trackers: support tracking feature

[lttng-tools.git] / src / bin / lttng-sessiond / kernel.h

diff --git a/src/bin/lttng-sessiond/kernel.h b/src/bin/lttng-sessiond/kernel.h
index 3739bc9998abf59479b0a8af9d6db2fda79eccd9..cf91cab1be8535749ec982df1bb7640db101b84b 100644 (file)
--- a/src/bin/lttng-sessiond/kernel.h
+++ b/src/bin/lttng-sessiond/kernel.h
@@ -30,23 +30,25 @@
  * dynamic reallocation is performed.
  */
 #define KERNEL_EVENT_INIT_LIST_SIZE 64
+#define KERNEL_TRACKER_IDS_INIT_LIST_SIZE 64
 
 int kernel_add_channel_context(struct ltt_kernel_channel *chan,
                struct ltt_kernel_context *ctx);
-int kernel_create_session(struct ltt_session *session, int tracer_fd);
+int kernel_create_session(struct ltt_session *session);
 int kernel_create_channel(struct ltt_kernel_session *session,
                struct lttng_channel *chan);
-int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel);
+int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel,
+               char *filter_expression, struct lttng_filter_bytecode *filter);
 int kernel_disable_channel(struct ltt_kernel_channel *chan);
 int kernel_disable_event(struct ltt_kernel_event *event);
 int kernel_enable_event(struct ltt_kernel_event *event);
 int kernel_enable_channel(struct ltt_kernel_channel *chan);
-int kernel_enable_syscall(const char *syscall_name,
-               struct ltt_kernel_channel *channel);
-int kernel_disable_syscall(const char *syscall_name,
-               struct ltt_kernel_channel *channel);
-int kernel_track_pid(struct ltt_kernel_session *session, int pid);
-int kernel_untrack_pid(struct ltt_kernel_session *session, int pid);
+int kernel_track_id(enum lttng_tracker_type tracker_type,
+               struct ltt_kernel_session *session,
+               const struct lttng_tracker_id *id);
+int kernel_untrack_id(enum lttng_tracker_type tracker_type,
+               struct ltt_kernel_session *session,
+               const struct lttng_tracker_id *id);
 int kernel_open_metadata(struct ltt_kernel_session *session);
 int kernel_open_metadata_stream(struct ltt_kernel_session *session);
 int kernel_open_channel_stream(struct ltt_kernel_channel *channel);
@@ -54,17 +56,32 @@ int kernel_flush_buffer(struct ltt_kernel_channel *channel);
 int kernel_metadata_flush_buffer(int fd);
 int kernel_start_session(struct ltt_kernel_session *session);
 int kernel_stop_session(struct ltt_kernel_session *session);
-ssize_t kernel_list_events(int tracer_fd, struct lttng_event **event_list);
-void kernel_wait_quiescent(int fd);
-int kernel_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
-int kernel_validate_version(int tracer_fd);
+ssize_t kernel_list_events(struct lttng_event **event_list);
+void kernel_wait_quiescent(void);
+int kernel_validate_version(struct lttng_kernel_tracer_version *kernel_tracer_version,
+               struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version);
 void kernel_destroy_session(struct ltt_kernel_session *ksess);
+void kernel_free_session(struct ltt_kernel_session *ksess);
 void kernel_destroy_channel(struct ltt_kernel_channel *kchan);
-int kernel_snapshot_record(struct ltt_kernel_session *ksess,
-               struct snapshot_output *output, int wait,
+enum lttng_error_code kernel_snapshot_record(
+               struct ltt_kernel_session *ksess,
+               const struct consumer_output *output, int wait,
                uint64_t nb_packets_per_stream);
 int kernel_syscall_mask(int chan_fd, char **syscall_mask, uint32_t *nr_bits);
+enum lttng_error_code kernel_rotate_session(struct ltt_session *session);
+enum lttng_error_code kernel_clear_session(struct ltt_session *session);
 
 int init_kernel_workarounds(void);
+ssize_t kernel_list_tracker_ids(enum lttng_tracker_type tracker_type,
+               struct ltt_kernel_session *session,
+               struct lttng_tracker_id **_ids);
+int kernel_supports_ring_buffer_snapshot_sample_positions(void);
+int kernel_supports_ring_buffer_packet_sequence_number(void);
+int init_kernel_tracer(void);
+void cleanup_kernel_tracer(void);
+bool kernel_tracer_is_initialized(void);
+
+enum lttng_error_code kernel_create_channel_subdirectories(
+               const struct ltt_kernel_session *ksess);
 
 #endif /* _LTT_KERNEL_CTL_H */