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/* $Id$ */
/** @file
* IPRT - RTSystemQueryTotalRam, darwin ring-3.
*/
/*
* Copyright (C) 2012-2022 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/system.h>
#include "internal/iprt.h"
#include <iprt/errcore.h>
#include <iprt/assert.h>
#include <errno.h>
#include <unistd.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#include <mach/mach.h>
RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
{
AssertPtrReturn(pcb, VERR_INVALID_POINTER);
int aiMib[2];
aiMib[0] = CTL_HW;
aiMib[1] = HW_MEMSIZE;
uint64_t cbPhysMem = UINT64_MAX;
size_t cb = sizeof(cbPhysMem);
int rc = sysctl(aiMib, RT_ELEMENTS(aiMib), &cbPhysMem, &cb, NULL, 0);
if (rc == 0)
{
*pcb = cbPhysMem;
return VINF_SUCCESS;
}
return RTErrConvertFromErrno(errno);
}
RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
{
AssertPtrReturn(pcb, VERR_INVALID_POINTER);
static mach_port_t volatile s_hSelfPort = 0;
mach_port_t hSelfPort = s_hSelfPort;
if (hSelfPort == 0)
s_hSelfPort = hSelfPort = mach_host_self();
vm_statistics_data_t VmStats;
mach_msg_type_number_t cItems = sizeof(VmStats) / sizeof(natural_t);
kern_return_t krc = host_statistics(hSelfPort, HOST_VM_INFO, (host_info_t)&VmStats, &cItems);
if (krc == KERN_SUCCESS)
{
uint64_t cPages = VmStats.inactive_count;
cPages += VmStats.free_count;
*pcb = cPages * PAGE_SIZE;
return VINF_SUCCESS;
}
return RTErrConvertFromDarwin(krc);
}
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