reactos/dll/win32/propsys/propstore.c

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/*
* standard IPropertyStore implementation
*
* Copyright 2012 Vincent Povirk for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "rpcproxy.h"
#include "propsys.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "initguid.h"
#include "propsys_private.h"
DEFINE_GUID(FMTID_NamedProperties, 0xd5cdd505, 0x2e9c, 0x101b, 0x93, 0x97, 0x08, 0x00, 0x2b, 0x2c, 0xf9, 0xae);
WINE_DEFAULT_DEBUG_CHANNEL(propsys);
typedef struct {
struct list entry;
DWORD pid;
PROPVARIANT propvar;
PSC_STATE state;
} propstore_value;
typedef struct {
struct list entry;
GUID fmtid;
struct list values; /* list of struct propstore_value */
DWORD count;
} propstore_format;
typedef struct {
IPropertyStoreCache IPropertyStoreCache_iface;
LONG ref;
CRITICAL_SECTION lock;
struct list formats; /* list of struct propstore_format */
} PropertyStore;
static inline PropertyStore *impl_from_IPropertyStoreCache(IPropertyStoreCache *iface)
{
return CONTAINING_RECORD(iface, PropertyStore, IPropertyStoreCache_iface);
}
static HRESULT WINAPI PropertyStore_QueryInterface(IPropertyStoreCache *iface, REFIID iid,
void **ppv)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IPropertyStore, iid) ||
IsEqualIID(&IID_IPropertyStoreCache, iid))
{
*ppv = &This->IPropertyStoreCache_iface;
}
else
{
FIXME("No interface for %s\n", debugstr_guid(iid));
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI PropertyStore_AddRef(IPropertyStoreCache *iface)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static void destroy_format(propstore_format *format)
{
propstore_value *cursor, *cursor2;
LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &format->values, propstore_value, entry)
{
PropVariantClear(&cursor->propvar);
HeapFree(GetProcessHeap(), 0, cursor);
}
HeapFree(GetProcessHeap(), 0, format);
}
static ULONG WINAPI PropertyStore_Release(IPropertyStoreCache *iface)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
propstore_format *cursor, *cursor2;
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &This->formats, propstore_format, entry)
destroy_format(cursor);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI PropertyStore_GetCount(IPropertyStoreCache *iface,
DWORD *cProps)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_format *format;
TRACE("%p,%p\n", iface, cProps);
if (!cProps)
return E_POINTER;
*cProps = 0;
EnterCriticalSection(&This->lock);
LIST_FOR_EACH_ENTRY(format, &This->formats, propstore_format, entry)
*cProps += format->count;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI PropertyStore_GetAt(IPropertyStoreCache *iface,
DWORD iProp, PROPERTYKEY *pkey)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_format *format=NULL, *format_candidate;
propstore_value *value;
HRESULT hr;
TRACE("%p,%d,%p\n", iface, iProp, pkey);
if (!pkey)
return E_POINTER;
EnterCriticalSection(&This->lock);
LIST_FOR_EACH_ENTRY(format_candidate, &This->formats, propstore_format, entry)
{
if (format_candidate->count > iProp)
{
format = format_candidate;
pkey->fmtid = format->fmtid;
break;
}
iProp -= format_candidate->count;
}
if (format)
{
LIST_FOR_EACH_ENTRY(value, &format->values, propstore_value, entry)
{
if (iProp == 0)
{
pkey->pid = value->pid;
break;
}
iProp--;
}
hr = S_OK;
}
else
hr = E_INVALIDARG;
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT PropertyStore_LookupValue(PropertyStore *This, REFPROPERTYKEY key,
BOOL insert, propstore_value **result)
{
propstore_format *format=NULL, *format_candidate;
propstore_value *value=NULL, *value_candidate;
if (IsEqualGUID(&key->fmtid, &FMTID_NamedProperties))
{
/* This is used in the property store format [MS-PROPSTORE]
* for named values and probably gets special treatment. */
ERR("don't know how to handle FMTID_NamedProperties\n");
return E_FAIL;
}
LIST_FOR_EACH_ENTRY(format_candidate, &This->formats, propstore_format, entry)
{
if (IsEqualGUID(&format_candidate->fmtid, &key->fmtid))
{
format = format_candidate;
break;
}
}
if (!format)
{
if (!insert)
return TYPE_E_ELEMENTNOTFOUND;
format = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*format));
if (!format)
return E_OUTOFMEMORY;
format->fmtid = key->fmtid;
list_init(&format->values);
list_add_tail(&This->formats, &format->entry);
}
LIST_FOR_EACH_ENTRY(value_candidate, &format->values, propstore_value, entry)
{
if (value_candidate->pid == key->pid)
{
value = value_candidate;
break;
}
}
if (!value)
{
if (!insert)
return TYPE_E_ELEMENTNOTFOUND;
value = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*value));
if (!value)
return E_OUTOFMEMORY;
value->pid = key->pid;
list_add_tail(&format->values, &value->entry);
format->count++;
}
*result = value;
return S_OK;
}
static HRESULT WINAPI PropertyStore_GetValue(IPropertyStoreCache *iface,
REFPROPERTYKEY key, PROPVARIANT *pv)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
TRACE("%p,%p,%p\n", iface, key, pv);
if (!pv)
return E_POINTER;
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, FALSE, &value);
if (SUCCEEDED(hr))
hr = PropVariantCopy(pv, &value->propvar);
else if (hr == TYPE_E_ELEMENTNOTFOUND)
{
PropVariantInit(pv);
hr = S_OK;
}
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI PropertyStore_SetValue(IPropertyStoreCache *iface,
REFPROPERTYKEY key, REFPROPVARIANT propvar)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
PROPVARIANT temp;
TRACE("%p,%p,%p\n", iface, key, propvar);
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, TRUE, &value);
if (SUCCEEDED(hr))
hr = PropVariantCopy(&temp, propvar);
if (SUCCEEDED(hr))
{
PropVariantClear(&value->propvar);
value->propvar = temp;
}
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI PropertyStore_Commit(IPropertyStoreCache *iface)
{
FIXME("%p: stub\n", iface);
return S_OK;
}
static HRESULT WINAPI PropertyStore_GetState(IPropertyStoreCache *iface,
REFPROPERTYKEY key, PSC_STATE *pstate)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
TRACE("%p,%p,%p\n", iface, key, pstate);
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, FALSE, &value);
if (SUCCEEDED(hr))
*pstate = value->state;
LeaveCriticalSection(&This->lock);
if (FAILED(hr))
*pstate = PSC_NORMAL;
return hr;
}
static HRESULT WINAPI PropertyStore_GetValueAndState(IPropertyStoreCache *iface,
REFPROPERTYKEY key, PROPVARIANT *ppropvar, PSC_STATE *pstate)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
TRACE("%p,%p,%p,%p\n", iface, key, ppropvar, pstate);
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, FALSE, &value);
if (SUCCEEDED(hr))
hr = PropVariantCopy(ppropvar, &value->propvar);
if (SUCCEEDED(hr))
*pstate = value->state;
LeaveCriticalSection(&This->lock);
if (FAILED(hr))
{
PropVariantInit(ppropvar);
*pstate = PSC_NORMAL;
}
return hr;
}
static HRESULT WINAPI PropertyStore_SetState(IPropertyStoreCache *iface,
REFPROPERTYKEY key, PSC_STATE pstate)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
TRACE("%p,%p,%d\n", iface, key, pstate);
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, FALSE, &value);
if (SUCCEEDED(hr))
value->state = pstate;
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI PropertyStore_SetValueAndState(IPropertyStoreCache *iface,
REFPROPERTYKEY key, const PROPVARIANT *ppropvar, PSC_STATE state)
{
PropertyStore *This = impl_from_IPropertyStoreCache(iface);
propstore_value *value;
HRESULT hr;
PROPVARIANT temp;
TRACE("%p,%p,%p,%d\n", iface, key, ppropvar, state);
EnterCriticalSection(&This->lock);
hr = PropertyStore_LookupValue(This, key, TRUE, &value);
if (SUCCEEDED(hr))
hr = PropVariantCopy(&temp, ppropvar);
if (SUCCEEDED(hr))
{
PropVariantClear(&value->propvar);
value->propvar = temp;
value->state = state;
}
LeaveCriticalSection(&This->lock);
return hr;
}
static const IPropertyStoreCacheVtbl PropertyStore_Vtbl = {
PropertyStore_QueryInterface,
PropertyStore_AddRef,
PropertyStore_Release,
PropertyStore_GetCount,
PropertyStore_GetAt,
PropertyStore_GetValue,
PropertyStore_SetValue,
PropertyStore_Commit,
PropertyStore_GetState,
PropertyStore_GetValueAndState,
PropertyStore_SetState,
PropertyStore_SetValueAndState
};
HRESULT PropertyStore_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
PropertyStore *This;
HRESULT ret;
TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
*ppv = NULL;
if (pUnkOuter) return CLASS_E_NOAGGREGATION;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(PropertyStore));
if (!This) return E_OUTOFMEMORY;
This->IPropertyStoreCache_iface.lpVtbl = &PropertyStore_Vtbl;
This->ref = 1;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PropertyStore.lock");
list_init(&This->formats);
ret = IPropertyStoreCache_QueryInterface(&This->IPropertyStoreCache_iface, iid, ppv);
IPropertyStoreCache_Release(&This->IPropertyStoreCache_iface);
return ret;
}