[PROPSYS]
[reactos.git] / reactos / dll / win32 / propsys / propstore.c
diff --git a/reactos/dll/win32/propsys/propstore.c b/reactos/dll/win32/propsys/propstore.c
new file mode 100644 (file)
index 0000000..7bb6de2
--- /dev/null
@@ -0,0 +1,481 @@
+/*
+ * 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 WIN32_NO_STATUS
+#define _INC_WINDOWS
+#define COM_NO_WINDOWS_H
+
+#define COBJMACROS
+#include <config.h>
+
+#include <stdarg.h>
+
+#include <windef.h>
+#include <winbase.h>
+#include <objbase.h>
+//#include "rpcproxy.h"
+#include <propsys.h>
+#include <wine/debug.h>
+//#include "wine/unicode.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,
+    int 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, 0, &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, 1, &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, 0, &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, 0, &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, 0, &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, 1, &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;
+}