trigger: generate and add tracer token on registration

[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 4b031137c6473153fc005321bb4a226c4c51fb3f..df69f3d110a2c49fe970f80883f74f018cea0c37 100644 (file)
--- a/include/lttng/trigger/trigger-internal.h
+++ b/include/lttng/trigger/trigger-internal.h
@@ -26,13 +26,31 @@ struct lttng_trigger {
 
        struct lttng_condition *condition;
        struct lttng_action *action;
-       LTTNG_OPTIONAL(struct lttng_credentials) creds;
+       char *name;
+       /* For now only the uid portion of the credentials is used. */
+       struct lttng_credentials creds;
+       /*
+        * Internal use only.
+        * The unique token passed to the tracer to identify an event-rule
+        * notification.
+        */
+       LTTNG_OPTIONAL(uint64_t) tracer_token;
 };
 
 struct lttng_trigger_comm {
-       /* length excludes its own length. */
+       /*
+        * Credentials, only the uid portion is used for now.
+        * Used as an override when desired by the root user.
+        */
+       uint64_t uid;
+       /*
+        * Length of the variable length payload (name, condition, and
+        * an action).
+        */
        uint32_t length;
-       /* A condition and action object follow. */
+       /* Includes '\0' terminator. */
+       uint32_t name_length;
+       /* A null-terminated name, a condition, and an action follow. */
        char payload[];
 } LTTNG_PACKED;
 
@@ -55,6 +73,25 @@ const struct lttng_action *lttng_trigger_get_const_action(
 LTTNG_HIDDEN
 bool lttng_trigger_validate(struct lttng_trigger *trigger);
 
+LTTNG_HIDDEN
+int lttng_trigger_assign_name(
+               struct lttng_trigger *dst, const struct lttng_trigger *src);
+
+LTTNG_HIDDEN
+void lttng_trigger_set_tracer_token(
+               struct lttng_trigger *trigger, uint64_t token);
+
+LTTNG_HIDDEN
+uint64_t lttng_trigger_get_tracer_token(const struct lttng_trigger *trigger);
+
+LTTNG_HIDDEN
+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);
 
@@ -66,8 +103,7 @@ const struct lttng_credentials *lttng_trigger_get_credentials(
                const struct lttng_trigger *trigger);
 
 LTTNG_HIDDEN
-void lttng_trigger_set_credentials(
-               struct lttng_trigger *trigger,
+void lttng_trigger_set_credentials(struct lttng_trigger *trigger,
                const struct lttng_credentials *creds);
 
 #endif /* LTTNG_TRIGGER_INTERNAL_H */