Leaked source code of windows server 2003
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131 lines
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/****************************************************************************/
// factory.cpp
//
// TS Session Directory class factory code.
//
// Copyright (C) 2000 Microsoft Corporation
/****************************************************************************/
#include <windows.h>
#include <ole2.h>
#include <objbase.h>
#include <comutil.h>
#include <comdef.h>
#include <adoid.h>
#include <adoint.h>
#include "tssdjet.h"
#include "factory.h"
#include "trace.h"
extern long g_lObjects;
extern long g_lLocks;
/****************************************************************************/
// CClassFactory::QueryInterface
//
// Standard COM IUnknown interface function.
// Handles interface queries for the class factory only.
/****************************************************************************/
STDMETHODIMP CClassFactory::QueryInterface(REFIID riid, void **ppv)
{
if (riid == IID_IUnknown) {
*ppv = (LPVOID)(IUnknown *)this;
}
else if(riid == IID_IClassFactory) {
*ppv = (LPVOID)(IClassFactory *)this;
}
else {
TRC2((TB,"ClassFactory: Unknown interface"));
return E_NOINTERFACE;
}
((IUnknown *)*ppv)->AddRef();
return S_OK;
}
/****************************************************************************/
// CClassFactory::AddRef
//
// Standard COM IUnknown function.
/****************************************************************************/
STDMETHODIMP_(ULONG) CClassFactory::AddRef()
{
return InterlockedIncrement(&m_RefCount);
}
/****************************************************************************/
// CClassFactory::Release
//
// Standard COM IUnknown function.
/****************************************************************************/
STDMETHODIMP_(ULONG) CClassFactory::Release()
{
long Refs = InterlockedDecrement(&m_RefCount);
if (Refs == 0)
delete this;
return Refs;
}
/****************************************************************************/
// CClassFactory::CreateInstance
//
// IClassFactory creator function.
/****************************************************************************/
STDMETHODIMP CClassFactory::CreateInstance(
IN IUnknown *pUnknownOuter,
IN REFIID iid,
OUT LPVOID *ppv)
{
HRESULT hr;
CTSSessionDirectory *pTSSDI = NULL;
*ppv = NULL;
TRC2((TB,"ClassFactory::CreateInstance"));
// We do not support aggregation
if (pUnknownOuter != NULL)
return CLASS_E_NOAGGREGATION;
// Create the provider object
pTSSDI = new CTSSessionDirectory;
if (pTSSDI != NULL) {
// Retrieve the requested interface.
hr = pTSSDI->QueryInterface(iid, ppv);
if (!FAILED(hr)) {
return S_OK;
}
else {
delete pTSSDI;
return hr;
}
}
else {
return E_OUTOFMEMORY;
}
}
/****************************************************************************/
// CClassFactory::LockServer
//
// IClassFactory lock function.
/****************************************************************************/
STDMETHODIMP CClassFactory::LockServer(IN BOOL bLock)
{
if (bLock)
InterlockedIncrement(&g_lLocks);
else
InterlockedDecrement(&g_lLocks);
return S_OK;
}