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windows-nt/Source/XPSP1/NT/base/cluster/mgmt/cluscfg/server/cenumcluscfgmanagedresources.cpp

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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2001 Microsoft Corporation
//
// Module Name:
// CEnumClusCfgManagedResources.cpp
//
// Description:
// This file contains the definition of the CEnumClusCfgManagedResources
// class.
//
// The class CEnumClusCfgManagedResources is the enumeration of cluster
// managed devices. It implements the IEnumClusCfgManagedResources
// interface.
//
// Documentation:
//
// Header File:
// CEnumClusCfgManagedResources.h
//
// Maintained By:
// Galen Barbee (GalenB) 23-FEB-2000
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// Include Files
//////////////////////////////////////////////////////////////////////////////
#include "pch.h"
#include "CEnumClusCfgManagedResources.h"
#include "CEnumUnknownQuorum.h"
//////////////////////////////////////////////////////////////////////////////
// Constant Definitions
//////////////////////////////////////////////////////////////////////////////
DEFINE_THISCLASS( "CEnumClusCfgManagedResources" );
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources class
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::S_HrCreateInstance
//
// Description:
// Create a CEnumClusCfgManagedResources instance.
//
// Arguments:
// None.
//
// Return Values:
// Pointer to CEnumClusCfgManagedResources instance.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::S_HrCreateInstance( IUnknown ** ppunkOut )
{
TraceFunc( "" );
HRESULT hr;
CEnumClusCfgManagedResources * pccsd = NULL;
if ( ppunkOut == NULL )
{
hr = THR( E_POINTER );
goto Cleanup;
} // if:
pccsd = new CEnumClusCfgManagedResources();
if ( pccsd == NULL )
{
hr = THR( E_OUTOFMEMORY );
goto Cleanup;
} // if: error allocating object
hr = THR( pccsd->HrInit() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if: HrInit() failed
hr = THR( pccsd->TypeSafeQI( IUnknown, ppunkOut ) );
Cleanup:
if ( FAILED( hr ) )
{
LogMsg( L"[SRV] CEnumClusCfgManagedResources::S_HrCreateInstance() failed. (hr = %#08x)", hr );
} // if:
if ( pccsd != NULL )
{
pccsd->Release();
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::S_HrCreateInstance
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::CEnumClusCfgManagedResources
//
// Description:
// Constructor of the CEnumClusCfgManagedResources class. This initializes
// the m_cRef variable to 1 instead of 0 to account of possible
// QueryInterface failure in DllGetClassObject.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
CEnumClusCfgManagedResources::CEnumClusCfgManagedResources( void )
: m_cRef( 1 )
, m_lcid( LOCALE_NEUTRAL )
{
TraceFunc( "" );
Assert( m_idxNextProvider == 0 );
Assert( m_idxCurrentProvider == 0 );
Assert( m_picccCallback == NULL );
Assert( m_pIWbemServices == NULL );
Assert( m_rgpProviders == NULL );
Assert( m_cTotalResources == 0);
Assert( !m_fLoadedDevices );
Assert( m_bstrNodeName == NULL );
// Increment the count of components in memory so the DLL hosting this
// object cannot be unloaded.
InterlockedIncrement( &g_cObjects );
TraceFuncExit();
} //*** CEnumClusCfgManagedResources::CEnumClusCfgManagedResources
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::~CEnumClusCfgManagedResources
//
// Description:
// Desstructor of the CEnumClusCfgManagedResources class.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
CEnumClusCfgManagedResources::~CEnumClusCfgManagedResources( void )
{
TraceFunc( "" );
ULONG idx;
if ( m_pIWbemServices != NULL )
{
m_pIWbemServices->Release();
} // if:
if ( m_picccCallback != NULL )
{
m_picccCallback->Release();
} // if:
for ( idx = 0; idx < m_idxNextProvider; idx++ )
{
((*m_rgpProviders)[ idx ])->Release();
} // for:
TraceFree( m_rgpProviders );
TraceSysFreeString( m_bstrNodeName );
// There's going to be one less component in memory. Decrement component count.
InterlockedDecrement( &g_cObjects );
TraceFuncExit();
} //*** CEnumClusCfgManagedResources::~CEnumClusCfgManagedResources
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources -- IUknkown interface.
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// STDMETHODIMP_( ULONG )
// CEnumClusCfgManagedResources:: [IUNKNOWN] AddRef
//
// Description:
// Increment the reference count of this object by one.
//
// Arguments:
// None.
//
// Return Value:
// The new reference count.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG )
CEnumClusCfgManagedResources::AddRef( void )
{
TraceFunc( "[IUnknown]" );
InterlockedIncrement( & m_cRef );
RETURN( m_cRef );
} //*** CEnumClusCfgManagedResources::AddRef
//////////////////////////////////////////////////////////////////////////////
//++
//
// STDMETHODIMP_( ULONG )
// CEnumClusCfgManagedResources:: [IUNKNOWN] Release
//
// Description:
// Decrement the reference count of this object by one.
//
// Arguments:
// None.
//
// Return Value:
// The new reference count.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG )
CEnumClusCfgManagedResources::Release( void )
{
TraceFunc( "[IUnknown]" );
LONG cRef;
cRef = InterlockedDecrement( &m_cRef );
if ( cRef == 0 )
{
TraceDo( delete this );
} // if: reference count equal to zero
RETURN( cRef );
} //*** CEnumClusCfgManagedResources::Release
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:: [INKNOWN] QueryInterface
//
// Description:
// Query this object for the passed in interface.
//
// Arguments:
// IN REFIID riid,
// Id of interface requested.
//
// OUT void ** ppv
// Pointer to the requested interface.
//
// Return Value:
// S_OK
// If the interface is available on this object.
//
// E_NOINTERFACE
// If the interface is not available.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::QueryInterface( REFIID riid, void ** ppv )
{
TraceQIFunc( riid, ppv );
HRESULT hr = E_NOINTERFACE;
if ( IsEqualIID( riid, IID_IUnknown ) )
{
*ppv = static_cast< IEnumClusCfgManagedResources * >( this );
hr = S_OK;
} // if: IUnknown
else if ( IsEqualIID( riid, IID_IEnumClusCfgManagedResources ) )
{
*ppv = TraceInterface( __THISCLASS__, IEnumClusCfgManagedResources, this, 0 );
hr = S_OK;
} // else if:
else if ( IsEqualIID( riid, IID_IClusCfgWbemServices ) )
{
*ppv = TraceInterface( __THISCLASS__, IClusCfgWbemServices, this, 0 );
hr = S_OK;
} // else if:
else if ( IsEqualIID( riid, IID_IClusCfgInitialize ) )
{
*ppv = TraceInterface( __THISCLASS__, IClusCfgInitialize, this, 0 );
hr = S_OK;
} // else if:
if ( SUCCEEDED( hr ) )
{
((IUnknown *) *ppv)->AddRef( );
} // if: success
QIRETURN_IGNORESTDMARSHALLING( hr, riid );
} //*** CEnumClusCfgManagedResources::QueryInterface
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources -- IClusCfgWbemServices interface.
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::SetWbemServices
//
// Description:
// Set the WBEM services provider.
//
// Arguments:
// IN IWbemServices pIWbemServicesIn
//
// Return Value:
// S_OK
// Success
//
// E_POINTER
// The pIWbemServicesIn param is NULL.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::SetWbemServices( IWbemServices * pIWbemServicesIn )
{
TraceFunc( "[IClusCfgWbemServices]" );
HRESULT hr = S_OK;
if ( pIWbemServicesIn == NULL )
{
hr = THR( E_POINTER );
STATUS_REPORT( TASKID_Major_Find_Devices, TASKID_Minor_SetWbemServices_Enum_Resources, IDS_ERROR_NULL_POINTER, hr );
goto Cleanup;
} // if:
m_pIWbemServices = pIWbemServicesIn;
m_pIWbemServices->AddRef();
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::SetWbemServices
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources -- IClusCfgInitialize interface.
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Initialize
//
// Description:
// Initialize this component.
//
// Arguments:
// IN IUknown * punkCallbackIn
//
// IN LCID lcidIn
//
// Return Value:
// S_OK
// Success
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Initialize(
IUnknown * punkCallbackIn,
LCID lcidIn
)
{
TraceFunc( "[IClusCfgInitialize]" );
Assert( m_picccCallback == NULL );
HRESULT hr = S_OK;
m_lcid = lcidIn;
if ( punkCallbackIn == NULL )
{
hr = THR( E_POINTER );
goto Cleanup;
} // if:
hr = THR( punkCallbackIn->TypeSafeQI( IClusCfgCallback, &m_picccCallback ) );
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Initialize
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources -- IEnumClusCfgManagedResources interface.
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Next
//
// Description:
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Next(
ULONG cNumberRequestedIn,
IClusCfgManagedResourceInfo ** rgpManagedResourceInfoOut,
ULONG * pcNumberFetchedOut
)
{
TraceFunc( "[IEnumClusCfgManagedResources]" );
HRESULT hr;
ULONG cFetched = 0;
if ( rgpManagedResourceInfoOut == NULL )
{
hr = THR( E_POINTER );
STATUS_REPORT( TASKID_Major_Find_Devices, TASKID_Minor_Next_Enum_Resources, IDS_ERROR_NULL_POINTER, hr );
goto Cleanup;
} // if:
if ( !m_fLoadedDevices )
{
hr = THR( HrLoadEnum() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
} // if:
hr = STHR( HrDoNext( cNumberRequestedIn, rgpManagedResourceInfoOut, &cFetched ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( pcNumberFetchedOut != NULL )
{
*pcNumberFetchedOut = cFetched;
} // if:
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Next
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Skip
//
// Description:
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Skip( ULONG cNumberToSkipIn )
{
TraceFunc( "[IEnumClusCfgManagedResources]" );
HRESULT hr = S_FALSE;
if ( cNumberToSkipIn > 0 )
{
hr = STHR( HrDoSkip( cNumberToSkipIn ) );
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Skip
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Reset
//
// Description:
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Reset( void )
{
TraceFunc( "[IEnumClusCfgManagedResources]" );
HRESULT hr;
hr = THR( HrDoReset() );
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Reset
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Clone
//
// Description:
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Clone(
IEnumClusCfgManagedResources ** ppEnumClusCfgManagedResourcesOut
)
{
TraceFunc( "[IEnumClusCfgManagedResources]" );
HRESULT hr = S_OK;
if ( ppEnumClusCfgManagedResourcesOut == NULL )
{
hr = THR( E_POINTER );
STATUS_REPORT( TASKID_Major_Find_Devices, TASKID_Minor_Clone_Enum_Resources, IDS_ERROR_NULL_POINTER, hr );
goto Cleanup;
} // else:
hr = THR( HrDoClone( ppEnumClusCfgManagedResourcesOut ) );
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Clone
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::Count
//
// Description:
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumClusCfgManagedResources::Count( DWORD * pnCountOut )
{
TraceFunc( "[IEnumClusCfgManagedResources]" );
HRESULT hr = S_OK;
if ( pnCountOut == NULL )
{
hr = THR( E_POINTER );
goto Cleanup;
} // if:
if ( !m_fLoadedDevices )
{
hr = THR( HrLoadEnum() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
} // if:
*pnCountOut = m_cTotalResources;
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::Count
//*************************************************************************//
/////////////////////////////////////////////////////////////////////////////
// CEnumClusCfgManagedResources class -- Private Methods.
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrInit
//
// Description:
// Initialize this component.
//
// Arguments:
// None.
//
// Return Value:
//
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrInit( void )
{
TraceFunc( "" );
HRESULT hr = S_OK;
hr = THR( HrGetComputerName( ComputerNameNetBIOS, &m_bstrNodeName ) );
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrInit
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrLoadEnum
//
// Description:
// Load this enumerator.
//
// Arguments:
// None.
//
// Return Value:
//
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrLoadEnum( void )
{
TraceFunc( "" );
HRESULT hr;
IUnknown * punk = NULL;
ICatInformation * pici = NULL;
CATID rgCatIds[ 1 ];
IEnumCLSID * pieclsids = NULL;
IEnumClusCfgManagedResources * pieccmr = NULL;
CLSID clsid;
ULONG cFetched;
rgCatIds[ 0 ] = CATID_EnumClusCfgManagedResources;
hr = THR( CoCreateInstance( CLSID_StdComponentCategoriesMgr, NULL, CLSCTX_INPROC_SERVER, IID_ICatInformation, (void **) &pici ) );
if ( FAILED( hr ) )
{
goto Cleanup;
}
hr = THR( pici->EnumClassesOfCategories( 1, rgCatIds, 0, NULL, &pieclsids ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
for ( ; ; )
{
hr = STHR( pieclsids->Next( 1, &clsid, &cFetched ) );
if ( FAILED( hr ) )
{
break;
} // if:
if ( ( hr == S_FALSE ) && ( cFetched == 0 ) )
{
hr = S_OK;
break;
} // if:
hr = THR( HrCoCreateInternalInstance( clsid, NULL, CLSCTX_SERVER, IID_IEnumClusCfgManagedResources, (void **) &pieccmr ) );
if ( FAILED( hr ) )
{
break;
} // if:
hr = THR( pieccmr->TypeSafeQI( IUnknown, &punk ) );
if ( FAILED( hr ) )
{
break;
} // if:
punk = TraceInterface( L"IEnumClusCfgManagedResources", IUnknown, punk, 1 );
pieccmr->Release();
pieccmr = NULL;
hr = STHR( HrInitializeAndSaveProvider( punk ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_OK )
{
m_fLoadedDevices = TRUE; // there is at least one provider loaded.
} // if:
punk->Release();
punk = NULL;
} // for:
hr = STHR( HrLoadUnknownQuorumProvider() );
Cleanup:
if ( pieclsids != NULL )
{
pieclsids->Release();
} // if:
if ( pici != NULL )
{
pici->Release();
} // if:
if ( pieccmr != NULL )
{
pieccmr->Release();
} // if:
if ( punk != NULL )
{
punk->Release();
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrLoadEnum
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrDoNext
//
// Description:
// Gets the required number of elements from the contained physical disk
// and optional 3rd party device enumerations.
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrDoNext(
ULONG cNumberRequestedIn,
IClusCfgManagedResourceInfo ** rgpManagedResourceInfoOut,
ULONG * pcNumberFetchedOut
)
{
TraceFunc( "" );
HRESULT hr = S_FALSE;
IEnumClusCfgManagedResources * peccsd = NULL;
ULONG cRequested = cNumberRequestedIn;
ULONG cFetched;
ULONG cTotal = 0;
IClusCfgManagedResourceInfo ** ppccmriTemp = rgpManagedResourceInfoOut;
while ( m_idxCurrentProvider < m_idxNextProvider )
{
hr = THR( ((*m_rgpProviders)[ m_idxCurrentProvider ])->TypeSafeQI( IEnumClusCfgManagedResources, &peccsd ) );
if ( FAILED( hr ) )
{
//
// KB: 06 Apr 2000 GalenB
//
// This failure and the one below are a little trickery in action. If something
// fails and we have already retrieved some elements from one, or more, of the enums
// it makes sense to change the failure to S_FALSE and return what we have.
// This makes cleanup easier since we don't have to reset the enums that have
// already given us some elements. Then, if we're called again we should get
// the same failure, with no retrieved elements and can simply return the
// failure.
//
if ( cTotal > 0 )
{
hr = STHR( S_FALSE );
} // if:
goto Cleanup;
} // if:
hr = STHR( peccsd->Next( cRequested, ppccmriTemp, &cFetched ) );
//
// KB: 06 Apr 2000 GalenB
//
// Release the enum now to make things much easier. It is true that we will most
// likely QI twice for each enum, but the effort to optimize this just doesn't
// seem worth it.
//
peccsd->Release();
peccsd = NULL;
if ( FAILED( hr ) )
{
if ( cTotal > 0 )
{
hr = STHR( S_FALSE );
} // if: See KB above...
goto Cleanup;
} // if:
if ( hr == S_OK )
{
cTotal += cFetched;
//
// KB: 06 Apr 2000 GalenB
//
// We can only return S_OK if the number of elements returned is equal to
// the number of elements requested. If the number request is greater than
// the number returned then we must return S_FALSE.
//
Assert( cNumberRequestedIn == cTotal );
*pcNumberFetchedOut = cTotal;
break;
} // if:
if ( hr == S_FALSE )
{
//
// KB: 06 Apr 2000 GalenB
//
// The only time that we can be certain that an enumerator is empty is to get S_FALSE
// and no elements returned.
//
if ( cFetched == 0 )
{
m_idxCurrentProvider++;
continue;
} // if:
cTotal += cFetched;
*pcNumberFetchedOut = cTotal;
cRequested -= cFetched;
if ( cRequested > 0 )
{
ppccmriTemp += cFetched;
continue;
} // if: Safety check... Ensure that we still need more elements...
else
{
hr = S_FALSE;
LOG_STATUS_REPORT1( TASKID_Minor_MREnum_Negative_Item_Count, L"The managed resources enumerator tried to return more items than asked for.", hr );
goto Cleanup;
} // else: Should not get here...
} // if:
// should not get here...
hr = S_FALSE;
LOG_STATUS_REPORT1( TASKID_Minor_MREnum_Unknown_State, L"The mana b bged resources enumerator encountered an unknown state.", hr );
goto Cleanup;
} // while: more providers
Cleanup:
if ( peccsd != NULL )
{
peccsd->Release();
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrDoNext
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrDoSkip
//
// Description:
// Skips the required number of elements in the contained physical disk
// and optional 3rd party device enumerations.
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrDoSkip( ULONG cNumberToSkipIn )
{
TraceFunc( "" );
HRESULT hr = S_FALSE;
IEnumClusCfgManagedResources * peccsd = NULL;
ULONG cSkipped = 0;
for ( ; m_idxCurrentProvider < m_idxNextProvider; )
{
hr = THR( ((*m_rgpProviders)[ m_idxCurrentProvider ])->TypeSafeQI( IEnumClusCfgManagedResources, &peccsd ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
do
{
hr = STHR( peccsd->Skip( 1 ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_FALSE )
{
m_idxCurrentProvider++;
break;
} // if:
}
while( cNumberToSkipIn >= (++cSkipped) );
peccsd->Release();
peccsd = NULL;
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( cNumberToSkipIn == cSkipped )
{
break;
} // if:
} // for:
Cleanup:
if ( peccsd != NULL )
{
peccsd->Release();
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrDoSkip
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrDoReset
//
// Description:
// Resets the elements in the contained physical disk and optional 3rd
// party device enumerations.
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrDoReset( void )
{
TraceFunc( "" );
HRESULT hr = S_FALSE;
IEnumClusCfgManagedResources * peccsd;
ULONG idx;
m_idxCurrentProvider = 0;
for ( idx = m_idxCurrentProvider; idx < m_idxNextProvider; idx++ )
{
hr = THR( ((*m_rgpProviders)[ idx ])->TypeSafeQI( IEnumClusCfgManagedResources, &peccsd ) );
if ( FAILED( hr ) )
{
break;
} // if:
hr = STHR( peccsd->Reset() );
peccsd->Release();
if ( FAILED( hr ) )
{
break;
} // if:
} // for:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrDoReset
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources::HrDoClone
//
// Description:
// Clones the elements in the contained physical disk and optional 3rd
// party device enumerations.
//
// Arguments:
//
// Return Value:
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrDoClone(
IEnumClusCfgManagedResources ** ppEnumClusCfgManagedResourcesOut
)
{
TraceFunc( "" );
HRESULT hr = THR( E_NOTIMPL );
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrDoClone
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrAddToProvidersArray
//
// Description:
// Add the passed in punk to the array of punks that holds the enums.
//
// Arguments:
//
//
// Return Value:
// S_OK
// Success
//
// E_OUTOFMEMORY
// Couldn't allocate memeory.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrAddToProvidersArray( IUnknown * punkIn )
{
TraceFunc( "" );
HRESULT hr = S_OK;
IUnknown * ((*rgpunks)[]) = NULL;
IEnumClusCfgManagedResources * pieccmr = NULL;
DWORD nAmountToAdd = 0;
hr = punkIn->TypeSafeQI( IEnumClusCfgManagedResources, &pieccmr );
if ( FAILED (hr) )
{
goto Cleanup;
} // if:
hr = pieccmr->Count( &nAmountToAdd );
if ( FAILED (hr) )
{
goto Cleanup;
} // if:
rgpunks = (IUnknown *((*)[])) TraceReAlloc( m_rgpProviders, sizeof( IUnknown * ) * ( m_idxNextProvider + 1 ), HEAP_ZERO_MEMORY );
if ( rgpunks == NULL )
{
hr = THR( E_OUTOFMEMORY );
STATUS_REPORT( TASKID_Major_Find_Devices, TASKID_Minor_HrAddToProvidersArray, IDS_ERROR_OUTOFMEMORY, hr );
goto Cleanup;
} // if:
m_rgpProviders = rgpunks;
(*m_rgpProviders)[ m_idxNextProvider++ ] = punkIn;
punkIn->AddRef();
m_cTotalResources += nAmountToAdd;
Cleanup:
if ( pieccmr != NULL )
{
pieccmr->Release();
}
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrAddToProvidersArray
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrLoadUnknownQuorumProvider
//
// Description:
// Since we cannot resonable expect every 3rd party quorum vender
// to write a "provider" for their device for this setup wizard
// we need a proxy to represent that quorum device. The "unknown"
// is just such a proxy.
//
// Arguments:
// None.
//
// Return Value:
// S_OK
// Success
//
// E_OUTOFMEMORY
// Couldn't allocate memeory.
//
// Remarks:
// If this node is clustered and we do not find a device that is
// already the quorum then we need to make the "unknown" quorum
// the quorum device.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrLoadUnknownQuorumProvider( void )
{
TraceFunc( "" );
HRESULT hr = S_OK;
IUnknown * punk = NULL;
BOOL fNeedQuorum = FALSE;
BOOL fQuormIsOwnedByThisNode = FALSE;
BSTR bstrQuorumResourceName = NULL;
hr = STHR( HrIsClusterServiceRunning() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_OK )
{
hr = THR( HrIsThereAQuorumDevice() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_FALSE )
{
fNeedQuorum = TRUE;
} // if:
hr = THR( HrGetQuorumResourceName( &bstrQuorumResourceName, &fQuormIsOwnedByThisNode ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
} // if:
//
// If there was not already a quorum, and if this node owns the quorum resource
// then we need the unknown quorum proxy to be set as default to the quorum device.
//
// If we are not running on a cluster node then both are false and the unknown
// quorum proxy will not be set by default to be the quorum.
//
hr = THR( CEnumUnknownQuorum::S_HrCreateInstance( bstrQuorumResourceName, ( fNeedQuorum && fQuormIsOwnedByThisNode ), &punk ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
hr = THR( HrInitializeAndSaveProvider( punk ) );
Cleanup:
if ( punk != NULL )
{
punk->Release();
} // if:
TraceSysFreeString( bstrQuorumResourceName );
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrLoadUnknownQuorumProvider
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrIsClusterServiceRunning
//
// Description:
// Is this node a member of a cluster and is the serice running?
//
// Arguments:
// None.
//
// Return Value:
// S_OK
// The node is clustered and the serivce is running.
//
// S_FALSE
// The node is not clustered, or the serivce is not running.
//
// Win32 Error
// something failed.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrIsClusterServiceRunning( void )
{
TraceFunc( "" );
HRESULT hr = S_FALSE;
DWORD sc;
DWORD dwClusterState;
sc = TW32( GetNodeClusterState( NULL, &dwClusterState ) );
if ( sc != ERROR_SUCCESS )
{
hr = THR( HRESULT_FROM_WIN32( sc ) );
goto Cleanup;
} // if : GetClusterState() failed
if ( dwClusterState == ClusterStateRunning )
{
hr = S_OK;
} // if:
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgMana9gedResources::HrIsClusterServiceRunning
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrIsThereAQuorumDevice
//
// Description:
// Is there a quorum device in an enum somewhere?
//
// Arguments:
// None.
//
// Return Value:
// S_OK
// There is a quorum device.
//
// S_FALSE
// There is not a quorum device.
//
// Win32 Error
// something failed.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrIsThereAQuorumDevice( void )
{
TraceFunc( "" );
Assert( m_idxCurrentProvider == 0 );
HRESULT hr = S_OK;
IClusCfgManagedResourceInfo * piccmri = NULL;
DWORD cFetched;
bool fFoundQuorum = false;
for ( ; ; )
{
hr = STHR( Next( 1, &piccmri, &cFetched ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( ( hr == S_FALSE ) && ( cFetched == 0 ) )
{
hr = S_OK;
break;
} // if:
hr = THR( piccmri->IsQuorumDevice() );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_OK )
{
fFoundQuorum = true;
break;
} // if:
piccmri->Release();
piccmri = NULL;
} // for:
hr = THR( Reset() );
Cleanup:
if ( piccmri != NULL )
{
piccmri->Release();
} // if:
if ( SUCCEEDED( hr ) )
{
if ( fFoundQuorum )
{
hr = S_OK;
} // if:
else
{
hr = S_FALSE;
} // else:
} // if:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrIsThereAQuorumDevice
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrInitializeAndSaveProvider
//
// Description:
// Initialize the passed in enum and add it to the array of enums.
//
// Arguments:
//
// Return Value:
// S_OK
// Success.
//
// S_FALSE
// The provider was not saved.
//
// Win32 Error
// something failed.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrInitializeAndSaveProvider( IUnknown * punkIn )
{
TraceFunc( "" );
HRESULT hr = S_OK;
//
// KB: 13-JUN-2000 GalenB
//
// If S_FALSE is returned don't add this to the array. S_FALSE
// indicates that this enumerator should not be run now.
//
hr = STHR( HrSetInitialize( punkIn, m_picccCallback, m_lcid ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
if ( hr == S_FALSE )
{
goto Cleanup;
} // if:
hr = HrSetWbemServices( punkIn, m_pIWbemServices );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
hr = THR( HrAddToProvidersArray( punkIn ) );
Cleanup:
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrInitializeAndSaveProvider
/////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumClusCfgManagedResources:HrGetQuorumResourceName
//
// Description:
// Get the quorum resource name and return whether or not this node
// owns the quorum.
//
// Arguments:
//
// Return Value:
// S_OK
// Success.
//
// Win32 Error
// something failed.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumClusCfgManagedResources::HrGetQuorumResourceName(
BSTR * pbstrQuorumResourceNameOut
, BOOL * pfQuormIsOwnedByThisNodeOut
)
{
TraceFunc( "" );
Assert( pbstrQuorumResourceNameOut != NULL );
Assert( pfQuormIsOwnedByThisNodeOut != NULL );
HRESULT hr = S_OK;
DWORD sc;
HCLUSTER hCluster = NULL;
BSTR bstrQuorumResourceName = NULL;
BSTR bstrNodeName = NULL;
HRESOURCE hQuorumResource = NULL;
hCluster = OpenCluster( NULL );
if ( hCluster == NULL )
{
sc = TW32( GetLastError() );
hr = HRESULT_FROM_WIN32( sc );
goto Cleanup;
} // if:
hr = THR( HrGetClusterQuorumResource( hCluster, &bstrQuorumResourceName, NULL, NULL ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
hQuorumResource = OpenClusterResource( hCluster, bstrQuorumResourceName );
if ( hQuorumResource == NULL )
{
sc = TW32( GetLastError() );
hr = HRESULT_FROM_WIN32( sc );
goto Cleanup;
} // if:
hr = THR( HrGetClusterResourceState( hQuorumResource, &bstrNodeName, NULL, NULL ) );
if ( FAILED( hr ) )
{
goto Cleanup;
} // if:
//
// Give ownership away.
//
Assert( bstrQuorumResourceName != NULL );
*pbstrQuorumResourceNameOut = bstrQuorumResourceName;
bstrQuorumResourceName = NULL;
*pfQuormIsOwnedByThisNodeOut = ( _wcsicmp( m_bstrNodeName, bstrNodeName ) == 0 );
Cleanup:
if ( hQuorumResource != NULL )
{
CloseClusterResource( hQuorumResource );
} // if:
if ( hCluster != NULL )
{
CloseCluster( hCluster );
} // if:
TraceSysFreeString( bstrQuorumResourceName );
TraceSysFreeString( bstrNodeName );
HRETURN( hr );
} //*** CEnumClusCfgManagedResources::HrGetQuorumResourceName
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