docs: Add supported versions and fix-backport policy

[lttng-tools.git] / include / lttng / condition / evaluation-internal.hpp

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

#ifndef LTTNG_EVALUATION_INTERNAL_H
#define LTTNG_EVALUATION_INTERNAL_H

#include <common/macros.hpp>

#include <lttng/condition/condition.h>
#include <lttng/condition/evaluation.h>

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

struct lttng_payload;
struct lttng_payload_view;

using evaluation_destroy_cb = void (*)(struct lttng_evaluation *);
using evaluation_serialize_cb = int (*)(const struct lttng_evaluation *, struct lttng_payload *);

struct lttng_evaluation_comm {
	/* enum lttng_condition_type type */
	int8_t type;
	char payload[];
} LTTNG_PACKED;

struct lttng_evaluation {
	enum lttng_condition_type type;
	evaluation_serialize_cb serialize;
	evaluation_destroy_cb destroy;
};

void lttng_evaluation_init(struct lttng_evaluation *evaluation, enum lttng_condition_type type);

ssize_t lttng_evaluation_create_from_payload(const struct lttng_condition *condition,
					     struct lttng_payload_view *view,
					     struct lttng_evaluation **evaluation);

int lttng_evaluation_serialize(const struct lttng_evaluation *evaluation,
			       struct lttng_payload *payload);

#endif /* LTTNG_EVALUATION_INTERNAL_H */