private HttpApplication GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
{
HttpApplication app = null;
lock (_specialFreeList) {
if (_numFreeSpecialAppInstances > 0)
{
app = (HttpApplication)_specialFreeList.Pop();
_numFreeSpecialAppInstances--;
}
}
if (app == null)
{
//
// Put the context on the thread, to make it available to anyone calling
// HttpContext.Current from the HttpApplication constructor or module Init
//
using (new DisposableHttpContextWrapper(context)) {
// If ran out of instances, create a new one
app = (HttpApplication)HttpRuntime.CreateNonPublicInstance(_theApplicationType);
using (new ApplicationImpersonationContext()) {
app.InitSpecial(_state, _eventHandlerMethods, appContext, context);
}
}
}
return(app);
}
//
// Application instance management
//
private HttpApplication GetNormalApplicationInstance(HttpContext context)
{
HttpApplication app = null;
lock (_freeList) {
if (_numFreeAppInstances > 0)
{
app = (HttpApplication)_freeList.Pop();
_numFreeAppInstances--;
if (_numFreeAppInstances < _minFreeAppInstances)
{
_minFreeAppInstances = _numFreeAppInstances;
}
}
}
if (app == null)
{
// If ran out of instances, create a new one
app = (HttpApplication)HttpRuntime.CreateNonPublicInstance(_theApplicationType);
using (new ApplicationImpersonationContext()) {
app.InitInternal(context, _state, _eventHandlerMethods);
}
}
if (AppSettings.UseTaskFriendlySynchronizationContext)
{
// When this HttpApplication instance is no longer in use, recycle it.
app.ApplicationInstanceConsumersCounter = new CountdownTask(1); // representing required call to HttpApplication.ReleaseAppInstance
app.ApplicationInstanceConsumersCounter.Task.ContinueWith((_, o) => RecycleApplicationInstance((HttpApplication)o), app, TaskContinuationOptions.ExecuteSynchronously);
}
return(app);
}
//
// Application instance management
//
private HttpApplication GetNormalApplicationInstance(HttpContext context)
{
HttpApplication app = null;
lock (_freeList) {
if (_numFreeAppInstances > 0)
{
app = (HttpApplication)_freeList.Pop();
_numFreeAppInstances--;
}
}
if (app == null)
{
// If ran out of instances, create a new one
app = (HttpApplication)HttpRuntime.CreateNonPublicInstance(_theApplicationType);
// be run while impersonating the token given by IIS (ASURT 112766)
context.Impersonation.Start(true /*forGlobalCode*/, false /*throwOnError*/);
try {
try {
app.InitInternal(context, _state, _eventHandlerMethods);
}
finally {
context.Impersonation.Stop();
}
}
catch { // Protect against exception filters
throw;
}
}
return(app);
}
private HttpApplication GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
{
HttpApplication application = null;
lock (this._specialFreeList)
{
if (this._numFreeSpecialAppInstances > 0)
{
application = (HttpApplication)this._specialFreeList.Pop();
this._numFreeSpecialAppInstances--;
}
}
if (application == null)
{
using (new DisposableHttpContextWrapper(context))
{
application = (HttpApplication)HttpRuntime.CreateNonPublicInstance(this._theApplicationType);
using (new ApplicationImpersonationContext())
{
application.InitSpecial(this._state, this._eventHandlerMethods, appContext, context);
}
}
}
return(application);
}
private HttpApplication GetNormalApplicationInstance(HttpContext context)
{
HttpApplication application = null;
lock (this._freeList)
{
if (this._numFreeAppInstances > 0)
{
application = (HttpApplication)this._freeList.Pop();
this._numFreeAppInstances--;
if (this._numFreeAppInstances < this._minFreeAppInstances)
{
this._minFreeAppInstances = this._numFreeAppInstances;
}
}
}
if (application == null)
{
application = (HttpApplication)HttpRuntime.CreateNonPublicInstance(this._theApplicationType);
using (new ApplicationImpersonationContext())
{
application.InitInternal(context, this._state, this._eventHandlerMethods);
}
}
return(application);
}
private HttpApplication GetSpecialApplicationInstance()
{
HttpApplication app = null;
lock (_specialFreeList) {
if (_numFreeSpecialAppInstances > 0)
{
app = (HttpApplication)_specialFreeList.Pop();
_numFreeSpecialAppInstances--;
}
}
if (app == null)
{
// If ran out of instances, create a new one
app = (HttpApplication)HttpRuntime.CreateNonPublicInstance(_theApplicationType);
app.InitSpecial(_state, _eventHandlerMethods);
}
return(app);
}
