cx-zivuos/headers/zivuos/latch.h

#ifndef CX_ZIVUOS_LATCH_H_INCLUDED
#define CX_ZIVUOS_LATCH_H_INCLUDED

#include "zivu_types.h"

typedef enum zv_latch_state_e {
    SAME,
    CHANGED
} zv_latch_state_t;

typedef union zv_latch_updater_u {
    intptr_t exists;
    zv_latch_state_t (*callback) (struct zv_latch_s *);
} zv_latch_updater_t;

typedef struct zv_latch_s {
    zv_universal_param_t data;
    zv_latch_state_t state;
    zv_latch_updater_t updater;
} zv_latch_t;

#endif