Changeset 6710 for trunk/src/quartz/iunk.c

Timestamp:

Sep 15, 2001, 11:28:23 AM (24 years ago)

Author:

sandervl

Message:

wine update

File:

• trunk/src/quartz/iunk.c (modified) (6 diffs)

trunk/src/quartz/iunk.c

@@ -1 @@
-/* $Id: iunk.c,v 1.3 2001-09-05 13:36:37 bird Exp $ */
 /*
  * An implementation of IUnknown.
@@ -10 +9 @@
 #include "windef.h"
 #include "winerror.h"
+#include "winbase.h"
 #include "wine/obj_base.h"
 
@@ -22 +22 @@
 IUnknown_fnQueryInterface(IUnknown* iface,REFIID riid,LPVOID *ppobj)
 {
-    ICOM_THIS(QUARTZ_IUnkImpl,iface);
-    size_t  ofs;
-    DWORD   dwIndex;
+        ICOM_THIS(QUARTZ_IUnkImpl,iface);
+        size_t  ofs;
+        DWORD   dwIndex;
+        QUARTZ_IFDelegation*    pDelegation;
+        HRESULT hr;
 
-    TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
+        TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
 
-    if ( ppobj == NULL )
-        return E_POINTER;
-    *ppobj = NULL;
+        if ( ppobj == NULL )
+                return E_POINTER;
+        *ppobj = NULL;
 
-    ofs = 0;
+        ofs = 0;
 
-    if ( IsEqualGUID( &IID_IUnknown, riid ) )
-    {
-        TRACE("IID_IUnknown - returns inner object.\n");
-    }
-    else
-    {
-        for ( dwIndex = 0; dwIndex < This->dwEntries; dwIndex++ )
-        {
-            if ( IsEqualGUID( This->pEntries[dwIndex].piid, riid ) )
-            {
-                ofs = This->pEntries[dwIndex].ofsVTPtr;
-                break;
-            }
-        }
-        if ( dwIndex == This->dwEntries )
-        {
-            FIXME("unknown interface: %s\n",debugstr_guid(riid));
-            return E_NOINTERFACE;
-        }
-    }
+        if ( IsEqualGUID( &IID_IUnknown, riid ) )
+        {
+                TRACE("IID_IUnknown - returns inner object.\n");
+        }
+        else
+        {
+                for ( dwIndex = 0; dwIndex < This->dwEntries; dwIndex++ )
+                {
+                        if ( IsEqualGUID( This->pEntries[dwIndex].piid, riid ) )
+                        {
+                                ofs = This->pEntries[dwIndex].ofsVTPtr;
+                                break;
+                        }
+                }
+                if ( dwIndex == This->dwEntries )
+                {
+                        hr = E_NOINTERFACE;
 
-    *ppobj = (LPVOID)(((char*)This) + ofs);
-    IUnknown_AddRef((IUnknown*)(*ppobj));
+                        /* delegation */
+                        pDelegation = This->pDelegationFirst;
+                        while ( pDelegation != NULL )
+                        {
+                                hr = (*pDelegation->pOnQueryInterface)( iface, riid, ppobj );
+                                if ( hr != E_NOINTERFACE )
+                                        break;
+                                pDelegation = pDelegation->pNext;
+                        }
 
-    return S_OK;
+                        if ( hr == E_NOINTERFACE )
+                        {
+                                FIXME("unknown interface: %s\n",debugstr_guid(riid));
+                        }
+
+                        return hr;
+                }
+        }
+
+        *ppobj = (LPVOID)(((char*)This) + ofs);
+        IUnknown_AddRef((IUnknown*)(*ppobj));
+
+        return S_OK;
 }
 
@@ -64 +82 @@
 IUnknown_fnAddRef(IUnknown* iface)
 {
-    ICOM_THIS(QUARTZ_IUnkImpl,iface);
+        ICOM_THIS(QUARTZ_IUnkImpl,iface);
 
-    TRACE("(%p)->()\n",This);
+        TRACE("(%p)->()\n",This);
 
-    return ++(This->ref);
+        return InterlockedExchangeAdd(&(This->ref),1) + 1;
 }
 
@@ -74 +92 @@
 IUnknown_fnRelease(IUnknown* iface)
 {
-    ICOM_THIS(QUARTZ_IUnkImpl,iface);
+        ICOM_THIS(QUARTZ_IUnkImpl,iface);
+        LONG    ref;
 
-    TRACE("(%p)->()\n",This);
-    if ( (--(This->ref)) > 0 )
-        return This->ref;
+        TRACE("(%p)->()\n",This);
+        ref = InterlockedExchangeAdd(&(This->ref),-1) - 1;
+        if ( ref > 0 )
+                return (ULONG)ref;
 
-    QUARTZ_FreeObj(This);
+        if ( This->pOnFinalRelease != NULL )
+                (*(This->pOnFinalRelease))(iface);
 
-    return 0;
+        QUARTZ_FreeObj(This);
+
+        return 0;
 }
 
 static ICOM_VTABLE(IUnknown) iunknown =
 {
-    ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
-    /* IUnknown fields */
-    IUnknown_fnQueryInterface,
-    IUnknown_fnAddRef,
-    IUnknown_fnRelease,
+        ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
+        /* IUnknown fields */
+        IUnknown_fnQueryInterface,
+        IUnknown_fnAddRef,
+        IUnknown_fnRelease,
 };
 
@@ -97 +120 @@
 void QUARTZ_IUnkInit( QUARTZ_IUnkImpl* pImpl, IUnknown* punkOuter )
 {
-    TRACE("(%p)\n",pImpl);
+        TRACE("(%p)\n",pImpl);
 
-    ICOM_VTBL(pImpl) = &iunknown;
-    pImpl->pEntries = NULL;
-    pImpl->dwEntries = 0;
-    pImpl->ref = 1;
-    pImpl->punkControl = (IUnknown*)pImpl;
+        ICOM_VTBL(pImpl) = &iunknown;
+        pImpl->pEntries = NULL;
+        pImpl->dwEntries = 0;
+        pImpl->pDelegationFirst = NULL;
+        pImpl->pOnFinalRelease = NULL;
+        pImpl->ref = 1;
+        pImpl->punkControl = (IUnknown*)pImpl;
 
-    /* for delegation. */
-    if ( punkOuter != NULL )
-        pImpl->punkControl = punkOuter;
+        /* for implementing aggregation. */
+        if ( punkOuter != NULL )
+                pImpl->punkControl = punkOuter;
 }
 
+void QUARTZ_IUnkAddDelegation(
+        QUARTZ_IUnkImpl* pImpl, QUARTZ_IFDelegation* pDelegation )
+{
+        pDelegation->pNext = pImpl->pDelegationFirst;
+        pImpl->pDelegationFirst = pDelegation;
+}
+