X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-events-internal.h;h=1a94ba0ea3acf4d16136fb9c18843535e312aac4;hb=68bb7559b0041c38158c9ed0528d91d655e7eb6c;hp=1305a61f6c5925c1b654995771a4f09901b74e90;hpb=8665f6a432525473b9dcba296394e68a8f49d9f2;p=lttng-ust.git

diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h
index 1305a61f..1a94ba0e 100644
--- a/liblttng-ust/ust-events-internal.h
+++ b/liblttng-ust/ust-events-internal.h
@@ -84,6 +84,100 @@ struct lttng_ust_excluder_node {
 	struct lttng_ust_event_exclusion excluder;
 };
 
+/* Data structures used by the tracer. */
+
+struct tp_list_entry {
+	struct lttng_ust_tracepoint_iter tp;
+	struct cds_list_head head;
+};
+
+struct lttng_ust_tracepoint_list {
+	struct tp_list_entry *iter;
+	struct cds_list_head head;
+};
+
+struct tp_field_list_entry {
+	struct lttng_ust_field_iter field;
+	struct cds_list_head head;
+};
+
+struct lttng_ust_field_list {
+	struct tp_field_list_entry *iter;
+	struct cds_list_head head;
+};
+
+/*
+ * Objects in a linked-list of enablers, owned by an event or event_notifier.
+ * This is used because an event (or a event_notifier) can be enabled by more
+ * than one enabler and we want a quick way to iterate over all enablers of an
+ * object.
+ *
+ * For example, event rules "my_app:a*" and "my_app:ab*" will both match the
+ * event with the name "my_app:abc".
+ */
+struct lttng_enabler_ref {
+	struct cds_list_head node;		/* enabler ref list */
+	struct lttng_enabler *ref;		/* backward ref */
+};
+
+#define LTTNG_COUNTER_DIMENSION_MAX	8
+struct lttng_counter_dimension {
+	uint64_t size;
+	uint64_t underflow_index;
+	uint64_t overflow_index;
+	uint8_t has_underflow;
+	uint8_t has_overflow;
+};
+
+struct lttng_counter {
+	int objd;
+	struct lttng_event_notifier_group *event_notifier_group;    /* owner */
+	struct lttng_counter_transport *transport;
+	struct lib_counter *counter;
+	struct lttng_counter_ops *ops;
+};
+
+struct lttng_event_notifier_group {
+	int objd;
+	void *owner;
+	int notification_fd;
+	struct cds_list_head node;		/* Event notifier group handle list */
+	struct cds_list_head enablers_head;
+	struct cds_list_head event_notifiers_head;	/* list of event_notifiers */
+	struct lttng_ust_event_notifier_ht event_notifiers_ht; /* hashtable of event_notifiers */
+	struct lttng_ctx *ctx;			/* contexts for filters. */
+
+	struct lttng_counter *error_counter;
+	size_t error_counter_len;
+};
+
+struct lttng_transport {
+	char *name;
+	struct cds_list_head node;
+	struct lttng_channel_ops ops;
+	const struct lttng_ust_lib_ring_buffer_config *client_config;
+};
+
+struct lttng_counter_transport {
+	char *name;
+	struct cds_list_head node;
+	struct lttng_counter_ops ops;
+	const struct lib_counter_config *client_config;
+};
+
+struct lttng_ust_event_private {
+	struct lttng_event *pub;	/* Public event interface */
+
+	const struct lttng_event_desc *desc;
+	enum lttng_ust_instrumentation instrumentation;
+	struct cds_list_head node;		/* Event list in session */
+
+	/* Backward references: list of lttng_enabler_ref (ref to enablers) */
+	struct cds_list_head enablers_ref_head;
+	struct cds_hlist_node hlist;	/* session ht of events */
+	int registered;			/* has reg'd tracepoint probe */
+};
+
 static inline
 struct lttng_enabler *lttng_event_enabler_as_enabler(
 		struct lttng_event_enabler *event_enabler)
@@ -247,6 +341,9 @@ 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_filter_runtime(struct lttng_event *event);
+
 LTTNG_HIDDEN
 void lttng_free_event_notifier_filter_runtime(
 		struct lttng_event_notifier *event_notifier);
@@ -296,4 +393,72 @@ void lttng_perf_counter_exit(void)
 }
 #endif /* #else #ifdef HAVE_PERF_EVENT */
 
+LTTNG_HIDDEN
+int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list);
+LTTNG_HIDDEN
+void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list);
+
+LTTNG_HIDDEN
+int lttng_probes_get_field_list(struct lttng_ust_field_list *list);
+LTTNG_HIDDEN
+void lttng_probes_prune_field_list(struct lttng_ust_field_list *list);
+
+LTTNG_HIDDEN
+struct lttng_ust_tracepoint_iter *
+	lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list);
+LTTNG_HIDDEN
+struct lttng_ust_field_iter *
+	lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list);
+
+LTTNG_HIDDEN
+struct lttng_session *lttng_session_create(void);
+LTTNG_HIDDEN
+int lttng_session_enable(struct lttng_session *session);
+LTTNG_HIDDEN
+int lttng_session_disable(struct lttng_session *session);
+LTTNG_HIDDEN
+int lttng_session_statedump(struct lttng_session *session);
+LTTNG_HIDDEN
+void lttng_session_destroy(struct lttng_session *session);
+
+LTTNG_HIDDEN
+struct cds_list_head *lttng_get_sessions(void);
+
+LTTNG_HIDDEN
+void lttng_handle_pending_statedump(void *owner);
+
+LTTNG_HIDDEN
+struct lttng_channel *lttng_channel_create(struct lttng_session *session,
+				       const char *transport_name,
+				       void *buf_addr,
+				       size_t subbuf_size, size_t num_subbuf,
+				       unsigned int switch_timer_interval,
+				       unsigned int read_timer_interval,
+				       int **shm_fd, int **wait_fd,
+				       uint64_t **memory_map_size,
+				       struct lttng_channel *chan_priv_init);
+
+LTTNG_HIDDEN
+int lttng_channel_enable(struct lttng_channel *channel);
+LTTNG_HIDDEN
+int lttng_channel_disable(struct lttng_channel *channel);
+
+LTTNG_HIDDEN
+void lttng_transport_register(struct lttng_transport *transport);
+LTTNG_HIDDEN
+void lttng_transport_unregister(struct lttng_transport *transport);
+
+LTTNG_HIDDEN
+void lttng_probe_provider_unregister_events(struct lttng_probe_desc *desc);
+
+LTTNG_HIDDEN
+int lttng_fix_pending_events(void);
+
+LTTNG_HIDDEN
+struct cds_list_head *lttng_get_probe_list_head(void);
+
+LTTNG_HIDDEN
+struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
+		const struct lttng_enum_desc *enum_desc);
+
 #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */