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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
commit | f8fe689a81f906d1b91bb3220acde2a4ecb14c5b (patch) | |
tree | 26484e9d7e2c67806c2d1760196ff01aaa858e8c /src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.tar.xz virtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.zip |
Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp b/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp new file mode 100644 index 00000000..f75dab84 --- /dev/null +++ b/src/VBox/Runtime/r3/solaris/thread-affinity-solaris.cpp @@ -0,0 +1,94 @@ +/* $Id: thread-affinity-solaris.cpp $ */ +/** @file + * IPRT - Thread Affinity, Solaris ring-3 implementation. + */ + +/* + * Copyright (C) 2011-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/thread.h> +#include "internal/iprt.h" + +#include <iprt/assert.h> +#include <iprt/cpuset.h> +#include <iprt/err.h> +#include <iprt/mp.h> + +#include <sys/types.h> +#include <sys/processor.h> +#include <sys/procset.h> +#include <unistd.h> +#include <errno.h> + + +/* Note! The current implementation can only bind to a single CPU. */ + + +RTR3DECL(int) RTThreadSetAffinity(PCRTCPUSET pCpuSet) +{ + int rc; + if (pCpuSet == NULL) + rc = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL); + else + { + RTCPUSET PresentSet; + int cCpusInSet = RTCpuSetCount(pCpuSet); + if (cCpusInSet == 1) + { + unsigned iCpu = 0; + while ( iCpu < RTCPUSET_MAX_CPUS + && !RTCpuSetIsMemberByIndex(pCpuSet, iCpu)) + iCpu++; + rc = processor_bind(P_LWPID, P_MYID, iCpu, NULL); + } + else if ( cCpusInSet == RTCPUSET_MAX_CPUS + || RTCpuSetIsEqual(pCpuSet, RTMpGetPresentSet(&PresentSet))) + rc = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL); + else + return VERR_NOT_SUPPORTED; + } + if (!rc) + return VINF_SUCCESS; + return RTErrConvertFromErrno(errno); +} + + +RTR3DECL(int) RTThreadGetAffinity(PRTCPUSET pCpuSet) +{ + processorid_t iOldCpu; + int rc = processor_bind(P_LWPID, P_MYID, PBIND_QUERY, &iOldCpu); + if (rc) + return RTErrConvertFromErrno(errno); + if (iOldCpu == PBIND_NONE) + RTMpGetPresentSet(pCpuSet); + else + { + RTCpuSetEmpty(pCpuSet); + if (RTCpuSetAdd(pCpuSet, iOldCpu) != 0) + return VERR_INTERNAL_ERROR_5; + } + return VINF_SUCCESS; +} + |