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comparison Implab/AbstractTaskT.cs @ 192:f1da3afc3521 release v2.1

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Слияние с v2
author cin
date Fri, 22 Apr 2016 13:10:34 +0300
parents dd4a3590f9c6
children
comparison
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71:1714fd8678ef 192:f1da3afc3521
1 using System;
2 using System.Threading;
3
4 namespace Implab {
5 public abstract class AbstractTask<T> : AbstractPromise<T> {
6 int m_cancelationLock;
7
8 /// <summary>
9 /// Получает эксклюзивное право отмены задания, используется для отмены задания до начала его выполнения.
10 /// </summary>
11 /// <returns><c>true</c>, if cancelation was locked, <c>false</c> otherwise.</returns>
12 protected bool LockCancelation() {
13 return 0 == Interlocked.CompareExchange(ref m_cancelationLock, 1, 0);
14 }
15
16
17
18 protected void SetErrorInternal(Exception error) {
19 // unwrap
20 while (error is PromiseTransientException && error.InnerException != null)
21 error = error.InnerException;
22
23 if (error is OperationCanceledException)
24 SetCancelled(error);
25 else
26 SetError(error);
27 }
28
29 protected void SetCancelledInternal(Exception reason) {
30 SetCancelled(
31 reason == null ? new OperationCanceledException() : reason is OperationCanceledException ? reason : new OperationCanceledException(null, reason)
32 );
33 }
34 }
35 }
36