Source code of Windows XP (NT5)
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000 Microsoft Corporation
//
// Module Name:
// EnumCookies.cpp
//
// Description:
// CEnumCookies implementation.
//
// Maintained By:
// 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( "" );
Assert( ppunkOut != NULL );
HRESULT hr;
CEnumCookies * pemn = new CEnumCookies;
if ( pemn != NULL )
{
hr = THR( pemn->Init( ) );
if ( SUCCEEDED( hr ) )
{
hr = THR( pemn->TypeSafeQI( IUnknown, ppunkOut ) );
}
pemn->Release( );
}
else
{
hr = E_OUTOFMEMORY;
}
HRETURN( hr );
} // S_HrCreateInstance( )
//////////////////////////////////////////////////////////////////////////////
//
// CEnumCookies::CEnumCookies( void )
//
//////////////////////////////////////////////////////////////////////////////
CEnumCookies::CEnumCookies( void )
{
TraceFunc( "" );
InterlockedIncrement( &g_cObjects );
TraceFuncExit();
} // CEnumCookies( )
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Init( void )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Init( void )
{
TraceFunc( "" );
HRESULT hr = S_OK;
// IUnknown stuff
Assert( m_cRef == 0 );
AddRef( ); // Add one count
// IEnumCookies
Assert( m_cIter == 0 );
Assert( m_pList == NULL );
Assert( m_cCookies == 0 );
HRETURN( hr );
} // Init( )
//////////////////////////////////////////////////////////////////////////////
//
// CEnumCookies::~CEnumCookies( )
//
//////////////////////////////////////////////////////////////////////////////
CEnumCookies::~CEnumCookies( )
{
TraceFunc( "" );
if ( m_pList != NULL )
{
TraceFree( m_pList );
} // if: m_pList
InterlockedDecrement( &g_cObjects );
TraceFuncExit();
} // ~CEnumCookies( )
// ************************************************************************
//
// IUnknown
//
// ************************************************************************
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::QueryInterface(
// REFIID riid,
// LPVOID *ppv
// )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::QueryInterface(
REFIID riid,
LPVOID *ppv
)
{
TraceQIFunc( riid, ppv );
HRESULT hr = E_NOINTERFACE;
if ( IsEqualIID( riid, IID_IUnknown ) )
{
*ppv = static_cast< IEnumCookies * >( this );
hr = S_OK;
} // if: IUnknown
else if ( IsEqualIID( riid, IID_IEnumCookies ) )
{
*ppv = TraceInterface( __THISCLASS__, IEnumCookies, this, 0 );
hr = S_OK;
} // else if: IEnumCookies
if ( SUCCEEDED( hr ) )
{
((IUnknown*) *ppv)->AddRef( );
} // if: success
QIRETURN_IGNORESTDMARSHALLING( hr, riid );
} // QueryInterface( )
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CEnumCookies::AddRef( void )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_(ULONG)
CEnumCookies::AddRef( void )
{
TraceFunc( "[IUnknown]" );
InterlockedIncrement( &m_cRef );
RETURN( m_cRef );
} // AddRef( )
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP_(ULONG)
// CEnumCookies::Release( void )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP_(ULONG)
CEnumCookies::Release( void )
{
TraceFunc( "[IUnknown]" );
InterlockedDecrement( &m_cRef );
if ( m_cRef )
RETURN( m_cRef );
TraceDo( delete this );
RETURN(0);
} // 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;
//
// Check parameters
//
if ( rgcookieOut == NULL )
goto InvalidPointer;
//
// Loop and coping/addreffing the pccni.
//
for( cIter = 0 ; m_cIter < m_cAlloced && cIter < celt ; cIter ++ )
{
rgcookieOut[ cIter ] = m_pList[ m_cIter ];
// Increment the class iter.
m_cIter++;
} // for: m_cIter && cIter
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;
} // 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 );
} // Skip( )
//////////////////////////////////////////////////////////////////////////////
//
// STDMETHODIMP
// CEnumCookies::Reset( void )
//
//////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
CEnumCookies::Reset( void )
{
TraceFunc( "[IEnumCookies]" );
HRESULT hr = S_OK;
m_cIter = 0;
HRETURN( hr );
} // 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 );
} // 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 );
}// Count( )