/* 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;
-};
-
-struct ust_pending_probe;
-struct lttng_event;
-
/*
* Bytecode interpreter return value masks.
*/
struct lttng_ctx **pctx;
};
-/*
- * 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 */
-};
-
/*
* lttng_event structure is referred to by the tracing fast path. It
* must be kept small.
int tstate:1; /* Transient enable state */
};
-#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_dimension;
struct lttng_counter_ops {
struct lib_counter *(*counter_create)(size_t nr_dimensions,
struct lttng_ctx *ctx; /* contexts for filters. */
};
-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_session *lttng_session_create(void);
-int lttng_session_enable(struct lttng_session *session);
-int lttng_session_disable(struct lttng_session *session);
-int lttng_session_statedump(struct lttng_session *session);
-void lttng_session_destroy(struct lttng_session *session);
-
-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);
-
-int lttng_channel_enable(struct lttng_channel *channel);
-int lttng_channel_disable(struct lttng_channel *channel);
-
-void lttng_transport_register(struct lttng_transport *transport);
-void lttng_transport_unregister(struct lttng_transport *transport);
-
int lttng_probe_register(struct lttng_probe_desc *desc);
void lttng_probe_unregister(struct lttng_probe_desc *desc);
-void lttng_probe_provider_unregister_events(struct lttng_probe_desc *desc);
-int lttng_fix_pending_events(void);
-int lttng_probes_init(void);
-void lttng_probes_exit(void);
/*
* Can be used by applications that change their procname to clear the ust cached value.
struct lttng_transport *lttng_transport_find(const char *name);
-int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list);
-void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list);
-struct lttng_ust_tracepoint_iter *
- lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list);
-int lttng_probes_get_field_list(struct lttng_ust_field_list *list);
-void lttng_probes_prune_field_list(struct lttng_ust_field_list *list);
-struct lttng_ust_field_iter *
- lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list);
-
-void lttng_free_event_filter_runtime(struct lttng_event *event);
-
-struct cds_list_head *lttng_get_probe_list_head(void);
int lttng_session_active(void);
-typedef int (*t_statedump_func_ptr)(struct lttng_session *session);
-void lttng_handle_pending_statedump(void *owner);
-struct cds_list_head *_lttng_get_sessions(void);
-
-struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
- const struct lttng_enum_desc *enum_desc);
-
void lttng_ust_dl_update(void *ip);
#ifdef __cplusplus
projects / lttng-ust.git / blobdiff