private void AttachHandlers()
{
BeginEventHandler bh = new BeginEventHandler( this.BeginLoad );
EndEventHandler eh = new EndEventHandler( this.EndLoad );
AddOnPreRenderCompleteAsync( bh, eh );
}
public EventHandlerTaskAsyncHelper (TaskEventHandler handler)
{
if (handler == null)
throw new ArgumentNullException ("handler");
taskEventHandler = handler;
beginEventHandler = GetAsyncResult;
}
public PageAsyncTask (BeginEventHandler beginHandler, EndEventHandler endHandler,
EndEventHandler timeoutHandler, Object state, bool executeInParallel)
{
this.beginHandler = beginHandler;
this.endHandler = endHandler;
this.timeoutHandler = timeoutHandler;
this.state = state;
this.executeInParallel = executeInParallel;
}
internal LegacyPageAsyncTask(BeginEventHandler beginHandler, EndEventHandler endHandler, EndEventHandler timeoutHandler, Object state, bool executeInParallel) {
// Parameter checking is done by the public PageAsyncTask constructor
_beginHandler = beginHandler;
_endHandler = endHandler;
_timeoutHandler = timeoutHandler;
_state = state;
_executeInParallel = executeInParallel;
}
public void Init(HttpApplication context)
{
if (beginEventHandler == null)
{
beginEventHandler = new BeginEventHandler(ServiceHttpModule.BeginProcessRequest);
}
if (endEventHandler == null)
{
endEventHandler = new EndEventHandler(ServiceHttpModule.EndProcessRequest);
}
context.AddOnPostAuthenticateRequestAsync(beginEventHandler, endEventHandler);
}
protected void Start_Clicked(object sender, EventArgs e)
{
ProgressLabel.Text = "Page_Load: thread #" + System.Threading.Thread.CurrentThread.GetHashCode();
BeginEventHandler bh = new BeginEventHandler(this.BeginGetAsyncData);
EndEventHandler eh = new EndEventHandler(this.EndGetAsyncData);
AddOnPreRenderCompleteAsync(bh, eh);
// Initialize the WebRequest.
string address = "http://localhost/";
myRequest = System.Net.WebRequest.Create(address);
}
public PageAsyncTask(BeginEventHandler beginHandler, EndEventHandler endHandler, EndEventHandler timeoutHandler, object state, bool executeInParallel)
{
if (beginHandler == null)
{
throw new ArgumentNullException("beginHandler");
}
if (endHandler == null)
{
throw new ArgumentNullException("endHandler");
}
this._beginHandler = beginHandler;
this._endHandler = endHandler;
this._timeoutHandler = timeoutHandler;
this._state = state;
this._executeInParallel = executeInParallel;
}
// APM
internal PageAsyncTask(BeginEventHandler beginHandler, EndEventHandler endHandler, EndEventHandler timeoutHandler, Object state, bool executeInParallel, SynchronizationContextMode currentMode) {
if (beginHandler == null) {
throw new ArgumentNullException("beginHandler");
}
if (endHandler == null) {
throw new ArgumentNullException("endHandler");
}
// Only the legacy PageAsyncTaskManager supports timing out APM methods or executing them in parallel
if (timeoutHandler != null || executeInParallel) {
SynchronizationContextUtil.ValidateMode(currentMode, requiredMode: SynchronizationContextMode.Legacy, specificErrorMessage: SR.SynchronizationContextUtil_PageAsyncTaskTimeoutHandlerParallelNotCompatible);
}
BeginHandler = beginHandler;
EndHandler = endHandler;
TimeoutHandler = timeoutHandler;
State = state;
ExecuteInParallel = executeInParallel;
}
private void DoAsync()
{
if (IsAsync)
{
Session["Halted"] = false;
Timer1.Enabled = true;
var asyncHandler = new AsyncHandler(Context);
asyncHandler.NotifyHaltHandler += Halted;
asyncHandler.NotifyLogger += Logger;
BeginEventHandler bh = new BeginEventHandler(asyncHandler.BeginProcessRequest);
EndEventHandler eh = new EndEventHandler(asyncHandler.EndProcessRequest);
AddOnPreRenderCompleteAsync(bh, eh);
// Initialize the WebRequest.
string address = "http://localhost/";
asyncHandler.WebRequest = System.Net.WebRequest.Create(address);
}
GC.Collect();
GC.WaitForPendingFinalizers();
}
public void AddOnAuthenticateRequestAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPostAuthorizeRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnAuthenticateRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnPreRenderCompleteAsync (BeginEventHandler beginHandler, EndEventHandler endHandler)
{
AddOnPreRenderCompleteAsync (beginHandler, endHandler, null);
}
/// <summary>
/// Registers a new asynchronous task with the page.
/// </summary>
/// <param name="beginHandler">The handler to call when beginning an asynchronous task.</param>
/// <param name="endHandler">The handler to call when the task is completed successfully within the time-out period.</param>
/// <param name="timeout">The handler to call when the task is not completed successfully within the time-out period.</param>
/// <param name="state">The object that represents the state of the task.</param>
/// <param name="executeInParallel">The vlaue that indicates whether the task can be executed in parallel with other tasks.</param>
public void RegisterAsyncTask(BeginEventHandler beginHandler, EndEventHandler endHandler, EndEventHandler timeout, object state, bool executeInParallel)
{
page.RegisterAsyncTask(new PageAsyncTask(beginHandler, endHandler, timeout, state, executeInParallel));
}
public void AddOnLogRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, Object state)
{
}
public void AddOnPostMapRequestHandlerAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnReleaseRequestStateAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnPostResolveRequestCacheAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnPostMapRequestHandlerAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnPostResolveRequestCacheAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnPostAuthorizeRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnPostAuthorizeRequestAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnPostMapRequestHandlerAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPostAcquireRequestStateAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnAcquireRequestStateAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPostAcquireRequestStateAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnBeginRequestAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnUpdateRequestCacheAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, Object state)
{
}
public void AddOnEndRequestAsync(BeginEventHandler bh, EndEventHandler eh)
{
AddOnEndRequestAsync(bh, eh, null);
}
public void AddOnUpdateRequestCacheAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnMapRequestHandlerAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, Object state) {
if (!HttpRuntime.UseIntegratedPipeline) {
throw new PlatformNotSupportedException(SR.GetString(SR.Requires_Iis_Integrated_Mode));
}
AsyncEvents.AddHandler(EventMapRequestHandler, beginHandler, endHandler, state,
RequestNotification.MapRequestHandler, false, this);
}
public void AddOnEndRequestAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnWork(BeginEventHandler beginHandler, EndEventHandler endHandler)
{
this._beginHandler = beginHandler;
this._endHandler = endHandler;
}
public void AddOnReleaseRequestStateAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnMapRequestHandlerAsync(BeginEventHandler bh, EndEventHandler eh) {
if (!HttpRuntime.UseIntegratedPipeline) {
throw new PlatformNotSupportedException(SR.GetString(SR.Requires_Iis_Integrated_Mode));
}
AddOnMapRequestHandlerAsync(bh, eh, null);
}
internal void GetEventHandlers(out BeginEventHandler beginHandler, out EndEventHandler endHandler)
{
beginHandler = new BeginEventHandler(OnEnter);
endHandler = new EndEventHandler(OnLeave);
}
public void AddOnPostMapRequestHandlerAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, Object state) {
AsyncEvents.AddHandler(EventPostMapRequestHandler, beginHandler, endHandler, state,
RequestNotification.MapRequestHandler, true, this);
}
public void AddOnPreRequestHandlerExecuteAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
}
public void AddOnPreRenderCompleteAsync (BeginEventHandler beginHandler, EndEventHandler endHandler, Object state)
{
if (!IsAsync) {
throw new InvalidOperationException ("AddOnPreRenderCompleteAsync called and Page.IsAsync == false");
}
if (IsPrerendered) {
throw new InvalidOperationException ("AddOnPreRenderCompleteAsync can only be called before and during PreRender.");
}
if (beginHandler == null) {
throw new ArgumentNullException ("beginHandler");
}
if (endHandler == null) {
throw new ArgumentNullException ("endHandler");
}
RegisterAsyncTask (new PageAsyncTask (beginHandler, endHandler, null, state, false));
}
public PageAsyncTask(BeginEventHandler beginHandler, EndEventHandler endHandler, EndEventHandler timeoutHandler, object state) : this(beginHandler, endHandler, timeoutHandler, state, false)
{
}
public void AddOnPostAuthorizeRequestAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPreRequestHandlerExecuteAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnResolveRequestCacheAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPostReleaseRequestStateAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnPostMapRequestHandlerAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnPostUpdateRequestCacheAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnAcquireRequestStateAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnPostRequestHandlerExecuteAsync(BeginEventHandler bh, EndEventHandler eh)
{
}
public void AddOnPostRequestHandlerExecuteAsync(BeginEventHandler bh, EndEventHandler eh) {}
public void AddOnAcquireRequestStateAsync(BeginEventHandler bh, EndEventHandler eh)
{
AddOnAcquireRequestStateAsync(bh, eh, null);
}
public void AddOnPostReleaseRequestStateAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnAcquireRequestStateAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
AsyncEvents.AddHandler(EventAcquireRequestState, beginHandler, endHandler, state, RequestNotification.AcquireRequestState, false, this);
}
public void AddOnPostUpdateRequestCacheAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnAuthenticateRequestAsync(BeginEventHandler bh, EndEventHandler eh)
{
AddOnAuthenticateRequestAsync(bh, eh, null);
}
public void AddOnBeginRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state) {}
public void AddOnBeginRequestAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
{
AsyncEvents.AddHandler(EventBeginRequest, beginHandler, endHandler, state, RequestNotification.BeginRequest, false, this);
}
