VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/freebsd/systemmem-freebsd.cpp@ 103795

Last change on this file since 103795 was 98103, checked in by vboxsync, 23 months ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 3.7 KB
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1/* $Id: systemmem-freebsd.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - RTSystemQueryTotalRam, Linux 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#include <iprt/string.h>
47
48#include <sys/types.h>
49#include <sys/sysctl.h>
50#include <errno.h>
51
52
53RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
54{
55 int rc = VINF_SUCCESS;
56 u_long cbMemPhys = 0;
57 size_t cbParameter = sizeof(cbMemPhys);
58
59 AssertPtrReturn(pcb, VERR_INVALID_POINTER);
60
61 if (!sysctlbyname("hw.physmem", &cbMemPhys, &cbParameter, NULL, 0))
62 {
63 *pcb = cbMemPhys;
64 return VINF_SUCCESS;
65 }
66 return RTErrConvertFromErrno(errno);
67}
68
69
70RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
71{
72 AssertPtrReturn(pcb, VERR_INVALID_POINTER);
73
74 int rc = VINF_SUCCESS;
75 u_int cPagesMemFree = 0;
76 u_int cPagesMemInactive = 0;
77 u_int cPagesMemCached = 0;
78 u_int cPagesMemUsed = 0;
79 int cbPage = 0;
80 size_t cbParameter;
81 int cProcessed = 0;
82
83 cbParameter = sizeof(cPagesMemFree);
84 if (sysctlbyname("vm.stats.vm.v_free_count", &cPagesMemFree, &cbParameter, NULL, 0))
85 rc = RTErrConvertFromErrno(errno);
86 cbParameter = sizeof(cPagesMemUsed);
87 if ( RT_SUCCESS(rc)
88 && sysctlbyname("vm.stats.vm.v_active_count", &cPagesMemUsed, &cbParameter, NULL, 0))
89 rc = RTErrConvertFromErrno(errno);
90 cbParameter = sizeof(cPagesMemInactive);
91 if ( RT_SUCCESS(rc)
92 && sysctlbyname("vm.stats.vm.v_inactive_count", &cPagesMemInactive, &cbParameter, NULL, 0))
93 rc = RTErrConvertFromErrno(errno);
94 cbParameter = sizeof(cPagesMemCached);
95 if ( RT_SUCCESS(rc)
96 && sysctlbyname("vm.stats.vm.v_cache_count", &cPagesMemCached, &cbParameter, NULL, 0))
97 rc = RTErrConvertFromErrno(errno);
98 cbParameter = sizeof(cbPage);
99 if ( RT_SUCCESS(rc)
100 && sysctlbyname("hw.pagesize", &cbPage, &cbParameter, NULL, 0))
101 rc = RTErrConvertFromErrno(errno);
102
103 if (RT_SUCCESS(rc))
104 *pcb = (cPagesMemFree + cPagesMemInactive + cPagesMemCached ) * cbPage;
105
106 return rc;
107}
108
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