#ifndef NOTIFICATION_THREAD_H
#define NOTIFICATION_THREAD_H
-#include <urcu/list.h>
-#include <urcu.h>
-#include <urcu/rculfhash.h>
-#include <lttng/trigger/trigger.h>
-#include <common/pipe.h>
+#include "action-executor.h"
+#include "thread.h"
#include <common/compat/poll.h>
#include <common/hashtable/hashtable.h>
+#include <common/pipe.h>
+#include <lttng/trigger/trigger.h>
+#include <lttng/domain.h>
#include <pthread.h>
#include <semaphore.h>
-#include "thread.h"
-
+#include <urcu.h>
+#include <urcu/list.h>
+#include <urcu/rculfhash.h>
typedef uint64_t notification_client_id;
+struct notification_event_trigger_source_element {
+ int fd;
+ enum lttng_domain_type domain;
+ struct cds_list_head node;
+};
+
+struct notification_trigger_tokens_ht_element {
+ uint64_t token;
+ struct lttng_trigger *trigger;
+ struct cds_lfht_node node;
+ /* call_rcu delayed reclaim. */
+ struct rcu_head rcu_node;
+};
+
struct notification_thread_handle {
/*
* Queue of struct notification command.
int ust64_consumer;
int kernel_consumer;
} channel_monitoring_pipes;
+ /*
+ * Read side of pipes used to reveice event trigger generetated by
+ * registered applications
+ */
+ struct {
+ /* List of notification_event_trigger_source_element */
+ struct cds_list_head list;
+ pthread_mutex_t lock;
+ } event_trigger_sources;
/* Used to wait for the launch of the notification thread. */
sem_t ready;
};
* channels through their struct channel_info (ref-counting is used).
*
* - triggers_ht:
- * associates a condition to a struct lttng_trigger_ht_element.
+ * associates a trigger to a struct lttng_trigger_ht_element.
* The hash table holds the ownership of the
* lttng_trigger_ht_elements along with the triggers themselves.
+ * - triggers_by_name_uid_ht:
+ * associates a trigger (name, uid) tuple to
+ * a struct lttng_trigger_ht_element.
+ * The hash table does not hold any ownership and is used strictly
+ * for lookup on registration.
*
* The thread reacts to the following internal events:
* 1) creation of a tracing channel,
* notification_trigger_clients_ht,
* - add trigger to channel_triggers_ht (if applicable),
* - add trigger to session_triggers_ht (if applicable),
+ * - add trigger to triggers_by_name_uid_ht
* - add trigger to triggers_ht
* - evaluate the trigger's condition right away to react if that condition
* is true from the beginning.
* - remove the trigger from the notification_trigger_clients_ht,
* - remove trigger from channel_triggers_ht (if applicable),
* - remove trigger from session_triggers_ht (if applicable),
+ * - remove trigger from triggers_by_name_uid_ht
* - remove trigger from triggers_ht
*
* 5) Reception of a channel monitor sample from the consumer daemon
struct cds_lfht *channels_ht;
struct cds_lfht *sessions_ht;
struct cds_lfht *triggers_ht;
+ struct cds_lfht *triggers_by_name_uid_ht;
+ struct cds_lfht *trigger_tokens_ht;
+ struct {
+ uint64_t token_generator;
+ uint64_t name_offset;
+ } trigger_id;
notification_client_id next_notification_client_id;
+ struct action_executor *executor;
};
/* notification_thread_data takes ownership of the channel monitor pipes. */
struct notification_thread_handle *notification_thread_handle_create(
struct lttng_pipe *ust32_channel_monitor_pipe,
struct lttng_pipe *ust64_channel_monitor_pipe,
- struct lttng_pipe *kernel_channel_monitor_pipe);
+ struct lttng_pipe *kernel_channel_monitor_pipe,
+ int kernel_notification_monitor_fd);
void notification_thread_handle_destroy(
struct notification_thread_handle *handle);
struct lttng_thread *launch_notification_thread(