| 1 | /* $Id: systemmem-darwin.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTSystemQueryTotalRam, darwin 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 |
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| 37 | #include <errno.h>
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| 38 | #include <unistd.h>
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| 39 | #include <sys/sysctl.h>
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| 40 | #include <sys/stat.h>
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| 41 | #include <mach/mach.h>
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| 42 |
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| 43 |
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| 44 |
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| 45 | RTDECL(int) RTSystemQueryTotalRam(uint64_t *pcb)
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| 46 | {
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| 47 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
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| 48 |
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| 49 | int aiMib[2];
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| 50 | aiMib[0] = CTL_HW;
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| 51 | aiMib[1] = HW_MEMSIZE;
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| 52 | uint64_t cbPhysMem = UINT64_MAX;
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| 53 | size_t cb = sizeof(cbPhysMem);
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| 54 | int rc = sysctl(aiMib, RT_ELEMENTS(aiMib), &cbPhysMem, &cb, NULL, 0);
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| 55 | if (rc == 0)
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| 56 | {
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| 57 | *pcb = cbPhysMem;
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| 58 | return VINF_SUCCESS;
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| 59 | }
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| 60 | return RTErrConvertFromErrno(errno);
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| 61 | }
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| 62 |
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| 63 |
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| 64 | RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
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| 65 | {
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| 66 | AssertPtrReturn(pcb, VERR_INVALID_POINTER);
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| 67 |
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| 68 | static mach_port_t volatile s_hSelfPort = 0;
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| 69 | mach_port_t hSelfPort = s_hSelfPort;
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| 70 | if (hSelfPort == 0)
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| 71 | s_hSelfPort = hSelfPort = mach_host_self();
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| 72 |
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| 73 | vm_statistics_data_t VmStats;
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| 74 | mach_msg_type_number_t cItems = sizeof(VmStats) / sizeof(natural_t);
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| 75 |
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| 76 | kern_return_t krc = host_statistics(hSelfPort, HOST_VM_INFO, (host_info_t)&VmStats, &cItems);
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| 77 | if (krc == KERN_SUCCESS)
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| 78 | {
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| 79 | uint64_t cPages = VmStats.inactive_count;
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| 80 | cPages += VmStats.free_count;
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| 81 | *pcb = cPages * PAGE_SIZE;
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| 82 | return VINF_SUCCESS;
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| 83 | }
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| 84 | return RTErrConvertFromDarwin(krc);
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| 85 | }
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| 86 |
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