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/*
* Marshalling library
*
* Copyright 2002 Marcus Meissner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "objbase.h"
#include "ole2.h"
#include "ole2ver.h"
#include "rpc.h"
#include "winerror.h"
#include "winreg.h"
#include "wownt32.h"
#include "wtypes.h"
#include "wine/unicode.h"
#include "wine/winbase16.h"
#include "compobj_private.h"
#include "ifs.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
extern const CLSID CLSID_DfMarshal;
/* Marshalling just passes a unique identifier to the remote client,
* that makes it possible to find the passed interface again.
*
* So basically we need a set of values that make it unique.
*
* Process Identifier, Object IUnknown ptr, IID
*
* Note that the IUnknown_QI(ob,xiid,&ppv) always returns the SAME ppv value!
*/
inline static HRESULT
get_facbuf_for_iid(REFIID riid,IPSFactoryBuffer **facbuf) {
HRESULT hres;
CLSID pxclsid;
if ((hres = CoGetPSClsid(riid,&pxclsid)))
return hres;
return CoGetClassObject(&pxclsid,CLSCTX_INPROC_SERVER,NULL,&IID_IPSFactoryBuffer,(LPVOID*)facbuf);
}
typedef struct _wine_marshal_data {
DWORD dwDestContext;
DWORD mshlflags;
} wine_marshal_data;
typedef struct _mid2unknown {
wine_marshal_id mid;
LPUNKNOWN pUnk;
} mid2unknown;
typedef struct _mid2stub {
wine_marshal_id mid;
IRpcStubBuffer *stub;
LPUNKNOWN pUnkServer;
BOOL valid;
} mid2stub;
static mid2stub *stubs = NULL;
static int nrofstubs = 0;
static mid2unknown *proxies = NULL;
static int nrofproxies = 0;
void MARSHAL_Invalidate_Stub_From_MID(wine_marshal_id *mid) {
int i;
for (i=0;i<nrofstubs;i++) {
if (!stubs[i].valid) continue;
if (MARSHAL_Compare_Mids(mid,&(stubs[i].mid))) {
stubs[i].valid = FALSE;
return;
}
}
return;
}
HRESULT
MARSHAL_Find_Stub_Buffer(wine_marshal_id *mid,IRpcStubBuffer **stub) {
int i;
for (i=0;i<nrofstubs;i++) {
if (!stubs[i].valid) continue;
if (MARSHAL_Compare_Mids(mid,&(stubs[i].mid))) {
*stub = stubs[i].stub;
IUnknown_AddRef((*stub));
return S_OK;
}
}
return E_FAIL;
}
static HRESULT
MARSHAL_Find_Stub(wine_marshal_id *mid,LPUNKNOWN *pUnk) {
int i;
for (i=0;i<nrofstubs;i++) {
if (!stubs[i].valid) continue;
if (MARSHAL_Compare_Mids(mid,&(stubs[i].mid))) {
*pUnk = stubs[i].pUnkServer;
IUnknown_AddRef((*pUnk));
return S_OK;
}
}
return E_FAIL;
}
static HRESULT
MARSHAL_Register_Stub(wine_marshal_id *mid,LPUNKNOWN pUnk,IRpcStubBuffer *stub) {
LPUNKNOWN xPunk;
if (!MARSHAL_Find_Stub(mid,&xPunk)) {
FIXME("Already have entry for (%lx/%s)!\n",mid->objectid,debugstr_guid(&(mid->iid)));
return S_OK;
}
if (nrofstubs)
stubs=HeapReAlloc(GetProcessHeap(),0,stubs,sizeof(stubs[0])*(nrofstubs+1));
else
stubs=HeapAlloc(GetProcessHeap(),0,sizeof(stubs[0]));
if (!stubs) return E_OUTOFMEMORY;
stubs[nrofstubs].stub = stub;
stubs[nrofstubs].pUnkServer = pUnk;
memcpy(&(stubs[nrofstubs].mid),mid,sizeof(*mid));
stubs[nrofstubs].valid = TRUE; /* set to false when released by ReleaseMarshalData */
nrofstubs++;
return S_OK;
}
HRESULT
MARSHAL_Disconnect_Proxies() {
int i;
TRACE("Disconnecting %d proxies\n", nrofproxies);
for (i = 0; i < nrofproxies; i++)
IRpcProxyBuffer_Disconnect((IRpcProxyBuffer*)proxies[i].pUnk);
return S_OK;
}
static HRESULT
MARSHAL_Register_Proxy(wine_marshal_id *mid,LPUNKNOWN punk) {
int i;
for (i=0;i<nrofproxies;i++) {
if (MARSHAL_Compare_Mids(mid,&(proxies[i].mid))) {
ERR("Already have mid?\n");
return E_FAIL;
}
}
if (nrofproxies)
proxies = HeapReAlloc(GetProcessHeap(),0,proxies,sizeof(proxies[0])*(nrofproxies+1));
else
proxies = HeapAlloc(GetProcessHeap(),0,sizeof(proxies[0]));
memcpy(&(proxies[nrofproxies].mid),mid,sizeof(*mid));
proxies[nrofproxies].pUnk = punk;
nrofproxies++;
IUnknown_AddRef(punk);
return S_OK;
}
/********************** StdMarshal implementation ****************************/
typedef struct _StdMarshalImpl {
IMarshalVtbl *lpvtbl;
DWORD ref;
IID iid;
DWORD dwDestContext;
LPVOID pvDestContext;
DWORD mshlflags;
} StdMarshalImpl;
static HRESULT WINAPI
StdMarshalImpl_QueryInterface(LPMARSHAL iface,REFIID riid,LPVOID *ppv) {
*ppv = NULL;
if (IsEqualIID(&IID_IUnknown,riid) || IsEqualIID(&IID_IMarshal,riid)) {
*ppv = iface;
IUnknown_AddRef(iface);
return S_OK;
}
FIXME("No interface for %s.\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI
StdMarshalImpl_AddRef(LPMARSHAL iface) {
StdMarshalImpl *This = (StdMarshalImpl *)iface;
This->ref++;
return This->ref;
}
static ULONG WINAPI
StdMarshalImpl_Release(LPMARSHAL iface) {
StdMarshalImpl *This = (StdMarshalImpl *)iface;
This->ref--;
if (This->ref)
return This->ref;
HeapFree(GetProcessHeap(),0,This);
return 0;
}
static HRESULT WINAPI
StdMarshalImpl_GetUnmarshalClass(
LPMARSHAL iface, REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, CLSID* pCid
) {
memcpy(pCid,&CLSID_DfMarshal,sizeof(CLSID_DfMarshal));
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_GetMarshalSizeMax(
LPMARSHAL iface, REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, DWORD* pSize
) {
*pSize = sizeof(wine_marshal_id)+sizeof(wine_marshal_data);
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_MarshalInterface(
LPMARSHAL iface, IStream *pStm,REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags
) {
wine_marshal_id mid;
wine_marshal_data md;
IUnknown *pUnk;
ULONG res;
HRESULT hres;
IRpcStubBuffer *stub;
IPSFactoryBuffer *psfacbuf;
TRACE("(...,%s,...)\n",debugstr_guid(riid));
IUnknown_QueryInterface((LPUNKNOWN)pv,&IID_IUnknown,(LPVOID*)&pUnk);
mid.processid = GetCurrentProcessId();
mid.objectid = (DWORD)pUnk; /* FIXME */
IUnknown_Release(pUnk);
memcpy(&mid.iid,riid,sizeof(mid.iid));
md.dwDestContext = dwDestContext;
md.mshlflags = mshlflags;
hres = IStream_Write(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
hres = IStream_Write(pStm,&md,sizeof(md),&res);
if (hres) return hres;
if (SUCCEEDED(MARSHAL_Find_Stub_Buffer(&mid,&stub))) {
/* Find_Stub_Buffer gives us a ref but we want to keep it, as if we'd created a new one */
TRACE("Found RpcStubBuffer %p\n", stub);
return S_OK;
}
hres = get_facbuf_for_iid(riid,&psfacbuf);
if (hres) return hres;
hres = IPSFactoryBuffer_CreateStub(psfacbuf,riid,pv,&stub);
IPSFactoryBuffer_Release(psfacbuf);
if (hres) {
FIXME("Failed to create a stub for %s\n",debugstr_guid(riid));
return hres;
}
IUnknown_QueryInterface((LPUNKNOWN)pv,riid,(LPVOID*)&pUnk);
MARSHAL_Register_Stub(&mid,pUnk,stub);
IUnknown_Release(pUnk);
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_UnmarshalInterface(
LPMARSHAL iface, IStream *pStm, REFIID riid, void **ppv
) {
wine_marshal_id mid;
wine_marshal_data md;
ULONG res;
HRESULT hres;
IPSFactoryBuffer *psfacbuf;
IRpcProxyBuffer *rpcproxy;
IRpcChannelBuffer *chanbuf;
TRACE("(...,%s,....)\n",debugstr_guid(riid));
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
hres = IStream_Read(pStm,&md,sizeof(md),&res);
if (hres) return hres;
if (SUCCEEDED(MARSHAL_Find_Stub(&mid,(LPUNKNOWN*)ppv))) {
FIXME("Calling back to ourselves for %s!\n",debugstr_guid(riid));
return S_OK;
}
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_NULL)) {
/* should return proxy manager IUnknown object */
FIXME("Special treatment required for IID of %s\n", debugstr_guid(riid));
}
hres = get_facbuf_for_iid(riid,&psfacbuf);
if (hres) return hres;
hres = IPSFactoryBuffer_CreateProxy(psfacbuf,NULL,riid,&rpcproxy,ppv);
if (hres) {
FIXME("Failed to create a proxy for %s\n",debugstr_guid(riid));
return hres;
}
MARSHAL_Register_Proxy(&mid, (LPUNKNOWN) rpcproxy);
hres = PIPE_GetNewPipeBuf(&mid,&chanbuf);
IPSFactoryBuffer_Release(psfacbuf);
if (hres) {
ERR("Failed to get an rpc channel buffer for %s\n",debugstr_guid(riid));
} else {
/* Connect the channel buffer to the proxy and release the no longer
* needed proxy.
* NOTE: The proxy should have taken an extra reference because it also
* aggregates the object, so we can safely release our reference to it. */
IRpcProxyBuffer_Connect(rpcproxy,chanbuf);
IRpcProxyBuffer_Release(rpcproxy);
/* IRpcProxyBuffer takes a reference on the channel buffer and
* we no longer need it, so release it */
IRpcChannelBuffer_Release(chanbuf);
}
return hres;
}
static HRESULT WINAPI
StdMarshalImpl_ReleaseMarshalData(LPMARSHAL iface, IStream *pStm) {
wine_marshal_id mid;
ULONG res;
HRESULT hres;
IRpcStubBuffer *stub = NULL;
int i;
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
for (i=0; i < nrofstubs; i++)
{
if (!stubs[i].valid) continue;
if (MARSHAL_Compare_Mids(&mid, &(stubs[i].mid)))
{
stub = stubs[i].stub;
break;
}
}
if (!stub)
{
FIXME("Could not map MID to stub??\n");
return E_FAIL;
}
res = IRpcStubBuffer_Release(stub);
stubs[i].valid = FALSE;
TRACE("stub refcount of %p is %ld\n", stub, res);
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_DisconnectObject(LPMARSHAL iface, DWORD dwReserved) {
FIXME("(), stub!\n");
return S_OK;
}
IMarshalVtbl stdmvtbl = {
StdMarshalImpl_QueryInterface,
StdMarshalImpl_AddRef,
StdMarshalImpl_Release,
StdMarshalImpl_GetUnmarshalClass,
StdMarshalImpl_GetMarshalSizeMax,
StdMarshalImpl_MarshalInterface,
StdMarshalImpl_UnmarshalInterface,
StdMarshalImpl_ReleaseMarshalData,
StdMarshalImpl_DisconnectObject
};
/***********************************************************************
* CoGetStandardMarshal [OLE32.@]
*
* When the COM library in the client process receives a marshalled
* interface pointer, it looks for a CLSID to be used in creating a proxy
* for the purposes of unmarshalling the packet. If the packet does not
* contain a CLSID for the proxy, COM calls CoGetStandardMarshal, passing a
* NULL pUnk value.
* This function creates a standard proxy in the client process and returns
* a pointer to that proxy's implementation of IMarshal.
* COM uses this pointer to call CoUnmarshalInterface to retrieve the pointer
* to the requested interface.
*/
HRESULT WINAPI
CoGetStandardMarshal(
REFIID riid,IUnknown *pUnk,DWORD dwDestContext,LPVOID pvDestContext,
DWORD mshlflags, LPMARSHAL *pMarshal
) {
StdMarshalImpl *dm;
if (pUnk == NULL) {
FIXME("(%s,NULL,%lx,%p,%lx,%p), unimplemented yet.\n",
debugstr_guid(riid),dwDestContext,pvDestContext,mshlflags,pMarshal
);
return E_FAIL;
}
TRACE("(%s,%p,%lx,%p,%lx,%p)\n",
debugstr_guid(riid),pUnk,dwDestContext,pvDestContext,mshlflags,pMarshal
);
*pMarshal = HeapAlloc(GetProcessHeap(),0,sizeof(StdMarshalImpl));
dm = (StdMarshalImpl*) *pMarshal;
if (!dm) return E_FAIL;
dm->lpvtbl = &stdmvtbl;
dm->ref = 1;
memcpy(&dm->iid,riid,sizeof(dm->iid));
dm->dwDestContext = dwDestContext;
dm->pvDestContext = pvDestContext;
dm->mshlflags = mshlflags;
return S_OK;
}
/* Helper function for getting Marshaler */
static HRESULT WINAPI
_GetMarshaller(REFIID riid, IUnknown *pUnk,DWORD dwDestContext,
void *pvDestContext, DWORD mshlFlags, LPMARSHAL *pMarshal
) {
HRESULT hres;
if (!pUnk)
return E_POINTER;
hres = IUnknown_QueryInterface(pUnk,&IID_IMarshal,(LPVOID*)pMarshal);
if (hres)
hres = CoGetStandardMarshal(riid,pUnk,dwDestContext,pvDestContext,mshlFlags,pMarshal);
return hres;
}
/***********************************************************************
* CoGetMarshalSizeMax [OLE32.@]
*/
HRESULT WINAPI
CoGetMarshalSizeMax(ULONG *pulSize, REFIID riid, IUnknown *pUnk,
DWORD dwDestContext, void *pvDestContext, DWORD mshlFlags
) {
HRESULT hres;
LPMARSHAL pMarshal;
hres = _GetMarshaller(riid,pUnk,dwDestContext,pvDestContext,mshlFlags,&pMarshal);
if (hres)
return hres;
hres = IMarshal_GetMarshalSizeMax(pMarshal,riid,pUnk,dwDestContext,pvDestContext,mshlFlags,pulSize);
*pulSize += sizeof(wine_marshal_id)+sizeof(wine_marshal_data)+sizeof(CLSID);
IMarshal_Release(pMarshal);
return hres;
}
/***********************************************************************
* CoMarshalInterface [OLE32.@]
*/
HRESULT WINAPI
CoMarshalInterface( IStream *pStm, REFIID riid, IUnknown *pUnk,
DWORD dwDestContext, void *pvDestContext, DWORD mshlflags
) {
HRESULT hres;
LPMARSHAL pMarshal;
CLSID xclsid;
ULONG writeres;
wine_marshal_id mid;
wine_marshal_data md;
ULONG res;
IUnknown *pUnknown;
TRACE("(%p, %s, %p, %lx, %p, %lx)\n",
pStm,debugstr_guid(riid),pUnk,dwDestContext,pvDestContext,mshlflags
);
if (pUnk == NULL)
return E_INVALIDARG;
STUBMGR_Start(); /* Just to be sure we have one running. */
mid.processid = GetCurrentProcessId();
IUnknown_QueryInterface(pUnk,&IID_IUnknown,(LPVOID*)&pUnknown);
mid.objectid = (DWORD)pUnknown;
IUnknown_Release(pUnknown);
memcpy(&mid.iid,riid,sizeof(mid.iid));
md.dwDestContext = dwDestContext;
md.mshlflags = mshlflags;
hres = IStream_Write(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
hres = IStream_Write(pStm,&md,sizeof(md),&res);
if (hres) return hres;
hres = _GetMarshaller(riid,pUnk,dwDestContext,pvDestContext,mshlflags,&pMarshal);
if (hres) {
FIXME("Failed to get marshaller, %lx?\n",hres);
return hres;
}
hres = IMarshal_GetUnmarshalClass(pMarshal,riid,pUnk,dwDestContext,pvDestContext,mshlflags,&xclsid);
if (hres) {
FIXME("IMarshal:GetUnmarshalClass failed, %lx\n",hres);
goto release_marshal;
}
hres = IStream_Write(pStm,&xclsid,sizeof(xclsid),&writeres);
if (hres) {
FIXME("Stream write failed, %lx\n",hres);
goto release_marshal;
}
TRACE("Calling IMarshal::MarshalInterace\n");
hres = IMarshal_MarshalInterface(pMarshal,pStm,riid,pUnk,dwDestContext,pvDestContext,mshlflags);
if (hres) {
if (IsEqualGUID(riid,&IID_IOleObject)) {
ERR("WINE currently cannot marshal IOleObject interfaces. This means you cannot embed/link OLE objects between applications.\n");
} else {
FIXME("Failed to marshal the interface %s, %lx?\n",debugstr_guid(riid),hres);
}
}
release_marshal:
IMarshal_Release(pMarshal);
return hres;
}
/***********************************************************************
* CoUnmarshalInterface [OLE32.@]
*/
HRESULT WINAPI
CoUnmarshalInterface(IStream *pStm, REFIID riid, LPVOID *ppv) {
HRESULT hres;
wine_marshal_id mid;
wine_marshal_data md;
ULONG res;
LPMARSHAL pMarshal;
LPUNKNOWN pUnk;
CLSID xclsid;
TRACE("(%p,%s,%p)\n",pStm,debugstr_guid(riid),ppv);
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) {
FIXME("Stream read 1 failed, %lx, (%ld of %d)\n",hres,res,sizeof(mid));
return hres;
}
hres = IStream_Read(pStm,&md,sizeof(md),&res);
if (hres) {
FIXME("Stream read 2 failed, %lx, (%ld of %d)\n",hres,res,sizeof(md));
return hres;
}
hres = IStream_Read(pStm,&xclsid,sizeof(xclsid),&res);
if (hres) {
FIXME("Stream read 3 failed, %lx, (%ld of %d)\n",hres,res,sizeof(xclsid));
return hres;
}
hres=CoCreateInstance(&xclsid,NULL,CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER | CLSCTX_LOCAL_SERVER,&IID_IMarshal,(void**)&pUnk);
if (hres) {
FIXME("Failed to create instance of unmarshaller %s.\n",debugstr_guid(&xclsid));
return hres;
}
hres = _GetMarshaller(riid,pUnk,md.dwDestContext,NULL,md.mshlflags,&pMarshal);
if (hres) {
FIXME("Failed to get unmarshaller, %lx?\n",hres);
return hres;
}
hres = IMarshal_UnmarshalInterface(pMarshal,pStm,riid,ppv);
if (hres) {
FIXME("Failed to Unmarshal the interface, %lx?\n",hres);
goto release_marshal;
}
release_marshal:
IMarshal_Release(pMarshal);
return hres;
}
/***********************************************************************
* CoReleaseMarshalData [OLE32.@]
*/
HRESULT WINAPI
CoReleaseMarshalData(IStream *pStm) {
HRESULT hres;
wine_marshal_id mid;
wine_marshal_data md;
ULONG res;
LPMARSHAL pMarshal;
LPUNKNOWN pUnk;
CLSID xclsid;
TRACE("(%p)\n",pStm);
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) {
FIXME("Stream read 1 failed, %lx, (%ld of %d)\n",hres,res,sizeof(mid));
return hres;
}
hres = IStream_Read(pStm,&md,sizeof(md),&res);
if (hres) {
FIXME("Stream read 2 failed, %lx, (%ld of %d)\n",hres,res,sizeof(md));
return hres;
}
hres = IStream_Read(pStm,&xclsid,sizeof(xclsid),&res);
if (hres) {
FIXME("Stream read 3 failed, %lx, (%ld of %d)\n",hres,res,sizeof(xclsid));
return hres;
}
hres=CoCreateInstance(&xclsid,NULL,CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER | CLSCTX_LOCAL_SERVER,&IID_IMarshal,(void**)(char*)&pUnk);
if (hres) {
FIXME("Failed to create instance of unmarshaller %s.\n",debugstr_guid(&xclsid));
return hres;
}
hres = IUnknown_QueryInterface(pUnk,&IID_IMarshal,(LPVOID*)(char*)&pMarshal);
if (hres) {
FIXME("Failed to get IMarshal iface, %lx?\n",hres);
return hres;
}
hres = IMarshal_ReleaseMarshalData(pMarshal,pStm);
if (hres) {
FIXME("Failed to releasemarshaldata the interface, %lx?\n",hres);
}
IMarshal_Release(pMarshal);
IUnknown_Release(pUnk);
return hres;
}
/***********************************************************************
* CoMarshalInterThreadInterfaceInStream [OLE32.@]
*
* Marshal an interface across threads in the same process.
*
* PARAMS
* riid [I] Identifier of the interface to be marshalled.
* pUnk [I] Pointer to IUnknown-derived interface that will be marshalled.
* ppStm [O] Pointer to IStream object that is created and then used to store the marshalled inteface.
*
* RETURNS
* Success: S_OK
* Failure: E_OUTOFMEMORY and other COM error codes
*
* SEE
* CoMarshalInterface(), CoUnmarshalInterface() and CoGetInterfaceAndReleaseStream()
*/
HRESULT WINAPI
CoMarshalInterThreadInterfaceInStream(
REFIID riid, LPUNKNOWN pUnk, LPSTREAM * ppStm)
{
ULARGE_INTEGER xpos;
LARGE_INTEGER seekto;
HRESULT hres;
TRACE("(%s, %p, %p)\n",debugstr_guid(riid), pUnk, ppStm);
hres = CreateStreamOnHGlobal(0, TRUE, ppStm);
if (FAILED(hres)) return hres;
hres = CoMarshalInterface(*ppStm, riid, pUnk, MSHCTX_INPROC, NULL, MSHLFLAGS_NORMAL);
/* FIXME: is this needed? */
memset(&seekto,0,sizeof(seekto));
IStream_Seek(*ppStm,seekto,SEEK_SET,&xpos);
return hres;
}
/***********************************************************************
* CoGetInterfaceAndReleaseStream [OLE32.@]
*
* Unmarshalls an inteface from a stream and then releases the stream.
*
* PARAMS
* pStm [I] Stream that contains the marshalled inteface.
* riid [I] Interface identifier of the object to unmarshall.
* ppv [O] Address of pointer where the requested interface object will be stored.
*
* RETURNS
* Success: S_OK
* Failure: A COM error code
*
* SEE
* CoMarshalInterThreadInterfaceInStream() and CoUnmarshalInteface()
*/
HRESULT WINAPI
CoGetInterfaceAndReleaseStream(LPSTREAM pStm,REFIID riid, LPVOID *ppv)
{
HRESULT hres;
TRACE("(%p, %s, %p)\n", pStm, debugstr_guid(riid), ppv);
hres = CoUnmarshalInterface(pStm, riid, ppv);
IStream_Release(pStm);
return hres;
}
static HRESULT WINAPI
SMCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid, LPVOID *ppv) {
*ppv = NULL;
if (IsEqualIID(riid,&IID_IUnknown) || IsEqualIID(riid,&IID_IClassFactory)) {
*ppv = (LPVOID)iface;
return S_OK;
}
return E_NOINTERFACE;
}
static ULONG WINAPI SMCF_AddRef(LPCLASSFACTORY iface) { return 2; }
static ULONG WINAPI SMCF_Release(LPCLASSFACTORY iface) { return 1; }
static HRESULT WINAPI
SMCF_CreateInstance(
LPCLASSFACTORY iface, LPUNKNOWN pUnk, REFIID riid, LPVOID *ppv
) {
if (IsEqualIID(riid,&IID_IMarshal)) {
StdMarshalImpl *dm;
dm=(StdMarshalImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(StdMarshalImpl));
if (!dm)
return E_FAIL;
dm->lpvtbl = &stdmvtbl;
dm->ref = 1;
*ppv = (LPVOID)dm;
return S_OK;
}
FIXME("(%s), not supported.\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
static HRESULT WINAPI
SMCF_LockServer(LPCLASSFACTORY iface, BOOL fLock) {
FIXME("(%d), stub!\n",fLock);
return S_OK;
}
static IClassFactoryVtbl dfmarshalcfvtbl = {
SMCF_QueryInterface,
SMCF_AddRef,
SMCF_Release,
SMCF_CreateInstance,
SMCF_LockServer
};
static IClassFactoryVtbl *pdfmarshalcfvtbl = &dfmarshalcfvtbl;
HRESULT
MARSHAL_GetStandardMarshalCF(LPVOID *ppv) {
*ppv = &pdfmarshalcfvtbl;
return S_OK;
}
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