struct lttng_ctx *ctx;
};
-struct lttng_ust_filter_bytecode_node {
+struct lttng_event_notifier_enabler {
+ struct lttng_enabler base;
+ uint64_t error_counter_index;
+ struct cds_list_head node; /* per-app list of event_notifier enablers */
+ struct cds_list_head capture_bytecode_head;
+ struct lttng_event_notifier_group *group; /* weak ref */
+ uint64_t user_token; /* User-provided token */
+ uint64_t num_captures;
+};
+
+enum lttng_ust_bytecode_node_type {
+ LTTNG_UST_BYTECODE_NODE_TYPE_FILTER,
+ LTTNG_UST_BYTECODE_NODE_TYPE_CAPTURE,
+};
+
+struct lttng_ust_bytecode_node {
+ enum lttng_ust_bytecode_node_type type;
struct cds_list_head node;
struct lttng_enabler *enabler;
- /*
- * struct lttng_ust_filter_bytecode has var. sized array, must
- * be last field.
- */
- struct lttng_ust_filter_bytecode bc;
+ struct {
+ uint32_t len;
+ uint32_t reloc_offset;
+ uint64_t seqnum;
+ char data[];
+ } bc;
};
struct lttng_ust_excluder_node {
return &event_enabler->base;
}
+static inline
+struct lttng_enabler *lttng_event_notifier_enabler_as_enabler(
+ struct lttng_event_notifier_enabler *event_notifier_enabler)
+{
+ return &event_notifier_enabler->base;
+}
/*
* Allocate and initialize a `struct lttng_event_enabler` object.
* events related to this enabler.
*/
LTTNG_HIDDEN
-int lttng_event_enabler_attach_bytecode(struct lttng_event_enabler *enabler,
- struct lttng_ust_filter_bytecode_node *bytecode);
+int lttng_event_enabler_attach_filter_bytecode(
+ struct lttng_event_enabler *enabler,
+ struct lttng_ust_bytecode_node **bytecode);
/*
* Attach an application context to an event enabler.
*/
LTTNG_HIDDEN
int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler,
- struct lttng_ust_excluder_node *excluder);
+ struct lttng_ust_excluder_node **excluder);
/*
- * Synchronize bytecodes for the enabler and the event.
+ * Synchronize bytecodes for the enabler and the instance (event or
+ * event_notifier).
*
- * This function goes over all bytecode programs of the event enabler to ensure
- * each is linked to the provided event.
+ * This function goes over all bytecode programs of the enabler (event or
+ * event_notifier enabler) to ensure each is linked to the provided instance.
*/
LTTNG_HIDDEN
void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
struct lttng_ctx **ctx,
- struct cds_list_head *bytecode_runtime_head,
- struct lttng_enabler *enabler);
+ struct cds_list_head *instance_bytecode_runtime_head,
+ struct cds_list_head *enabler_bytecode_runtime_head);
+
+/*
+ * Allocate and initialize a `struct lttng_event_notifier_group` object.
+ *
+ * On success, returns a `struct lttng_triggre_group`,
+ * on memory error, returns NULL.
+ */
+LTTNG_HIDDEN
+struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
+
+/*
+ * Destroy a `struct lttng_event_notifier_group` object.
+ */
+LTTNG_HIDDEN
+void lttng_event_notifier_group_destroy(
+ struct lttng_event_notifier_group *event_notifier_group);
+
+/*
+ * Allocate and initialize a `struct lttng_event_notifier_enabler` object.
+ *
+ * On success, returns a `struct lttng_event_notifier_enabler`,
+ * On memory error, returns NULL.
+ */
+LTTNG_HIDDEN
+struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
+ struct lttng_event_notifier_group *event_notifier_group,
+ enum lttng_enabler_format_type format_type,
+ struct lttng_ust_event_notifier *event_notifier_param);
+
+/*
+ * Destroy a `struct lttng_event_notifier_enabler` object.
+ */
+LTTNG_HIDDEN
+void lttng_event_notifier_enabler_destroy(
+ struct lttng_event_notifier_enabler *event_notifier_enabler);
+
+/*
+ * Enable a `struct lttng_event_notifier_enabler` object and all event
+ * notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_enable(
+ struct lttng_event_notifier_enabler *event_notifier_enabler);
+
+/*
+ * Disable a `struct lttng_event_notifier_enabler` object and all event
+ * notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_disable(
+ struct lttng_event_notifier_enabler *event_notifier_enabler);
+
+/*
+ * Attach filter bytecode program to `struct lttng_event_notifier_enabler` and
+ * all event notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_attach_filter_bytecode(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ struct lttng_ust_bytecode_node **bytecode);
+
+/*
+ * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and
+ * all event_notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_attach_capture_bytecode(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ struct lttng_ust_bytecode_node *bytecode);
+
+/*
+ * Attach exclusion list to `struct lttng_event_notifier_enabler` and all
+ * event notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_attach_exclusion(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ struct lttng_ust_excluder_node **excluder);
+
+LTTNG_HIDDEN
+void lttng_free_event_notifier_filter_runtime(
+ struct lttng_event_notifier *event_notifier);
+
+/*
+ * Connect the probe on all enablers matching this event description.
+ * Called on library load.
+ */
+LTTNG_HIDDEN
+int lttng_fix_pending_event_notifiers(void);
+
+LTTNG_HIDDEN
+struct lttng_counter *lttng_ust_counter_create(
+ const char *counter_transport_name,
+ size_t number_dimensions, const struct lttng_counter_dimension *dimensions);
#endif /* _LTTNG_UST_EVENTS_INTERNAL_H */