Leaked source code of windows server 2003
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2001 Microsoft Corporation
//
// Module Name:
// GroupHandle.cpp
//
// Description:
// Object Manager implementation.
//
// Maintained By:
// Geoffrey Pease (GPease) 22-NOV-1999
//
//////////////////////////////////////////////////////////////////////////////
#include "Pch.h"
#include "GroupHandle.h"
DEFINE_THISCLASS("CGroupHandle")
// ************************************************************************
//
// Constructor / Destructor
//
// ************************************************************************
//////////////////////////////////////////////////////////////////////////////
//
// HRESULT
// CGroupHandle::S_HrCreateInstance(
// CGroupHandle ** ppunkOut,
// HGROUP hGroupIn
// )
//
//////////////////////////////////////////////////////////////////////////////
HRESULT CGroupHandle::S_HrCreateInstance( CGroupHandle ** ppunkOut, HGROUP hGroupIn ) { TraceFunc( "" );
HRESULT hr = S_OK; CGroupHandle * pgh = NULL;
Assert( ppunkOut != NULL ); if ( ppunkOut == NULL ) { hr = THR( E_POINTER ); goto Cleanup; }
pgh = new CGroupHandle; if ( pgh == NULL ) { hr = THR( E_POINTER ); goto Cleanup; }
hr = THR( pgh->HrInit( hGroupIn ) ); if ( FAILED( hr ) ) { goto Cleanup; }
*ppunkOut = pgh; (*ppunkOut)->AddRef();
Cleanup:
if ( pgh != NULL ) { pgh->Release(); }
HRETURN( hr );
} //*** CGroupHandle::S_HrCreateInstance
//////////////////////////////////////////////////////////////////////////////
//
// CGroupHandle::CGroupHandle
//
//////////////////////////////////////////////////////////////////////////////
CGroupHandle::CGroupHandle( void ) : m_cRef( 1 ) { TraceFunc( "" );
InterlockedIncrement( &g_cObjects );
TraceFuncExit();
} //*** CGroupHandle::CGroupHandle
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CGroupHandle::HrInit(
// HGROUP hGroupIn
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP CGroupHandle::HrInit( HGROUP hGroupIn ) { TraceFunc( "" );
HRESULT hr = S_OK;
// IUnknown stuff
Assert( m_cRef == 1 );
// IPrivateGroupHandle
Assert( m_hGroup == NULL );
m_hGroup = hGroupIn;
HRETURN( hr );
} //*** CGroupHandle::HrInit
//////////////////////////////////////////////////////////////////////////////
//
// CGroupHandle::~CGroupHandle
//
//////////////////////////////////////////////////////////////////////////////
CGroupHandle::~CGroupHandle( void ) { TraceFunc( "" );
if ( m_hGroup != NULL ) { CloseClusterGroup( m_hGroup ); }
InterlockedDecrement( &g_cObjects );
TraceFuncExit();
} //*** CGroupHandle::~CGroupHandle
// ************************************************************************
//
// IUnknown
//
// ************************************************************************
//////////////////////////////////////////////////////////////////////////////
//++
//
// CGroupHandle::QueryInterface
//
// Description:
// Query this object for the passed in interface.
//
// Arguments:
// riidIn
// Id of interface requested.
//
// ppvOut
// 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.
//
// E_POINTER
// ppvOut was NULL.
//
// Remarks:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP CGroupHandle::QueryInterface( REFIID riidIn , LPVOID * ppvOut ) { TraceQIFunc( riidIn, ppvOut );
HRESULT hr = S_OK;
//
// Validate arguments.
//
Assert( ppvOut != NULL ); if ( ppvOut == NULL ) { hr = THR( E_POINTER ); goto Cleanup; }
//
// Handle known interfaces.
//
if ( IsEqualIID( riidIn, IID_IUnknown ) ) { *ppvOut = static_cast< IUnknown * >( this ); } // if: IUnknown
#if 0
else if ( IsEqualIID( riidIn, IID_IGroupHandle ) ) { *ppvOut = TraceInterface( __THISCLASS__, IGroupHandle, this, 0 ); } // else if: IGroupHandle
#endif
else { *ppvOut = NULL; hr = E_NOINTERFACE; }
//
// Add a reference to the interface if successful.
//
if ( SUCCEEDED( hr ) ) { ((IUnknown *) *ppvOut)->AddRef(); } // if: success
Cleanup:
QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
} //*** CGroupHandle::QueryInterface
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CGroupHandle::AddRef
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG ) CGroupHandle::AddRef( void ) { TraceFunc( "[IUnknown]" );
InterlockedIncrement( &m_cRef );
CRETURN( m_cRef );
} //*** CGroupHandle::AddRef
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CGroupHandle::Release
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG ) CGroupHandle::Release( void ) { TraceFunc( "[IUnknown]" );
LONG cRef;
cRef = InterlockedDecrement( &m_cRef );
if ( cRef == 0 ) { TraceDo( delete this ); }
CRETURN( cRef );
} //*** CGroupHandle::Release
//****************************************************************************
//
// IPrivateGroupHandle
//
//****************************************************************************
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CGroupHandle::SetHandle(
// HGROUP hGroupIn
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP CGroupHandle::SetHandle( HGROUP hGroupIn ) { TraceFunc( "[IPrivateGroupHandle]" );
HRESULT hr = S_OK;
m_hGroup = hGroupIn;
HRETURN( hr );
} //*** CGroupHandle::SetHandle
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CGroupHandle::GetHandle(
// HGROUP * phGroupOut
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP CGroupHandle::GetHandle( HGROUP * phGroupOut ) { TraceFunc( "[IPrivateGroupHandle]" );
HRESULT hr = S_OK;
Assert( phGroupOut != NULL );
*phGroupOut = m_hGroup;
HRETURN( hr );
} //*** CGroupHandle::GetHandle
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