196 lines
3.1 KiB
C++
196 lines
3.1 KiB
C++
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//
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// Copyright 1997 - Microsoft
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//
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//
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// CFACTORY.CPP - Class Factory Object
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//
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#include "pch.h"
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DEFINE_MODULE("IMADMUI")
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DEFINE_THISCLASS("CFactory")
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#define THISCLASS CFactory
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// ************************************************************************
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//
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// Constructor / Destructor
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//
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// ************************************************************************
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//
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// Constructor
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//
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THISCLASS::THISCLASS( LPCREATEINST pfn )
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{
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TraceClsFunc( "CFactory()\n" );
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_pfnCreateInstance = pfn;
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InterlockIncrement( g_cObjects );
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TraceFuncExit();
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}
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STDMETHODIMP
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THISCLASS::Init( )
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{
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TraceClsFunc( "Init()\n");
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//
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// IUnknown stuff
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//
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Assert( _cRef == 0 );
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// Build QI Table
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BEGIN_QITABLE_IMP( CFactory, IClassFactory );
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QITABLE_IMP( IClassFactory );
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END_QITABLE_IMP( CFactory );
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// Add one count
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AddRef( );
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//
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// Private Members
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//
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HRETURN(S_OK);
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};
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//
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// Destructor
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//
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THISCLASS::~THISCLASS( )
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{
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TraceClsFunc( "~CFactory()\n" );
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InterlockDecrement( g_cObjects );
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TraceFuncExit();
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};
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// ************************************************************************
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//
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// IUnknown
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//
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// ************************************************************************
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//
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// QueryInterface()
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//
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STDMETHODIMP
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THISCLASS::QueryInterface(
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REFIID riid,
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LPVOID *ppv )
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{
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TraceClsFunc( "" );
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HRESULT hr = ::QueryInterface( this, _QITable, riid, ppv );
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QIRETURN( hr, riid );
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}
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//
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// AddRef()
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//
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STDMETHODIMP_(ULONG)
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THISCLASS::AddRef( void )
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{
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TraceClsFunc( "[IUnknown] AddRef( )\n" );
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InterlockIncrement( _cRef );
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RETURN(_cRef);
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}
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//
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// Release()
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//
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STDMETHODIMP_(ULONG)
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THISCLASS::Release( void )
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{
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TraceClsFunc( "[IUnknown] Release( )\n" );
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InterlockDecrement( _cRef );
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if ( _cRef )
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RETURN(_cRef);
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TraceDo( delete this );
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RETURN(0);
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}
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// ************************************************************************
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//
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// IClassFactory
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//
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// ************************************************************************
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//
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// CreateInstance()
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//
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STDMETHODIMP
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THISCLASS::
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CreateInstance(
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IUnknown *pUnkOuter,
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REFIID riid,
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void **ppv )
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{
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TraceClsFunc( "[IClassFactory] CreateInstance()\n" );
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if ( !ppv )
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RRETURN(E_POINTER);
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*ppv = NULL;
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HRESULT hr = E_NOINTERFACE;
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IUnknown * pUnk = NULL;
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if ( NULL != pUnkOuter )
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{
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hr = THR(CLASS_E_NOAGGREGATION);
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goto Cleanup;
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}
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Assert( _pfnCreateInstance != NULL );
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TraceMsgDo( pUnk = (IUnknown *) _pfnCreateInstance( ), "0x%08x" );
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if ( !pUnk )
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{
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hr = THR(E_OUTOFMEMORY);
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goto Cleanup;
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}
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TraceMsgDo( hr = pUnk->QueryInterface( riid, ppv ), "0x%08x" );
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Cleanup:
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if ( !!pUnk )
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{
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ULONG cRef;
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TraceMsgDo( cRef = pUnk->Release( ), "%u" );
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}
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HRETURN(hr);
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}
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//
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// LockServer()
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//
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STDMETHODIMP
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THISCLASS::
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LockServer( BOOL fLock )
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{
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TraceClsFunc( "[IClassFactory] LockServer()\n");
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if ( fLock )
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{
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InterlockIncrement( g_cLock );
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}
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else
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{
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InterlockDecrement( g_cLock );
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}
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HRETURN(S_OK);
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}
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