#ifndef SIMTRACE_RINGBUF_H
#define SIMTRACE_RINGBUF_H

#include <stdint.h>
#include <stdbool.h>
#include <sys/types.h>

#define RING_BUFLEN 1024

typedef struct ringbuf {
    uint8_t buf[RING_BUFLEN];
    size_t ird;
    size_t iwr;
} ringbuf;

void rbuf_reset(volatile ringbuf *rb);
uint8_t rbuf_read(volatile ringbuf *rb);
uint8_t rbuf_peek(volatile ringbuf *rb);
void rbuf_write(volatile ringbuf *rb, uint8_t item);
bool rbuf_is_empty(volatile ringbuf *rb);
bool rbuf_is_full(volatile ringbuf *rb);

#endif /* end of include guard: SIMTRACE_RINGBUF_H */