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toml_wrap.c
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toml_wrap.c
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/*
MIT License
Copyright (c) Kacper Dalach
https://github.com/Dalachowsky/zephyr-tomlc99
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "include/toml.h"
#include <zephyr/init.h>
#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(toml, CONFIG_TOMLC99_LOG_LEVEL);
#define TOML_INIT_PRIO 0
K_MUTEX_DEFINE(toml_ctx_lock);
typedef struct {
struct k_mutex *lock;
struct k_heap heap;
} toml_ctx_t;
static toml_ctx_t ctx;
toml_table_t *toml_parse_string(char *conf)
{
toml_table_t *table;
char errbuff[200];
table = toml_parse(conf, errbuff, 200);
if (table == 0) {
LOG_ERR("Error during parsing: %s", errbuff);
}
return table;
}
/**
* @brief Initialize toml parser and take context lock
*
* @param heap pointer to heap buffer
* @param heap_size size of heap
* @param timeout amount of time to wait for context lock
*
* @warning Only one thread can have access to toml parser.
* Call toml_parser_free() after parsing is finished
*
* @retval 0 parser ready to use by this thread
* @retval -EACCESS another thread uses toml context
*/
int toml_parser_get(uint8_t *heap, size_t heap_size, k_timeout_t timeout)
{
if (k_mutex_lock(ctx.lock, timeout) != 0) {
return -EACCES;
}
k_heap_init(&ctx.heap, heap, heap_size);
return 0;
}
/**
* @brief Unlock context lock
* @details @see toml_parser_get()
*/
int toml_parser_free()
{
k_mutex_unlock(ctx.lock);
return 0;
}
/**
* Wrapper for malloc()
*/
static void *_toml_malloc(size_t size)
{
return k_heap_alloc(&ctx.heap, size, K_NO_WAIT);
}
/**
* Wrapper for free()
*/
static void _toml_free(void *ptr)
{
k_heap_free(&ctx.heap, ptr);
}
int toml_sys_init(void)
{
ctx.lock = &toml_ctx_lock;
toml_set_memutil(_toml_malloc, _toml_free);
return 0;
}
SYS_INIT(toml_sys_init, APPLICATION, TOML_INIT_PRIO);
/* end of group toml */
/** @} */