windows-nt/Source/XPSP1/NT/inetsrv/query/txtfilt/txtifilt.cxx

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//+-------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1994
//
// File: txtifilt.cxx
//
// Contents: Text filter 'class factory'.
//
// History: 23-Feb-1994 KyleP Created
//
// Notes: Machine generated. Hand modified.
//
//--------------------------------------------------------------------------
#include <pch.cxx>
#pragma hdrstop
#include <tfilt.hxx>
#include <nullfilt.hxx>
#include <params.hxx>
#include <ciregkey.hxx>
#include <regacc.hxx>
extern long gulcInstances;
extern "C" GUID TYPID_CTextIFilter = {
0xd5355200,
0x77e3,
0x101a,
{ 0xb5, 0x52, 0x08, 0x00, 0x2b, 0x33, 0xb0, 0xe6 }
};
ULONG g_cbMaxTextFilter = CI_MAX_TEXT_FILTER_BYTES_DEFAULT;
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterBase::CTextIFilterBase
//
// Synopsis: Base constructor
//
// Effects: Manages global refcount
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
CTextIFilterBase::CTextIFilterBase()
: _cRefs(1)
{
InterlockedIncrement( &gulcInstances );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterBase::~CTextIFilterBase
//
// Synopsis: Base destructor
//
// Effects: Manages global refcount
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
CTextIFilterBase::~CTextIFilterBase()
{
InterlockedDecrement( &gulcInstances );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterBase::QueryInterface
//
// Synopsis: Rebind to other interface
//
// Arguments: [riid] -- IID of new interface
// [ppvObject] -- New interface * returned here
//
// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
SCODE STDMETHODCALLTYPE CTextIFilterBase::QueryInterface( REFIID riid,
void ** ppvObject)
{
SCODE sc = S_OK;
if ( 0 == ppvObject )
return E_INVALIDARG;
*ppvObject = 0;
if ( IID_IFilter == riid )
*ppvObject = (IUnknown *)(IFilter *)this;
else if ( IID_IPersist == riid )
*ppvObject = (IUnknown *)(IPersist *)(IPersistFile *)this;
else if ( IID_IPersistFile == riid )
*ppvObject = (IUnknown *)(IPersistFile *)this;
else if ( IID_IUnknown == riid )
*ppvObject = (IUnknown *)(IPersist *)(IPersistFile *)this;
else
sc = E_NOINTERFACE;
if ( SUCCEEDED( sc ) )
AddRef();
return sc;
} //QueryInterface
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterBase::AddRef
//
// Synopsis: Increments refcount
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
ULONG STDMETHODCALLTYPE CTextIFilterBase::AddRef()
{
return InterlockedIncrement( &_cRefs );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterBase::Release
//
// Synopsis: Decrement refcount. Delete if necessary.
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
ULONG STDMETHODCALLTYPE CTextIFilterBase::Release()
{
unsigned long uTmp = InterlockedDecrement( &_cRefs );
if ( 0 == uTmp )
delete this;
return(uTmp);
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::CTextIFilterCF
//
// Synopsis: Text IFilter class factory constructor
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
CTextIFilterCF::CTextIFilterCF()
: _cRefs( 1 )
{
InterlockedIncrement( &gulcInstances );
CRegAccess reg( RTL_REGISTRY_CONTROL, wcsRegAdmin );
g_cbMaxTextFilter= reg.Read( wcsMaxTextFilterBytes,
CI_MAX_TEXT_FILTER_BYTES_DEFAULT,
CI_MAX_TEXT_FILTER_BYTES_MIN,
CI_MAX_TEXT_FILTER_BYTES_MAX );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::~CTextIFilterCF
//
// Synopsis: Text IFilter class factory constructor
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
CTextIFilterCF::~CTextIFilterCF()
{
InterlockedDecrement( &gulcInstances );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::QueryInterface
//
// Synopsis: Rebind to other interface
//
// Arguments: [riid] -- IID of new interface
// [ppvObject] -- New interface * returned here
//
// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
SCODE STDMETHODCALLTYPE CTextIFilterCF::QueryInterface( REFIID riid,
void ** ppvObject )
{
SCODE sc = S_OK;
if ( 0 == ppvObject )
return E_INVALIDARG;
*ppvObject = 0;
if ( IID_IClassFactory == riid )
*ppvObject = (IUnknown *)(IClassFactory *)this;
else if ( IID_IUnknown == riid )
*ppvObject = (IUnknown *)(IClassFactory *)this;
else if ( IID_ITypeLib == riid )
sc = E_NOTIMPL;
else
sc = E_NOINTERFACE;
if ( SUCCEEDED( sc ) )
AddRef();
return sc;
} //QueryInterface
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::AddRef
//
// Synopsis: Increments refcount
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
ULONG STDMETHODCALLTYPE CTextIFilterCF::AddRef()
{
return InterlockedIncrement( &_cRefs );
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::Release
//
// Synopsis: Decrement refcount. Delete if necessary.
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
ULONG STDMETHODCALLTYPE CTextIFilterCF::Release()
{
unsigned long uTmp = InterlockedDecrement( &_cRefs );
if ( 0 == uTmp )
delete this;
return(uTmp);
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::CreateInstance
//
// Synopsis: Creates new TextIFilter object
//
// Arguments: [pUnkOuter] -- 'Outer' IUnknown
// [riid] -- Interface to bind
// [ppvObject] -- Interface returned here
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
SCODE STDMETHODCALLTYPE CTextIFilterCF::CreateInstance( IUnknown * pUnkOuter,
REFIID riid,
void * * ppvObject )
{
CTextIFilter * pIUnk = 0;
SCODE sc = S_OK;
TRY
{
pIUnk = new CTextIFilter();
sc = pIUnk->QueryInterface( riid , ppvObject );
pIUnk->Release(); // Release extra refcount from QueryInterface
}
CATCH(CException, e)
{
Win4Assert( 0 == pIUnk );
switch( e.GetErrorCode() )
{
case E_OUTOFMEMORY:
sc = (E_OUTOFMEMORY);
break;
default:
sc = (E_UNEXPECTED);
}
}
END_CATCH;
return (sc);
}
//+-------------------------------------------------------------------------
//
// Method: CTextIFilterCF::LockServer
//
// Synopsis: Force class factory to remain loaded
//
// Arguments: [fLock] -- TRUE if locking, FALSE if unlocking
//
// Returns: S_OK
//
// History: 23-Feb-1994 KyleP Created
//
//--------------------------------------------------------------------------
SCODE STDMETHODCALLTYPE CTextIFilterCF::LockServer(BOOL fLock)
{
if(fLock)
InterlockedIncrement( &gulcInstances );
else
InterlockedDecrement( &gulcInstances );
return(S_OK);
}