xmerge/source/activesync/XMergeFactory.cpp

   1 // XMergeFactory.cpp: implementation of the CXMergeFactory class.
   2 //
   3 //////////////////////////////////////////////////////////////////////
   4
   5 #include "stdafx.h"
   6
   7 #include "XMergeFilter.h"
   8 #include "XMergeFactory.h"
   9
  10 //////////////////////////////////////////////////////////////////////
  11 // IUnknown implementation
  12 //////////////////////////////////////////////////////////////////////
  13 STDMETHODIMP CXMergeFactory::QueryInterface(REFIID riid, void **ppvObject)
  14 {
  15     if(ppvObject == NULL)
  16         return E_INVALIDARG;
  17
  18     if(::IsEqualIID(riid, IID_IUnknown) || ::IsEqualIID(riid, IID_IClassFactory))
  19     {
  20         *ppvObject = static_cast<IClassFactory*>(this);
  21     }
  22     else
  23     {
  24         *ppvObject = NULL;
  25         return E_NOINTERFACE;
  26     }
  27
  28     reinterpret_cast<IUnknown*>(*ppvObject)->AddRef();
  29     return S_OK;
  30 }
  31
  32
  33 STDMETHODIMP_(ULONG) CXMergeFactory::AddRef()
  34 {
  35     return ::InterlockedIncrement(&m_cRef);
  36 }
  37
  38
  39 STDMETHODIMP_(ULONG) CXMergeFactory::Release()
  40 {
  41     if(::InterlockedDecrement(&m_cRef) == 0)
  42     {
  43         delete this;
  44         return 0;
  45     }
  46
  47     return m_cRef;
  48 }
  49
  50
  51 //////////////////////////////////////////////////////////////////////
  52 // IUnknown implementation
  53 //////////////////////////////////////////////////////////////////////
  54 STDMETHODIMP CXMergeFactory::CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppvObject)
  55 {
  56     if (ppvObject == NULL)
  57         return E_INVALIDARG;
  58
  59     if (pUnkOuter != NULL)      // cannot aggregate
  60     {
  61         *ppvObject = NULL;
  62         return CLASS_E_NOAGGREGATION;
  63     }
  64
  65     if (iid == IID_ICeFileFilter)
  66     {
  67         CXMergeFilter *pFilter = new CXMergeFilter();
  68         if(pFilter == NULL)
  69         {
  70              *ppvObject = NULL;
  71             return E_OUTOFMEMORY;
  72         }
  73
  74         HRESULT hr = pFilter->QueryInterface(iid, ppvObject);
  75         pFilter->Release();
  76
  77         return hr;
  78     }
  79
  80     return E_INVALIDARG;
  81 }
  82
  83
  84 STDMETHODIMP CXMergeFactory::LockServer(BOOL fLock)
  85 {
  86     _Module.LockServer(fLock);
  87     return S_OK;
  88 }
  89
  90