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72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthreadP.h>
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#include <shlib-compat.h>
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int
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__pthread_attr_setaffinity_new (pthread_attr_t *attr, size_t cpusetsize,
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const cpu_set_t *cpuset)
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{
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struct pthread_attr *iattr;
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iattr = (struct pthread_attr *) attr;
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if (cpuset == NULL || cpusetsize == 0)
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{
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free (iattr->cpuset);
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iattr->cpuset = NULL;
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iattr->cpusetsize = 0;
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}
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else
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{
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if (iattr->cpusetsize != cpusetsize)
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{
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void *newp = (cpu_set_t *) realloc (iattr->cpuset, cpusetsize);
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if (newp == NULL)
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return ENOMEM;
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iattr->cpuset = newp;
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iattr->cpusetsize = cpusetsize;
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}
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memcpy (iattr->cpuset, cpuset, cpusetsize);
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}
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return 0;
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}
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versioned_symbol (libpthread, __pthread_attr_setaffinity_new,
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pthread_attr_setaffinity_np, GLIBC_2_3_4);
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#if SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_3_4)
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int
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__pthread_attr_setaffinity_old (pthread_attr_t *attr, cpu_set_t *cpuset)
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{
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/* The old interface by default assumed a 1024 processor bitmap. */
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return __pthread_attr_setaffinity_new (attr, 128, cpuset);
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}
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compat_symbol (libpthread, __pthread_attr_setaffinity_old,
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pthread_attr_setaffinity_np, GLIBC_2_3_3);
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#endif
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