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Fixed CoMarshalInterThreadInterfaceInStream and 

CoGetInterfaceAndReleaseStream.
This commit is contained in:
Robert Shearman 2004-05-29 00:22:55 +00:00 committed by Alexandre Julliard
parent c01570cc33
commit 3270bb1ee1
1 changed files with 51 additions and 28 deletions
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79
dlls/ole32/marshal.c
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@ -596,45 +596,68 @@ CoReleaseMarshalData(IStream *pStm) {
/***********************************************************************
* CoMarshalInterThreadInterfaceInStream [OLE32.@]
*
* Marshal interfaces across threads. We don't have a thread distinction,
* meaning most interfaces just work across different threads, the RPC
* handles it.
* 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
) {
ULONG res;
ULARGE_INTEGER xpos;
LARGE_INTEGER seekto;
HRESULT hres;
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 (hres) return hres;
/* CoMarshalInterface(...); */
hres = IStream_Write(*ppStm,&pUnk,sizeof(LPUNKNOWN),&res);
if (hres) return hres;
memset(&seekto,0,sizeof(seekto));
IStream_Seek(*ppStm,seekto,SEEK_SET,&xpos);
return S_OK;
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) {
ULONG res;
HRESULT hres;
LPUNKNOWN pUnk;
CoGetInterfaceAndReleaseStream(LPSTREAM pStm,REFIID riid, LPVOID *ppv)
{
HRESULT hres;
TRACE("(,%s,)\n",debugstr_guid(riid));
/* CoUnmarshalInterface(...); */
hres = IStream_Read(pStm,&pUnk,sizeof(LPUNKNOWN),&res);
if (hres) return hres;
IStream_Release(pStm);
return IUnknown_QueryInterface(pUnk,riid,ppv);
TRACE("(%p, %s, %p)\n", pStm, debugstr_guid(riid), ppv);
hres = CoUnmarshalInterface(pStm, riid, ppv);
IStream_Release(pStm);
return hres;
}
static HRESULT WINAPI