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132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/*
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* Copyright 2006 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "wine/debug.h"
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#include "crypt32_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(context);
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context_t *Context_CreateDataContext(size_t contextSize, const context_vtbl_t *vtbl, WINECRYPT_CERTSTORE *store)
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{
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context_t *context;
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context = CryptMemAlloc(sizeof(context_t) + contextSize);
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if (!context)
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return NULL;
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context->properties = ContextPropertyList_Create();
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if (!context->properties)
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{
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CryptMemFree(context);
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return NULL;
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}
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context->vtbl = vtbl;
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context->ref = 1;
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context->linked = NULL;
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store->vtbl->addref(store);
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context->store = store;
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TRACE("returning %p\n", context);
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return context;
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}
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context_t *Context_CreateLinkContext(unsigned int contextSize, context_t *linked, WINECRYPT_CERTSTORE *store)
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{
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context_t *context;
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TRACE("(%d, %p)\n", contextSize, linked);
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context = CryptMemAlloc(sizeof(context_t) + contextSize);
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if (!context)
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return NULL;
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memcpy(context_ptr(context), context_ptr(linked), contextSize);
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context->vtbl = linked->vtbl;
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context->ref = 1;
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context->linked = linked;
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context->properties = linked->properties;
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Context_AddRef(linked);
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store->vtbl->addref(store);
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context->store = store;
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TRACE("returning %p\n", context);
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return context;
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}
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void Context_AddRef(context_t *context)
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{
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LONG ref = InterlockedIncrement(&context->ref);
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TRACE("(%p) ref=%d\n", context, context->ref);
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if(ref == 1) {
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/* This is the first external (non-store) reference. Increase store ref cnt. */
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context->store->vtbl->addref(context->store);
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}
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}
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void Context_Free(context_t *context)
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{
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TRACE("(%p)\n", context);
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assert(!context->ref);
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if (!context->linked) {
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ContextPropertyList_Free(context->properties);
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context->vtbl->free(context);
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}else {
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Context_Release(context->linked);
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}
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CryptMemFree(context);
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}
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void Context_Release(context_t *context)
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{
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LONG ref = InterlockedDecrement(&context->ref);
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TRACE("(%p) ref=%d\n", context, ref);
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assert(ref >= 0);
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if (!ref) {
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WINECRYPT_CERTSTORE *store = context->store;
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/* This is the last reference, but the context still may be in a store.
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* We release our store reference, but leave it up to store to free or keep the context. */
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store->vtbl->releaseContext(store, context);
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store->vtbl->release(store, 0);
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}
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}
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void Context_CopyProperties(const void *to, const void *from)
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{
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CONTEXT_PROPERTY_LIST *toProperties, *fromProperties;
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toProperties = context_from_ptr(to)->properties;
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fromProperties = context_from_ptr(from)->properties;
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assert(toProperties && fromProperties);
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ContextPropertyList_Copy(toProperties, fromProperties);
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}
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