1 | /* $Id: mp-os2.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Multiprocessor, OS/2.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #define INCL_BASE
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42 | #define INCL_ERRORS
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43 | #include <os2.h>
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44 | #undef RT_MAX
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45 |
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46 | #include <iprt/mp.h>
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47 | #include <iprt/cpuset.h>
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48 | #include <iprt/assert.h>
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49 |
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50 | /** @todo RTMpCpuId() */
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51 |
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52 | RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu)
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53 | {
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54 | return idCpu < RTCPUSET_MAX_CPUS ? (int) idCpu : -1;
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55 | }
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56 |
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57 |
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58 | RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu)
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59 | {
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60 | return (unsigned)iCpu < RTCPUSET_MAX_CPUS ? iCpu : NIL_RTCPUID;
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61 | }
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62 |
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63 |
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64 | RTDECL(RTCPUID) RTMpGetMaxCpuId(void)
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65 | {
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66 | return RTCPUSET_MAX_CPUS;
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67 | }
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68 |
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69 |
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70 | RTDECL(bool) RTMpIsCpuPossible(RTCPUID idCpu)
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71 | {
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72 | RTCPUSET Set;
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73 | return RTCpuSetIsMember(RTMpGetSet(&Set), idCpu);
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74 | }
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75 |
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76 |
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77 | RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet)
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78 | {
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79 | RTCPUID idCpu = RTMpGetCount();
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80 | RTCpuSetEmpty(pSet);
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81 | while (idCpu-- > 0)
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82 | RTCpuSetAdd(pSet, idCpu);
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83 | return pSet;
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84 | }
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85 |
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86 |
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87 | RTDECL(RTCPUID) RTMpGetCount(void)
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88 | {
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89 | ULONG cCpus = 1;
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90 | int rc = DosQuerySysInfo(QSV_NUMPROCESSORS, QSV_NUMPROCESSORS, &cCpus, sizeof(cCpus));
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91 | if (rc || !cCpus)
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92 | cCpus = 1;
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93 | return cCpus;
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94 | }
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95 |
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96 |
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97 | RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu)
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98 | {
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99 | RTCPUSET Set;
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100 | return RTCpuSetIsMember(RTMpGetOnlineSet(&Set), idCpu);
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101 | }
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102 |
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103 |
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104 | RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
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105 | {
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106 | union
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107 | {
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108 | uint64_t u64;
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109 | MPAFFINITY mpaff;
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110 | } u;
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111 |
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112 | int rc = DosQueryThreadAffinity(AFNTY_SYSTEM, &u.mpaff);
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113 | if (rc)
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114 | u.u64 = 1;
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115 | return RTCpuSetFromU64(pSet, u.u64);
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116 | }
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117 |
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118 |
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119 | RTDECL(RTCPUID) RTMpGetOnlineCount(void)
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120 | {
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121 | RTCPUSET Set;
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122 | RTMpGetOnlineSet(&Set);
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123 | return RTCpuSetCount(&Set);
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124 | }
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125 |
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