event_bus.h

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#ifndef EVENT_BUS_H
#define EVENT_BUS_H
 
#include "esp_err.h"
 
#include <stddef.h>
#include <stdint.h>
 
#define EVENT_BUS_TASK_NAME                       ("EVENT_BUS") 
#define EVENT_BUS_TASK_STACK_DEPTH                (2024U)       
#define EVENT_BUS_TASK_PRIORITY                   (3U)          
#define EVENT_BUS_TASK_CPU_AFFINITY               (0U)          
#define EVENT_BUS_TASK_NOTIFY_STOP_BIT            (1U << 0U)    
#define EVENT_BUS_TASK_NOTIFY_event_available_BIT (1U << 1U)    
typedef enum {
    EVENT_BUS_EVENT_ERROR, 
} event_bus_event_t;
 
typedef struct {
    event_bus_event_t type; 
    union {
        uint32_t data;    
        void *data_ptr;   
    } payload;            
    size_t size;          
    int64_t timestamp_us; 
} event_bus_t;
 
typedef void (*event_bus_cb_t) (const event_bus_t *event, void *ctx); 
esp_err_t event_bus_init (size_t queue_size);
 
bool event_bus_publish (const event_bus_t *event_ptr);
 
int8_t event_bus_subscribe (event_bus_event_t type, event_bus_cb_t cb, void *ctx);
 
bool event_bus_unsubscribe (int8_t slot);
 
void event_bus_deinit (void);
 
#endif