ReactOS Development > Doxygen

00001 #include "precomp.h"
00002 
00003 typedef struct
00004 {
00005     const IClassFactoryVtbl    *lpVtbl;
00006     LONG                       ref;
00007     CLSID                      *rclsid;
00008     LPFNCREATEINSTANCE         lpfnCI;
00009     const IID *                riidInst;
00010 } IClassFactoryImpl;
00011 
00012 
00013 static
00014 HRESULT
00015 WINAPI
00016 IClassFactory_fnQueryInterface(
00017     LPCLASSFACTORY iface,
00018     REFIID riid,
00019     LPVOID *ppvObj)
00020 {
00021     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
00022 
00023     *ppvObj = NULL;
00024     if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory))
00025     {
00026         *ppvObj = This;
00027         InterlockedIncrement(&This->ref);
00028         return S_OK;
00029     }
00030     return E_NOINTERFACE;
00031 }
00032 
00033 static
00034 ULONG
00035 WINAPI
00036 IClassFactory_fnAddRef(
00037     LPCLASSFACTORY iface)
00038 {
00039     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
00040     ULONG refCount = InterlockedIncrement(&This->ref);
00041 
00042     return refCount;
00043 }
00044 
00045 static
00046 ULONG
00047 WINAPI
00048 IClassFactory_fnRelease(
00049     LPCLASSFACTORY iface)
00050 {
00051     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
00052     ULONG refCount = InterlockedDecrement(&This->ref);
00053 
00054     if (!refCount)
00055     {
00056         CoTaskMemFree(This);
00057         return 0;
00058     }
00059     return refCount;
00060 }
00061 
00062 static
00063 HRESULT
00064 WINAPI
00065 IClassFactory_fnCreateInstance(
00066     LPCLASSFACTORY iface,
00067     LPUNKNOWN pUnkOuter,
00068     REFIID riid,
00069     LPVOID *ppvObject)
00070 {
00071     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
00072 
00073     *ppvObject = NULL;
00074 
00075     if ( This->riidInst==NULL || IsEqualCLSID(riid, This->riidInst) || IsEqualCLSID(riid, &IID_IUnknown) )
00076     {
00077         return This->lpfnCI(pUnkOuter, riid, ppvObject);
00078     }
00079 
00080     return E_NOINTERFACE;
00081 }
00082 
00083 static
00084 HRESULT
00085 WINAPI IClassFactory_fnLockServer(
00086     LPCLASSFACTORY iface,
00087     BOOL fLock)
00088 {
00089     //IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
00090     return E_NOTIMPL;
00091 }
00092 
00093 
00094 static const IClassFactoryVtbl dclfvt =
00095 {
00096     IClassFactory_fnQueryInterface,
00097     IClassFactory_fnAddRef,
00098     IClassFactory_fnRelease,
00099     IClassFactory_fnCreateInstance,
00100     IClassFactory_fnLockServer
00101 };
00102 
00103 
00104 IClassFactory * 
00105 IClassFactory_fnConstructor(
00106     LPFNCREATEINSTANCE lpfnCI, 
00107     PLONG pcRefDll, 
00108     REFIID riidInst)
00109 {
00110     IClassFactoryImpl* lpclf;
00111 
00112     lpclf = CoTaskMemAlloc(sizeof(IClassFactoryImpl));
00113     lpclf->ref = 1;
00114     lpclf->lpVtbl = &dclfvt;
00115     lpclf->lpfnCI = lpfnCI;
00116 
00117     if (pcRefDll)
00118         InterlockedIncrement(pcRefDll);
00119     lpclf->riidInst = riidInst;
00120 
00121     return (LPCLASSFACTORY)lpclf;
00122 }
00123 
00124
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