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