X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.hpp;fp=src%2Fbin%2Flttng-sessiond%2Fcmd.hpp;h=8727e741bca66a715237ed5e275c0000fc0d1a01;hp=0000000000000000000000000000000000000000;hb=c9e313bc594f40a86eed237dce222c0fc99c957f;hpb=4878de5c7deb512bbdac4fdfc498907efa06fb7c diff --git a/src/bin/lttng-sessiond/cmd.hpp b/src/bin/lttng-sessiond/cmd.hpp new file mode 100644 index 000000000..8727e741b --- /dev/null +++ b/src/bin/lttng-sessiond/cmd.hpp @@ -0,0 +1,181 @@ +/* + * Copyright (C) 2012 David Goulet + * + * SPDX-License-Identifier: GPL-2.0-only + * + */ + +#ifndef CMD_H +#define CMD_H + +#include "context.hpp" +#include "lttng-sessiond.hpp" +#include "lttng/tracker.h" +#include "session.hpp" +#include + +struct notification_thread_handle; +struct lttng_dynamic_buffer; + +/* + * A callback (and associated user data) that should be run after a command + * has been executed. No locks should be taken while executing this handler. + * + * The command's reply should not be sent until the handler has run and + * completed successfully. On failure, the handler's return code should + * be the only reply sent to the client. + */ +typedef enum lttng_error_code (*completion_handler_function)(void *); +struct cmd_completion_handler { + completion_handler_function run; + void *data; +}; + +/* + * Init the command subsystem. Must be called before using any of the functions + * above. This is called in the main() of the session daemon. + */ +void cmd_init(void); + +/* Session commands */ +enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock, + struct lttng_session_descriptor **return_descriptor); +int cmd_destroy_session(struct ltt_session *session, + struct notification_thread_handle *notification_thread_handle, + int *sock_fd); + +/* Channel commands */ +int cmd_disable_channel(struct ltt_session *session, + enum lttng_domain_type domain, char *channel_name); +int cmd_enable_channel(struct command_ctx *cmd_ctx, int sock, int wpipe); + +/* Process attribute tracker commands */ +enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy( + struct ltt_session *session, + enum lttng_domain_type domain, + enum lttng_process_attr process_attr, + enum lttng_tracking_policy *policy); +enum lttng_error_code cmd_process_attr_tracker_set_tracking_policy( + struct ltt_session *session, + enum lttng_domain_type domain, + enum lttng_process_attr process_attr, + enum lttng_tracking_policy policy); +enum lttng_error_code cmd_process_attr_tracker_inclusion_set_add_value( + struct ltt_session *session, + enum lttng_domain_type domain, + enum lttng_process_attr process_attr, + const struct process_attr_value *value); +enum lttng_error_code cmd_process_attr_tracker_inclusion_set_remove_value( + struct ltt_session *session, + enum lttng_domain_type domain, + enum lttng_process_attr process_attr, + const struct process_attr_value *value); +enum lttng_error_code cmd_process_attr_tracker_get_inclusion_set( + struct ltt_session *session, + enum lttng_domain_type domain, + enum lttng_process_attr process_attr, + struct lttng_process_attr_values **values); + +/* Event commands */ +int cmd_disable_event(struct command_ctx *cmd_ctx, + struct lttng_event *event, + char *filter_expression, + struct lttng_bytecode *filter, + struct lttng_event_exclusion *exclusion); +int cmd_add_context(struct command_ctx *cmd_ctx, + const struct lttng_event_context *event_context, + int kwpipe); +int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain, + char *channel_name, struct lttng_event *event, + struct lttng_bytecode *bytecode); +int cmd_enable_event(struct command_ctx *cmd_ctx, + struct lttng_event *event, + char *filter_expression, + struct lttng_event_exclusion *exclusion, + struct lttng_bytecode *bytecode, + int wpipe); + +/* Trace session action commands */ +int cmd_start_trace(struct ltt_session *session); +int cmd_stop_trace(struct ltt_session *session); + +/* Consumer commands */ +int cmd_register_consumer(struct ltt_session *session, + enum lttng_domain_type domain, + const char *sock_path, struct consumer_data *cdata); +int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri, + struct lttng_uri *uris); +int cmd_setup_relayd(struct ltt_session *session); + +/* Listing commands */ +ssize_t cmd_list_domains(struct ltt_session *session, + struct lttng_domain **domains); +enum lttng_error_code cmd_list_events(enum lttng_domain_type domain, + struct ltt_session *session, + char *channel_name, + struct lttng_payload *payload); +enum lttng_error_code cmd_list_channels(enum lttng_domain_type domain, + struct ltt_session *session, + struct lttng_payload *payload); +void cmd_list_lttng_sessions(struct lttng_session *sessions, + size_t session_count, uid_t uid, gid_t gid); +enum lttng_error_code cmd_list_tracepoint_fields(enum lttng_domain_type domain, + struct lttng_payload *reply); +enum lttng_error_code cmd_list_tracepoints(enum lttng_domain_type domain, + struct lttng_payload *reply_payload); +ssize_t cmd_snapshot_list_outputs(struct ltt_session *session, + struct lttng_snapshot_output **outputs); +enum lttng_error_code cmd_list_syscalls( + struct lttng_payload *reply_payload); + +int cmd_data_pending(struct ltt_session *session); + +/* Snapshot */ +int cmd_snapshot_add_output(struct ltt_session *session, + const struct lttng_snapshot_output *output, uint32_t *id); +int cmd_snapshot_del_output(struct ltt_session *session, + const struct lttng_snapshot_output *output); +int cmd_snapshot_record(struct ltt_session *session, + const struct lttng_snapshot_output *output, int wait); + +int cmd_set_session_shm_path(struct ltt_session *session, + const char *shm_path); +int cmd_regenerate_metadata(struct ltt_session *session); +int cmd_regenerate_statedump(struct ltt_session *session); + +enum lttng_error_code cmd_register_trigger( + const struct lttng_credentials *cmd_creds, + struct lttng_trigger *trigger, + bool is_anonymous_trigger, + struct notification_thread_handle *notification_thread_handle, + struct lttng_trigger **return_trigger); +enum lttng_error_code cmd_unregister_trigger( + const struct lttng_credentials *cmd_creds, + const struct lttng_trigger *trigger, + struct notification_thread_handle *notification_thread_handle); + +enum lttng_error_code cmd_list_triggers(struct command_ctx *cmd_ctx, + struct notification_thread_handle *notification_thread_handle, + struct lttng_triggers **return_triggers); +enum lttng_error_code cmd_execute_error_query(const struct lttng_credentials *cmd_creds, + const struct lttng_error_query *query, + struct lttng_error_query_results **_results, + struct notification_thread_handle *notification_thread); + +int cmd_rotate_session(struct ltt_session *session, + struct lttng_rotate_session_return *rotate_return, + bool quiet_rotation, + enum lttng_trace_chunk_command_type command); +int cmd_rotate_get_info(struct ltt_session *session, + struct lttng_rotation_get_info_return *info_return, + uint64_t rotate_id); +int cmd_rotation_set_schedule(struct ltt_session *session, + bool activate, enum lttng_rotation_schedule_type schedule_type, + uint64_t value, + struct notification_thread_handle *notification_thread_handle); + +const struct cmd_completion_handler *cmd_pop_completion_handler(void); +int start_kernel_session(struct ltt_kernel_session *ksess); +int stop_kernel_session(struct ltt_kernel_session *ksess); + +#endif /* CMD_H */