ESP-IDF
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Outline
#include "esp_event.h"
#include "esp_event_internal.h"
#include "esp_task.h"
------------------------- Static Variables
s_default_loop
esp_event_handler_register(esp_event_base_t, int32_t, esp_event_handler_t, void *)
esp_event_handler_instance_register(esp_event_base_t, int32_t, esp_event_handler_t, void *, esp_event_handler_instance_t *)
esp_event_handler_unregister(esp_event_base_t, int32_t, esp_event_handler_t)
esp_event_handler_instance_unregister(esp_event_base_t, int32_t, esp_event_handler_instance_t)
esp_event_post(esp_event_base_t, int32_t, const void *, size_t, TickType_t)
esp_event_isr_post(esp_event_base_t, int32_t, const void *, size_t, BaseType_t *)
esp_event_loop_create_default()
esp_event_loop_delete_default()
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/esp_event/default_event_loop.c
 
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/* * SPDX-FileCopyrightText: 2018-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include "esp_event.h" #include "esp_event_internal.h" #include "esp_task.h" /* ------------------------- Static Variables ------------------------------- */ static esp_event_loop_handle_t s_default_loop = NULL; ------------------------- Static Variables /* ---------------------------- Public API ---------------------------------- */ esp_err_t esp_event_handler_register(esp_event_base_t event_base, int32_t event_id, esp_event_handler_t event_handler, void* event_handler_arg) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_handler_register_with(s_default_loop, event_base, event_id, event_handler, event_handler_arg); }{ ... } esp_err_t esp_event_handler_instance_register(esp_event_base_t event_base, int32_t event_id, esp_event_handler_t event_handler, void *event_handler_arg, esp_event_handler_instance_t *context) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_handler_instance_register_with(s_default_loop, event_base, event_id, event_handler, event_handler_arg, context); }{ ... } esp_err_t esp_event_handler_unregister(esp_event_base_t event_base, int32_t event_id, esp_event_handler_t event_handler) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_handler_unregister_with(s_default_loop, event_base, event_id, event_handler); }{ ... } esp_err_t esp_event_handler_instance_unregister(esp_event_base_t event_base, int32_t event_id, esp_event_handler_instance_t context) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_handler_instance_unregister_with(s_default_loop, event_base, event_id, context); }{ ... } esp_err_t esp_event_post(esp_event_base_t event_base, int32_t event_id, const void* event_data, size_t event_data_size, TickType_t ticks_to_wait) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_post_to(s_default_loop, event_base, event_id, event_data, event_data_size, ticks_to_wait); }{ ... } #if CONFIG_ESP_EVENT_POST_FROM_ISR esp_err_t esp_event_isr_post(esp_event_base_t event_base, int32_t event_id, const void* event_data, size_t event_data_size, BaseType_t* task_unblocked) { if (s_default_loop == NULL) { return ESP_ERR_INVALID_STATE; }{...} return esp_event_isr_post_to(s_default_loop, event_base, event_id, event_data, event_data_size, task_unblocked); }{ ... } /* ... */#endif esp_err_t esp_event_loop_create_default(void) { if (s_default_loop) { return ESP_ERR_INVALID_STATE; }{...} esp_event_loop_args_t loop_args = { .queue_size = CONFIG_ESP_SYSTEM_EVENT_QUEUE_SIZE, .task_name = "sys_evt", .task_stack_size = ESP_TASKD_EVENT_STACK, .task_priority = ESP_TASKD_EVENT_PRIO, .task_core_id = 0 }{...}; esp_err_t err; err = esp_event_loop_create(&loop_args, &s_default_loop); if (err != ESP_OK) { return err; }{...} return ESP_OK; }{ ... } esp_err_t esp_event_loop_delete_default(void) { if (!s_default_loop) { return ESP_ERR_INVALID_STATE; }{...} esp_err_t err; err = esp_event_loop_delete(s_default_loop); if (err != ESP_OK) { return err; }{...} s_default_loop = NULL; return ESP_OK; }{ ... }
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