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 2cef67d077d3cf47bd08104c75faacb9ea31a200..df69f3d110a2c49fe970f80883f74f018cea0c37 100644 (file)
--- a/include/lttng/trigger/trigger-internal.h
+++ b/include/lttng/trigger/trigger-internal.h
@@ -9,23 +9,48 @@
 #define LTTNG_TRIGGER_INTERNAL_H
 
 #include <lttng/trigger/trigger.h>
+#include <common/credentials.h>
 #include <common/macros.h>
+#include <common/optional.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <sys/types.h>
+#include <urcu/ref.h>
 
 struct lttng_payload;
 struct lttng_payload_view;
 
 struct lttng_trigger {
+       /* Reference counting is only exposed to internal users. */
+       struct urcu_ref ref;
+
        struct lttng_condition *condition;
        struct lttng_action *action;
+       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;
 
@@ -48,4 +73,37 @@ 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);
+
+LTTNG_HIDDEN
+void lttng_trigger_put(struct lttng_trigger *trigger);
+
+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);
+
 #endif /* LTTNG_TRIGGER_INTERNAL_H */