8712fd3ccf
Renamed the internal rc to __err_rc to avoid clashes with local variables.
This code would not do the expected thing with the original ESP_ERROR_CHECK macro:
esp_err_t my_func(esp_err_t x)
{
assert(x == 23);
}
esp_err_t rc = 23; //some value that is important fo the user
ESP_ERROR_CHECK(my_func(rc));
The macro will expand to:
esp_err_t rc = (my_func(rc));
And the code will assert, as my_func will receive a random value - whatever is in the internal macro rc temp variable. This is due to the C weirdness of allowing this code:
int x = x; //x has a random value.
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <stdint.h>
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#include <stdio.h>
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#include <assert.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef int32_t esp_err_t;
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/* Definitions for error constants. */
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#define ESP_OK 0
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#define ESP_FAIL -1
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#define ESP_ERR_NO_MEM 0x101
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#define ESP_ERR_INVALID_ARG 0x102
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#define ESP_ERR_INVALID_STATE 0x103
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#define ESP_ERR_INVALID_SIZE 0x104
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#define ESP_ERR_NOT_FOUND 0x105
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#define ESP_ERR_NOT_SUPPORTED 0x106
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#define ESP_ERR_TIMEOUT 0x107
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#define ESP_ERR_INVALID_RESPONSE 0x108
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#define ESP_ERR_INVALID_CRC 0x109
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#define ESP_ERR_INVALID_VERSION 0x10A
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#define ESP_ERR_INVALID_MAC 0x10B
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#define ESP_ERR_WIFI_BASE 0x3000 /*!< Starting number of WiFi error codes */
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void _esp_error_check_failed(esp_err_t rc, const char *file, int line, const char *function, const char *expression) __attribute__((noreturn));
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#ifndef __ASSERT_FUNC
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/* This won't happen on IDF, which defines __ASSERT_FUNC in assert.h, but it does happen when building on the host which
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uses /usr/include/assert.h or equivalent.
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*/
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#ifdef __ASSERT_FUNCTION
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#define __ASSERT_FUNC __ASSERT_FUNCTION /* used in glibc assert.h */
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#else
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#define __ASSERT_FUNC "??"
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#endif
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#endif
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/**
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* Macro which can be used to check the error code,
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* and terminate the program in case the code is not ESP_OK.
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* Prints the error code, error location, and the failed statement to serial output.
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*
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* Disabled if assertions are disabled.
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*/
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#ifdef NDEBUG
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#define ESP_ERROR_CHECK(x) do { \
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esp_err_t __err_rc = (x); \
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(void) sizeof(__err_rc); \
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} while(0);
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#else
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#define ESP_ERROR_CHECK(x) do { \
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esp_err_t __err_rc = (x); \
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if (__err_rc != ESP_OK) { \
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_esp_error_check_failed(__err_rc, __FILE__, __LINE__, \
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__ASSERT_FUNC, #x); \
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} \
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} while(0);
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#endif
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#ifdef __cplusplus
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}
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#endif
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