| 1 | #ifndef _LTTNG_KERNEL_MSGPACK_H |
| 2 | #define _LTTNG_KERNEL_MSGPACK_H |
| 3 | |
| 4 | /* |
| 5 | * msgpack.h |
| 6 | * |
| 7 | * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com> |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU Lesser General Public |
| 11 | * License as published by the Free Software Foundation; only |
| 12 | * version 2.1 of the License. |
| 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with this library; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | #ifdef __KERNEL__ |
| 25 | #include <linux/types.h> |
| 26 | #else /* __KERNEL__ */ |
| 27 | #include <stdint.h> |
| 28 | #endif /* __KERNEL__ */ |
| 29 | |
| 30 | struct lttng_msgpack_writer { |
| 31 | uint8_t *buffer; |
| 32 | uint8_t *write_pos; |
| 33 | const uint8_t *end_write_pos; |
| 34 | uint8_t array_nesting; |
| 35 | uint8_t map_nesting; |
| 36 | }; |
| 37 | |
| 38 | void lttng_msgpack_writer_init( |
| 39 | struct lttng_msgpack_writer *writer, |
| 40 | uint8_t *buffer, size_t size); |
| 41 | |
| 42 | void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer); |
| 43 | |
| 44 | int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer); |
| 45 | int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer); |
| 46 | int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer); |
| 47 | int lttng_msgpack_write_unsigned_integer( |
| 48 | struct lttng_msgpack_writer *writer, uint64_t value); |
| 49 | int lttng_msgpack_write_signed_integer( |
| 50 | struct lttng_msgpack_writer *writer, int64_t value); |
| 51 | int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer, |
| 52 | const char *value); |
| 53 | int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count); |
| 54 | int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer); |
| 55 | int lttng_msgpack_begin_array( |
| 56 | struct lttng_msgpack_writer *writer, size_t count); |
| 57 | int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer); |
| 58 | |
| 59 | #endif /* _LTTNG_KERNEL_MSGPACK_H */ |