+++ /dev/null
-/*
- * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
- * Copyright 2016 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.
- */
-
-#define BT_LOG_TAG "NOTIF-EVENT"
-#include <babeltrace/lib-logging-internal.h>
-
-#include <babeltrace/assert-internal.h>
-#include <babeltrace/assert-pre-internal.h>
-#include <babeltrace/compiler-internal.h>
-#include <babeltrace/object-internal.h>
-#include <babeltrace/trace-ir/event.h>
-#include <babeltrace/trace-ir/event-internal.h>
-#include <babeltrace/trace-ir/event-class-internal.h>
-#include <babeltrace/trace-ir/stream-class-internal.h>
-#include <babeltrace/trace-ir/trace.h>
-#include <babeltrace/graph/graph-internal.h>
-#include <babeltrace/graph/notification-event-const.h>
-#include <babeltrace/graph/notification-event.h>
-#include <babeltrace/graph/notification-event-internal.h>
-#include <babeltrace/types.h>
-#include <stdbool.h>
-#include <inttypes.h>
-
-BT_ASSERT_PRE_FUNC
-static inline bool event_class_has_trace(struct bt_event_class *event_class)
-{
- struct bt_stream_class *stream_class;
-
- stream_class = bt_event_class_borrow_stream_class(event_class);
- BT_ASSERT(stream_class);
- return bt_stream_class_borrow_trace_class(stream_class) != NULL;
-}
-
-BT_HIDDEN
-struct bt_notification *bt_notification_event_new(
- struct bt_graph *graph)
-{
- struct bt_notification_event *notification = NULL;
-
- notification = g_new0(struct bt_notification_event, 1);
- if (!notification) {
- BT_LOGE_STR("Failed to allocate one event notification.");
- goto error;
- }
-
- bt_notification_init(¬ification->parent, BT_NOTIFICATION_TYPE_EVENT,
- (bt_object_release_func) bt_notification_event_recycle, graph);
- goto end;
-
-error:
- BT_OBJECT_PUT_REF_AND_RESET(notification);
-
-end:
- return (void *) notification;
-}
-
-struct bt_notification *bt_notification_event_create(
- struct bt_self_notification_iterator *self_notif_iter,
- struct bt_event_class *event_class,
- struct bt_packet *packet)
-{
- struct bt_self_component_port_input_notification_iterator *notif_iter =
- (void *) self_notif_iter;
- struct bt_notification_event *notification = NULL;
- struct bt_event *event;
-
- BT_ASSERT_PRE_NON_NULL(notif_iter, "Notification iterator");
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(packet, "Packet");
- BT_ASSERT_PRE(event_class_has_trace(event_class),
- "Event class is not part of a trace: %!+E", event_class);
- BT_LIB_LOGD("Creating event notification object: %![ec-]+E",
- event_class);
- event = bt_event_create(event_class, packet);
- if (unlikely(!event)) {
- BT_LIB_LOGE("Cannot create event from event class: "
- "%![ec-]+E", event_class);
- goto error;
- }
-
- /*
- * Create notification from pool _after_ we have everything
- * (in this case, a valid event object) so that we never have an
- * error condition with a non-NULL notification object.
- * Otherwise:
- *
- * * We cannot recycle the notification on error because
- * bt_notification_event_recycle() expects a complete
- * notification (and the event or clock class priority map
- * object could be unset).
- *
- * * We cannot destroy the notification because we would need
- * to notify the graph (pool owner) so that it removes the
- * notification from its notification array.
- */
- notification = (void *) bt_notification_create_from_pool(
- ¬if_iter->graph->event_notif_pool, notif_iter->graph);
- if (unlikely(!notification)) {
- /* bt_notification_create_from_pool() logs errors */
- goto error;
- }
-
- BT_ASSERT(!notification->event);
- notification->event = event;
- bt_packet_set_is_frozen(packet, true);
- bt_event_class_freeze(event_class);
- BT_LIB_LOGD("Created event notification object: "
- "%![notif-]+n, %![event-]+e", notification, event);
- goto end;
-
-error:
- BT_ASSERT(!notification);
- bt_event_destroy(event);
-
-end:
- return (void *) notification;
-}
-
-BT_HIDDEN
-void bt_notification_event_destroy(struct bt_notification *notif)
-{
- struct bt_notification_event *event_notif = (void *) notif;
-
- BT_LIB_LOGD("Destroying event notification: %!+n", notif);
-
- if (event_notif->event) {
- BT_LIB_LOGD("Recycling event: %!+e", event_notif->event);
- bt_event_recycle(event_notif->event);
- event_notif->event = NULL;
- }
-
- g_free(notif);
-}
-
-BT_HIDDEN
-void bt_notification_event_recycle(struct bt_notification *notif)
-{
- struct bt_notification_event *event_notif = (void *) notif;
- struct bt_graph *graph;
-
- BT_ASSERT(event_notif);
-
- if (unlikely(!notif->graph)) {
- bt_notification_event_destroy(notif);
- return;
- }
-
- BT_LIB_LOGD("Recycling event notification: %![notif-]+n, %![event-]+e",
- notif, event_notif->event);
- bt_notification_reset(notif);
- BT_ASSERT(event_notif->event);
- bt_event_recycle(event_notif->event);
- event_notif->event = NULL;
- graph = notif->graph;
- notif->graph = NULL;
- bt_object_pool_recycle_object(&graph->event_notif_pool, notif);
-}
-
-static inline
-struct bt_event *borrow_event(struct bt_notification *notification)
-{
- struct bt_notification_event *event_notification;
-
- BT_ASSERT_PRE_NON_NULL(notification, "Notification");
- BT_ASSERT_PRE_NOTIF_IS_TYPE(notification, BT_NOTIFICATION_TYPE_EVENT);
- event_notification = container_of(notification,
- struct bt_notification_event, parent);
- return event_notification->event;
-}
-
-struct bt_event *bt_notification_event_borrow_event(
- struct bt_notification *notification)
-{
- return borrow_event(notification);
-}
-
-const struct bt_event *bt_notification_event_borrow_event_const(
- const struct bt_notification *notification)
-{
- return borrow_event((void *) notification);
-}
projects / babeltrace.git / blobdiff