[lttng-ust.git] / libmsgpack / msgpack.h

/*
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com>
 */

#ifndef _LTTNG_UST_MSGPACK_H
#define _LTTNG_UST_MSGPACK_H

#include <stddef.h>
#ifdef __KERNEL__
#include <linux/types.h>
#else /* __KERNEL__ */
#include <stdint.h>
#include "helper.h"
#endif /* __KERNEL__ */

struct lttng_msgpack_writer {
	uint8_t *buffer;
	uint8_t *write_pos;
	const uint8_t *end_write_pos;
	uint8_t array_nesting;
	uint8_t map_nesting;
};

LTTNG_HIDDEN
void lttng_msgpack_writer_init(
		struct lttng_msgpack_writer *writer,
		uint8_t *buffer, size_t size);

LTTNG_HIDDEN
void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer);

LTTNG_HIDDEN
int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer);
LTTNG_HIDDEN
int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer);
LTTNG_HIDDEN
int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer);
LTTNG_HIDDEN
int lttng_msgpack_write_unsigned_integer(
		struct lttng_msgpack_writer *writer, uint64_t value);
LTTNG_HIDDEN
int lttng_msgpack_write_signed_integer(
		struct lttng_msgpack_writer *writer, int64_t value);
LTTNG_HIDDEN
int lttng_msgpack_write_double(struct lttng_msgpack_writer *writer, double value);
LTTNG_HIDDEN
int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer,
		const char *value);
LTTNG_HIDDEN
int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);
LTTNG_HIDDEN
int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);
LTTNG_HIDDEN
int lttng_msgpack_begin_array(
		struct lttng_msgpack_writer *writer, size_t count);
LTTNG_HIDDEN
int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer);

#endif /* _LTTNG_UST_MSGPACK_H */
Commit	Line	Data
	1	/*
	2	* SPDX-License-Identifier: LGPL-2.1-only
	3	*
	4	* Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com>
	5	*/
	6
	7	#ifndef _LTTNG_UST_MSGPACK_H
	8	#define _LTTNG_UST_MSGPACK_H
	9
	10	#include <stddef.h>
	11	#ifdef __KERNEL__
	12	#include <linux/types.h>
	13	#else /* __KERNEL__ */
	14	#include <stdint.h>
	15	#include "helper.h"
	16	#endif /* __KERNEL__ */
	17
	18	struct lttng_msgpack_writer {
	19	uint8_t *buffer;
	20	uint8_t *write_pos;
	21	const uint8_t *end_write_pos;
	22	uint8_t array_nesting;
	23	uint8_t map_nesting;
	24	};
	25
	26	LTTNG_HIDDEN
	27	void lttng_msgpack_writer_init(
	28	struct lttng_msgpack_writer *writer,
	29	uint8_t *buffer, size_t size);
	30
	31	LTTNG_HIDDEN
	32	void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer);
	33
	34	LTTNG_HIDDEN
	35	int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer);
	36	LTTNG_HIDDEN
	37	int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer);
	38	LTTNG_HIDDEN
	39	int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer);
	40	LTTNG_HIDDEN
	41	int lttng_msgpack_write_unsigned_integer(
	42	struct lttng_msgpack_writer *writer, uint64_t value);
	43	LTTNG_HIDDEN
	44	int lttng_msgpack_write_signed_integer(
	45	struct lttng_msgpack_writer *writer, int64_t value);
	46	LTTNG_HIDDEN
	47	int lttng_msgpack_write_double(struct lttng_msgpack_writer *writer, double value);
	48	LTTNG_HIDDEN
	49	int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer,
	50	const char *value);
	51	LTTNG_HIDDEN
	52	int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);
	53	LTTNG_HIDDEN
	54	int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);
	55	LTTNG_HIDDEN
	56	int lttng_msgpack_begin_array(
	57	struct lttng_msgpack_writer *writer, size_t count);
	58	LTTNG_HIDDEN
	59	int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer);
	60
	61	#endif /* _LTTNG_UST_MSGPACK_H */