Fix: sessiond: list-triggers: don't return internal triggers

[lttng-tools.git] / include / lttng / trigger / trigger-internal.h

diff --git a/include/lttng/trigger/trigger-internal.h b/include/lttng/trigger/trigger-internal.h
index d917ffa011d13a4db5486cde3f27c46b99177552..80cf0cb56023260ef3236110af266edf3a319b8a 100644 (file)
--- a/include/lttng/trigger/trigger-internal.h
+++ b/include/lttng/trigger/trigger-internal.h
@@ -53,6 +53,23 @@ struct lttng_trigger {
         */
        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.
@@ -118,6 +135,12 @@ LTTNG_HIDDEN
 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);
 
@@ -165,6 +188,12 @@ LTTNG_HIDDEN
 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.