VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/darwin/systemmem-darwin.cpp@ 103914

Last change on this file since 103914 was 98103, checked in by vboxsync, 23 months ago

Copyright year updates by scm.

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1/* $Id: systemmem-darwin.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - RTSystemQueryTotalRam, darwin ring-3.
4 */
5
6/*
7 * Copyright (C) 2012-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/system.h>
42#include "internal/iprt.h"
43
44#include <iprt/errcore.h>
45#include <iprt/assert.h>
46
47#include <errno.h>
48#include <unistd.h>
49#include <sys/sysctl.h>
50#include <sys/stat.h>
51#include <mach/mach.h>
52
53
54
55RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
56{
57 AssertPtrReturn(pcb, VERR_INVALID_POINTER);
58
59 int aiMib[2];
60 aiMib[0] = CTL_HW;
61 aiMib[1] = HW_MEMSIZE;
62 uint64_t cbPhysMem = UINT64_MAX;
63 size_t cb = sizeof(cbPhysMem);
64 int rc = sysctl(aiMib, RT_ELEMENTS(aiMib), &cbPhysMem, &cb, NULL, 0);
65 if (rc == 0)
66 {
67 *pcb = cbPhysMem;
68 return VINF_SUCCESS;
69 }
70 return RTErrConvertFromErrno(errno);
71}
72
73
74RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
75{
76 AssertPtrReturn(pcb, VERR_INVALID_POINTER);
77
78 static mach_port_t volatile s_hSelfPort = 0;
79 mach_port_t hSelfPort = s_hSelfPort;
80 if (hSelfPort == 0)
81 s_hSelfPort = hSelfPort = mach_host_self();
82
83 vm_statistics_data_t VmStats;
84 mach_msg_type_number_t cItems = sizeof(VmStats) / sizeof(natural_t);
85
86 kern_return_t krc = host_statistics(hSelfPort, HOST_VM_INFO, (host_info_t)&VmStats, &cItems);
87 if (krc == KERN_SUCCESS)
88 {
89 uint64_t cPages = VmStats.inactive_count;
90 cPages += VmStats.free_count;
91 *pcb = cPages * PAGE_SIZE;
92 return VINF_SUCCESS;
93 }
94 return RTErrConvertFromDarwin(krc);
95}
96
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