/*
        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

//
// 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, ...);

void Sys_Error (char *error, ...);
// an error will cause the entire program to exit

void Sys_Printf (char *fmt, ...);
// 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_SendKeyEvents (void);
// Perform Key_Event () callbacks until the input que is empty

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

void Sys_Printf (char *fmt, ...);
// send text to the console

void Sys_Init (void);

#endif // _SYS_H