Leaked source code of windows server 2003
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/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
FaxDevices.h
Abstract:
Declaration of the CFaxDevices class.
Author:
Iv Garber (IvG) Jun, 2000
Revision History:
--*/
#ifndef __FAXDEVICES_H_
#define __FAXDEVICES_H_
#include "resource.h" // main symbols
#include "FaxCommon.h"
#include <vector>
#include "VCUE_Copy.h"
#include "FaxDevice.h"
namespace DevicesNamespace
{
//
// Device Objects are stored in Vector of STL.
// When initialized, they got ALL their data, and Fax Server Ptr.
// They do not depend on Devices Collection, only on Fax Server.
// So, they implemented as usual COM Objects.
// They inherit from CFaxInitInnerAddRef class, which means they make AddRef()
// on Fax Server ( at Init() ).
// By doing this, the objects prevent the death of the Fax Server prematurely.
// So, if the User frees all its references to the Fax Server, but holds its
// reference to the Device Object, the Device Object will continue to work,
// because Fax Server Object actually did not died.
// 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 were not requested by the User, dies.
// Those, that have User's AddRef() - remains alive, untill User free its Reference on them.
// Fax Server remains alive untill all the Device Collections and all Device Objects are killed.
// At their death, they Release() the Fax Server.
//
typedef std::vector<IFaxDevice*> 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;
typedef CComEnumOnSTL< EnumIfc, &__uuidof(EnumIfc), EnumExposedType, EnumCopyType,
ContainerType > EnumType;
typedef ICollectionOnSTLImpl< IFaxDevices, ContainerType, ContainerType::value_type,
CollectionCopyType, EnumType > CollectionType;
};
using namespace DevicesNamespace;
//
//===================== FAX DEVICES =============================================
//
class ATL_NO_VTABLE CFaxDevices :
public CComObjectRootEx<CComSingleThreadModel>,
public ISupportErrorInfo,
public IDispatchImpl<DevicesNamespace::CollectionType, &IID_IFaxDevices, &LIBID_FAXCOMEXLib>,
public CFaxInitInner // for Debug + Creation thru CObjectHandler
{
public:
CFaxDevices() : CFaxInitInner(_T("FAX DEVICES"))
{
}
~CFaxDevices()
{
CCollectionKiller<DevicesNamespace::ContainerType> CKiller;
CKiller.EmptyObjectCollection(&m_coll);
}
DECLARE_REGISTRY_RESOURCEID(IDR_FAXDEVICES)
DECLARE_NOT_AGGREGATABLE(CFaxDevices)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CFaxDevices)
COM_INTERFACE_ENTRY(IFaxDevices)
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]*/ IFaxDevice **ppDevice);
STDMETHOD(get_ItemById)(/*[in]*/ long lId, /*[out, retval]*/ IFaxDevice **ppFaxDevice);
// Internal Use
static HRESULT Create(IFaxDevices **ppDevices);
STDMETHOD(Init)(IFaxServerInner *pServer);
};
#endif //__FAXDEVICES_H_