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

*/
// sys.h -- non-portable functions

#ifndef SYS_H
#define SYS_H


//
// DLL management
//

// Win32 specific
#ifdef WIN32
# include <windows.h>
typedef HMODULE dllhandle_t;

// Other platforms
#else
  typedef void* dllhandle_t;
#endif

typedef struct
{
	const char *name;
	void **funcvariable;
}
dllfunction_t;

dllhandle_t Sys_LoadLibrary (const char* name);
void Sys_UnloadLibrary (dllhandle_t handle);
void* Sys_GetProcAddress (dllhandle_t handle, const char* name);


//
// 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 (const char *path, int *hndl);

int Sys_FileOpenWrite (const 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 (const char *path);
void Sys_mkdir (const char *path);

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

void Sys_Printf (const 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

// called after Com_InitArgv
void Sys_Shared_EarlyInit (void);
// called after Host_init
void Sys_Shared_LateInit (void);

#endif