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2003-07-20 Ulrich Drepper <drepper@redhat.com> * Makefile (libpthread-routines): Add pthread_attr_getaffinity and pthread_attr_setaffinity. * Versions [libpthread] (GLIBC_2.3.3): Likewise. * sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c: New file. * sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c: New file. * pthread_attr_destroy.c: Free cpuset element if allocated. * pthread_create.c: Pass iattr as additional parameter to create_thread. * sysdeps/pthread/createthread.c: If attribute is provided and a new thread is created with affinity set or scheduling parameters, start thread with CLONE_STOPPED. * sysdeps/pthread/pthread.h: Declare pthread_attr_getaffinity and pthread_attr_setaffinity. * sysdeps/unix/sysv/linux/internaltypes.h (struct pthread_attr): Add cpuset element.
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* Copyright (C) 2003 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <assert.h>
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#include <errno.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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int
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pthread_attr_setaffinity_np (attr, cpuset)
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pthread_attr_t *attr;
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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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assert (sizeof (*attr) >= sizeof (struct pthread_attr));
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iattr = (struct pthread_attr *) attr;
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if (iattr->cpuset == NULL)
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{
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iattr->cpuset = (cpu_set_t *) malloc (sizeof (cpu_set_t));
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if (iattr->cpuset == NULL)
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return ENOMEM;
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}
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memcpy (iattr->cpuset, cpuset, sizeof (cpu_set_t));
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return 0;
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}
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