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ole32: Move the handling of loading a dll and getting an in-process object from it to an apartment-specific function.

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Use it to implement apartment_hostobject in a cleaner way so that it is 
guaranteed to not recurse.
This commit is contained in:
Rob Shearman 2007-04-04 18:55:23 +01:00 committed by Alexandre Julliard
parent 679bfdab28
commit c40f1b6659
1 changed files with 49 additions and 31 deletions
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80
dlls/ole32/compobj.c
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@ -173,12 +173,16 @@ static CRITICAL_SECTION csOpenDllList = { &dll_cs_debug, -1, 0, 0, 0, 0 };
static const WCHAR wszAptWinClass[] = {'O','l','e','M','a','i','n','T','h','r','e','a','d','W','n','d','C','l','a','s','s',' ',
'0','x','#','#','#','#','#','#','#','#',' ',0};
static LRESULT CALLBACK apartment_wndproc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static HRESULT apartment_getclassobject(struct apartment *apt, LPCWSTR dllpath,
REFCLSID rclsid, REFIID riid, void **ppv);
static HRESULT COMPOBJ_DllList_Add(LPCWSTR library_name, OpenDll **ret);
static OpenDll *COMPOBJ_DllList_Get(LPCWSTR library_name);
static void COMPOBJ_DllList_ReleaseRef(OpenDll *entry);
static void COMPOBJ_DllList_FreeUnused(int Timeout);
static DWORD COM_RegReadPath(HKEY hkeyroot, const WCHAR *keyname, const WCHAR *valuename, WCHAR * dst, DWORD dstlen);
static void COMPOBJ_InitProcess( void )
{
WNDCLASSW wclass;
@ -479,15 +483,24 @@ struct host_object_params
IStream *stream; /* stream that the object will be marshaled into */
};
static HRESULT apartment_hostobject(const struct host_object_params *params)
static HRESULT apartment_hostobject(struct apartment *apt,
const struct host_object_params *params)
{
IUnknown *object;
HRESULT hr;
static const LARGE_INTEGER llZero;
WCHAR dllpath[MAX_PATH+1];
TRACE("\n");
hr = get_inproc_class_object(params->hkeydll, &params->clsid, &params->iid, (void **)&object);
if (COM_RegReadPath(params->hkeydll, NULL, NULL, dllpath, ARRAYSIZE(dllpath)) != ERROR_SUCCESS)
{
/* failure: CLSID is not found in registry */
WARN("class %s not registered inproc\n", debugstr_guid(&params->clsid));
return REGDB_E_CLASSNOTREG;
}
hr = apartment_getclassobject(apt, dllpath, &params->clsid, &params->iid, (void **)&object);
if (FAILED(hr))
return hr;
@ -507,7 +520,7 @@ static LRESULT CALLBACK apartment_wndproc(HWND hWnd, UINT msg, WPARAM wParam, LP
RPC_ExecuteCall((struct dispatch_params *)lParam);
return 0;
case DM_HOSTOBJECT:
return apartment_hostobject((const struct host_object_params *)lParam);
return apartment_hostobject(COM_CurrentApt(), (const struct host_object_params *)lParam);
default:
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
@ -548,6 +561,37 @@ void apartment_joinmta(void)
COM_CurrentInfo()->apt = MTA;
}
static HRESULT apartment_getclassobject(struct apartment *apt, LPCWSTR dllpath,
REFCLSID rclsid, REFIID riid, void **ppv)
{
typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv);
DllGetClassObjectFunc DllGetClassObject;
OpenDll *open_dll_entry;
HRESULT hr;
hr = COMPOBJ_DllList_Add( dllpath, &open_dll_entry );
if (FAILED(hr))
{
ERR("couldn't load in-process dll %s\n", debugstr_w(dllpath));
return hr;
}
if (!(DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(open_dll_entry->library, "DllGetClassObject")))
{
/* failure: the dll did not export DllGetClassObject */
ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(dllpath));
return CO_E_DLLNOTFOUND;
}
/* OK: get the ClassObject */
hr = DllGetClassObject(rclsid, riid, ppv);
if (hr != S_OK)
ERR("DllGetClassObject returned error 0x%08x\n", hr);
return hr;
}
/*****************************************************************************
* This section contains OpenDllList implementation
*/
@ -1769,18 +1813,15 @@ static HRESULT get_inproc_class_object(HKEY hkeydll, REFCLSID rclsid, REFIID rii
static const WCHAR wszApartment[] = {'A','p','a','r','t','m','e','n','t',0};
static const WCHAR wszFree[] = {'F','r','e','e',0};
static const WCHAR wszBoth[] = {'B','o','t','h',0};
typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv);
DllGetClassObjectFunc DllGetClassObject;
WCHAR dllpath[MAX_PATH+1];
WCHAR threading_model[10 /* strlenW(L"apartment")+1 */];
HRESULT hr;
OpenDll *open_dll_entry;
APARTMENT *apt = COM_CurrentApt();
get_threading_model(hkeydll, threading_model, ARRAYSIZE(threading_model));
/* "Apartment" */
if (!strcmpiW(threading_model, wszApartment))
{
APARTMENT *apt = COM_CurrentApt();
if (apt->multi_threaded)
{
/* try to find an STA */
@ -1809,7 +1850,6 @@ static HRESULT get_inproc_class_object(HKEY hkeydll, REFCLSID rclsid, REFIID rii
/* "Free" */
else if (!strcmpiW(threading_model, wszFree))
{
APARTMENT *apt = COM_CurrentApt();
if (!apt->multi_threaded)
{
FIXME("should create object %s in multi-threaded apartment\n",
@ -1819,8 +1859,6 @@ static HRESULT get_inproc_class_object(HKEY hkeydll, REFCLSID rclsid, REFIID rii
/* everything except "Apartment", "Free" and "Both" */
else if (strcmpiW(threading_model, wszBoth))
{
APARTMENT *apt = COM_CurrentApt();
/* everything else is main-threaded */
if (threading_model[0])
FIXME("unrecognised threading model %s for object %s, should be main-threaded?\n",
@ -1859,27 +1897,7 @@ static HRESULT get_inproc_class_object(HKEY hkeydll, REFCLSID rclsid, REFIID rii
return REGDB_E_CLASSNOTREG;
}
hr = COMPOBJ_DllList_Add( dllpath, &open_dll_entry );
if (FAILED(hr))
{
ERR("couldn't load in-process dll %s\n", debugstr_w(dllpath));
return hr;
}
if (!(DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(open_dll_entry->library, "DllGetClassObject")))
{
/* failure: the dll did not export DllGetClassObject */
ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(dllpath));
return CO_E_DLLNOTFOUND;
}
/* OK: get the ClassObject */
hr = DllGetClassObject(rclsid, riid, ppv);
if (hr != S_OK)
ERR("DllGetClassObject returned error 0x%08x\n", hr);
return hr;
return apartment_getclassobject(apt, dllpath, rclsid, riid, ppv);
}
/***********************************************************************