[lttng-tools.git] / src / bin / lttng-sessiond / notification-thread-commands.h

/*
 * 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_QUIT,
};

struct notification_thread_command {
	struct cds_list_head cmd_list_node;

	enum notification_thread_command_type type;
	union {
		/* Register/Unregister trigger. */
		struct lttng_trigger *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;
			struct lttng_trace_archive_location *location;
		} session_rotation;
	} parameters;

	/* 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);

enum lttng_error_code notification_thread_command_unregister_trigger(
		struct notification_thread_handle *handle,
		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);

void notification_thread_command_quit(
		struct notification_thread_handle *handle);

#endif /* NOTIFICATION_THREAD_COMMANDS_H */
Commit	Line	Data
ab0ee2ca	1	/*
ab5be9fa	2	* Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
ab0ee2ca	3	*
ab5be9fa	4	* SPDX-License-Identifier: GPL-2.0-only
ab0ee2ca	5	*
ab0ee2ca JG	6	*/
	7
	8	#ifndef NOTIFICATION_THREAD_COMMANDS_H
	9	#define NOTIFICATION_THREAD_COMMANDS_H
	10
	11	#include <lttng/domain.h>
	12	#include <lttng/lttng-error.h>
	13	#include <urcu/rculfhash.h>
	14	#include "notification-thread.h"
8abe313a JG	15	#include "notification-thread-internal.h"
8abe313a JG	16	#include "notification-thread-events.h"
8ada111f	17	#include <common/waiter.h>
0ab399e0	18	#include <stdbool.h>
ab0ee2ca JG	19
	20	struct notification_thread_data;
	21	struct lttng_trigger;
	22
	23	enum notification_thread_command_type {
	24	NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER,
	25	NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER,
	26	NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL,
	27	NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL,
731c1b12 JG	28	NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING,
731c1b12 JG	29	NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED,
ab0ee2ca JG	30	NOTIFICATION_COMMAND_TYPE_QUIT,
	31	};
	32
ab0ee2ca JG	33	struct notification_thread_command {
	34	struct cds_list_head cmd_list_node;
	35
	36	enum notification_thread_command_type type;
	37	union {
	38	/* Register/Unregister trigger. */
	39	struct lttng_trigger *trigger;
	40	/* Add channel. */
8abe313a JG	41	struct {
	42	struct {
	43	const char *name;
	44	uid_t uid;
	45	gid_t gid;
	46	} session;
	47	struct {
	48	const char *name;
	49	enum lttng_domain_type domain;
	50	uint64_t key;
	51	uint64_t capacity;
	52	} channel;
	53	} add_channel;
ab0ee2ca JG	54	/* Remove channel. */
	55	struct {
	56	uint64_t key;
	57	enum lttng_domain_type domain;
	58	} remove_channel;
731c1b12 JG	59	struct {
	60	const char *session_name;
	61	uid_t uid;
	62	gid_t gid;
	63	uint64_t trace_archive_chunk_id;
	64	struct lttng_trace_archive_location *location;
	65	} session_rotation;
ab0ee2ca JG	66	} parameters;
ab0ee2ca JG	67
8ada111f JG	68	/* lttng_waiter on which to wait for command reply (optional). */
8ada111f JG	69	struct lttng_waiter reply_waiter;
ab0ee2ca	70	enum lttng_error_code reply_code;
0ab399e0	71	bool is_async;
ab0ee2ca JG	72	};
	73
	74	enum lttng_error_code notification_thread_command_register_trigger(
	75	struct notification_thread_handle *handle,
	76	struct lttng_trigger *trigger);
	77
	78	enum lttng_error_code notification_thread_command_unregister_trigger(
	79	struct notification_thread_handle *handle,
	80	struct lttng_trigger *trigger);
	81
	82	enum lttng_error_code notification_thread_command_add_channel(
	83	struct notification_thread_handle *handle,
731c1b12	84	char *session_name, uid_t session_uid, gid_t session_gid,
ab0ee2ca JG	85	char *channel_name, uint64_t key,
	86	enum lttng_domain_type domain, uint64_t capacity);
	87
	88	enum lttng_error_code notification_thread_command_remove_channel(
	89	struct notification_thread_handle *handle,
	90	uint64_t key, enum lttng_domain_type domain);
	91
731c1b12 JG	92	enum lttng_error_code notification_thread_command_session_rotation_ongoing(
	93	struct notification_thread_handle *handle,
	94	const char *session_name, uid_t session_uid, gid_t session_gid,
	95	uint64_t trace_archive_chunk_id);
	96
	97	/* Ownership of location is transferred. */
	98	enum lttng_error_code notification_thread_command_session_rotation_completed(
	99	struct notification_thread_handle *handle,
	100	const char *session_name, uid_t session_uid, gid_t session_gid,
	101	uint64_t trace_archive_chunk_id,
	102	struct lttng_trace_archive_location *location);
	103
ab0ee2ca JG	104	void notification_thread_command_quit(
	105	struct notification_thread_handle *handle);
	106
	107	#endif /* NOTIFICATION_THREAD_COMMANDS_H */