566 lines
12 KiB
C++
566 lines
12 KiB
C++
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (c) 1999-2000 Microsoft Corporation
|
|
//
|
|
// Module Name:
|
|
// ConnPointEnum.cpp
|
|
//
|
|
// Description:
|
|
// Connection Point Enumerator implementation.
|
|
//
|
|
// Maintained By:
|
|
// Geoffrey Pease (GPease) 04-AUG-2000
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "pch.h"
|
|
#include "ConnPointEnum.h"
|
|
|
|
DEFINE_THISCLASS("CConnPointEnum")
|
|
|
|
|
|
// ************************************************************************
|
|
//
|
|
// Constructor / Destructor
|
|
//
|
|
// ************************************************************************
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// HRESULT
|
|
// CConnPointEnum::S_HrCreateInstance(
|
|
// IUnknown ** ppunkOut
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CConnPointEnum::S_HrCreateInstance(
|
|
IUnknown ** ppunkOut
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
Assert( ppunkOut != NULL );
|
|
|
|
HRESULT hr = E_OUTOFMEMORY;
|
|
|
|
CConnPointEnum * lpcc = new CConnPointEnum( );
|
|
if ( lpcc != NULL )
|
|
{
|
|
hr = THR( lpcc->Init( ) );
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
hr = THR( lpcc->TypeSafeQI( IUnknown, ppunkOut ) );
|
|
} // if: success
|
|
|
|
lpcc->Release( );
|
|
|
|
} // if: got object
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CConnPointEnum::S_HrCreateInstance( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::CConnPointEnum( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
CConnPointEnum::CConnPointEnum( void )
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
InterlockedIncrement( &g_cObjects );
|
|
|
|
TraceFuncExit();
|
|
|
|
} //*** CConnPointEnum::CConnPointEnum( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::Init( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::Init( void )
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
// IUnknown stuff
|
|
Assert( m_cRef == 0 );
|
|
AddRef( ); // Add one count
|
|
|
|
// IConnectionPoint
|
|
Assert( m_pCPList == NULL );
|
|
|
|
HRETURN(S_OK);
|
|
|
|
} //*** CConnPointEnum::Init( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// CConnPointEnum::~CConnPointEnum( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
CConnPointEnum::~CConnPointEnum( void )
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
while ( m_pCPList != NULL )
|
|
{
|
|
SCPEntry * pentry;
|
|
|
|
pentry = m_pCPList;
|
|
m_pCPList = m_pCPList->pNext;
|
|
|
|
if ( pentry->punk != NULL )
|
|
{
|
|
pentry->punk->Release( );
|
|
}
|
|
|
|
TraceFree( pentry );
|
|
}
|
|
|
|
InterlockedDecrement( &g_cObjects );
|
|
|
|
TraceFuncExit();
|
|
|
|
} //*** CConnPointEnum::~CConnPointEnum( )
|
|
|
|
|
|
// ************************************************************************
|
|
//
|
|
// IUnknown
|
|
//
|
|
// ************************************************************************
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::QueryInterface(
|
|
// REFIID riidIn,
|
|
// LPVOID * ppvOut
|
|
// )
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::QueryInterface(
|
|
REFIID riidIn,
|
|
LPVOID * ppvOut
|
|
)
|
|
{
|
|
TraceQIFunc( riidIn, ppvOut );
|
|
|
|
HRESULT hr = E_NOINTERFACE;
|
|
|
|
if ( IsEqualIID( riidIn, IID_IUnknown ) )
|
|
{
|
|
*ppvOut = static_cast< IEnumConnectionPoints * >( this );
|
|
hr = S_OK;
|
|
} // if: IUnknown
|
|
else if ( IsEqualIID( riidIn, IID_IEnumConnectionPoints ) )
|
|
{
|
|
*ppvOut = TraceInterface( __THISCLASS__, IEnumConnectionPoints, this, 0 );
|
|
hr = S_OK;
|
|
} // else if: IEnumConnectionPoints
|
|
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
((IUnknown*) *ppvOut)->AddRef( );
|
|
} // if: success
|
|
|
|
QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
|
|
|
|
} //*** CConnPointEnum::QueryInterface( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP_( ULONG )
|
|
// CConnPointEnum::AddRef( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP_( ULONG )
|
|
CConnPointEnum::AddRef( void )
|
|
{
|
|
TraceFunc( "[IUnknown]" );
|
|
|
|
InterlockedIncrement( &m_cRef );
|
|
|
|
RETURN( m_cRef );
|
|
|
|
} //*** CConnPointEnum::AddRef( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP_( ULONG )
|
|
// CConnPointEnum::Release( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP_( ULONG )
|
|
CConnPointEnum::Release( void )
|
|
{
|
|
TraceFunc( "[IUnknown]" );
|
|
|
|
InterlockedDecrement( &m_cRef );
|
|
|
|
if ( m_cRef )
|
|
RETURN( m_cRef );
|
|
|
|
TraceDo( delete this );
|
|
|
|
RETURN(0);
|
|
|
|
} //*** CConnPointEnum::Release( )
|
|
|
|
|
|
//****************************************************************************
|
|
//
|
|
// IEnumConnectionPoints
|
|
//
|
|
//****************************************************************************
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::Next(
|
|
// ULONG cConnectionsIn,
|
|
// LPCONNECTIONPOINT * ppCPOut,
|
|
// ULONG * pcFetchedOut
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::Next(
|
|
ULONG cConnectionsIn,
|
|
LPCONNECTIONPOINT * ppCPOut,
|
|
ULONG * pcFetchedOut
|
|
)
|
|
{
|
|
TraceFunc( "[IEnumConnectionPoints]" );
|
|
|
|
HRESULT hr = E_UNEXPECTED;
|
|
ULONG celt;
|
|
|
|
if ( pcFetchedOut != NULL )
|
|
{
|
|
*pcFetchedOut = 0;
|
|
}
|
|
|
|
if ( m_pIter != NULL )
|
|
{
|
|
for( celt = 0; celt < cConnectionsIn; )
|
|
{
|
|
hr = THR( m_pIter->punk->TypeSafeQI( IConnectionPoint, &ppCPOut[ celt ] ) );
|
|
if ( FAILED( hr ) )
|
|
goto Error;
|
|
|
|
ppCPOut[ celt ] = TraceInterface( L"ConnPointEnum!IConnectionPoint", IConnectionPoint, ppCPOut[ celt ], 1 );
|
|
|
|
celt ++;
|
|
m_pIter = m_pIter->pNext;
|
|
if( m_pIter == NULL )
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
celt = 0;
|
|
}
|
|
|
|
if ( celt != cConnectionsIn )
|
|
{
|
|
hr = S_FALSE;
|
|
}
|
|
else
|
|
{
|
|
hr = S_OK;
|
|
}
|
|
|
|
if ( pcFetchedOut != NULL )
|
|
{
|
|
*pcFetchedOut = celt;
|
|
}
|
|
|
|
Cleanup:
|
|
HRETURN( hr );
|
|
|
|
Error:
|
|
while ( celt > 0 )
|
|
{
|
|
celt --;
|
|
ppCPOut[ celt ]->Release( );
|
|
}
|
|
goto Cleanup;
|
|
|
|
} //*** CConnPointEnum::Next( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::Skip(
|
|
// ULONG cConnectionsIn
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::Skip(
|
|
ULONG cConnectionsIn
|
|
)
|
|
{
|
|
TraceFunc( "[IEnumConnectionPoints]" );
|
|
|
|
HRESULT hr = E_UNEXPECTED;
|
|
ULONG celt;
|
|
|
|
if ( m_pIter != NULL )
|
|
{
|
|
for ( celt = 0; celt < cConnectionsIn; celt ++ )
|
|
{
|
|
m_pIter = m_pIter->pNext;
|
|
|
|
if ( m_pIter == NULL )
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( m_pIter == NULL )
|
|
{
|
|
hr = S_FALSE;
|
|
}
|
|
else
|
|
{
|
|
hr = S_OK;
|
|
}
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CConnPointEnum::Skip( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::Reset( void )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::Reset( void )
|
|
{
|
|
TraceFunc( "[IEnumConnectionPoints]" );
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
m_pIter = m_pCPList;
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CConnPointEnum::Reset( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// STDMETHODIMP
|
|
// CConnPointEnum::Clone(
|
|
// IEnumConnectionPoints ** ppEnum
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CConnPointEnum::Clone(
|
|
IEnumConnectionPoints ** ppEnum
|
|
)
|
|
{
|
|
TraceFunc( "[IEnumConnectionPoints]" );
|
|
|
|
HRESULT hr;
|
|
|
|
CConnPointEnum * pcpenum = new CConnPointEnum( );
|
|
if ( pcpenum == NULL )
|
|
goto OutOfMemory;
|
|
|
|
hr = THR( pcpenum->Init( ) );
|
|
if ( FAILED( hr ) )
|
|
goto Cleanup;
|
|
|
|
hr = THR( pcpenum->HrCopy( this ) );
|
|
if ( FAILED( hr ) )
|
|
goto Cleanup;
|
|
|
|
hr = THR( pcpenum->TypeSafeQI( IEnumConnectionPoints, ppEnum ) );
|
|
if ( FAILED( hr ) )
|
|
goto Cleanup;
|
|
|
|
*ppEnum = TraceInterface( L"ConnPointEnum!IEnumConnectionPoints", IEnumConnectionPoints, *ppEnum, 1 );
|
|
|
|
//
|
|
// Release our ref and make sure we don't free it on the way out.
|
|
//
|
|
|
|
pcpenum->Release( );
|
|
pcpenum = NULL;
|
|
|
|
Cleanup:
|
|
if ( pcpenum != NULL )
|
|
{
|
|
delete pcpenum;
|
|
}
|
|
|
|
HRETURN( hr );
|
|
|
|
OutOfMemory:
|
|
hr = E_OUTOFMEMORY;
|
|
goto Cleanup;
|
|
|
|
} //*** CConnPointEnum::Clone( )
|
|
|
|
|
|
//****************************************************************************
|
|
//
|
|
// Private
|
|
//
|
|
//****************************************************************************
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// HRESULT
|
|
// CConnPointEnum::HrCopy(
|
|
// CConnPointEnum * pECPIn
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CConnPointEnum::HrCopy(
|
|
CConnPointEnum * pECPIn
|
|
)
|
|
{
|
|
TraceFunc1( "pECPIn = %p", pECPIn );
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
SCPEntry * pentry;
|
|
|
|
Assert( m_pCPList == NULL );
|
|
|
|
for( pentry = pECPIn->m_pCPList; pentry != NULL; pentry = pentry->pNext )
|
|
{
|
|
SCPEntry * pentryNew = (SCPEntry *) TraceAlloc( 0, sizeof(SCPEntry) );
|
|
if ( pentryNew == NULL )
|
|
goto OutOfMemory;
|
|
|
|
pentryNew->iid = pentry->iid;
|
|
hr = THR( pentry->punk->TypeSafeQI( IUnknown, &pentryNew->punk ) );
|
|
if ( FAILED( hr ) )
|
|
goto Cleanup;
|
|
|
|
pentryNew->punk = TraceInterface( L"ConnPointEnum!IUnknown", IUnknown, pentryNew->punk, 1 );
|
|
|
|
pentryNew->pNext = m_pCPList;
|
|
m_pCPList = pentryNew;
|
|
}
|
|
|
|
m_pIter = m_pCPList;
|
|
|
|
Cleanup:
|
|
HRETURN( hr );
|
|
|
|
OutOfMemory:
|
|
hr = E_OUTOFMEMORY;
|
|
goto Cleanup;
|
|
|
|
} //*** CConnPointEnum::CConnPointEnum( )
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// HRESULT
|
|
// CConnPointEnum::HrAddConnection(
|
|
// REFIID riidIn,
|
|
// IUnknown * punkIn
|
|
// )
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CConnPointEnum::HrAddConnection(
|
|
REFIID riidIn,
|
|
IUnknown * punkIn
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
HRESULT hr = E_UNEXPECTED;
|
|
|
|
SCPEntry * pentry;
|
|
|
|
//
|
|
// Check to see if the interface is already registered.
|
|
//
|
|
|
|
for ( pentry = m_pCPList; pentry != NULL; pentry = pentry->pNext )
|
|
{
|
|
if ( pentry->iid == riidIn )
|
|
goto AlreadyRegistered;
|
|
} // for: pentry
|
|
|
|
//
|
|
// Not registered; add it.
|
|
//
|
|
|
|
pentry = (SCPEntry *) TraceAlloc( 0, sizeof( SCPEntry ) );
|
|
if ( pentry == NULL )
|
|
goto OutOfMemory;
|
|
|
|
hr = THR( punkIn->TypeSafeQI( IUnknown, &pentry->punk ) );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
TraceFree( pentry );
|
|
goto Cleanup;
|
|
}
|
|
|
|
pentry->punk = TraceInterface( L"ConnPointEnum!IUnknown", IUnknown, pentry->punk, 1 );
|
|
|
|
pentry->iid = riidIn;
|
|
pentry->pNext = m_pCPList;
|
|
m_pCPList = pentry;
|
|
m_pIter = m_pCPList;
|
|
|
|
Cleanup:
|
|
HRETURN( hr );
|
|
|
|
AlreadyRegistered:
|
|
hr = THR( CO_E_OBJISREG );
|
|
goto Cleanup;
|
|
|
|
OutOfMemory:
|
|
hr = E_OUTOFMEMORY;
|
|
goto Cleanup;
|
|
|
|
} //*** CConnPointEnum::HrAddConnection( )
|