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ole32: Store categories with offset so it's possible to copy them directly.

oldstable
Nikolay Sivov 2013-12-06 16:05:09 +04:00 committed by Alexandre Julliard
parent 4de8d4b0ba
commit aeb35b20ec
1 changed files with 38 additions and 30 deletions
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68
dlls/ole32/comcat.c
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@ -54,9 +54,11 @@ static ComCatMgrImpl COMCAT_ComCatMgr =
{ &COMCAT_ICatInformation_Vtbl }
};
struct class_categories {
LPCWSTR impl_strings;
LPCWSTR req_strings;
struct class_categories
{
ULONG size; /* total length, including structure itself */
ULONG impl_offset;
ULONG req_offset;
};
static IEnumCATEGORYINFO *COMCAT_IEnumCATEGORYINFO_Construct(LCID lcid);
@ -195,22 +197,23 @@ static struct class_categories *COMCAT_PrepareClassCategories(
{
struct class_categories *categories;
WCHAR *strings;
ULONG size;
categories = HeapAlloc(
GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(struct class_categories) +
((impl_count + req_count) * CHARS_IN_GUID + 2) * sizeof(WCHAR));
size = sizeof(struct class_categories) + ((impl_count + req_count)*CHARS_IN_GUID + 2)*sizeof(WCHAR);
categories = HeapAlloc(GetProcessHeap(), 0, size);
if (categories == NULL) return categories;
categories->size = size;
categories->impl_offset = sizeof(struct class_categories);
categories->req_offset = categories->impl_offset + (impl_count*CHARS_IN_GUID + 1)*sizeof(WCHAR);
strings = (WCHAR *)(categories + 1);
categories->impl_strings = strings;
while (impl_count--) {
StringFromGUID2(impl_catids++, strings, CHARS_IN_GUID);
strings += CHARS_IN_GUID;
}
*strings++ = 0;
categories->req_strings = strings;
while (req_count--) {
StringFromGUID2(req_catids++, strings, CHARS_IN_GUID);
strings += CHARS_IN_GUID;
@ -227,16 +230,20 @@ static HRESULT COMCAT_IsClassOfCategories(
HKEY key,
struct class_categories const* categories)
{
const WCHAR *impl_strings, *req_strings;
HKEY subkey;
HRESULT res;
DWORD index;
LPCWSTR string;
impl_strings = (WCHAR*)((BYTE*)categories + categories->impl_offset);
req_strings = (WCHAR*)((BYTE*)categories + categories->req_offset);
/* Check that every given category is implemented by class. */
if (*categories->impl_strings) {
if (*impl_strings) {
res = open_classes_key(key, impl_keyname, KEY_READ, &subkey);
if (res != ERROR_SUCCESS) return S_FALSE;
for (string = categories->impl_strings; *string; string += CHARS_IN_GUID) {
for (string = impl_strings; *string; string += CHARS_IN_GUID) {
HKEY catkey;
res = open_classes_key(subkey, string, 0, &catkey);
if (res != ERROR_SUCCESS) {
@ -259,7 +266,7 @@ static HRESULT COMCAT_IsClassOfCategories(
NULL, NULL, NULL, NULL);
if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) break;
if (size != CHARS_IN_GUID-1) continue; /* bogus catid in registry */
for (string = categories->req_strings; *string; string += CHARS_IN_GUID)
for (string = req_strings; *string; string += CHARS_IN_GUID)
if (!strcmpiW(string, keyname)) break;
if (!*string) {
RegCloseKey(subkey);
@ -1115,33 +1122,34 @@ static HRESULT WINAPI CLSIDEnumGUID_Clone(
IEnumGUID *iface,
IEnumGUID **ppenum)
{
static const WCHAR keynameW[] = {'C','L','S','I','D',0};
CLSID_IEnumGUIDImpl *This = impl_from_IEnumCLSID(iface);
static const WCHAR keyname[] = { 'C', 'L', 'S', 'I', 'D', 0 };
CLSID_IEnumGUIDImpl *new_this;
DWORD size;
CLSID_IEnumGUIDImpl *cloned;
TRACE("\n");
TRACE("(%p)->(%p)\n", This, ppenum);
if (ppenum == NULL) return E_POINTER;
new_this = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLSID_IEnumGUIDImpl));
if (new_this == NULL) return E_OUTOFMEMORY;
*ppenum = NULL;
new_this->IEnumGUID_iface.lpVtbl = This->IEnumGUID_iface.lpVtbl;
new_this->ref = 1;
size = HeapSize(GetProcessHeap(), 0, This->categories);
new_this->categories =
HeapAlloc(GetProcessHeap(), 0, size);
if (new_this->categories == NULL) {
HeapFree(GetProcessHeap(), 0, new_this);
cloned = HeapAlloc(GetProcessHeap(), 0, sizeof(CLSID_IEnumGUIDImpl));
if (cloned == NULL) return E_OUTOFMEMORY;
cloned->IEnumGUID_iface.lpVtbl = This->IEnumGUID_iface.lpVtbl;
cloned->ref = 1;
cloned->categories = HeapAlloc(GetProcessHeap(), 0, This->categories->size);
if (cloned->categories == NULL) {
HeapFree(GetProcessHeap(), 0, cloned);
return E_OUTOFMEMORY;
}
memcpy(new_this->categories, This->categories, size);
/* FIXME: could we more efficiently use DuplicateHandle? */
open_classes_key(HKEY_CLASSES_ROOT, keyname, KEY_READ, &new_this->key);
new_this->next_index = This->next_index;
memcpy(cloned->categories, This->categories, This->categories->size);
*ppenum = &new_this->IEnumGUID_iface;
cloned->key = NULL;
open_classes_key(HKEY_CLASSES_ROOT, keynameW, KEY_READ, &cloned->key);
cloned->next_index = This->next_index;
*ppenum = &cloned->IEnumGUID_iface;
return S_OK;
}