| 1 | /* $Id: systemmem-freebsd.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTSystemQueryTotalRam, Linux ring-3.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/system.h>
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| 32 | #include "internal/iprt.h"
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| 33 |
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| 34 | #include <iprt/errcore.h>
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| 35 | #include <iprt/assert.h>
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| 36 | #include <iprt/string.h>
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| 37 |
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| 38 | #include <sys/types.h>
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| 39 | #include <sys/sysctl.h>
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| 40 | #include <errno.h>
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| 41 |
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| 42 |
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| 43 | RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
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| 44 | {
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| 45 | int rc = VINF_SUCCESS;
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| 46 | u_long cbMemPhys = 0;
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| 47 | size_t cbParameter = sizeof(cbMemPhys);
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| 48 |
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| 49 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
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| 50 |
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| 51 | if (!sysctlbyname("hw.physmem", &cbMemPhys, &cbParameter, NULL, 0))
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| 52 | {
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| 53 | *pcb = cbMemPhys;
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| 54 | return VINF_SUCCESS;
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| 55 | }
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| 56 | return RTErrConvertFromErrno(errno);
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| 57 | }
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| 58 |
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| 59 |
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| 60 | RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
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| 61 | {
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| 62 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
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| 63 |
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| 64 | int rc = VINF_SUCCESS;
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| 65 | u_int cPagesMemFree = 0;
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| 66 | u_int cPagesMemInactive = 0;
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| 67 | u_int cPagesMemCached = 0;
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| 68 | u_int cPagesMemUsed = 0;
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| 69 | int cbPage = 0;
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| 70 | size_t cbParameter;
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| 71 | int cProcessed = 0;
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| 72 |
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| 73 | cbParameter = sizeof(cPagesMemFree);
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| 74 | if (sysctlbyname("vm.stats.vm.v_free_count", &cPagesMemFree, &cbParameter, NULL, 0))
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| 75 | rc = RTErrConvertFromErrno(errno);
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| 76 | cbParameter = sizeof(cPagesMemUsed);
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| 77 | if ( RT_SUCCESS(rc)
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| 78 | && sysctlbyname("vm.stats.vm.v_active_count", &cPagesMemUsed, &cbParameter, NULL, 0))
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| 79 | rc = RTErrConvertFromErrno(errno);
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| 80 | cbParameter = sizeof(cPagesMemInactive);
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| 81 | if ( RT_SUCCESS(rc)
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| 82 | && sysctlbyname("vm.stats.vm.v_inactive_count", &cPagesMemInactive, &cbParameter, NULL, 0))
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| 83 | rc = RTErrConvertFromErrno(errno);
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| 84 | cbParameter = sizeof(cPagesMemCached);
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| 85 | if ( RT_SUCCESS(rc)
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| 86 | && sysctlbyname("vm.stats.vm.v_cache_count", &cPagesMemCached, &cbParameter, NULL, 0))
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| 87 | rc = RTErrConvertFromErrno(errno);
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| 88 | cbParameter = sizeof(cbPage);
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| 89 | if ( RT_SUCCESS(rc)
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| 90 | && sysctlbyname("hw.pagesize", &cbPage, &cbParameter, NULL, 0))
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| 91 | rc = RTErrConvertFromErrno(errno);
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| 92 |
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| 93 | if (RT_SUCCESS(rc))
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| 94 | *pcb = (cPagesMemFree + cPagesMemInactive + cPagesMemCached ) * cbPage;
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| 95 |
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| 96 | return rc;
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| 97 | }
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| 98 |
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