VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/os2/mp-os2.cpp@ 103914

Last change on this file since 103914 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id Revision
File size: 3.2 KB
Line 
1/* $Id: mp-os2.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - Multiprocessor, OS/2.
4 */
5
6/*
7 * Copyright (C) 2006-2023 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#define INCL_BASE
42#define INCL_ERRORS
43#include <os2.h>
44#undef RT_MAX
45
46#include <iprt/mp.h>
47#include <iprt/cpuset.h>
48#include <iprt/assert.h>
49
50/** @todo RTMpCpuId() */
51
52RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu)
53{
54 return idCpu < RTCPUSET_MAX_CPUS ? (int) idCpu : -1;
55}
56
57
58RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu)
59{
60 return (unsigned)iCpu < RTCPUSET_MAX_CPUS ? iCpu : NIL_RTCPUID;
61}
62
63
64RTDECL(RTCPUID) RTMpGetMaxCpuId(void)
65{
66 return RTCPUSET_MAX_CPUS;
67}
68
69
70RTDECL(bool) RTMpIsCpuPossible(RTCPUID idCpu)
71{
72 RTCPUSET Set;
73 return RTCpuSetIsMember(RTMpGetSet(&Set), idCpu);
74}
75
76
77RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet)
78{
79 RTCPUID idCpu = RTMpGetCount();
80 RTCpuSetEmpty(pSet);
81 while (idCpu-- > 0)
82 RTCpuSetAdd(pSet, idCpu);
83 return pSet;
84}
85
86
87RTDECL(RTCPUID) RTMpGetCount(void)
88{
89 ULONG cCpus = 1;
90 int rc = DosQuerySysInfo(QSV_NUMPROCESSORS, QSV_NUMPROCESSORS, &cCpus, sizeof(cCpus));
91 if (rc || !cCpus)
92 cCpus = 1;
93 return cCpus;
94}
95
96
97RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu)
98{
99 RTCPUSET Set;
100 return RTCpuSetIsMember(RTMpGetOnlineSet(&Set), idCpu);
101}
102
103
104RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
105{
106 union
107 {
108 uint64_t u64;
109 MPAFFINITY mpaff;
110 } u;
111
112 int rc = DosQueryThreadAffinity(AFNTY_SYSTEM, &u.mpaff);
113 if (rc)
114 u.u64 = 1;
115 return RTCpuSetFromU64(pSet, u.u64);
116}
117
118
119RTDECL(RTCPUID) RTMpGetOnlineCount(void)
120{
121 RTCPUSET Set;
122 RTMpGetOnlineSet(&Set);
123 return RTCpuSetCount(&Set);
124}
125
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette