1 /* esp_event (event loop library) basic example 2 3 This example code is in the Public Domain (or CC0 licensed, at your option.) 4 5 Unless required by applicable law or agreed to in writing, this 6 software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 7 CONDITIONS OF ANY KIND, either express or implied. 8 */ 9 10 #ifndef EVENT_SOURCE_H_ 11 #define EVENT_SOURCE_H_ 12 13 #include "esp_event.h" 14 #include "esp_timer.h" 15 16 #ifdef __cplusplus 17 extern "C" { 18 #endif 19 20 // This example makes use of two event sources: a periodic timer, and a task. 21 22 // Declarations for event source 1: periodic timer 23 #define TIMER_EXPIRIES_COUNT 3 // number of times the periodic timer expires before being stopped 24 #define TIMER_PERIOD 1000000 // period of the timer event source in microseconds 25 26 extern esp_timer_handle_t g_timer; // the periodic timer object 27 28 // Declare an event base 29 ESP_EVENT_DECLARE_BASE(TIMER_EVENTS); // declaration of the timer events family 30 31 enum { // declaration of the specific events under the timer event family 32 TIMER_EVENT_STARTED, // raised when the timer is first started 33 TIMER_EVENT_EXPIRY, // raised when a period of the timer has elapsed 34 TIMER_EVENT_STOPPED // raised when the timer has been stopped 35 }; 36 37 // Declarations for event source 2: task 38 #define TASK_ITERATIONS_COUNT 5 // number of times the task iterates 39 #define TASK_ITERATIONS_UNREGISTER 3 // count at which the task event handler is unregistered 40 #define TASK_PERIOD 500 // period of the task loop in milliseconds 41 42 ESP_EVENT_DECLARE_BASE(TASK_EVENTS); // declaration of the task events family 43 44 enum { 45 TASK_ITERATION_EVENT, // raised during an iteration of the loop within the task 46 }; 47 48 #ifdef __cplusplus 49 } 50 #endif 51 52 #endif // #ifndef EVENT_SOURCE_H_ 53
