#ifndef __BOUNDEDBUFFER_H__
#define __BOUNDEDBUFFER_H__
/*
 * For some reasons, our ring buffer (aka BSB ring buffer)
 * can only hold size - 1 elements.
 * If we want to store BOUNDEDBUFFER_SIZE elements, as desired,
 * the buffer must be one element larger.
 * Hence, BOUNDEDBUFFER_SIZE_REAL is used for allocating the actual buffer
 * and used for the size member.
 */
#ifndef BOUNDEDBUFFER_SIZE
#error Buffer size not defined!
#endif
#define BOUNDEDBUFFER_SIZE_REAL	(BOUNDEDBUFFER_SIZE + 1)
#define BOUNDEDBUFFER_SIZE_VIRT	(BOUNDEDBUFFER_SIZE_REAL - 1)

struct boundedbuffer {
	int next_in;
	int next_out;
	int size;
	BOUNDEDBUFFER_STORAGE_TYPE data[BOUNDEDBUFFER_SIZE_REAL];
};

void init_bbuffer(struct boundedbuffer *buffer);
int is_full(struct boundedbuffer *buffer);
int is_empty(struct boundedbuffer *buffer);
int produce(struct boundedbuffer *buffer, BOUNDEDBUFFER_STORAGE_TYPE data);
int consume(struct boundedbuffer *buffer, BOUNDEDBUFFER_STORAGE_TYPE *ret);
#endif // __BOUNDEDBUFFER_H__