struct lttng_payload;
struct lttng_payload_view;
+struct mi_writer;
+struct mi_lttng_error_query_callbacks;
struct lttng_trigger {
/* Reference counting is only exposed to internal users. */
*/
bool registered;
+ /*
+ * A "hidden" trigger is a trigger that is not externally listed.
+ * It is used to hide triggers that are used internally by the session
+ * daemon so that they can't be listed nor unregistered by external
+ * clients.
+ *
+ * This is a property that can only be set internally by the session
+ * daemon. As such, it is not serialized nor set by a
+ * "create_from_buffer" constructor.
+ *
+ * The hidden property is preserved by copies.
+ *
+ * Note that notifications originating from an "hidden" trigger will not
+ * be sent to clients that are not within the session daemon's process.
+ */
+ bool is_hidden;
+
/*
* The lock is used to protect against concurrent trigger execution and
* trigger removal.
bool lttng_trigger_is_equal(
const struct lttng_trigger *a, const struct lttng_trigger *b);
+LTTNG_HIDDEN
+bool lttng_trigger_is_hidden(const struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_hidden(struct lttng_trigger *trigger);
+
LTTNG_HIDDEN
void lttng_trigger_get(struct lttng_trigger *trigger);
LTTNG_HIDDEN
void lttng_trigger_put(struct lttng_trigger *trigger);
+/*
+ * Serialize a trigger to a mi_writer.
+ * Return LTTNG_OK in success, other enum lttng_error_code on error.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_trigger_mi_serialize(const struct lttng_trigger *trigger,
+ struct mi_writer *writer,
+ const struct mi_lttng_error_query_callbacks
+ *error_query_callbacks);
+
/*
* Allocate a new set of triggers.
* The returned object must be freed via lttng_triggers_destroy.
int lttng_triggers_add(
struct lttng_triggers *triggers, struct lttng_trigger *trigger);
+/*
+ * Remove all triggers marked as hidden from the provided trigger set.
+ */
+LTTNG_HIDDEN
+int lttng_triggers_remove_hidden_triggers(struct lttng_triggers *triggers);
+
/*
* Serialize a trigger set to an lttng_payload object.
* Return LTTNG_OK on success, negative lttng error code on error.
ssize_t lttng_triggers_create_from_payload(struct lttng_payload_view *view,
struct lttng_triggers **triggers);
+/*
+ * Serialize a trigger set to a mi_writer.
+ * Return LTTNG_OK in success, other enum lttng_error_code on error.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_triggers_mi_serialize(const struct lttng_triggers *triggers,
+ struct mi_writer *writer,
+ const struct mi_lttng_error_query_callbacks
+ *error_query_callbacks);
+
LTTNG_HIDDEN
const struct lttng_credentials *lttng_trigger_get_credentials(
const struct lttng_trigger *trigger);
struct lttng_trigger *trigger,
const struct lttng_credentials *creds);
+/*
+ * Note that the trigger object is not locked by "copy" as it is const and
+ * used with a number of 'const' triggers. If the trigger could be shared at
+ * the moment of the copy, it is the caller's responsability to lock it for
+ * the duration of the copy.
+ */
LTTNG_HIDDEN
struct lttng_trigger *lttng_trigger_copy(const struct lttng_trigger *trigger);
const struct lttng_trigger *trigger,
struct lttng_error_query_results *results);
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_condition_add_error_results(
+ const struct lttng_trigger *trigger,
+ struct lttng_error_query_results *results);
+
LTTNG_HIDDEN
enum lttng_trigger_status lttng_trigger_add_action_error_query_results(
struct lttng_trigger *trigger,
struct lttng_error_query_results *results);
+/*
+ * Set the trigger name.
+ *
+ * A name is optional.
+ * A name will be assigned on trigger registration if no name is set.
+ *
+ * The name is copied.
+ *
+ * Return LTTNG_TRIGGER_STATUS_OK on success, LTTNG_TRIGGER_STATUS_INVALID
+ * if invalid parameters are passed.
+ */
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_set_name(
+ struct lttng_trigger *trigger, const char *name);
+
#endif /* LTTNG_TRIGGER_INTERNAL_H */