#ifndef CIRCULAR_BUFFER_H
#define CIRCULAR_BUFFER_H

#include "config.h"
#include "include/wifi.h"

void cbuf_init();
void cbuf_fill_buffer();
void cbuf_fill_buffer_force();
Byte cbuf_push_element(Byte element_a);
Int16 cbuf_space();
#define CBUF_SIZE 2000
#define CBUF_SIZE_MINUS_ONE CBUF_SIZE-1

// doesn't check for underflow
// do it on your own
//
Byte cbuf_pop_element();

extern __xdata Byte circular_buffer[CBUF_SIZE];
extern Int16 cbuf_head;
extern Int16 cbuf_tail;

#define cbuf_empty()      (cbuf_head==cbuf_tail)
#define cbuf_full()       (cbuf_tail==(cbuf_head-1) || (cbuf_head==0 && cbuf_tail==CBUF_SIZE_MINUS_ONE))

#endif