+int lttng_trigger_generate_name(struct lttng_trigger *trigger,
+ uint64_t unique_id);
+
+LTTNG_HIDDEN
+bool lttng_trigger_is_equal(
+ const struct lttng_trigger *a, const struct lttng_trigger *b);
+
+LTTNG_HIDDEN
+void lttng_trigger_get(struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_put(struct lttng_trigger *trigger);
+
+/*
+ * Allocate a new set of triggers.
+ * The returned object must be freed via lttng_triggers_destroy.
+ */
+LTTNG_HIDDEN
+struct lttng_triggers *lttng_triggers_create(void);
+
+/*
+ * Return the a pointer to a mutable element at index "index" of an
+ * lttng_triggers set.
+ *
+ * This differs from the public `lttng_triggers_get_at_index` in that
+ * the returned pointer to a mutable trigger.
+ *
+ * The ownership of the trigger set element is NOT transfered.
+ * The returned object can NOT be freed via lttng_trigger_destroy.
+ */
+LTTNG_HIDDEN
+struct lttng_trigger *lttng_triggers_borrow_mutable_at_index(
+ const struct lttng_triggers *triggers, unsigned int index);
+
+/*
+ * Add a trigger to the triggers set.
+ *
+ * A reference to the added trigger is acquired on behalf of the trigger set
+ * on success.
+ */
+LTTNG_HIDDEN
+int lttng_triggers_add(
+ struct lttng_triggers *triggers, struct lttng_trigger *trigger);
+
+/*
+ * Serialize a trigger set to an lttng_payload object.
+ * Return LTTNG_OK on success, negative lttng error code on error.
+ */
+LTTNG_HIDDEN
+int lttng_triggers_serialize(const struct lttng_triggers *triggers,
+ struct lttng_payload *payload);
+
+LTTNG_HIDDEN
+ssize_t lttng_triggers_create_from_payload(struct lttng_payload_view *view,
+ struct lttng_triggers **triggers);
+
+LTTNG_HIDDEN
+const struct lttng_credentials *lttng_trigger_get_credentials(
+ const struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_credentials(struct lttng_trigger *trigger,
+ const struct lttng_credentials *creds);
+
+/*
+ * Return the type of any underlying domain restriction. If no particular
+ * requirement is present, returns LTTNG_DOMAIN_NONE.
+ */
+LTTNG_HIDDEN
+enum lttng_domain_type lttng_trigger_get_underlying_domain_type_restriction(
+ const struct lttng_trigger *trigger);
+
+/*
+ * Generate any bytecode related to the trigger.
+ * On success LTTNG_OK. On error, returns lttng_error code.
+ */
+LTTNG_HIDDEN
+enum lttng_error_code lttng_trigger_generate_bytecode(
+ 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);
+
+/*
+ * A given trigger needs a tracer notifier if
+ * it has an event-rule condition,
+ * AND
+ * it has one or more sessiond-execution action.
+ */
+LTTNG_HIDDEN
+bool lttng_trigger_needs_tracer_notifier(const struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_as_registered(struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_as_unregistered(struct lttng_trigger *trigger);
+
+/*
+ * The trigger must be locked before calling lttng_trigger_is_registered.
+ *
+ * The lock is necessary since a trigger can be unregistered at any time.
+ *
+ * Manipulations requiring that the trigger be registered must always acquire
+ * the trigger lock for the duration of the manipulation using
+ * `lttng_trigger_lock` and `lttng_trigger_unlock`.
+ */
+LTTNG_HIDDEN
+bool lttng_trigger_is_registered(struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_lock(struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+void lttng_trigger_unlock(struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+enum lttng_trigger_status lttng_trigger_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);