+++ /dev/null
-/*
- * iterator.c
- *
- * Babeltrace Notification Iterator
- *
- * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <babeltrace/compiler-internal.h>
-#include <babeltrace/ref.h>
-#include <babeltrace/graph/component.h>
-#include <babeltrace/graph/component-source-internal.h>
-#include <babeltrace/graph/component-class-internal.h>
-#include <babeltrace/graph/notification-iterator.h>
-#include <babeltrace/graph/notification-iterator-internal.h>
-#include <babeltrace/graph/notification-internal.h>
-
-static
-void bt_notification_iterator_destroy(struct bt_object *obj)
-{
- struct bt_notification_iterator *iterator;
- struct bt_component_class *comp_class;
-
- assert(obj);
- iterator = container_of(obj, struct bt_notification_iterator,
- base);
- assert(iterator->component);
- comp_class = iterator->component->class;
-
- /* Call user-defined destroy method */
- switch (comp_class->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- struct bt_component_class_source *source_class;
-
- source_class = container_of(comp_class, struct bt_component_class_source, parent);
-
- if (source_class->methods.iterator.finalize) {
- source_class->methods.iterator.finalize(
- bt_private_notification_iterator_from_notification_iterator(iterator));
- }
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- struct bt_component_class_filter *filter_class;
-
- filter_class = container_of(comp_class, struct bt_component_class_filter, parent);
-
- if (filter_class->methods.iterator.finalize) {
- filter_class->methods.iterator.finalize(
- bt_private_notification_iterator_from_notification_iterator(iterator));
- }
- break;
- }
- default:
- /* Unreachable */
- assert(0);
- }
-
- BT_PUT(iterator->current_notification);
- BT_PUT(iterator->component);
- g_free(iterator);
-}
-
-BT_HIDDEN
-struct bt_notification_iterator *bt_notification_iterator_create(
- struct bt_component *component)
-{
- enum bt_component_class_type type;
- struct bt_notification_iterator *iterator = NULL;
-
- if (!component) {
- goto end;
- }
-
- type = bt_component_get_class_type(component);
- switch (type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- break;
- default:
- goto end;
- }
-
- iterator = g_new0(struct bt_notification_iterator, 1);
- if (!iterator) {
- goto end;
- }
-
- iterator->component = bt_get(component);
- bt_object_init(iterator, bt_notification_iterator_destroy);
-end:
- return iterator;
-}
-
-BT_HIDDEN
-enum bt_notification_iterator_status bt_notification_iterator_validate(
- struct bt_notification_iterator *iterator)
-{
- enum bt_notification_iterator_status ret =
- BT_NOTIFICATION_ITERATOR_STATUS_OK;
-
- if (!iterator) {
- ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL;
- goto end;
- }
-end:
- return ret;
-}
-
-void *bt_private_notification_iterator_get_user_data(
- struct bt_private_notification_iterator *private_iterator)
-{
- struct bt_notification_iterator *iterator =
- bt_notification_iterator_from_private(private_iterator);
-
- return iterator ? iterator->user_data : NULL;
-}
-
-enum bt_notification_iterator_status
-bt_private_notification_iterator_set_user_data(
- struct bt_private_notification_iterator *private_iterator,
- void *data)
-{
- enum bt_notification_iterator_status ret =
- BT_NOTIFICATION_ITERATOR_STATUS_OK;
- struct bt_notification_iterator *iterator =
- bt_notification_iterator_from_private(private_iterator);
-
- if (!iterator) {
- ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL;
- goto end;
- }
-
- iterator->user_data = data;
-end:
- return ret;
-}
-
-struct bt_notification *bt_notification_iterator_get_notification(
- struct bt_notification_iterator *iterator)
-{
- struct bt_notification *notification = NULL;
-
- if (!iterator) {
- goto end;
- }
-
- notification = bt_get(iterator->current_notification);
-
-end:
- return notification;
-}
-
-enum bt_notification_iterator_status
-bt_notification_iterator_next(struct bt_notification_iterator *iterator)
-{
- struct bt_private_notification_iterator *priv_iterator =
- bt_private_notification_iterator_from_notification_iterator(iterator);
- bt_component_class_notification_iterator_next_method next_method = NULL;
- struct bt_notification_iterator_next_return next_return;
- enum bt_notification_iterator_status status =
- BT_NOTIFICATION_ITERATOR_STATUS_OK;
-
- if (!iterator) {
- status = BT_NOTIFICATION_ITERATOR_STATUS_INVAL;
- goto end;
- }
-
- assert(iterator->component);
- assert(iterator->component->class);
-
- switch (iterator->component->class->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- struct bt_component_class_source *source_class =
- container_of(iterator->component->class,
- struct bt_component_class_source, parent);
-
- assert(source_class->methods.iterator.next);
- next_method = source_class->methods.iterator.next;
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- struct bt_component_class_filter *filter_class =
- container_of(iterator->component->class,
- struct bt_component_class_filter, parent);
-
- assert(filter_class->methods.iterator.next);
- next_method = filter_class->methods.iterator.next;
- break;
- }
- default:
- assert(false);
- break;
- }
-
- assert(next_method);
- next_return = next_method(priv_iterator);
- if (next_return.status == BT_NOTIFICATION_ITERATOR_STATUS_OK) {
- if (!next_return.notification) {
- status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
- goto end;
- }
-
- BT_MOVE(iterator->current_notification,
- next_return.notification);
- bt_notification_freeze(iterator->current_notification);
- }
-
-end:
- return next_return.status;
-}
-
-struct bt_component *bt_notification_iterator_get_component(
- struct bt_notification_iterator *iterator)
-{
- return bt_get(iterator->component);
-}
-
-struct bt_private_component *
-bt_private_notification_iterator_get_private_component(
- struct bt_private_notification_iterator *private_iterator)
-{
- return bt_private_component_from_component(
- bt_notification_iterator_get_component(
- bt_notification_iterator_from_private(private_iterator)));
-}
-
-enum bt_notification_iterator_status bt_notification_iterator_seek_time(
- struct bt_notification_iterator *iterator,
- enum bt_notification_iterator_seek_origin seek_origin,
- int64_t time)
-{
- enum bt_notification_iterator_status ret =
- BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED;
- return ret;
-}
projects / babeltrace.git / blobdiff