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ole32: Lock item container on ParseDisplayName(). 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2020-01-23 02:03:04 +03:00 committed by Alexandre Julliard
parent 1f648ddd7a
commit 91fadaad98
1 changed files with 86 additions and 6 deletions
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92
dlls/ole32/itemmoniker.c
View File

@ -57,6 +57,84 @@ static inline ItemMonikerImpl *impl_from_IROTData(IROTData *iface)
return CONTAINING_RECORD(iface, ItemMonikerImpl, IROTData_iface);
}
struct container_lock
{
IUnknown IUnknown_iface;
LONG refcount;
IOleItemContainer *container;
};
static struct container_lock *impl_lock_from_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, struct container_lock, IUnknown_iface);
}
static HRESULT WINAPI container_lock_QueryInterface(IUnknown *iface, REFIID riid, void **obj)
{
if (IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IUnknown_AddRef(iface);
return S_OK;
}
WARN("Unsupported interface %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI container_lock_AddRef(IUnknown *iface)
{
struct container_lock *lock = impl_lock_from_IUnknown(iface);
return InterlockedIncrement(&lock->refcount);
}
static ULONG WINAPI container_lock_Release(IUnknown *iface)
{
struct container_lock *lock = impl_lock_from_IUnknown(iface);
ULONG refcount = InterlockedDecrement(&lock->refcount);
if (!refcount)
{
IOleItemContainer_LockContainer(lock->container, FALSE);
IOleItemContainer_Release(lock->container);
heap_free(lock);
}
return refcount;
}
static const IUnknownVtbl container_lock_vtbl =
{
container_lock_QueryInterface,
container_lock_AddRef,
container_lock_Release,
};
static HRESULT set_container_lock(IOleItemContainer *container, IBindCtx *pbc)
{
struct container_lock *lock;
HRESULT hr;
if (!(lock = heap_alloc(sizeof(*lock))))
return E_OUTOFMEMORY;
if (FAILED(hr = IOleItemContainer_LockContainer(container, TRUE)))
{
heap_free(lock);
return hr;
}
lock->IUnknown_iface.lpVtbl = &container_lock_vtbl;
lock->refcount = 1;
lock->container = container;
IOleItemContainer_AddRef(lock->container);
hr = IBindCtx_RegisterObjectBound(pbc, &lock->IUnknown_iface);
IUnknown_Release(&lock->IUnknown_iface);
return hr;
}
static HRESULT ItemMonikerImpl_Destroy(ItemMonikerImpl* iface);
/*******************************************************************************
@ -787,13 +865,15 @@ static HRESULT WINAPI ItemMonikerImpl_ParseDisplayName(IMoniker *iface, IBindCtx
hr = IMoniker_BindToObject(pmkToLeft, pbc, NULL, &IID_IOleItemContainer, (void **)&container);
if (SUCCEEDED(hr))
{
hr = IOleItemContainer_GetObject(container, This->itemName, get_bind_speed_from_bindctx(pbc), pbc,
&IID_IParseDisplayName, (void **)&parser);
if (SUCCEEDED(hr))
if (SUCCEEDED(hr = set_container_lock(container, pbc)))
{
hr = IParseDisplayName_ParseDisplayName(parser, pbc, displayname, eaten, ppmkOut);
IParseDisplayName_Release(parser);
hr = IOleItemContainer_GetObject(container, This->itemName, get_bind_speed_from_bindctx(pbc), pbc,
&IID_IParseDisplayName, (void **)&parser);
if (SUCCEEDED(hr))
{
hr = IParseDisplayName_ParseDisplayName(parser, pbc, displayname, eaten, ppmkOut);
IParseDisplayName_Release(parser);
}
}
IOleItemContainer_Release(container);
}