128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1999, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// pipeline.h
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//
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// SYNOPSIS
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//
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// Declares the class Pipeline.
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//
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// MODIFICATION HISTORY
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//
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// 01/28/2000 Original version.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef PIPELINE_H
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#define PIPELINE_H
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#if _MSC_VER >= 1000
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#pragma once
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#endif
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#include <iascomp.h>
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#include <iaspolcy.h>
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#include <iastlb.h>
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#include "resource.h"
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class Request;
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class Stage;
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///////////////////////////////////////////////////////////////////////////////
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//
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// CLASS
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//
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// Pipeline
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//
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///////////////////////////////////////////////////////////////////////////////
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class ATL_NO_VTABLE Pipeline :
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public CComObjectRootEx<CComMultiThreadModelNoCS>,
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public CComCoClass<Pipeline, &__uuidof(Pipeline)>,
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public IDispatchImpl< IIasComponent,
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&__uuidof(IIasComponent),
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&__uuidof(IASCoreLib) >,
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public IDispatchImpl< IRequestHandler,
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&__uuidof(IRequestHandler),
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&__uuidof(IASCoreLib) >,
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public IRequestSource
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{
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public:
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DECLARE_NO_REGISTRY()
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DECLARE_NOT_AGGREGATABLE(Pipeline)
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BEGIN_COM_MAP(Pipeline)
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COM_INTERFACE_ENTRY_IID(__uuidof(IIasComponent), IIasComponent)
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COM_INTERFACE_ENTRY_IID(__uuidof(IRequestHandler), IRequestHandler)
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COM_INTERFACE_ENTRY_IID(__uuidof(IRequestSource), IRequestSource)
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END_COM_MAP()
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// IIasComponent
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STDMETHOD(InitNew)();
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STDMETHOD(Initialize)();
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STDMETHOD(Suspend)();
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STDMETHOD(Resume)();
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STDMETHOD(Shutdown)();
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STDMETHOD(GetProperty)(LONG Id, VARIANT* pValue);
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STDMETHOD(PutProperty)(LONG Id, VARIANT* pValue);
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// IRequestHandler
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STDMETHOD(OnRequest)(IRequest* pRequest);
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// IRequestSource
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STDMETHOD(OnRequestComplete)(
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IRequest* pRequest,
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IASREQUESTSTATUS eStatus
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);
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protected:
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Pipeline() throw ();
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~Pipeline() throw ();
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private:
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DWORD tlsIndex; // Index into TLS for storing thread state.
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Stage* begin; // Beginning of the pipeline.
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Stage* end; // End of the pipeline.
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SAFEARRAY* handlers; // Handlers created and owned by the SDOs.
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ATTRIBUTEPOSITION proxy; // The provider for NAS-State requests.
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// Function type used with qsort.
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typedef int (__cdecl *CompFn)(const void*, const void*);
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// Determine the routing type of the request.
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void classify(Request& request) throw ();
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// Execute the request as much as possible.
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void execute(
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Request& request
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) throw ();
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// Execute the next interested stage. Returns TRUE if more stages are ready
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// to execute.
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BOOL executeNext(
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Request& request
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) throw ();
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// Read the stage configuration from the registry.
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LONG readConfiguration(HKEY key) throw ();
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// Initialize the stage's request handler.
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HRESULT initializeStage(Stage* stage) throw ();
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// Not implemented.
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Pipeline(const Pipeline&) throw ();
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Pipeline& operator=(const Pipeline&) throw ();
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};
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inline void Pipeline::execute(
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Request& request
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) throw ()
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{
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while (executeNext(request)) { }
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}
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#endif // PIPELINE_H
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