X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fkernel.h;h=c9b17d260b2123031181f612e6b335e7b0d1cecb;hp=e9024a83e975290b53b9f624d8e8cc8060984f0d;hb=2463b7879c00298daa79744cdaae82ac061a4ed8;hpb=d5a1b7aa06b4c924b1cd30623758343c74ecab5c diff --git a/src/bin/lttng-sessiond/kernel.h b/src/bin/lttng-sessiond/kernel.h index e9024a83e..c9b17d260 100644 --- a/src/bin/lttng-sessiond/kernel.h +++ b/src/bin/lttng-sessiond/kernel.h @@ -1,23 +1,15 @@ /* - * Copyright (C) 2011 - David Goulet + * Copyright (C) 2011 David Goulet * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2 only, - * as published by the Free Software Foundation. + * SPDX-License-Identifier: GPL-2.0-only * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTT_KERNEL_CTL_H #define _LTT_KERNEL_CTL_H +#include "lttng/lttng-error.h" +#include "lttng/tracker.h" #include "session.h" #include "snapshot.h" #include "trace-kernel.h" @@ -30,21 +22,33 @@ * dynamic reallocation is performed. */ #define KERNEL_EVENT_INIT_LIST_SIZE 64 -#define KERNEL_TRACKER_PIDS_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, - char *filter_expression, struct lttng_filter_bytecode *filter); + char *filter_expression, struct lttng_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_track_pid(struct ltt_kernel_session *session, int pid); -int kernel_untrack_pid(struct ltt_kernel_session *session, int pid); +enum lttng_error_code kernel_process_attr_tracker_set_tracking_policy( + struct ltt_kernel_session *session, + enum lttng_process_attr process_attr, + enum lttng_tracking_policy policy); +enum lttng_error_code kernel_process_attr_tracker_inclusion_set_add_value( + struct ltt_kernel_session *session, + enum lttng_process_attr process_attr, + const struct process_attr_value *value); +enum lttng_error_code kernel_process_attr_tracker_inclusion_set_remove_value( + struct ltt_kernel_session *session, + enum lttng_process_attr process_attr, + const struct process_attr_value *value); +const struct process_attr_tracker *kernel_get_process_attr_tracker( + struct ltt_kernel_session *session, + enum lttng_process_attr process_attr); 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); @@ -52,22 +56,43 @@ 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_validate_version(int tracer_fd, - struct lttng_kernel_tracer_version *kernel_tracer_version, +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_pids(struct ltt_kernel_session *session, - int **_pids); -int kernel_supports_ring_buffer_snapshot_sample_positions(int tracer_fd); +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); + +enum lttng_error_code kernel_create_trigger_group_notification_fd( + int *trigger_group_notification_fd); +enum lttng_error_code kernel_destroy_trigger_group_notification_fd( + int trigger_group_notification_fd); + +enum lttng_error_code kernel_register_trigger(struct lttng_trigger *trigger, const struct lttng_credentials *cmd_creds); +enum lttng_error_code kernel_unregister_trigger(struct lttng_trigger *trigger); +enum lttng_error_code kernel_create_trigger_group_error_counter( + int *trigger_group_error_counter_fd, size_t nb_bucket); +enum lttng_error_code kernel_trigger_update_error_count( + struct lttng_trigger *trigger); + +int kernel_get_notification_fd(void); #endif /* _LTT_KERNEL_CTL_H */