226 lines
3.6 KiB
C++
226 lines
3.6 KiB
C++
/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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sink.cxx
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Abstract:
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Implements the BASE_ADMIN_SINK object.
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Author:
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Keith Moore (keithmo) 05-Feb-1997
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Revision History:
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--*/
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#include "precomp.hxx"
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#pragma hdrstop
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//
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// Private constants.
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//
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//
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// Private types.
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//
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//
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// Private globals.
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//
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//
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// Private prototypes.
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//
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//
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// Public functions.
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//
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BASE_ADMIN_SINK::BASE_ADMIN_SINK()
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{
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//
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// Put everything into a known state.
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//
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m_ReferenceCount = 0;
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m_SinkCookie = 0;
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m_ConnectionPoint = NULL;
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} // BASE_ADMIN_SINK::BASE_ADMIN_SINK
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BASE_ADMIN_SINK::~BASE_ADMIN_SINK()
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{
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//
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// Unadvise if necessary.
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//
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Unadvise();
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//
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// Release the connection point.
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//
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RELEASE_INTERFACE( m_ConnectionPoint );
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} // BASE_ADMIN_SINK::~BASE_ADMIN_SINK
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HRESULT
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BASE_ADMIN_SINK::Initialize(
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IN IUnknown * Object
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)
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{
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HRESULT result;
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IConnectionPointContainer * container;
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//
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// Get the connection point container from the given interface.
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//
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result = Object->QueryInterface(
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IID_IConnectionPointContainer,
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(VOID **)&container
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);
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if( SUCCEEDED(result) ) {
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//
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// Find the necessary connection point.
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//
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result = container->FindConnectionPoint(
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IID_IMSAdminBaseSink,
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&m_ConnectionPoint
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);
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if( SUCCEEDED(result) ) {
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//
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// Setup the advise association.
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//
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result = m_ConnectionPoint->Advise(
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(IUnknown *)this,
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&m_SinkCookie
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);
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}
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container->Release();
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}
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return result;
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} // BASE_ADMIN_SINK::Initialize
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HRESULT
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BASE_ADMIN_SINK::Unadvise(
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VOID
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)
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{
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HRESULT result = NO_ERROR;
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DWORD tmpCookie;
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//
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// Unadvise if necessary.
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//
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tmpCookie = (DWORD)InterlockedExchange(
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(LPLONG)&m_SinkCookie,
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0
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);
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if( tmpCookie != 0 ) {
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result = m_ConnectionPoint->Unadvise( tmpCookie );
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}
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return result;
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} // BASE_ADMIN_SINK::Unadvise
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HRESULT
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STDMETHODCALLTYPE
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BASE_ADMIN_SINK::QueryInterface(
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IN REFIID InterfaceId,
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OUT VOID ** Object
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)
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{
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//
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// This class supports IUnknown and IADMCOMSINK. If it's one of these,
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// just return "this". Otherwise, fail it.
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//
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if( InterfaceId == IID_IUnknown ||
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InterfaceId == IID_IMSAdminBaseSink ) {
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*Object = (VOID *)this;
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AddRef();
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return NO_ERROR;
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}
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return E_NOINTERFACE;
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} // BASE_ADMIN_SINK::QueryInterface
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ULONG
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STDMETHODCALLTYPE
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BASE_ADMIN_SINK::AddRef()
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{
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ULONG newCount;
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//
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// Increment our ref count and return the updated value.
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//
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newCount = (ULONG)InterlockedIncrement( &m_ReferenceCount );
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return newCount;
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} // BASE_ADMIN_SINK::AddRef
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ULONG
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STDMETHODCALLTYPE
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BASE_ADMIN_SINK::Release()
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{
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ULONG newCount;
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//
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// Decrement our ref count. It it becomes zero, delete the current
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// object. In any case, return the updated value.
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//
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newCount = (ULONG)InterlockedDecrement( &m_ReferenceCount );
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if( newCount == 0 ) {
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delete this;
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}
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return newCount;
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} // BASE_ADMIN_SINK::Release
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//
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// Private functions.
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//
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