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 c58787ceb2cfb506a7280e02ccf6b6425783ea19..80cf0cb56023260ef3236110af266edf3a319b8a 100644 (file)
--- a/include/lttng/trigger/trigger-internal.h
+++ b/include/lttng/trigger/trigger-internal.h
@@ -21,6 +21,8 @@
 
 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. */
@@ -51,6 +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.
@@ -116,12 +135,28 @@ 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);
 
 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.
@@ -153,6 +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.
@@ -165,6 +206,16 @@ LTTNG_HIDDEN
 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);
@@ -237,6 +288,11 @@ 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_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,