Delegates, Events, Enums, Properties, Indexers and Fields |
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24 | |||
25 | private CancellationTokenSource _cancellationTokenSource; |
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26 | |||
27 | private Task _task; |
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28 | |||
29 | #endregion |
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30 | |||
31 | #region Public Methods |
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32 | |||
33 | public void Schedule(TimeSpan delay, Action execute, CancellationToken cancellationToken) |
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34 | { |
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35 | try |
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36 | { |
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37 | if (_task != null) |
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38 | { |
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39 | _cancellationTokenSource?.Cancel(); |
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40 | _cancellationTokenSource?.Dispose(); |
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41 | _cancellationTokenSource = null; |
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42 | _task = null; |
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43 | } |
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44 | } |
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45 | catch |
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46 | { |
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47 | // Ignore errors. |
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48 | } |
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49 | finally |
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50 | { |
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51 | _cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); |
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52 | } |
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53 | |||
54 | _task = Task.Delay(delay, _cancellationTokenSource.Token) |
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55 | .ContinueWith(task => |
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56 | { |
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57 | try |
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58 | { |
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59 | execute.Invoke(); |
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60 | } |
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61 | catch (Exception exception) when (exception is ObjectDisposedException || |
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62 | exception is OperationCanceledException) |
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63 | { |
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64 | } |
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65 | }, _cancellationTokenSource.Token); |
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66 | } |
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67 | |||
68 | public void Schedule(int delay, Action execute, CancellationToken cancellationToken) |
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69 | { |
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70 | try |
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71 | { |
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72 | if (_task != null) |
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73 | { |
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74 | _cancellationTokenSource?.Cancel(); |
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75 | _cancellationTokenSource?.Dispose(); |
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76 | _cancellationTokenSource = null; |
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77 | _task = null; |
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78 | } |
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79 | } |
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80 | catch |
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81 | { |
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82 | // Ignore errors. |
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83 | } |
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84 | finally |
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85 | { |
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86 | _cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); |
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87 | } |
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88 | |||
89 | _task = Task.Delay(delay, _cancellationTokenSource.Token) |
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90 | .ContinueWith(task => |
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91 | { |
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92 | try |
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93 | { |
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94 | execute.Invoke(); |
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95 | } |
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96 | catch (Exception exception) when (exception is ObjectDisposedException || |
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97 | exception is OperationCanceledException) |
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98 | { |
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99 | } |
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100 | }, _cancellationTokenSource.Token); |
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101 | } |
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102 | |||
103 | #endregion |
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104 | } |
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105 | } |