##// END OF EJS Templates
implab » ImplabNet
RSS
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
cin - - Load All Authors

File last commit:

r196:40d7fed4a09e default
r196:40d7fed4a09e default
Show More
ActionChainTaskBase.cs
62 lines | 2.5 KiB | text/x-csharp | CSharpLexer
/ Implab / ActionChainTaskBase.cs
History | Source | Raw |Copy content |Copy permalink
cin
RC: cancellation support for promises + tests
 r145 using System;
using System.Threading;
namespace Implab {
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 public class ActionChainTaskBase : AbstractTask {
cin
RC: cancellation support for promises + tests
 r145 readonly Func<Exception, IPromise> m_error;
readonly Func<Exception, IPromise> m_cancel;
cin
fixed promises cancellation
 r149 protected ActionChainTaskBase(Func<Exception, IPromise> error, Func<Exception, IPromise> cancel, bool autoCancellable) {
cin
RC: cancellation support for promises + tests
 r145 m_error = error;
m_cancel = cancel;
cin
fixed promises cancellation
 r149 if (autoCancellable)
CancellationRequested(CancelOperation);
cin
RC: cancellation support for promises + tests
 r145 }
public void Reject(Exception error) {
if (LockCancelation())
HandleErrorInternal(error);
}
public override void CancelOperation(Exception reason) {
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 if (LockCancelation())
// отмена вызвана до начала выполнения задачи
HandleCancelInternal(reason);
}
protected void HandleCancelInternal(Exception reason) {
if (m_cancel != null) {
try {
// вызываем обработчик отмены
var p = m_cancel(reason);
p.On(SetResult, HandleErrorInternal, SetCancelledInternal);
// сообщаем асинхронной операции, что клиент уже не хочет получать результат
// т.е. если он инициировал отмену, задача отменилась, вызвался обрабочик отмены
// отбработчику сообщили, что результат уже не нужен и уже сам обработчик решает
// отдавать ли результат или подтвердить отмену (или вернуть ошибку).
CancellationRequested(p.Cancel);
} catch (Exception err) {
cin
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
 r196 SetErrorInternal(err);
cin
RC: cancellation support for promises + tests
 r145 }
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 } else {
cin
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
 r196 SetCancelledInternal(reason);
cin
RC: cancellation support for promises + tests
 r145 }
}
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 protected void HandleErrorInternal(Exception error) {
cin
RC: cancellation support for promises + tests
 r145 if (m_error != null) {
try {
cin
fixed promises cancellation
 r149 var p = m_error(error);
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 p.On(SetResult, SetErrorInternal, SetCancelledInternal);
cin
fixed promises cancellation
 r149 CancellationRequested(p.Cancel);
} catch (Exception err) {
cin
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
 r187 SetErrorInternal(error);
cin
RC: cancellation support for promises + tests
 r145 }
} else {
cin
working on cancelation and error handling
 r186 SetErrorInternal(error);
}
}
cin
RC: cancellation support for promises + tests
 r145 }
}