mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-12-11 13:30:59 +00:00
103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
|
|
|
|
Doom 3 Source Code 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 Source Code 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#include "sys/platform.h"
|
|
|
|
#include "sys/win32/win_local.h"
|
|
|
|
#include <lmerr.h>
|
|
#include <lmcons.h>
|
|
#include <lmwksta.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <direct.h>
|
|
#include <io.h>
|
|
#include <conio.h>
|
|
|
|
/*
|
|
================
|
|
Sys_GetSystemRam
|
|
|
|
returns amount of physical memory in MB
|
|
================
|
|
*/
|
|
int Sys_GetSystemRam( void ) {
|
|
MEMORYSTATUSEX statex;
|
|
statex.dwLength = sizeof ( statex );
|
|
GlobalMemoryStatusEx (&statex);
|
|
int physRam = statex.ullTotalPhys / ( 1024 * 1024 );
|
|
// HACK: For some reason, ullTotalPhys is sometimes off by a meg or two, so we round up to the nearest 16 megs
|
|
physRam = ( physRam + 8 ) & ~15;
|
|
return physRam;
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
Sys_GetDriveFreeSpace
|
|
returns in megabytes
|
|
================
|
|
*/
|
|
int Sys_GetDriveFreeSpace( const char *path ) {
|
|
DWORDLONG lpFreeBytesAvailable;
|
|
DWORDLONG lpTotalNumberOfBytes;
|
|
DWORDLONG lpTotalNumberOfFreeBytes;
|
|
int ret = 26;
|
|
//FIXME: see why this is failing on some machines
|
|
if ( ::GetDiskFreeSpaceEx( path, (PULARGE_INTEGER)&lpFreeBytesAvailable, (PULARGE_INTEGER)&lpTotalNumberOfBytes, (PULARGE_INTEGER)&lpTotalNumberOfFreeBytes ) ) {
|
|
ret = ( double )( lpFreeBytesAvailable ) / ( 1024.0 * 1024.0 );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
================
|
|
Sys_LockMemory
|
|
================
|
|
*/
|
|
bool Sys_LockMemory( void *ptr, int bytes ) {
|
|
return ( VirtualLock( ptr, (SIZE_T)bytes ) != FALSE );
|
|
}
|
|
|
|
/*
|
|
================
|
|
Sys_UnlockMemory
|
|
================
|
|
*/
|
|
bool Sys_UnlockMemory( void *ptr, int bytes ) {
|
|
return ( VirtualUnlock( ptr, (SIZE_T)bytes ) != FALSE );
|
|
}
|
|
|
|
/*
|
|
================
|
|
Sys_SetPhysicalWorkMemory
|
|
================
|
|
*/
|
|
void Sys_SetPhysicalWorkMemory( int minBytes, int maxBytes ) {
|
|
::SetProcessWorkingSetSize( GetCurrentProcess(), minBytes, maxBytes );
|
|
}
|