#ifndef SEGMENTS_FILE_H
#define SEGMENTS_FILE_H

#include "mmu.h"
#include "../common/platform.h"

//enable caching on PC only, as the file module already caches on casio
#if defined(PC)
#define CACHE_LEN 1024
#endif

typedef struct file_segment_t {
	int fd;
	#if defined(PC)
	int cacheOff;
	int cacheLen;
	#endif
	int filePos;
	int fileSize;
	char access;
	#if defined(PC)
	char cacheWritten;
	char cache[CACHE_LEN];
	#endif
} file_segment_t;

void fileSegmentInit(file_segment_t *segment, int fd, int pos, int len, char access);

void fileSegmentRead(int pos, char* value, void *segment);
void fileSegmentWrite(int pos, char value, void *segment);

//don't cache on casio
#if defined(PC)
int fileSegmentFlush(file_segment_t *segment);
int fileSegmentLoad(file_segment_t *segment, int pos);
#endif

#endif