+/*
+ * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
+ *
+ * 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 <common/tracker.hpp>
+
+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 */
projects / lttng-tools.git / blobdiff