Leaked source code of windows server 2003
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/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
FaxDeviceProviders.h
Abstract:
Declaration of the CFaxDeviceProviders Class.
Author:
Iv Garber (IvG) Jun, 2000
Revision History:
--*/
#ifndef __FAXDEVICEPROVIDERS_H_
#define __FAXDEVICEPROVIDERS_H_
#include "resource.h" // main symbols
#include "FaxCommon.h"
#include <vector>
#include "VCUE_Copy.h"
#include "FaxDeviceProvider.h"
namespace DeviceProvidersNamespace
{
//
// Device Provider Objects are stored in Vector of STL.
// When initialized, they got ALL their data.
// They never call Fax Server.
// They do not depend neither on Fax Server nor on Device Providers Collection
// after they are created and initialized.
// So, they implemented as usual COM Objects.
// The Collection stores Ptrs to them, and makes ONE AddRef().
// Each time User asks for an Object from the Collection, an additional AddRef() happens.
// When killed, Collection calls Release() on all its Device Provider Objects.
// Those that are not asked by User, dies.
// Those, that have User's AddRef() - remains alive, untill User free its Reference on them.
// The Device Provider Object can continue to live after all objects are freed,
// including Fax Server and all its Descendants.
// THIS IS BECAUSE Device Provider Object and their Collection is Snap-Shot
// of the situation on the Server. They are not updatable, but a read-only objects.
// To get the updated data, User must ask new Collection from the Server.
//
typedef std::vector<IFaxDeviceProvider*> ContainerType;
// Use IEnumVARIANT as the enumerator for VB compatibility
typedef VARIANT EnumExposedType;
typedef IEnumVARIANT EnumIfc;
// Copy Classes
typedef VCUE::CopyIfc2Variant<ContainerType::value_type> EnumCopyType;
typedef VCUE::CopyIfc<ContainerType::value_type> CollectionCopyType;
// Enumeration Type, shortcut for next typedef
typedef CComEnumOnSTL< EnumIfc, &__uuidof(EnumIfc), EnumExposedType, EnumCopyType, ContainerType >
EnumType;
// Collection Type, real ancestor of the DeviceProvider Collection
typedef ICollectionOnSTLImpl< IFaxDeviceProviders, ContainerType, ContainerType::value_type,
CollectionCopyType, EnumType > CollectionType;
};
using namespace DeviceProvidersNamespace;
//
//==================== FAX DEVICE PROVIDERS ===========================================
//
class ATL_NO_VTABLE CFaxDeviceProviders :
public CComObjectRootEx<CComSingleThreadModel>,
public ISupportErrorInfo,
public IDispatchImpl<DeviceProvidersNamespace::CollectionType, &IID_IFaxDeviceProviders,
&LIBID_FAXCOMEXLib>,
public CFaxInitInner
{
public:
CFaxDeviceProviders() : CFaxInitInner(_T("FAX DEVICE PROVIDERS"))
{}
~CFaxDeviceProviders()
{
CCollectionKiller<DeviceProvidersNamespace::ContainerType> CKiller;
CKiller.EmptyObjectCollection(&m_coll);
}
DECLARE_REGISTRY_RESOURCEID(IDR_FAXDEVICEPROVIDERS)
DECLARE_NOT_AGGREGATABLE(CFaxDeviceProviders)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CFaxDeviceProviders)
COM_INTERFACE_ENTRY(IFaxDeviceProviders)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(ISupportErrorInfo)
COM_INTERFACE_ENTRY(IFaxInitInner)
END_COM_MAP()
// Interfaces
STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid);
STDMETHOD(get_Item)(/*[in]*/ VARIANT vIndex, /*[out, retval]*/ IFaxDeviceProvider **ppDeviceProvider);
// Internal Use
STDMETHOD(Init)(IFaxServerInner *pServerInner);
static HRESULT Create(IFaxDeviceProviders **ppDeviceProviders);
};
#endif //__FAXDEVICEPROVIDERS_H_