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esp_err.h
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esp_err.h
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <stdint.h>
#include <stdio.h>
#include <assert.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef int esp_err_t;
/* Definitions for error constants. */
#define ESP_OK 0 /*!< esp_err_t value indicating success (no error) */
#define ESP_FAIL -1 /*!< Generic esp_err_t code indicating failure */
#define ESP_ERR_NO_MEM 0x101 /*!< Out of memory */
#define ESP_ERR_INVALID_ARG 0x102 /*!< Invalid argument */
#define ESP_ERR_INVALID_STATE 0x103 /*!< Invalid state */
#define ESP_ERR_INVALID_SIZE 0x104 /*!< Invalid size */
#define ESP_ERR_NOT_FOUND 0x105 /*!< Requested resource not found */
#define ESP_ERR_NOT_SUPPORTED 0x106 /*!< Operation or feature not supported */
#define ESP_ERR_TIMEOUT 0x107 /*!< Operation timed out */
#define ESP_ERR_INVALID_RESPONSE 0x108 /*!< Received response was invalid */
#define ESP_ERR_INVALID_CRC 0x109 /*!< CRC or checksum was invalid */
#define ESP_ERR_INVALID_VERSION 0x10A /*!< Version was invalid */
#define ESP_ERR_INVALID_MAC 0x10B /*!< MAC address was invalid */
#define ESP_ERR_WIFI_BASE 0x3000 /*!< Starting number of WiFi error codes */
#define ESP_ERR_MESH_BASE 0x4000 /*!< Starting number of MESH error codes */
#define ESP_ERR_FLASH_BASE 0x6000 /*!< Starting number of flash error codes */
#define ESP_ERR_HW_CRYPTO_BASE 0xc000 /*!< Starting number of HW cryptography module error codes */
/**
* @brief Returns string for esp_err_t error codes
*
* This function finds the error code in a pre-generated lookup-table and
* returns its string representation.
*
* The function is generated by the Python script
* tools/gen_esp_err_to_name.py which should be run each time an esp_err_t
* error is modified, created or removed from the IDF project.
*
* @param code esp_err_t error code
* @return string error message
*/
const char *esp_err_to_name(esp_err_t code);
/**
* @brief Returns string for esp_err_t and system error codes
*
* This function finds the error code in a pre-generated lookup-table of
* esp_err_t errors and returns its string representation. If the error code
* is not found then it is attempted to be found among system errors.
*
* The function is generated by the Python script
* tools/gen_esp_err_to_name.py which should be run each time an esp_err_t
* error is modified, created or removed from the IDF project.
*
* @param code esp_err_t error code
* @param[out] buf buffer where the error message should be written
* @param buflen Size of buffer buf. At most buflen bytes are written into the buf buffer (including the terminating null byte).
* @return buf containing the string error message
*/
const char *esp_err_to_name_r(esp_err_t code, char *buf, size_t buflen);
/** @cond */
void _esp_error_check_failed(esp_err_t rc, const char *file, int line, const char *function, const char *expression) __attribute__((noreturn));
/** @cond */
void _esp_error_check_failed_without_abort(esp_err_t rc, const char *file, int line, const char *function, const char *expression);
#ifndef __ASSERT_FUNC
/* This won't happen on IDF, which defines __ASSERT_FUNC in assert.h, but it does happen when building on the host which
uses /usr/include/assert.h or equivalent.
*/
#ifdef __ASSERT_FUNCTION
#define __ASSERT_FUNC __ASSERT_FUNCTION /* used in glibc assert.h */
#else
#define __ASSERT_FUNC "??"
#endif
#endif
/** @endcond */
/**
* Macro which can be used to check the error code,
* and terminate the program in case the code is not ESP_OK.
* Prints the error code, error location, and the failed statement to serial output.
*
* Disabled if assertions are disabled.
*/
#ifdef NDEBUG
#define ESP_ERROR_CHECK(x) do { \
esp_err_t __err_rc = (x); \
(void) sizeof(__err_rc); \
} while(0)
#elif defined(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT)
#define ESP_ERROR_CHECK(x) do { \
esp_err_t __err_rc = (x); \
if (__err_rc != ESP_OK) { \
abort(); \
} \
} while(0)
#else
#define ESP_ERROR_CHECK(x) do { \
esp_err_t __err_rc = (x); \
if (__err_rc != ESP_OK) { \
_esp_error_check_failed(__err_rc, __FILE__, __LINE__, \
__ASSERT_FUNC, #x); \
} \
} while(0)
#endif
/**
* Macro which can be used to check the error code. Prints the error code, error location, and the failed statement to
* serial output.
* In comparison with ESP_ERROR_CHECK(), this prints the same error message but isn't terminating the program.
*/
#ifdef NDEBUG
#define ESP_ERROR_CHECK_WITHOUT_ABORT(x) ({ \
esp_err_t __err_rc = (x); \
__err_rc; \
})
#else
#define ESP_ERROR_CHECK_WITHOUT_ABORT(x) ({ \
esp_err_t __err_rc = (x); \
if (__err_rc != ESP_OK) { \
_esp_error_check_failed_without_abort(__err_rc, __FILE__, __LINE__, \
__ASSERT_FUNC, #x); \
} \
__err_rc; \
})
#endif //NDEBUG
#ifdef __cplusplus
}
#endif