Leaked source code of windows server 2003
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9.3 KiB

//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2001 Microsoft Corporation
//
// Module Name:
// EnumCookies.cpp
//
// Description:
// CEnumCookies implementation.
//
// Maintained By:
// David Potter (DavidP) 14-JUN-2001
// Geoffrey Pease (GPease) 08-MAY-2000
//
//////////////////////////////////////////////////////////////////////////////
#include "Pch.h"
#include "EnumCookies.h"
#include "ObjectManager.h"
DEFINE_THISCLASS("CEnumCookies")
// ************************************************************************
//
// Constructor / Destructor
//
// ************************************************************************
//////////////////////////////////////////////////////////////////////////////
//
// HRESULT
// CEnumCookies::S_HrCreateInstance(
// IUnknown ** ppunkOut
// )
//
//////////////////////////////////////////////////////////////////////////////
HRESULT
CEnumCookies::S_HrCreateInstance(
IUnknown ** ppunkOut
)
{
TraceFunc( "" );
HRESULT hr = S_OK;
CEnumCookies * pec = NULL;
Assert( ppunkOut != NULL );
if ( ppunkOut == NULL )
{
hr = THR( E_POINTER );
goto Cleanup;
}
pec = new CEnumCookies;
if ( pec == NULL )
{
hr = THR( E_OUTOFMEMORY );
goto Cleanup;
}
hr = THR( pec->HrInit() );
if ( FAILED( hr ) )
{
goto Cleanup;
}
hr = THR( pec->TypeSafeQI( IUnknown, ppunkOut ) );
if ( FAILED( hr ) )
{
goto Cleanup;
}
Cleanup:
if ( pec != NULL )
{
pec->Release();
}
HRETURN( hr );
} //*** CEnumCookies::S_HrCreateInstance
//////////////////////////////////////////////////////////////////////////////
//
// CEnumCookies::CEnumCookies
//
//////////////////////////////////////////////////////////////////////////////
CEnumCookies::CEnumCookies( void )
: m_cRef( 1 )
{
TraceFunc( "" );
InterlockedIncrement( &g_cObjects );
TraceFuncExit();
} //*** CEnumCookies::CEnumCookies
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::HrInit
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::HrInit( void )
{
TraceFunc( "" );
HRESULT hr = S_OK;
// IUnknown stuff
Assert( m_cRef == 1 );
// IEnumCookies
Assert( m_cIter == 0 );
Assert( m_pList == NULL );
Assert( m_cCookies == 0 );
HRETURN( hr );
} //*** CEnumCookies::HrInit
//////////////////////////////////////////////////////////////////////////////
//
// CEnumCookies::~CEnumCookies
//
//////////////////////////////////////////////////////////////////////////////
CEnumCookies::~CEnumCookies( void )
{
TraceFunc( "" );
if ( m_pList != NULL )
{
TraceFree( m_pList );
} // if: m_pList
InterlockedDecrement( &g_cObjects );
TraceFuncExit();
} //*** CEnumCookies::~CEnumCookies
// ************************************************************************
//
// IUnknown
//
// ************************************************************************
//////////////////////////////////////////////////////////////////////////////
//++
//
// CEnumCookies::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
CEnumCookies::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< IEnumCookies * >( this );
} // if: IUnknown
else if ( IsEqualIID( riidIn, IID_IEnumCookies ) )
{
*ppvOut = TraceInterface( __THISCLASS__, IEnumCookies, this, 0 );
} // else if: IEnumCookies
else
{
*ppvOut = NULL;
hr = E_NOINTERFACE;
} // else
//
// Add a reference to the interface if successful.
//
if ( SUCCEEDED( hr ) )
{
((IUnknown *) *ppvOut)->AddRef();
} // if: success
Cleanup:
QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
} //*** CEnumCookies::QueryInterface
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CEnumCookies::AddRef
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG )
CEnumCookies::AddRef( void )
{
TraceFunc( "[IUnknown]" );
InterlockedIncrement( &m_cRef );
CRETURN( m_cRef );
} //*** CEnumCookies::AddRef
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CEnumCookies::Release
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_( ULONG )
CEnumCookies::Release( void )
{
TraceFunc( "[IUnknown]" );
LONG cRef;
cRef = InterlockedDecrement( &m_cRef );
if ( cRef == 0 )
{
TraceDo( delete this );
}
CRETURN( cRef );
} //*** CEnumCookies::Release
//****************************************************************************
//
// IEnumCookies
//
//****************************************************************************
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Next(
// ULONG celt,
// IClusCfgNetworkInfo * rgNetworksOut[],
// ULONG * pceltFetchedOut
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Next(
ULONG celt,
OBJECTCOOKIE rgcookieOut[],
ULONG * pceltFetchedOut
)
{
TraceFunc( "[IEnumCookies]" );
HRESULT hr = S_OK;
ULONG cIter = 0;
//
// Check parameters
//
if ( rgcookieOut == NULL )
goto InvalidPointer;
//
// Loop and copy the cookies.
//
while ( m_cIter < m_cCookies && cIter < celt )
{
rgcookieOut[ cIter++ ] = m_pList[ m_cIter++ ];
} // for each remaining cookie, up to requested count (at most).
Assert( hr == S_OK );
if ( cIter != celt )
{
hr = S_FALSE;
}
if ( pceltFetchedOut != NULL )
{
*pceltFetchedOut = cIter;
}
Cleanup:
HRETURN( hr );
InvalidPointer:
hr = THR( E_POINTER );
goto Cleanup;
} //*** CEnumCookies::Next
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Skip(
// ULONG celt
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Skip(
ULONG celt
)
{
TraceFunc( "[IEnumCookies]" );
HRESULT hr = S_OK;
m_cIter += celt;
if ( m_cIter >= m_cAlloced )
{
m_cIter = m_cAlloced;
hr = S_FALSE;
}
HRETURN( hr );
} //*** CEnumCookies::Skip
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Reset( void )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Reset( void )
{
TraceFunc( "[IEnumCookies]" );
HRESULT hr = S_OK;
m_cIter = 0;
HRETURN( hr );
} //*** CEnumCookies::Reset
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Clone(
// IEnumCookies ** ppenumOut
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Clone(
IEnumCookies ** ppenumOut
)
{
TraceFunc( "[IEnumCookies]" );
//
// KB: not going to implement this method.
//
HRESULT hr = THR( E_NOTIMPL );
HRETURN( hr );
} //*** CEnumCookies::Clone
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Count(
// DWORD * pnCountOut
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Count(
DWORD * pnCountOut
)
{
TraceFunc( "[IEnumCookies]" );
HRESULT hr = S_OK;
if ( pnCountOut == NULL )
{
hr = THR( E_POINTER );
goto Cleanup;
}
*pnCountOut = m_cCookies;
Cleanup:
HRETURN( hr );
} //*** CEnumCookies::Count