/*
	sys.h

	non-portable functions

	Copyright (C) 1996-1997  Id Software, Inc.

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifndef _SYS_H
#define _SYS_H

#include "gcc_attr.h"

//
// file IO
//

// returns the file size
// return -1 if file is not present
// the file should be in BINARY mode for stupid OSs that care
int Sys_FileOpenRead (char *path, int *hndl);

int Sys_FileOpenWrite (char *path);
void Sys_FileClose (int handle);
void Sys_FileSeek (int handle, int position);
int Sys_FileRead (int handle, void *dest, int count);
int Sys_FileWrite (int handle, void *data, int count);
int	Sys_FileTime (char *path);
void Sys_mkdir (char *path);

//
// memory protection
//
void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length);

//
// system IO
//
void Sys_DebugLog(char *file, char *fmt, ...) __attribute__((format(printf,2,3)));

void Sys_Error (char *error, ...) __attribute__((format(printf,1,2)));
// an error will cause the entire program to exit

void Sys_Printf (char *fmt, ...) __attribute__((format(printf,1,2)));
// send text to the console

void Sys_Quit (void);

double Sys_DoubleTime (void);

char *Sys_ConsoleInput (void);

void Sys_Sleep (void);
// called to yield for a little bit so as
// not to hog cpu when paused or debugging

void Sys_LowFPPrecision (void);
void Sys_HighFPPrecision (void);
void Sys_SetFPCW (void);

void Sys_Printf (char *fmt, ...) __attribute__((format(printf,1,2)));
// send text to the console

void Sys_Init (void);
void Sys_Init_Cvars (void);

#endif // _SYS_H