CHttpModule::OnUpdateRequestCache Method

CHttpModule::OnUpdateRequestCache Method

IIS 7.0
 

Represents the method that will handle an UpdateRequestCache event, which occurs when IIS stores the request in the cache.

virtual REQUEST_NOTIFICATION_STATUS OnUpdateRequestCache(
   IN IHttpContext* pHttpContext,
   IN IHttpEventProvider* pProvider
);

pHttpContext

[IN] A pointer to an IHttpContext interface.

pProvider

[IN] A pointer to an IHttpEventProvider interface.

When a request-level module is registered for the RQ_UPDATE_REQUEST_CACHE event notification, IIS will call the module's OnUpdateRequestCache method when IIS stores the request in the cache.

System_CAPS_noteNote

Request-level modules can register for the UpdateRequestCache event notification by registering for RQ_UPDATE_REQUEST_CACHE in the module's RegisterModule function.

Example

The following code example demonstrates how to create a request-level HTTP module that registers for the RQ_UPDATE_REQUEST_CACHE event and post-event notifications. When IIS updates the cache, IIS will call the example module's OnUpdateRequestCache and OnPostUpdateRequestCache methods. Each method will write an entry in the application log of the Windows Event Viewer. When processing is complete, the module will exit.

Your module must export the RegisterModule function. You can export this function by creating a module definition (.def) file for your project, or you can compile the module by using the /EXPORT:RegisterModule switch. For more information, see Walkthrough: Creating a Request-Level HTTP Module By Using Native Code.

You can optionally compile the code by using the __stdcall (/Gz) calling convention instead of explicitly declaring the calling convention for each function.

Requirements

Type

Description

Client

  • IIS 7.0 on Windows Vista

  • IIS 7.5 on Windows 7

  • IIS 8.0 on Windows 8

  • IIS 10.0 on Windows 10

Server

  • IIS 7.0 on Windows Server 2008

  • IIS 7.5 on Windows Server 2008 R2

  • IIS 8.0 on Windows Server 2012

  • IIS 8.5 on Windows Server 2012 R2

  • IIS 10.0 on Windows Server 2016 Technical Preview

Product

  • IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0

  • IIS Express 7.5, IIS Express 8.0, IIS Express 10.0

Header

Httpserv.h

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