/* $Id$ */

/** @file fileio.cpp Standard In/Out file operations */

#include "stdafx.h"

#include "openttd.h"

#include "fileio_func.h"

#include "variables.h"

#include "debug.h"

#include "fios.h"

#include "core/alloc_func.hpp"

#include "core/math_func.hpp"

#include "string_func.h"

#include "tar_type.h"

#ifdef WIN32

#include <windows.h>

#else

#include <pwd.h>

#include <unistd.h>

#endif

#include <sys/stat.h>

/*************************************************/

/* FILE IO ROUTINES ******************************/

/*************************************************/

#define FIO_BUFFER_SIZE 512

struct Fio {

	byte *buffer, *buffer_end;             ///< position pointer in local buffer and last valid byte of buffer

	size_t pos;                            ///< current (system) position in file

	FILE *cur_fh;                          ///< current file handle

	const char *filename;                  ///< current filename

	FILE *handles[MAX_FILE_SLOTS];         ///< array of file handles we can have open

	byte buffer_start[FIO_BUFFER_SIZE];    ///< local buffer when read from file

	const char *filenames[MAX_FILE_SLOTS]; ///< array of filenames we (should) have open

	char *shortnames[MAX_FILE_SLOTS];///< array of short names for spriteloader's use

#if defined(LIMITED_FDS)

	uint open_handles;                     ///< current amount of open handles

	uint usage_count[MAX_FILE_SLOTS];      ///< count how many times this file has been opened

#endif /* LIMITED_FDS */

};

static Fio _fio;