diff options
Diffstat (limited to 'src/bootstrap/implregistry.c')
| -rw-r--r-- | src/bootstrap/implregistry.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/src/bootstrap/implregistry.c b/src/bootstrap/implregistry.c deleted file mode 100644 index 91e4068..0000000 --- a/src/bootstrap/implregistry.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * This file is part of libdom. - * Licensed under the MIT License, - * http://www.opensource.org/licenses/mit-license.php - * Copyright 2007 John-Mark Bell <jmb@netsurf-browser.org> - */ - -#include <stddef.h> - -#include <dom/bootstrap/implpriv.h> -#include <dom/bootstrap/implregistry.h> - -#include <dom/core/impllist.h> -#include <dom/core/implementation.h> - -void dom_implementation_list_destroy(struct dom_implementation_list *list); - -/** - * Item in list of registered DOM implementation sources - */ -struct dom_impl_src_item { - struct dom_implementation_source *source; /**< Source */ - - struct dom_impl_src_item *next; /**< Next in list */ - struct dom_impl_src_item *prev; /**< Previous in list */ -}; - -static struct dom_impl_src_item *sources; /**< List of registered sources */ -static dom_alloc alloc; -static void *pw; - -/** - * Initialise the implementation registry - * - * \param allocator The memory allocator - * \param ptr Private data pointer of allocator - * \return DOM_NO_ERR on success - */ -dom_exception dom_implregistry_initialise( - dom_alloc allocator, void *ptr) -{ - alloc = allocator; - pw = ptr; - - return DOM_NO_ERR; -} - -/** - * Retrieve a DOM implementation from the registry - * - * \param features String containing required features - * \param impl Pointer to location to receive implementation - * \return DOM_NO_ERR on success, DOM_NO_MEM_ERR on memory exhaustion - * - * Any memory allocated by this call should be allocated using - * the provided memory (de)allocation function. The implementation's - * destroy() method will be called once it is no longer used. - * - * The implementation will be referenced, so the client need not - * do this explicitly. The client must unref the implementation - * once it has finished with it. - */ -dom_exception dom_implregistry_get_dom_implementation( - struct dom_string *features, - struct dom_implementation **impl) -{ - struct dom_impl_src_item *item; - struct dom_implementation *found = NULL; - dom_exception err; - - for (item = sources; item; item = item->next) { - err = item->source->get_dom_implementation(features, &found); - if (err != DOM_NO_ERR) - return err; - - if (found != NULL) - break; - } - - *impl = found; - - return DOM_NO_ERR; -} - -/** - * Get a list of DOM implementations that support the requested - * features - * - * \param features String containing required features - * \param list Pointer to location to receive list - * \return DOM_NO_ERR on success, DOM_NO_MEM_ERR on memory exhaustion - * - * Any memory allocated by this call should be allocated using - * the provided memory (de)allocation function. - * - * List nodes reference the implementation objects they point to. - * - * The list will be referenced, so the client need not do this - * explicitly. The client must unref the list once it has finished - * with it. - */ -dom_exception dom_implregistry_get_dom_implementation_list( - struct dom_string *features, - struct dom_implementation_list **list) -{ - struct dom_implementation_list *l; - struct dom_impl_src_item *item; - dom_exception err; - - l = alloc(NULL, sizeof(struct dom_implementation_list), pw); - if (l == NULL) - return DOM_NO_MEM_ERR; - - l->head = NULL; - l->refcnt = 1; - l->destroy = dom_implementation_list_destroy; - - for (item = sources; item; item = item->next) { - struct dom_implementation_list *plist = NULL; - struct dom_implementation_list_item *plast = NULL; - - err = item->source->get_dom_implementation_list(features, - &plist); - if (err != DOM_NO_ERR) { - dom_implementation_list_unref(l); - return err; - } - - if (plist == NULL) - continue; - - if (plist->head == NULL) { - dom_implementation_list_unref(plist); - continue; - } - - /* Get last item in list for this source */ - for (plast = plist->head; plast; plast = plast->next) { - if (plast->next == NULL) - break; - } - - /* Prepend list for this source onto result list */ - plast->next = l->head; - if (l->head != NULL) - l->head->prev = plast; - l->head = plist->head; - - /* Invalidate entire content of list for this source */ - plist->head = NULL; - - /* And unref it */ - dom_implementation_list_unref(plist); - } - - if (l->head == NULL) { - *list = NULL; - dom_implementation_list_unref(l); - } else { - *list = l; - } - - return DOM_NO_ERR; -} - -/** - * Register a DOM implementation source with the DOM library - * - * \param source The implementation source to register - * \return DOM_NO_ERR on success, DOM_NO_MEM_ERR on memory exhaustion. - */ -dom_exception dom_register_source(struct dom_implementation_source *source) -{ - struct dom_impl_src_item *item; - - item = alloc(NULL, sizeof(struct dom_impl_src_item), pw); - if (item == NULL) - return DOM_NO_MEM_ERR; - - item->source = source; - - item->next = sources; - item->prev = NULL; - - if (sources != NULL) - sources->prev = item; - - sources = item; - - return DOM_NO_ERR; -} - -/** - * Destroy a dom_implementation_list - * - * \param list The list to destory - */ -void dom_implementation_list_destroy(struct dom_implementation_list *list) -{ - struct dom_implementation_list_item *i, *j; - - /* Destroy all list entries */ - for (i = list->head; i; i = j) { - j = i->next; - - /* Unreference the implementation */ - dom_implementation_unref(i->impl); - - /* And free the entry */ - alloc(i, 0, pw); - } - - /* Free the list object */ - alloc(list, 0, pw); -} |