lttng: destroy: ensure a cmd_error_code is returned by the command

[lttng-tools.git] / include / lttng / notification / notification-internal.hpp

/*
 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */

#ifndef LTTNG_NOTIFICATION_INTERNAL_H
#define LTTNG_NOTIFICATION_INTERNAL_H

#include <common/macros.hpp>
#include <common/make-unique-wrapper.hpp>

#include <lttng/notification/notification.h>

#include <memory>
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>

struct lttng_payload;
struct lttng_payload_view;

struct lttng_notification {
	using uptr = std::unique_ptr<
		lttng_notification,
		lttng::details::create_unique_class<lttng_notification,
						    lttng_notification_destroy>::deleter>;

	struct lttng_trigger *trigger;
	struct lttng_evaluation *evaluation;
};

struct lttng_notification_comm {
	/* Size of the payload following this field. */
	uint32_t length;
	/* Trigger and evaluation objects follow. */
	char payload[];
} LTTNG_PACKED;

struct lttng_notification *lttng_notification_create(struct lttng_trigger *trigger,
						     struct lttng_evaluation *evaluation);

int lttng_notification_serialize(const struct lttng_notification *notification,
				 struct lttng_payload *payload);

ssize_t lttng_notification_create_from_payload(struct lttng_payload_view *view,
					       struct lttng_notification **notification);

const struct lttng_condition *
lttng_notification_get_const_condition(const struct lttng_notification *notification);
const struct lttng_evaluation *
lttng_notification_get_const_evaluation(const struct lttng_notification *notification);

const struct lttng_trigger *
lttng_notification_get_const_trigger(const struct lttng_notification *notification);

#endif /* LTTNG_NOTIFICATION_INTERNAL_H */