#pragma once

#include <stdio.h>
#include <sys/threads.h>

struct __pipe
{
	volatile uint8_t	*buffer;
	volatile int		size;
	volatile int
			read,
			write;

	uint8_t	options;
	
	THREAD	*wait_get,
			*wait_put;
};
typedef struct __pipe PIPE;
#define PIPE(ptr) ((PIPE*)ptr)

typedef struct {
	FILE	file;
	PIPE	pipe;
} fdPIPE;
#define fdPIPE(ptr) ((fdPIPE*)(ptr))

int		pipe_clear(FILE* pipe);
int		pipe_options(FILE* pipe,uint8_t options);

int pipe_get(FILE* stream);
int pipe_put(char c,FILE* stream);

static inline int pipe_full(FILE* pipe)
{
	return (
		((fdPIPE(pipe)->pipe.read == 0) && (fdPIPE(pipe)->pipe.write == fdPIPE(pipe)->pipe.size - 1)) ||
		(fdPIPE(pipe)->pipe.write + 1 == fdPIPE(pipe)->pipe.read)
		);
};

static inline int pipe_empty(FILE* pipe)
{
	return (fdPIPE(pipe)->pipe.read == fdPIPE(pipe)->pipe.write);
};