Make captured field values available to event rule cond. evaluation

[lttng-tools.git] / include / lttng / condition / event-rule-internal.h

diff --git a/include/lttng/condition/event-rule-internal.h b/include/lttng/condition/event-rule-internal.h
index a4e02c50919aabe76843a43474fde019db58f32e..6dd663d7c498637aac9e3f9b082458badc5b8455 100644 (file)
--- a/include/lttng/condition/event-rule-internal.h
+++ b/include/lttng/condition/event-rule-internal.h
@@ -12,22 +12,37 @@
 #include <common/buffer-view.h>
 #include <common/macros.h>
 #include <lttng/condition/evaluation-internal.h>
+#include <common/dynamic-array.h>
+#include <lttng/event-field-value.h>
+
+struct lttng_capture_descriptor {
+       struct lttng_event_expr *event_expression;
+       struct lttng_bytecode *bytecode;
+};
 
 struct lttng_condition_event_rule {
        struct lttng_condition parent;
        struct lttng_event_rule *rule;
-};
 
-struct lttng_condition_event_rule_comm {
-       /* length excludes the header's length. */
-       uint32_t event_rule_length;
-       /* Event rule follows. */
-       char payload[];
-} LTTNG_PACKED;
+       /* Array of `struct lttng_capture_descriptor *`. */
+       struct lttng_dynamic_pointer_array capture_descriptors;
+};
 
 struct lttng_evaluation_event_rule {
        struct lttng_evaluation parent;
        char *name;
+
+       /* MessagePack-encoded captured event field values. */
+       struct lttng_dynamic_buffer capture_payload;
+
+       /*
+        * The content of this array event field value is the decoded
+        * version of `capture_payload` above.
+        *
+        * This is a cache: it's not serialized/deserialized in
+        * communications from/to the library and the session daemon.
+        */
+       struct lttng_event_field_value *captured_values;
 };
 
 struct lttng_evaluation_event_rule_comm {
@@ -37,7 +52,6 @@ struct lttng_evaluation_event_rule_comm {
        char payload[];
 } LTTNG_PACKED;
 
-
 LTTNG_HIDDEN
 ssize_t lttng_condition_event_rule_create_from_payload(
                struct lttng_payload_view *view,
@@ -51,11 +65,25 @@ lttng_condition_event_rule_borrow_rule_mutable(
 
 LTTNG_HIDDEN
 struct lttng_evaluation *lttng_evaluation_event_rule_create(
-               const char* trigger_name);
+               const struct lttng_condition_event_rule *condition,
+               const char* trigger_name,
+               const char *capture_payload, size_t capture_payload_size,
+               bool decode_capture_payload);
 
 LTTNG_HIDDEN
 ssize_t lttng_evaluation_event_rule_create_from_payload(
+               const struct lttng_condition_event_rule *condition,
                struct lttng_payload_view *view,
                struct lttng_evaluation **_evaluation);
 
+LTTNG_HIDDEN
+enum lttng_error_code
+lttng_condition_event_rule_generate_capture_descriptor_bytecode(
+               struct lttng_condition *condition);
+
+LTTNG_HIDDEN
+const struct lttng_bytecode *
+lttng_condition_event_rule_get_capture_bytecode_at_index(
+               const struct lttng_condition *condition, unsigned int index);
+
 #endif /* LTTNG_CONDITION_EVENT_RULE_INTERNAL_H */