Huw Davies : dllhost: Try to load the dll server's factory at the start.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7dd952d5a90ac9f18d119cb03292ca0d1cbff72c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=7dd952d5a90ac9f18d119cb03...

Author: Huw Davies 
Date:   Fri May  6 10:35:10 2022 +0100

dllhost: Try to load the dll server's factory at the start.

This lets dllhost quit early if the factory cannot be loaded.

Signed-off-by: Huw Davies 
Signed-off-by: Alexandre Julliard

---

programs/dllhost/dllhost.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/programs/dllhost/dllhost.c b/programs/dllhost/dllhost.c
index 83700826f8b..9e3455ee15a 100644
--- a/programs/dllhost/dllhost.c
+++ b/programs/dllhost/dllhost.c
@@ -34,6 +34,7 @@ struct factory
     IMarshal IMarshal_iface;
     CLSID clsid;
     LONG ref;
+    IClassFactory *dll_factory;
 };

static inline struct factory *impl_from_IClassFactory(IClassFactory *iface)
@@ -90,7 +91,10 @@ static ULONG WINAPI factory_Release(IClassFactory *iface)
     TRACE("(%p)->%lu\n", iface, ref);

if (!ref)
+    {
+        if (factory->dll_factory) IClassFactory_Release(factory->dll_factory);
         HeapFree(GetProcessHeap(), 0, factory);
+    }

return ref;
 }
@@ -166,18 +170,10 @@ static HRESULT WINAPI marshal_MarshalInterface(IMarshal *iface, IStream *stream,
         void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshlflags)
 {
     struct factory *factory = impl_from_IMarshal(iface);
-    IUnknown *object;
-    HRESULT hr;

TRACE("(%p,%s,%p,%08lx,%p,%08lx)\n", stream, wine_dbgstr_guid(iid), pv, dwDestContext, pvDestContext, mshlflags);

-    hr = CoGetClassObject(&factory->clsid, CLSCTX_INPROC_SERVER, NULL, iid, (void **)&object);
-    if (hr == S_OK)
-    {
-        hr = CoMarshalInterface(stream, iid, object, dwDestContext, pvDestContext, mshlflags);
-        IUnknown_Release(object);
-    }
-    return hr;
+    return CoMarshalInterface(stream, iid, (IUnknown *)factory->dll_factory, dwDestContext, pvDestContext, mshlflags);
 }

static HRESULT WINAPI marshal_UnmarshalInterface(IMarshal *iface, IStream *stream,
@@ -275,10 +271,13 @@ static HRESULT WINAPI surrogate_LoadDllServer(ISurrogate *iface, const CLSID *cl
     factory->IMarshal_iface.lpVtbl = &Marshal_Vtbl;
     factory->clsid = *clsid;
     factory->ref = 1;
+    factory->dll_factory = NULL;

-    hr = CoRegisterClassObject(clsid, (IUnknown *)&factory->IClassFactory_iface,
-                               CLSCTX_LOCAL_SERVER, REGCLS_SURROGATE, &surrogate->cookie);
-    if (hr != S_OK)
+    hr = CoGetClassObject(clsid, CLSCTX_INPROC_SERVER, NULL, &IID_IClassFactory, (void **)&factory->dll_factory);
+    if (SUCCEEDED(hr))
+        hr = CoRegisterClassObject(clsid, (IUnknown *)&factory->IClassFactory_iface,
+                                   CLSCTX_LOCAL_SERVER, REGCLS_SURROGATE, &surrogate->cookie);
+    if (FAILED(hr))
         IClassFactory_Release(&factory->IClassFactory_iface);
     else
     {