9b4815e3c8
* It's possible now to register the same handler several times to one specific event, using a dynamic handle object.
43 lines
1.8 KiB
C
43 lines
1.8 KiB
C
// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef ESP_EVENT_BASE_H_
|
|
#define ESP_EVENT_BASE_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// Defines for declaring and defining event base
|
|
#define ESP_EVENT_DECLARE_BASE(id) extern esp_event_base_t id
|
|
#define ESP_EVENT_DEFINE_BASE(id) esp_event_base_t id = #id
|
|
|
|
// Event loop library types
|
|
typedef const char* esp_event_base_t; /**< unique pointer to a subsystem that exposes events */
|
|
typedef void* esp_event_loop_handle_t; /**< a number that identifies an event with respect to a base */
|
|
typedef void (*esp_event_handler_t)(void* event_handler_arg,
|
|
esp_event_base_t event_base,
|
|
int32_t event_id,
|
|
void* event_data); /**< function called when an event is posted to the queue */
|
|
typedef void* esp_event_handler_instance_t; /**< context identifying an instance of a registered event handler */
|
|
|
|
// Defines for registering/unregistering event handlers
|
|
#define ESP_EVENT_ANY_BASE NULL /**< register handler for any event base */
|
|
#define ESP_EVENT_ANY_ID -1 /**< register handler for any event id */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // #ifndef ESP_EVENT_BASE_H_
|