ESP-IDF
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Outline
#include "esp_system.h"
#include "esp_private/system_internal.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp32s2/memprot.h"
#include "esp_memprot.h"
#define SHUTDOWN_HANDLERS_NO
shutdown_handlers
esp_register_shutdown_handler(shutdown_handler_t)
esp_unregister_shutdown_handler(shutdown_handler_t)
esp_restart()
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/esp_system/esp_system.c
 
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/* * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include "esp_system.h" #include "esp_private/system_internal.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" #if CONFIG_ESP_SYSTEM_MEMPROT_FEATURE #if CONFIG_IDF_TARGET_ESP32S2 #include "esp32s2/memprot.h" #else #include "esp_memprot.h" #endif/* ... */ #endif #define SHUTDOWN_HANDLERS_NO 5 static shutdown_handler_t shutdown_handlers[SHUTDOWN_HANDLERS_NO]; esp_err_t esp_register_shutdown_handler(shutdown_handler_t handler) { for (int i = 0; i < SHUTDOWN_HANDLERS_NO; i++) { if (shutdown_handlers[i] == handler) { return ESP_ERR_INVALID_STATE; }{...} else if (shutdown_handlers[i] == NULL) { shutdown_handlers[i] = handler; return ESP_OK; }{...} }{...} return ESP_ERR_NO_MEM; }{ ... } esp_err_t esp_unregister_shutdown_handler(shutdown_handler_t handler) { for (int i = 0; i < SHUTDOWN_HANDLERS_NO; i++) { if (shutdown_handlers[i] == handler) { shutdown_handlers[i] = NULL; return ESP_OK; }{...} }{...} return ESP_ERR_INVALID_STATE; }{ ... } void esp_restart(void) { for (int i = SHUTDOWN_HANDLERS_NO - 1; i >= 0; i--) { if (shutdown_handlers[i]) { shutdown_handlers[i](); }{...} }{...} #if ( ( CONFIG_FREERTOS_SMP ) && ( !CONFIG_FREERTOS_UNICORE ) ) //Note: Scheduler suspension behavior changed in FreeRTOS SMP vTaskPreemptionDisable(NULL);/* ... */ #else // Disable scheduler on this core. vTaskSuspendAll();/* ... */ #endif // #if ( ( CONFIG_FREERTOS_SMP ) && ( !CONFIG_FREERTOS_UNICORE ) ) esp_restart_noos(); }{ ... }
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