X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-events-internal.h;h=0fc0b795de3e08179e98ada090ad963e0e1d6313;hb=621c07fc1b90c12ec997d539770da1937d11c450;hp=f93305ed057274e82dc479251a9637717438362d;hpb=d871c65bcb2e94c69e0a46e7e0dcd2dae2fce7af;p=lttng-ust.git

diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h
index f93305ed..0fc0b795 100644
--- a/liblttng-ust/ust-events-internal.h
+++ b/liblttng-ust/ust-events-internal.h
@@ -44,6 +44,39 @@ struct lttng_event_enabler {
 	struct lttng_ctx *ctx;
 };
 
+struct lttng_event_notifier_enabler {
+	struct lttng_enabler base;
+	struct cds_list_head node;	/* per-app list of event notifier enablers */
+	struct lttng_event_notifier_group *group; /* weak ref */
+	uint64_t user_token;		/* User-provided token */
+};
+
+enum lttng_ust_bytecode_node_type {
+	LTTNG_UST_BYTECODE_NODE_TYPE_FILTER,
+};
+
+struct lttng_ust_bytecode_node {
+	enum lttng_ust_bytecode_node_type type;
+	struct cds_list_head node;
+	struct lttng_enabler *enabler;
+	struct  {
+		uint32_t len;
+		uint32_t reloc_offset;
+		uint64_t seqnum;
+		char data[];
+	} bc;
+};
+
+struct lttng_ust_excluder_node {
+	struct cds_list_head node;
+	struct lttng_enabler *enabler;
+	/*
+	 * struct lttng_ust_event_exclusion had variable sized array,
+	 * must be last field.
+	 */
+	struct lttng_ust_event_exclusion excluder;
+};
+
 static inline
 struct lttng_enabler *lttng_event_enabler_as_enabler(
 		struct lttng_event_enabler *event_enabler)
@@ -51,6 +84,12 @@ struct lttng_enabler *lttng_event_enabler_as_enabler(
 	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.
@@ -89,8 +128,9 @@ int lttng_event_enabler_disable(struct lttng_event_enabler *enabler);
  * 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.
@@ -110,13 +150,95 @@ int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler,
 		struct lttng_ust_excluder_node *excluder);
 
 /*
- * Synchronize bytecodes for the enabler and the event.
+ * Synchronize bytecodes for the enabler and the instance (event or trigger).
  *
- * 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
+ * trigger 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 *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 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
-void lttng_event_enabler_link_bytecode(struct lttng_event *event,
-		struct lttng_event_enabler *enabler);
+int lttng_fix_pending_event_notifiers(void);
 
 #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */