+++ /dev/null
-/*
- * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#ifndef NOTIFICATION_THREAD_COMMANDS_H
-#define NOTIFICATION_THREAD_COMMANDS_H
-
-#include <lttng/domain.h>
-#include <lttng/lttng-error.h>
-#include <urcu/rculfhash.h>
-#include "notification-thread.h"
-#include "notification-thread-internal.h"
-#include "notification-thread-events.h"
-#include <common/waiter.h>
-#include <stdbool.h>
-
-struct notification_thread_data;
-struct lttng_trigger;
-
-enum notification_thread_command_type {
- NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER,
- NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER,
- NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL,
- NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL,
- NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING,
- NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED,
- NOTIFICATION_COMMAND_TYPE_ADD_TRACER_EVENT_SOURCE,
- NOTIFICATION_COMMAND_TYPE_REMOVE_TRACER_EVENT_SOURCE,
- NOTIFICATION_COMMAND_TYPE_LIST_TRIGGERS,
- NOTIFICATION_COMMAND_TYPE_QUIT,
- NOTIFICATION_COMMAND_TYPE_CLIENT_COMMUNICATION_UPDATE,
- NOTIFICATION_COMMAND_TYPE_GET_TRIGGER,
-};
-
-struct notification_thread_command {
- struct cds_list_head cmd_list_node;
-
- enum notification_thread_command_type type;
- union {
- /* Register trigger. */
- struct {
- struct lttng_trigger *trigger;
- bool is_trigger_anonymous;
- } register_trigger;
- /* Unregister trigger. */
- struct {
- const struct lttng_trigger *trigger;
- } unregister_trigger;
- /* Add channel. */
- struct {
- struct {
- const char *name;
- uid_t uid;
- gid_t gid;
- } session;
- struct {
- const char *name;
- enum lttng_domain_type domain;
- uint64_t key;
- uint64_t capacity;
- } channel;
- } add_channel;
- /* Remove channel. */
- struct {
- uint64_t key;
- enum lttng_domain_type domain;
- } remove_channel;
- struct {
- const char *session_name;
- uid_t uid;
- gid_t gid;
- uint64_t trace_archive_chunk_id;
- /* Weak reference. */
- struct lttng_trace_archive_location *location;
- } session_rotation;
- /* Add/Remove tracer event source fd. */
- struct {
- int tracer_event_source_fd;
- enum lttng_domain_type domain;
- } tracer_event_source;
- /* List triggers. */
- struct {
- /* Credentials of the requesting user. */
- uid_t uid;
- } list_triggers;
- /* Client communication update. */
- struct {
- notification_client_id id;
- enum client_transmission_status status;
- } client_communication_update;
-
- struct {
- const struct lttng_trigger *trigger;
- } get_trigger;
-
- } parameters;
-
- union {
- struct {
- struct lttng_triggers *triggers;
- } list_triggers;
- struct {
- struct lttng_trigger *trigger;
- } get_trigger;
- } reply;
- /* lttng_waiter on which to wait for command reply (optional). */
- struct lttng_waiter reply_waiter;
- enum lttng_error_code reply_code;
- bool is_async;
-};
-
-enum lttng_error_code notification_thread_command_register_trigger(
- struct notification_thread_handle *handle,
- struct lttng_trigger *trigger,
- bool is_anonymous_trigger);
-
-enum lttng_error_code notification_thread_command_unregister_trigger(
- struct notification_thread_handle *handle,
- const struct lttng_trigger *trigger);
-
-enum lttng_error_code notification_thread_command_add_channel(
- struct notification_thread_handle *handle,
- char *session_name, uid_t session_uid, gid_t session_gid,
- char *channel_name, uint64_t key,
- enum lttng_domain_type domain, uint64_t capacity);
-
-enum lttng_error_code notification_thread_command_remove_channel(
- struct notification_thread_handle *handle,
- uint64_t key, enum lttng_domain_type domain);
-
-enum lttng_error_code notification_thread_command_session_rotation_ongoing(
- struct notification_thread_handle *handle,
- const char *session_name, uid_t session_uid, gid_t session_gid,
- uint64_t trace_archive_chunk_id);
-
-/* Ownership of location is transferred. */
-enum lttng_error_code notification_thread_command_session_rotation_completed(
- struct notification_thread_handle *handle,
- const char *session_name, uid_t session_uid, gid_t session_gid,
- uint64_t trace_archive_chunk_id,
- struct lttng_trace_archive_location *location);
-
-/*
- * Return the set of triggers visible to a given client.
- *
- * The trigger objects contained in the set are the actual trigger instances
- * used by the notification subsystem (i.e. not a copy). Given that the command
- * is only used to serialize the triggers, this is fine: the properties that
- * are serialized are immutable over the lifetime of the triggers.
- *
- * Moreover, the lifetime of the trigger instances is protected through
- * reference counting (references are held by the trigger set).
- *
- * The caller has the exclusive ownership of the returned trigger set.
- */
-enum lttng_error_code notification_thread_command_list_triggers(
- struct notification_thread_handle *handle,
- uid_t client_uid,
- struct lttng_triggers **triggers);
-
-/*
- * The ownership of trigger_event_application_pipe is _not_ transferred to
- * the notification thread.
- */
-enum lttng_error_code notification_thread_command_add_tracer_event_source(
- struct notification_thread_handle *handle,
- int tracer_event_source_fd,
- enum lttng_domain_type domain);
-
-enum lttng_error_code notification_thread_command_remove_tracer_event_source(
- struct notification_thread_handle *handle,
- int tracer_event_source_fd);
-
-void notification_thread_command_quit(
- struct notification_thread_handle *handle);
-
-enum lttng_error_code notification_thread_command_get_trigger(
- struct notification_thread_handle *handle,
- const struct lttng_trigger *trigger,
- struct lttng_trigger **real_trigger);
-
-#endif /* NOTIFICATION_THREAD_COMMANDS_H */
projects / lttng-tools.git / blobdiff