[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>
#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;
};

__attribute__((visibility("hidden")))
void lttng_msgpack_writer_init(
		struct lttng_msgpack_writer *writer,
		uint8_t *buffer, size_t size);

__attribute__((visibility("hidden")))
void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_unsigned_integer(
		struct lttng_msgpack_writer *writer, uint64_t value);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_signed_integer(
		struct lttng_msgpack_writer *writer, int64_t value);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_double(struct lttng_msgpack_writer *writer, double value);

__attribute__((visibility("hidden")))
int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer,
		const char *value);

__attribute__((visibility("hidden")))
int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);

__attribute__((visibility("hidden")))
int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);

__attribute__((visibility("hidden")))
int lttng_msgpack_begin_array(
		struct lttng_msgpack_writer *writer, size_t count);

__attribute__((visibility("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	#endif /* __KERNEL__ */
	16
	17	struct lttng_msgpack_writer {
	18	uint8_t *buffer;
	19	uint8_t *write_pos;
	20	const uint8_t *end_write_pos;
	21	uint8_t array_nesting;
	22	uint8_t map_nesting;
	23	};
	24
	25	__attribute__((visibility("hidden")))
	26	void lttng_msgpack_writer_init(
	27	struct lttng_msgpack_writer *writer,
	28	uint8_t *buffer, size_t size);
	29
	30	__attribute__((visibility("hidden")))
	31	void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer);
	32
	33	__attribute__((visibility("hidden")))
	34	int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer);
	35
	36	__attribute__((visibility("hidden")))
	37	int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer);
	38
	39	__attribute__((visibility("hidden")))
	40	int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer);
	41
	42	__attribute__((visibility("hidden")))
	43	int lttng_msgpack_write_unsigned_integer(
	44	struct lttng_msgpack_writer *writer, uint64_t value);
	45
	46	__attribute__((visibility("hidden")))
	47	int lttng_msgpack_write_signed_integer(
	48	struct lttng_msgpack_writer *writer, int64_t value);
	49
	50	__attribute__((visibility("hidden")))
	51	int lttng_msgpack_write_double(struct lttng_msgpack_writer *writer, double value);
	52
	53	__attribute__((visibility("hidden")))
	54	int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer,
	55	const char *value);
	56
	57	__attribute__((visibility("hidden")))
	58	int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);
	59
	60	__attribute__((visibility("hidden")))
	61	int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);
	62
	63	__attribute__((visibility("hidden")))
	64	int lttng_msgpack_begin_array(
	65	struct lttng_msgpack_writer *writer, size_t count);
	66
	67	__attribute__((visibility("hidden")))
	68	int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer);
	69
	70	#endif /* _LTTNG_UST_MSGPACK_H */