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combase: Clarify stream data format used by FT marshaler. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2021-10-28 14:22:56 +03:00 committed by Alexandre Julliard
parent e5f7a73c83
commit ecd8fdfb38
2 changed files with 27 additions and 37 deletions
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56
dlls/combase/marshal.c
View File

@ -271,6 +271,12 @@ static HRESULT WINAPI ftmarshaler_GetUnmarshalClass(IMarshal *iface, REFIID riid
return S_OK;
}
union ftmarshaler_data
{
UINT64 value;
IUnknown *object;
};
static HRESULT WINAPI ftmarshaler_GetMarshalSizeMax(IMarshal *iface, REFIID riid, void *pv,
DWORD dest_context, void *pvDestContext, DWORD mshlflags, DWORD *size)
{
@ -283,7 +289,7 @@ static HRESULT WINAPI ftmarshaler_GetMarshalSizeMax(IMarshal *iface, REFIID riid
copied between the apartments */
if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX)
{
*size = sizeof(mshlflags) + sizeof(pv) + sizeof(DWORD) + sizeof(GUID);
*size = sizeof(mshlflags) + sizeof(union ftmarshaler_data) + sizeof(GUID);
return S_OK;
}
@ -307,30 +313,24 @@ static HRESULT WINAPI ftmarshaler_MarshalInterface(IMarshal *iface, IStream *str
copied between the apartments */
if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX)
{
void *object;
DWORD constant = 0;
union ftmarshaler_data data;
GUID unknown_guid = { 0 };
hr = IUnknown_QueryInterface((IUnknown *)pv, riid, &object);
data.value = 0;
hr = IUnknown_QueryInterface((IUnknown *)pv, riid, (void **)&data.object);
if (FAILED(hr))
return hr;
/* don't hold a reference to table-weak marshaled interfaces */
if (mshlflags & MSHLFLAGS_TABLEWEAK)
IUnknown_Release((IUnknown *)object);
IUnknown_Release(data.object);
hr = IStream_Write(stream, &mshlflags, sizeof(mshlflags), NULL);
if (hr != S_OK) return STG_E_MEDIUMFULL;
hr = IStream_Write(stream, &object, sizeof(object), NULL);
hr = IStream_Write(stream, &data, sizeof(data), NULL);
if (hr != S_OK) return STG_E_MEDIUMFULL;
if (sizeof(object) == sizeof(DWORD))
{
hr = IStream_Write(stream, &constant, sizeof(constant), NULL);
if (hr != S_OK) return STG_E_MEDIUMFULL;
}
hr = IStream_Write(stream, &unknown_guid, sizeof(unknown_guid), NULL);
if (hr != S_OK) return STG_E_MEDIUMFULL;
@ -346,9 +346,8 @@ static HRESULT WINAPI ftmarshaler_MarshalInterface(IMarshal *iface, IStream *str
static HRESULT WINAPI ftmarshaler_UnmarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void **ppv)
{
union ftmarshaler_data data;
DWORD mshlflags;
IUnknown *object;
DWORD constant;
GUID unknown_guid;
HRESULT hr;
@ -357,32 +356,23 @@ static HRESULT WINAPI ftmarshaler_UnmarshalInterface(IMarshal *iface, IStream *s
hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL);
if (hr != S_OK) return STG_E_READFAULT;
hr = IStream_Read(stream, &object, sizeof(object), NULL);
hr = IStream_Read(stream, &data, sizeof(data), NULL);
if (hr != S_OK) return STG_E_READFAULT;
if (sizeof(object) == sizeof(DWORD))
{
hr = IStream_Read(stream, &constant, sizeof(constant), NULL);
if (hr != S_OK) return STG_E_READFAULT;
if (constant != 0)
FIXME("constant is 0x%x instead of 0\n", constant);
}
hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL);
if (hr != S_OK) return STG_E_READFAULT;
hr = IUnknown_QueryInterface(object, riid, ppv);
hr = IUnknown_QueryInterface(data.object, riid, ppv);
if (!(mshlflags & (MSHLFLAGS_TABLEWEAK | MSHLFLAGS_TABLESTRONG)))
IUnknown_Release(object);
IUnknown_Release(data.object);
return hr;
}
static HRESULT WINAPI ftmarshaler_ReleaseMarshalData(IMarshal *iface, IStream *stream)
{
union ftmarshaler_data data;
DWORD mshlflags;
IUnknown *object;
DWORD constant;
GUID unknown_guid;
HRESULT hr;
@ -391,21 +381,13 @@ static HRESULT WINAPI ftmarshaler_ReleaseMarshalData(IMarshal *iface, IStream *s
hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL);
if (hr != S_OK) return STG_E_READFAULT;
hr = IStream_Read(stream, &object, sizeof(object), NULL);
hr = IStream_Read(stream, &data, sizeof(data), NULL);
if (hr != S_OK) return STG_E_READFAULT;
if (sizeof(object) == sizeof(DWORD))
{
hr = IStream_Read(stream, &constant, sizeof(constant), NULL);
if (hr != S_OK) return STG_E_READFAULT;
if (constant != 0)
FIXME("constant is 0x%x instead of 0\n", constant);
}
hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL);
if (hr != S_OK) return STG_E_READFAULT;
IUnknown_Release(object);
IUnknown_Release(data.object);
return S_OK;
}

8
dlls/ole32/tests/marshal.c
View File

@ -3181,6 +3181,7 @@ static void test_freethreadedmarshaldata(IStream *pStream, MSHCTX mshctx, void *
static void test_freethreadedmarshaler(void)
{
DWORD size, expected_size;
HRESULT hr;
IUnknown *pFTUnknown;
IMarshal *pFTMarshal;
@ -3201,6 +3202,13 @@ static void test_freethreadedmarshaler(void)
/* inproc normal marshaling */
size = 0;
expected_size = sizeof(DWORD) /* flags */ + sizeof(UINT64) + sizeof(GUID);
hr = IMarshal_GetMarshalSizeMax(pFTMarshal, &IID_IClassFactory, &Test_ClassFactory, MSHCTX_INPROC,
NULL, MSHLFLAGS_NORMAL, &size);
ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
ok(size == expected_size, "Unexpected marshal size %u, expected %u.\n", size, expected_size);
hr = IMarshal_GetUnmarshalClass(pFTMarshal, &IID_IClassFactory,
&Test_ClassFactory, MSHCTX_INPROC, NULL, MSHLFLAGS_NORMAL, &clsid);
ok_ole_success(hr, IMarshal_GetUnmarshalClass);