| 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 "ust-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 */ |