1
/* $Id: systemmem-linux.cpp $ */
3
* IPRT - RTSystemQueryTotalRam, Linux ring-3.
7
* Copyright (C) 2012 Oracle Corporation
9
* This file is part of VirtualBox Open Source Edition (OSE), as
10
* available from http://www.virtualbox.org. This file is free software;
11
* you can redistribute it and/or modify it under the terms of the GNU
12
* General Public License (GPL) as published by the Free Software
13
* Foundation, in version 2 as it comes in the "COPYING" file of the
14
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17
* The contents of this file may alternatively be used under the terms
18
* of the Common Development and Distribution License Version 1.0
19
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20
* VirtualBox OSE distribution, in which case the provisions of the
21
* CDDL are applicable instead of those of the GPL.
23
* You may elect to license modified versions of this file under the
24
* terms and conditions of either the GPL or the CDDL or both.
28
/*******************************************************************************
30
*******************************************************************************/
31
#include <iprt/system.h>
32
#include "internal/iprt.h"
35
#include <iprt/assert.h>
39
/* Satisfy compiller warning */
40
#define __EXPORTED_HEADERS__
41
#include <sys/sysinfo.h>
42
#undef __EXPORTED_HEADERS__
45
RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
47
AssertPtrReturn(pcb, VERR_INVALID_POINTER);
50
int rc = sysinfo(&info);
53
*pcb = (uint64_t)(info.totalram * (unsigned long)info.mem_unit);
56
return RTErrConvertFromErrno(errno);
60
RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
62
AssertPtrReturn(pcb, VERR_INVALID_POINTER);
65
int rc = sysinfo(&info);
68
*pcb = (uint64_t)(info.freeram * (unsigned long)info.mem_unit);
71
return RTErrConvertFromErrno(errno);