/*
- * Babeltrace Plug-in Event Notification
- *
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
* Copyright 2016 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
#include <babeltrace/lib-logging-internal.h>
#include <babeltrace/compiler-internal.h>
-#include <babeltrace/ctf-ir/event.h>
-#include <babeltrace/ctf-ir/event-internal.h>
-#include <babeltrace/ctf-ir/event-class-internal.h>
-#include <babeltrace/ctf-ir/stream-class-internal.h>
-#include <babeltrace/ctf-ir/trace.h>
-#include <babeltrace/graph/clock-class-priority-map.h>
-#include <babeltrace/graph/clock-class-priority-map-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 <babeltrace/assert-internal.h>
#include <babeltrace/assert-pre-internal.h>
+#include <babeltrace/object.h>
#include <stdbool.h>
#include <inttypes.h>
-static
-void bt_notification_event_destroy(struct bt_object *obj)
-{
- struct bt_notification_event *notification =
- (struct bt_notification_event *) obj;
-
- BT_LOGD("Destroying event notification: addr=%p", notification);
- BT_LOGD_STR("Recycling event.");
- bt_event_recycle(notification->event);
- notification->event = NULL;
- BT_LOGD_STR("Putting clock class priority map.");
- BT_PUT(notification->cc_prio_map);
- g_free(notification);
-}
-
BT_ASSERT_PRE_FUNC
static inline bool event_class_has_trace(struct bt_event_class *event_class)
{
stream_class = bt_event_class_borrow_stream_class(event_class);
BT_ASSERT(stream_class);
- return bt_stream_class_borrow_trace(stream_class) != NULL;
+ 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_clock_class_priority_map *cc_prio_map)
+ 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");
-
- if (cc_prio_map) {
- /* Function's reference, released at the end */
- bt_get(cc_prio_map);
- } else {
- cc_prio_map = bt_clock_class_priority_map_create();
- if (!cc_prio_map) {
- BT_LOGE_STR("Cannot create empty clock class priority map.");
- goto error;
- }
- }
-
- BT_ASSERT(cc_prio_map);
- BT_LOGD("Creating event notification object: "
- "event-class-addr=%p, "
- "event-class-name=\"%s\", event-class-id=%" PRId64 ", "
- "cc-prio-map-addr=%p",
- event_class,
- bt_event_class_get_name(event_class),
- bt_event_class_get_id(event_class), cc_prio_map);
-
BT_ASSERT_PRE(event_class_has_trace(event_class),
"Event class is not part of a trace: %!+E", event_class);
- notification = g_new0(struct bt_notification_event, 1);
- if (!notification) {
- BT_LOGE_STR("Failed to allocate one event notification.");
+ 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;
}
- bt_notification_init(¬ification->parent, BT_NOTIFICATION_TYPE_EVENT,
- bt_notification_event_destroy);
- notification->event = bt_event_create(event_class, packet);
- if (!notification->event) {
- BT_LIB_LOGE("Cannot create event from event class: "
- "%![event-class-]+E", event_class);
+ /*
+ * 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;
}
- notification->cc_prio_map = bt_get(cc_prio_map);
- BT_LOGD_STR("Freezing event notification's clock class priority map.");
- bt_clock_class_priority_map_freeze(notification->cc_prio_map);
- BT_LOGD("Created event notification object: "
- "event-addr=%p, event-class-addr=%p, "
- "event-class-name=\"%s\", event-class-id=%" PRId64 ", "
- "cc-prio-map-addr=%p, notif-addr=%p",
- notification->event, event_class,
- bt_event_class_get_name(event_class),
- bt_event_class_get_id(event_class), cc_prio_map,
- notification);
+ 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_PUT(notification);
+ BT_ASSERT(!notification);
+ bt_event_destroy(event);
end:
- bt_put(cc_prio_map);
- return ¬ification->parent;
+ return (void *) notification;
}
-struct bt_event *bt_notification_event_borrow_event(
- struct bt_notification *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;
return event_notification->event;
}
-extern struct bt_clock_class_priority_map *
-bt_notification_event_borrow_clock_class_priority_map(
+struct bt_event *bt_notification_event_borrow_event(
struct bt_notification *notification)
{
- struct bt_notification_event *event_notification;
+ return borrow_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->cc_prio_map;
+const struct bt_event *bt_notification_event_borrow_event_const(
+ const struct bt_notification *notification)
+{
+ return borrow_event((void *) notification);
}
projects / babeltrace.git / blobdiff