44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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// Copyright 2018 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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#include "esp_event_private.h"
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#include "esp_event_internal.h"
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#include "esp_log.h"
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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)
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{
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esp_event_loop_instance_t* loop = (esp_event_loop_instance_t*) event_loop;
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bool result = false;
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xSemaphoreTake(loop->mutex, portMAX_DELAY);
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esp_event_base_instance_t* base_it;
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SLIST_FOREACH(base_it, &(loop->event_bases), event_base_entry) {
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esp_event_id_instance_t* event_it;
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SLIST_FOREACH(event_it, &(base_it->event_ids), event_id_entry) {
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esp_event_handler_instance_t* handler_it;
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SLIST_FOREACH(handler_it, &(event_it->handlers), handler_entry) {
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if (base_it->base == event_base && event_it->id == event_id && handler_it->handler == event_handler) {
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result = true;
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goto out;
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}
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}
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}
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}
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out:
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xSemaphoreGive(loop->mutex);
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return result;
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}
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