public override IAsyncResult BeginExecute(ControllerContext controllerContext, IDictionary<string, object> parameters, AsyncCallback callback, object state) {
if (controllerContext == null) {
throw new ArgumentNullException("controllerContext");
}
if (parameters == null) {
throw new ArgumentNullException("parameters");
}
AsyncManager asyncHelper = GetAsyncManager(controllerContext.Controller);
SingleEntryGate setupCompletedGate = new SingleEntryGate();
BeginInvokeCallback beginCallback = (innerCallback, innerState) => {
ManualAsyncResult asyncResult = new ManualAsyncResult() {
AsyncState = innerState
};
// Get parameters for async setup method, then execute
ParameterInfo[] setupParametersInfos = SetupMethod.GetParameters();
var rawSetupParameterValues = from parameterInfo in setupParametersInfos
select ExtractParameterFromDictionary(parameterInfo, parameters, SetupMethod);
object[] setupParametersArray = rawSetupParameterValues.ToArray();
// to simplify the logic, force an asynchronous callback
asyncHelper.OutstandingOperations.Completed += delegate {
if (setupCompletedGate.TryEnter()) {
ThreadPool.QueueUserWorkItem(o => {
asyncResult.MarkCompleted(false /* completedSynchronously */, innerCallback);
});
}
};
MethodDispatcher setupDispatcher = DispatcherCache.GetDispatcher(SetupMethod);
asyncHelper.OutstandingOperations.Increment();
setupDispatcher.Execute(controllerContext.Controller, setupParametersArray);
asyncHelper.OutstandingOperations.Decrement();
return asyncResult;
};
AsyncCallback<object> endCallback = ar => {
if (setupCompletedGate.TryEnter()) {
// the setup method did not complete before this callback executed
throw new InvalidOperationException(MvcResources.AsyncActionDescriptor_EndExecuteCalledPrematurely);
}
// Get parameters for action method, then execute
ParameterInfo[] completionParametersInfos = CompletionMethod.GetParameters();
var rawCompletionParameterValues = from parameterInfo in completionParametersInfos
select ExtractParameterOrDefaultFromDictionary(parameterInfo, asyncHelper.Parameters);
object[] completionParametersArray = rawCompletionParameterValues.ToArray();
MethodDispatcher completionDispatcher = DispatcherCache.GetDispatcher(CompletionMethod);
object actionReturnValue = completionDispatcher.Execute(controllerContext.Controller, completionParametersArray);
return actionReturnValue;
};
// Set the timeout and go
int timeout = asyncHelper.Timeout;
return AsyncResultWrapper.WrapWithTimeout(callback, state, beginCallback, endCallback, timeout, _executeTag);
}
public void CompletedSynchronouslyPropertySetToFalse() {
// Arrange
ManualAsyncResult asyncResult = new ManualAsyncResult();
// Act
asyncResult.MarkCompleted(false /* completedSynchronously */, null);
// Assert
Assert.IsFalse(asyncResult.CompletedSynchronously);
}
public void WaitHandlePropertyIsNotSetByDefault() {
// Arrange
ManualAsyncResult asyncResult = new ManualAsyncResult();
// Act
bool wasSet = asyncResult.AsyncWaitHandle.WaitOne(0, false /* exitContext */);
// Assert
Assert.IsFalse(wasSet);
}
public void IsCompletedProperty() {
// Arrange
ManualAsyncResult asyncResult = new ManualAsyncResult();
// Act
bool isCompletedBefore = asyncResult.IsCompleted;
asyncResult.MarkCompleted(false, null);
bool isCompletedAfter = asyncResult.IsCompleted;
// Assert
Assert.IsFalse(isCompletedBefore);
Assert.IsTrue(isCompletedAfter);
}
private static IAsyncResult CreateInvokeActionNotFoundAsyncResult(AsyncCallback callback, object state)
{
BeginInvokeCallback beginCallback = (innerCallback, innerState) => {
ManualAsyncResult asyncResult = new ManualAsyncResult()
{
AsyncState = innerState
};
asyncResult.MarkCompleted(true /* completedSynchronously */, innerCallback);
return(asyncResult);
};
AsyncCallback <bool> endCallback = ar => {
return(false);
};
return(AsyncResultWrapper.Wrap(callback, state, beginCallback, endCallback, _invokeActionTag));
}
public void MarkCompleted() {
// Arrange
ManualAsyncResult asyncResult = new ManualAsyncResult();
bool callbackWasCalled = false;
AsyncCallback callback = ar => {
callbackWasCalled = true;
Assert.AreEqual(asyncResult, ar);
Assert.IsTrue(ar.CompletedSynchronously);
Assert.IsTrue(ar.IsCompleted);
bool wasSignaledBefore = ar.AsyncWaitHandle.WaitOne(0, false /* exitContext */);
Assert.IsFalse(wasSignaledBefore, "The WaitHandle should not yet have been signaled.");
};
// Act
asyncResult.MarkCompleted(true, callback);
bool wasSignaledAfter = asyncResult.AsyncWaitHandle.WaitOne(0, false /* exitContext */);
// Assert
Assert.IsTrue(callbackWasCalled);
Assert.IsTrue(wasSignaledAfter);
}
private static IAsyncResult CreateInvokeActionNotFoundAsyncResult(AsyncCallback callback, object state) {
BeginInvokeCallback beginCallback = (innerCallback, innerState) => {
ManualAsyncResult asyncResult = new ManualAsyncResult() { AsyncState = innerState };
asyncResult.MarkCompleted(true /* completedSynchronously */, innerCallback);
return asyncResult;
};
AsyncCallback<bool> endCallback = ar => {
return false;
};
return AsyncResultWrapper.Wrap(callback, state, beginCallback, endCallback, _invokeActionTag);
}
public override IAsyncResult BeginExecute(ControllerContext controllerContext, IDictionary<string, object> parameters, AsyncCallback callback, object state) {
if (controllerContext == null) {
throw new ArgumentNullException("controllerContext");
}
if (parameters == null) {
throw new ArgumentNullException("parameters");
}
AsyncManager asyncHelper = GetAsyncManager(controllerContext.Controller);
SingleFireEvent setupCompletedEvent = new SingleFireEvent();
ContinuationListener listener = new ContinuationListener();
object theDelegate = null;
BeginInvokeCallback beginCallback = (innerCallback, innerState) => {
ManualAsyncResult asyncResult = new ManualAsyncResult() {
AsyncState = innerState
};
// Get parameters for async setup method, then execute
ParameterInfo[] setupParametersInfos = ActionMethod.GetParameters();
var rawSetupParameterValues = from parameterInfo in setupParametersInfos
select ExtractParameterFromDictionary(parameterInfo, parameters, ActionMethod);
object[] setupParametersArray = rawSetupParameterValues.ToArray();
// to simplify the logic, force an asynchronous callback
asyncHelper.OutstandingOperations.Completed += delegate {
if (setupCompletedEvent.Signal()) {
listener.SetContinuation(() => {
ThreadPool.QueueUserWorkItem(o => {
asyncResult.MarkCompleted(false /* completedSynchronously */, innerCallback);
});
});
}
};
MethodDispatcher setupDispatcher = DispatcherCache.GetDispatcher(ActionMethod);
asyncHelper.OutstandingOperations.Increment();
object returnedDelegate = setupDispatcher.Execute(controllerContext.Controller, setupParametersArray);
ValidateDelegateNotNull(returnedDelegate, ActionMethod);
asyncHelper.OutstandingOperations.Decrement();
Thread.VolatileWrite(ref theDelegate, returnedDelegate);
listener.Signal();
return asyncResult;
};
AsyncCallback<object> endCallback = ar => {
if (setupCompletedEvent.Signal()) {
// the setup method did not complete before this callback executed
throw new InvalidOperationException(MvcResources.AsyncActionDescriptor_EndExecuteCalledPrematurely);
}
object returnedDelegate = Thread.VolatileRead(ref theDelegate);
MethodInfo invokeMethod = returnedDelegate.GetType().GetMethod("Invoke", Type.EmptyTypes);
MethodDispatcher invokeDispatcher = DispatcherCache.GetDispatcher(invokeMethod);
object actionReturnValue = invokeDispatcher.Execute(returnedDelegate, _emptyParameters);
return actionReturnValue;
};
// Set the timeout and go
int timeout = asyncHelper.Timeout;
return AsyncResultWrapper.WrapWithTimeout(callback, state, beginCallback, endCallback, timeout, _executeTag);
}
public void WaitHandlePropertyIsActivelySetOnCompletion() {
// Arrange
ManualAsyncResult asyncResult = new ManualAsyncResult();
// Act
bool wasSet1 = asyncResult.AsyncWaitHandle.WaitOne(0, false /* exitContext */);
asyncResult.MarkCompleted(false, null);
bool wasSet2 = asyncResult.AsyncWaitHandle.WaitOne(0, false /* exitContext */);
// Assert
Assert.IsFalse(wasSet1);
Assert.IsTrue(wasSet2);
}
public override IAsyncResult BeginExecute(ControllerContext controllerContext, IDictionary <string, object> parameters, AsyncCallback callback, object state)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
AsyncManager asyncHelper = GetAsyncManager(controllerContext.Controller);
SingleFireEvent setupCompletedEvent = new SingleFireEvent();
BeginInvokeCallback beginCallback = (innerCallback, innerState) => {
ManualAsyncResult asyncResult = new ManualAsyncResult()
{
AsyncState = innerState
};
// Get parameters for async setup method, then execute
ParameterInfo[] setupParametersInfos = SetupMethod.GetParameters();
var rawSetupParameterValues = from parameterInfo in setupParametersInfos
select ExtractParameterFromDictionary(parameterInfo, parameters, SetupMethod);
object[] setupParametersArray = rawSetupParameterValues.ToArray();
// to simplify the logic, force an asynchronous callback
asyncHelper.OutstandingOperations.Completed += delegate {
if (setupCompletedEvent.Signal())
{
ThreadPool.QueueUserWorkItem(o => {
asyncResult.MarkCompleted(false /* completedSynchronously */, innerCallback);
});
}
};
MethodDispatcher setupDispatcher = DispatcherCache.GetDispatcher(SetupMethod);
asyncHelper.OutstandingOperations.Increment();
setupDispatcher.Execute(controllerContext.Controller, setupParametersArray);
asyncHelper.OutstandingOperations.Decrement();
return(asyncResult);
};
AsyncCallback <object> endCallback = ar => {
if (setupCompletedEvent.Signal())
{
// the setup method did not complete before this callback executed
throw new InvalidOperationException(MvcResources.AsyncActionDescriptor_EndExecuteCalledPrematurely);
}
// Get parameters for action method, then execute
ParameterInfo[] completionParametersInfos = CompletionMethod.GetParameters();
var rawCompletionParameterValues = from parameterInfo in completionParametersInfos
select ExtractParameterOrDefaultFromDictionary(parameterInfo, asyncHelper.Parameters);
object[] completionParametersArray = rawCompletionParameterValues.ToArray();
MethodDispatcher completionDispatcher = DispatcherCache.GetDispatcher(CompletionMethod);
object actionReturnValue = completionDispatcher.Execute(controllerContext.Controller, completionParametersArray);
return(actionReturnValue);
};
// Set the timeout and go
int timeout = asyncHelper.Timeout;
return(AsyncResultWrapper.WrapWithTimeout(callback, state, beginCallback, endCallback, timeout, _executeTag));
}
