sessiond: implement EXECUTE_ERROR_QUERY command

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

diff --git a/include/lttng/action/action-internal.h b/include/lttng/action/action-internal.h
index 12029e42f5d9ade44dde8f68eef6399eb2a48719..55e34163b1cb14749bd6451c51605cf766da5d51 100644 (file)
--- a/include/lttng/action/action-internal.h
+++ b/include/lttng/action/action-internal.h
@@ -8,12 +8,13 @@
 #ifndef LTTNG_ACTION_INTERNAL_H
 #define LTTNG_ACTION_INTERNAL_H
 
-#include <lttng/action/action.h>
-#include <common/macros.h>
 #include <common/buffer-view.h>
 #include <common/dynamic-buffer.h>
+#include <common/macros.h>
 #include <common/payload-view.h>
 #include <common/payload.h>
+#include <lttng/lttng.h>
+#include <pthread.h>
 #include <stdbool.h>
 #include <sys/types.h>
 #include <urcu/ref.h>
@@ -31,6 +32,9 @@ typedef ssize_t (*action_create_from_payload_cb)(
                struct lttng_action **action);
 typedef const struct lttng_rate_policy *(*action_get_rate_policy_cb)(
                const struct lttng_action *action);
+typedef enum lttng_action_status (*action_add_error_query_results_cb)(
+               const struct lttng_action *action,
+               struct lttng_error_query_results *results);
 
 struct lttng_action {
        struct urcu_ref ref;
@@ -40,6 +44,7 @@ struct lttng_action {
        action_equal_cb equal;
        action_destroy_cb destroy;
        action_get_rate_policy_cb get_rate_policy;
+       action_add_error_query_results_cb add_error_query_results;
 
        /* Internal use only. */
 
@@ -52,8 +57,10 @@ struct lttng_action {
        uint64_t execution_counter;
        /*
         * The number of time the action execution failed.
+        * An unsigned long is used to use a type which makes atomic
+        * operations possible.
         */
-       uint64_t execution_failure_counter;
+       unsigned long execution_failure_counter;
 };
 
 struct lttng_action_comm {
@@ -68,7 +75,8 @@ void lttng_action_init(struct lttng_action *action,
                action_serialize_cb serialize,
                action_equal_cb equal,
                action_destroy_cb destroy,
-               action_get_rate_policy_cb get_rate_policy);
+               action_get_rate_policy_cb get_rate_policy,
+               action_add_error_query_results_cb add_error_query_results);
 
 LTTNG_HIDDEN
 bool lttng_action_validate(struct lttng_action *action);
@@ -106,4 +114,19 @@ void lttng_action_increase_execution_failure_count(struct lttng_action *action);
 LTTNG_HIDDEN
 bool lttng_action_should_execute(const struct lttng_action *action);
 
+LTTNG_HIDDEN
+enum lttng_action_status lttng_action_add_error_query_results(
+               const struct lttng_action *action,
+               struct lttng_error_query_results *results);
+
+/*
+ * For use by the various lttng_action implementation. Implements the default
+ * behavior to the generic error "execution failure counter" that all actions
+ * (except group, which passes-through) provide.
+ */
+LTTNG_HIDDEN
+enum lttng_action_status lttng_action_generic_add_error_query_results(
+               const struct lttng_action *action,
+               struct lttng_error_query_results *results);
+
 #endif /* LTTNG_ACTION_INTERNAL_H */