| 1 | /* $Id: systemmem-freebsd.cpp 62477 2016-07-22 18:27:37Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - RTSystemQueryTotalRam, Linux ring-3.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2012-2016 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 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.
|
|---|
| 16 | *
|
|---|
| 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.
|
|---|
| 22 | *
|
|---|
| 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.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include <iprt/system.h>
|
|---|
| 32 | #include "internal/iprt.h"
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/err.h>
|
|---|
| 35 | #include <iprt/assert.h>
|
|---|
| 36 | #include <iprt/string.h>
|
|---|
| 37 |
|
|---|
| 38 | #include <sys/types.h>
|
|---|
| 39 | #include <sys/sysctl.h>
|
|---|
| 40 | #include <errno.h>
|
|---|
| 41 |
|
|---|
| 42 |
|
|---|
| 43 | RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
|
|---|
| 44 | {
|
|---|
| 45 | int rc = VINF_SUCCESS;
|
|---|
| 46 | u_long cbMemPhys = 0;
|
|---|
| 47 | size_t cbParameter = sizeof(cbMemPhys);
|
|---|
| 48 |
|
|---|
| 49 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
|
|---|
| 50 |
|
|---|
| 51 | if (!sysctlbyname("hw.physmem", &cbMemPhys, &cbParameter, NULL, 0))
|
|---|
| 52 | {
|
|---|
| 53 | *pcb = cbMemPhys;
|
|---|
| 54 | return VINF_SUCCESS;
|
|---|
| 55 | }
|
|---|
| 56 | return RTErrConvertFromErrno(errno);
|
|---|
| 57 | }
|
|---|
| 58 |
|
|---|
| 59 |
|
|---|
| 60 | RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
|
|---|
| 61 | {
|
|---|
| 62 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
|
|---|
| 63 |
|
|---|
| 64 | int rc = VINF_SUCCESS;
|
|---|
| 65 | u_int cPagesMemFree = 0;
|
|---|
| 66 | u_int cPagesMemInactive = 0;
|
|---|
| 67 | u_int cPagesMemCached = 0;
|
|---|
| 68 | u_int cPagesMemUsed = 0;
|
|---|
| 69 | int cbPage = 0;
|
|---|
| 70 | size_t cbParameter;
|
|---|
| 71 | int cProcessed = 0;
|
|---|
| 72 |
|
|---|
| 73 | cbParameter = sizeof(cPagesMemFree);
|
|---|
| 74 | if (sysctlbyname("vm.stats.vm.v_free_count", &cPagesMemFree, &cbParameter, NULL, 0))
|
|---|
| 75 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 76 | cbParameter = sizeof(cPagesMemUsed);
|
|---|
| 77 | if ( RT_SUCCESS(rc)
|
|---|
| 78 | && sysctlbyname("vm.stats.vm.v_active_count", &cPagesMemUsed, &cbParameter, NULL, 0))
|
|---|
| 79 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 80 | cbParameter = sizeof(cPagesMemInactive);
|
|---|
| 81 | if ( RT_SUCCESS(rc)
|
|---|
| 82 | && sysctlbyname("vm.stats.vm.v_inactive_count", &cPagesMemInactive, &cbParameter, NULL, 0))
|
|---|
| 83 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 84 | cbParameter = sizeof(cPagesMemCached);
|
|---|
| 85 | if ( RT_SUCCESS(rc)
|
|---|
| 86 | && sysctlbyname("vm.stats.vm.v_cache_count", &cPagesMemCached, &cbParameter, NULL, 0))
|
|---|
| 87 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 88 | cbParameter = sizeof(cbPage);
|
|---|
| 89 | if ( RT_SUCCESS(rc)
|
|---|
| 90 | && sysctlbyname("hw.pagesize", &cbPage, &cbParameter, NULL, 0))
|
|---|
| 91 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 92 |
|
|---|
| 93 | if (RT_SUCCESS(rc))
|
|---|
| 94 | *pcb = (cPagesMemFree + cPagesMemInactive + cPagesMemCached ) * cbPage;
|
|---|
| 95 |
|
|---|
| 96 | return rc;
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
