ESP-IDF
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Outline
#include "esp_event_private.h"
#include "esp_event_internal.h"
#include "esp_log.h"
esp_event_is_handler_registered(esp_event_loop_handle_t, esp_event_base_t, int32_t, esp_event_handler_t)
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/esp_event/esp_event_private.c
 
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/* * SPDX-FileCopyrightText: 2018-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include "esp_event_private.h" #include "esp_event_internal.h" #include "esp_log.h" bool esp_event_is_handler_registered(esp_event_loop_handle_t event_loop, esp_event_base_t event_base, int32_t event_id, esp_event_handler_t event_handler) { esp_event_loop_instance_t* loop = (esp_event_loop_instance_t*) event_loop; bool result = false; esp_event_loop_node_t* loop_node; esp_event_base_node_t* base_node; esp_event_id_node_t* id_node; esp_event_handler_node_t* handler; SLIST_FOREACH(loop_node, &(loop->loop_nodes), next) { SLIST_FOREACH(handler, &(loop_node->handlers), next) { if (event_base == ESP_EVENT_ANY_BASE && event_id == ESP_EVENT_ANY_ID && handler->handler_ctx->handler == event_handler) { result = true; goto out; }{...} }{...} SLIST_FOREACH(base_node, &(loop_node->base_nodes), next) { if (base_node->base == event_base) { SLIST_FOREACH(handler, &(base_node->handlers), next) { if (event_id == ESP_EVENT_ANY_ID && handler->handler_ctx->handler == event_handler) { result = true; goto out; }{...} }{...} SLIST_FOREACH(id_node, &(base_node->id_nodes), next) { if (id_node->id == event_id) { SLIST_FOREACH(handler, &(id_node->handlers), next) { if (handler->handler_ctx->handler == event_handler) { result = true; goto out; }{...} }{...} }{...} }{...} }{...} }{...} }{...} out: xSemaphoreGive(loop->mutex); return result; }{ ... }
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