implab/ImplabNet Files · Implab/FuncChainTaskBase.cs

fixed regression: race condition in Promise...

fixed regression: race condition in Promise DFA refactoring

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             FuncChainTaskBase.cs
        
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        cin
    
RC: cancellation support for promises + tests

              r145
            
      using System;

      using System.Threading;

      namespace Implab {

          public class FuncChainTaskBase<TResult> : AbstractPromise<TResult> {

              readonly Func<Exception, IPromise<TResult>> m_error;

              readonly Func<Exception, IPromise<TResult>> m_cancel;

              int m_cancelationLock;

        cin
    
fixed promises cancellation

              r149
            
              protected FuncChainTaskBase( Func<Exception, IPromise<TResult>> error, Func<Exception, IPromise<TResult>> cancel, bool autoCancellable) {

        cin
    
RC: cancellation support for promises + tests

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                  m_error = error;

                  m_cancel = cancel;

        cin
    
fixed promises cancellation

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                  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
    
fixed promises cancellation

              r149
            
                  if (LockCancelation()) {

                      if (m_cancel != null) {

                          try {

                              m_cancel(reason).On(SetResult, HandleErrorInternal, SetCancelled);

                          } catch (Exception err) {

                              HandleErrorInternal(err);

                          }

                      } else {

                          SetCancelled(reason);

        cin
    
RC: cancellation support for promises + tests

              r145
            
                      }

                  }

              }

              protected void HandleErrorInternal(Exception error) {

                  if (m_error != null) {

                      try {

        cin
    
fixed promises cancellation

              r149
            
                          var operation = m_error(error);

                          operation.On(SetResult, SetError, SetCancelled);

                          CancellationRequested(operation.Cancel);

        cin
    
RC: cancellation support for promises + tests

              r145
            
                      } catch(Exception err) {

                          SetError(err);

                      }

                  } else {

                      SetError(error);

                  }

              }

              protected bool LockCancelation() {

                  return 0 == Interlocked.CompareExchange(ref m_cancelationLock, 1, 0);

              }

          }

      }

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cin RC: cancellation support for promises + tests	r145	using System;
		using System.Threading;

		namespace Implab {
		public class FuncChainTaskBase<TResult> : AbstractPromise<TResult> {
		readonly Func<Exception, IPromise<TResult>> m_error;
		readonly Func<Exception, IPromise<TResult>> m_cancel;

		int m_cancelationLock;

cin fixed promises cancellation	r149	protected FuncChainTaskBase( Func<Exception, IPromise<TResult>> error, Func<Exception, IPromise<TResult>> 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 fixed promises cancellation	r149	if (LockCancelation()) {
		if (m_cancel != null) {
		try {
		m_cancel(reason).On(SetResult, HandleErrorInternal, SetCancelled);
		} catch (Exception err) {
		HandleErrorInternal(err);
		}
		} else {
		SetCancelled(reason);
cin RC: cancellation support for promises + tests	r145	}
		}

		}

		protected void HandleErrorInternal(Exception error) {
		if (m_error != null) {
		try {
cin fixed promises cancellation	r149	var operation = m_error(error);

		operation.On(SetResult, SetError, SetCancelled);
		CancellationRequested(operation.Cancel);
cin RC: cancellation support for promises + tests	r145	} catch(Exception err) {
		SetError(err);
		}
		} else {
		SetError(error);
		}
		}

		protected bool LockCancelation() {
		return 0 == Interlocked.CompareExchange(ref m_cancelationLock, 1, 0);
		}
		}
		}