655 lines
14 KiB
C++
655 lines
14 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2001 Microsoft Corporation
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//
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// Module Name:
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// EnumIPAddresses.cpp
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//
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// Description:
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// CEnumIPAddress implementation.
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//
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// Maintained By:
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// Galen Barbee (GalenB) 24-MAY-2000
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//
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//////////////////////////////////////////////////////////////////////////////
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#include "pch.h"
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#include "IPAddressInfo.h"
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#include "EnumIPAddresses.h"
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DEFINE_THISCLASS("CEnumIPAddresses")
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// ************************************************************************
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//
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// Constructor / Destructor
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// HRESULT
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// CEnumIPAddresses::S_HrCreateInstance(
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// IUnknown ** ppunkOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEnumIPAddresses::S_HrCreateInstance(
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IUnknown ** ppunkOut
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)
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{
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TraceFunc( "" );
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Assert( ppunkOut != NULL );
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HRESULT hr;
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CEnumIPAddresses * pemn = new CEnumIPAddresses;
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if ( pemn != NULL )
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{
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hr = THR( pemn->Init( ) );
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if ( SUCCEEDED( hr ) )
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{
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hr = THR( pemn->TypeSafeQI( IUnknown, ppunkOut ) );
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}
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pemn->Release( );
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}
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else
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{
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hr = E_OUTOFMEMORY;
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}
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HRETURN( hr );
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} // S_HrCreateInstance( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// CEnumIPAddresses::CEnumIPAddresses( void )
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//
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//////////////////////////////////////////////////////////////////////////////
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CEnumIPAddresses::CEnumIPAddresses( void )
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{
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TraceFunc( "" );
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InterlockedIncrement( &g_cObjects );
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TraceFuncExit();
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} // CEnumIPAddresses( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Init( void )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Init( void )
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{
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TraceFunc( "" );
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HRESULT hr = S_OK;
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// IUnknown stuff
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Assert( m_cRef == 0 );
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AddRef( ); // Add one count
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// IEnumClusCfgIPAddresses
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HRETURN( hr );
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} // Init( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// CEnumIPAddresses::~CEnumIPAddresses( )
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//
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//////////////////////////////////////////////////////////////////////////////
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CEnumIPAddresses::~CEnumIPAddresses( )
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{
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TraceFunc( "" );
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if ( m_pList != NULL )
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{
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while ( m_cAlloced != 0 )
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{
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m_cAlloced --;
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(m_pList[ m_cAlloced ])->Release( );
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}
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}
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InterlockedDecrement( &g_cObjects );
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TraceFuncExit();
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} // ~CEnumIPAddresses( )
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// ************************************************************************
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//
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// IUnknown
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::QueryInterface(
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// REFIID riid,
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// LPVOID *ppv
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::QueryInterface(
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REFIID riid,
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LPVOID *ppv
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)
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{
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TraceQIFunc( riid, ppv );
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HRESULT hr = E_NOINTERFACE;
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if ( IsEqualIID( riid, IID_IUnknown ) )
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{
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*ppv = static_cast< IEnumClusCfgIPAddresses * >( this );
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hr = S_OK;
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} // if: IUnknown
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else if ( IsEqualIID( riid, IID_IEnumClusCfgIPAddresses ) )
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{
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*ppv = TraceInterface( __THISCLASS__, IEnumClusCfgIPAddresses, this, 0 );
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hr = S_OK;
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} // else if: IEnumClusCfgIPAddresses
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else if ( IsEqualIID( riid, IID_IExtendObjectManager ) )
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{
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*ppv = TraceInterface( __THISCLASS__, IExtendObjectManager, this, 0 );
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hr = S_OK;
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} // else if: IExtendObjectManager
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if ( SUCCEEDED( hr ) )
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{
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((IUnknown*) *ppv)->AddRef( );
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} // if: success
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QIRETURN_IGNORESTDMARSHALLING( hr, riid );
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} // QueryInterface( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP_(ULONG)
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// CEnumIPAddresses::AddRef( void )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_(ULONG)
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CEnumIPAddresses::AddRef( void )
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{
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TraceFunc( "[IUnknown]" );
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InterlockedIncrement( &m_cRef );
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RETURN( m_cRef );
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} // AddRef( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP_(ULONG)
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// CEnumIPAddresses::Release( void )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_(ULONG)
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CEnumIPAddresses::Release( void )
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{
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TraceFunc( "[IUnknown]" );
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InterlockedDecrement( &m_cRef );
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if ( m_cRef )
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RETURN( m_cRef );
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TraceDo( delete this );
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RETURN(0);
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} // Release( )
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// ************************************************************************
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//
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// IExtendObjectManager
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::FindObject(
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// OBJECTCOOKIE cookieIn
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// , REFCLSID rclsidTypeIn
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// , LPCWSTR pcszNameIn
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// , LPUNKNOWN * punkOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::FindObject(
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OBJECTCOOKIE cookieIn
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, REFCLSID rclsidTypeIn
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, LPCWSTR pcszNameIn
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, LPUNKNOWN * ppunkOut
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)
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{
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TraceFunc( "[IExtendObjectManager]" );
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OBJECTCOOKIE cookie;
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OBJECTCOOKIE cookieParent;
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IServiceProvider * psp;
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HRESULT hr = E_UNEXPECTED;
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IObjectManager * pom = NULL;
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IStandardInfo * psi = NULL;
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IEnumCookies * pec = NULL;
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DWORD cookieCount = 0;
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//
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// Check arguments
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//
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if ( cookieIn == 0 )
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goto InvalidArg;
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if ( rclsidTypeIn != CLSID_IPAddressType )
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goto InvalidType;
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if ( ppunkOut == NULL )
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goto InvalidPointer;
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AssertMsg( pcszNameIn == NULL, "Enums shouldn't have names." );
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//
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// Grab the object manager.
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//
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hr = THR( CoCreateInstance( CLSID_ServiceManager,
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NULL,
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CLSCTX_INPROC_SERVER,
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TypeSafeParams( IServiceProvider, &psp )
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) );
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if ( FAILED( hr ) )
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goto Cleanup;
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hr = THR( psp->TypeSafeQS( CLSID_ObjectManager,
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IObjectManager,
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&pom
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) );
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psp->Release( ); // release promptly
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if ( FAILED( hr ) )
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goto Cleanup;
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//
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// Ask the Object Manager for information about our cookie so we can
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// get to the "parent" cookie.
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//
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hr = THR( pom->GetObject( DFGUID_StandardInfo,
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cookieIn,
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reinterpret_cast< IUnknown ** >( &psi )
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) );
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if ( FAILED( hr ) )
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goto Cleanup;
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hr = STHR( psi->GetParent( &cookieParent ) );
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if ( FAILED( hr ) )
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goto Cleanup;
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//
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// Now ask the Object Manager for a cookie enumerator.
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//
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hr = THR( pom->FindObject( CLSID_IPAddressType,
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cookieParent,
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NULL,
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DFGUID_EnumCookies,
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NULL,
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reinterpret_cast< IUnknown ** >( &pec )
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) );
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if ( FAILED( hr ) )
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goto Cleanup;
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pec = TraceInterface( L"CEnumIPAddresses!IEnumCookies", IEnumCookies, pec, 1 );
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//
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// Ask the enumerator how many cookies it has.
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//
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hr = THR( pec->Count( &cookieCount ) );
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if ( FAILED( hr ) )
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goto Cleanup;
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m_cAlloced = cookieCount;
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if ( m_cAlloced == 0 )
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goto ErrorNotFound;
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//
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// Allocate a buffer to store the punks.
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//
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m_pList = (IClusCfgIPAddressInfo **) TraceAlloc( HEAP_ZERO_MEMORY, m_cAlloced * sizeof(IClusCfgIPAddressInfo *) );
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if ( m_pList == NULL )
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goto OutOfMemory;
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//
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// Reset the enumerator.
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//
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hr = THR( pec->Reset( ) );
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if ( FAILED( hr ) )
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goto Cleanup;
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//
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// Now loop thru to collect the interfaces.
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//
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m_cIter = 0;
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while ( hr == S_OK && m_cIter < m_cAlloced )
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{
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hr = STHR( pec->Next( 1, &cookie, NULL ) );
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if ( FAILED( hr ) )
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goto Cleanup;
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if ( hr == S_FALSE )
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break; // exit condition
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hr = THR( pom->GetObject( DFGUID_IPAddressInfo,
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cookie,
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reinterpret_cast< IUnknown ** >( &m_pList[ m_cIter ] )
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) );
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if ( FAILED( hr ) )
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goto Cleanup;
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m_cIter++;
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} // while: S_OK
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//
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// Reset the iter.
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//
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m_cIter = 0;
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//
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// Grab the interface.
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//
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hr = THR( QueryInterface( DFGUID_EnumIPAddressInfo,
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reinterpret_cast< void ** >( ppunkOut )
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) );
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if ( FAILED( hr ) )
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goto Cleanup;
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Cleanup:
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if ( pom != NULL )
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{
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pom->Release( );
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}
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if ( psi != NULL )
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{
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psi->Release( );
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}
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if ( pec != NULL )
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{
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pec->Release( );
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}
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HRETURN( hr );
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InvalidArg:
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hr = THR( E_INVALIDARG );
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goto Cleanup;
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InvalidPointer:
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hr = THR( E_POINTER );
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goto Cleanup;
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InvalidType:
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//
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// TODO: gpease 07-APR-2000
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// Come up with a better error code.
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//
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hr = THR( E_FAIL );
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goto Cleanup;
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ErrorNotFound:
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// The error text is better than the coding value.
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hr = THR( HRESULT_FROM_WIN32( ERROR_NOT_FOUND ) );
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goto Cleanup;
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OutOfMemory:
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hr = E_OUTOFMEMORY;
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goto Cleanup;
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} // FindObject( )
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//****************************************************************************
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//
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// IEnumClusCfgIPAddresses
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//
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//****************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Next(
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// ULONG celt,
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// IClusCfgNode ** rgOut,
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// ULONG * pceltFetchedOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Next(
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ULONG celt,
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IClusCfgIPAddressInfo * rgOut[],
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ULONG * pceltFetchedOut
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)
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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ULONG celtFetched;
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HRESULT hr = E_UNEXPECTED;
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//
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// Check parameters
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//
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if ( rgOut == NULL || celt == 0 )
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goto InvalidPointer;
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//
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// Zero the return count.
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//
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if ( pceltFetchedOut != NULL )
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{
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*pceltFetchedOut = 0;
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}
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//
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// Clear the buffer
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//
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ZeroMemory( rgOut, celt * sizeof(rgOut[0]) );
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//
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// Loop thru copying the interfaces.
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//
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for( celtFetched = 0
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; celtFetched + m_cIter < m_cAlloced && celtFetched < celt
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; celtFetched ++
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)
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{
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hr = THR( m_pList[ m_cIter + celtFetched ]->TypeSafeQI( IClusCfgIPAddressInfo, &rgOut[ celtFetched ] ) );
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if ( FAILED( hr ) )
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goto CleanupList;
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rgOut[ celtFetched ] = TraceInterface( L"EnumIPAddresses!IClusCfgIPAddressInfo", IClusCfgIPAddressInfo, rgOut[ celtFetched ], 1 );
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} // for: celtFetched
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if ( pceltFetchedOut != NULL )
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{
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*pceltFetchedOut = celtFetched;
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}
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m_cIter += celtFetched;
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if ( celtFetched != celt )
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{
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hr = S_FALSE;
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}
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else
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{
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hr = S_OK;
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}
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Cleanup:
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HRETURN( hr );
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CleanupList:
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for ( ; celtFetched != 0 ; )
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{
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celtFetched --;
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rgOut[ celtFetched ]->Release( );
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rgOut[ celtFetched ] = NULL;
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}
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goto Cleanup;
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InvalidPointer:
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hr = THR( E_POINTER );
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goto Cleanup;
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} // Next( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Skip(
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// ULONG celt
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Skip(
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ULONG celt
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)
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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HRESULT hr = S_OK;
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m_cIter += celt;
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if ( m_cIter > m_cAlloced )
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{
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m_cIter = m_cAlloced;
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hr = S_FALSE;
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}
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HRETURN( hr );
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} // Skip( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Reset( void )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Reset( void )
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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HRESULT hr = S_OK;
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m_cIter = 0;
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HRETURN( hr );
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} // Reset( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Clone(
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// IEnumClusCfgIPAddresses ** ppenumOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Clone(
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IEnumClusCfgIPAddresses ** ppenumOut
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)
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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//
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// KB: not going to implement this method.
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//
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HRESULT hr = THR( E_NOTIMPL );
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HRETURN( hr );
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} // Clone( )
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Count(
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// DWORD * pnCountOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Count(
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DWORD * pnCountOut
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)
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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HRESULT hr = S_OK;
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if ( pnCountOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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*pnCountOut = m_cAlloced;
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Cleanup:
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HRETURN( hr );
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}// Count( )
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