53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/* esp_event (event loop library) basic example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#ifndef EVENT_SOURCE_H_
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#define EVENT_SOURCE_H_
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#include "esp_event.h"
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#include "esp_event_loop.h"
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#include "esp_timer.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// This example makes use of two event sources: a periodic timer, and a task.
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// Declarations for event source 1: periodic timer
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#define TIMER_EXPIRIES_COUNT 3 // number of times the periodic timer expires before being stopped
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#define TIMER_PERIOD 1000000 // period of the timer event source in microseconds
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extern esp_timer_handle_t g_timer; // the periodic timer object
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// Declare an event base
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ESP_EVENT_DECLARE_BASE(TIMER_EVENTS); // declaration of the timer events family
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enum { // declaration of the specific events under the timer event family
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TIMER_EVENT_STARTED, // raised when the timer is first started
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TIMER_EVENT_EXPIRY, // raised when a period of the timer has elapsed
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TIMER_EVENT_STOPPED // raised when the timer has been stopped
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};
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// Declarations for event source 2: task
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#define TASK_ITERATIONS_COUNT 5 // number of times the task iterates
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#define TASK_ITERATIONS_UNREGISTER 3 // count at which the task event handler is unregistered
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#define TASK_PERIOD 500 // period of the task loop in milliseconds
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ESP_EVENT_DECLARE_BASE(TASK_EVENTS); // declaration of the task events family
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enum {
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TASK_ITERATION_EVENT, // raised during an iteration of the loop within the task
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};
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#ifdef __cplusplus
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}
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#endif
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#endif // #ifndef EVENT_SOURCE_H_
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