glibc/sysdeps/unix/sysv/linux/sched_getaffinity.c
Ulrich Drepper 439ff07be0 Update.
2004-03-18  Ulrich Drepper  <drepper@redhat.com>

	* posix/sched.h: Change sched_getaffinity and sched_setaffinity
	interfaces: add new second parameter.
	* sysdeps/generic/sched_getaffinity.c: Implement interface change.
	* sysdeps/generic/sched_setaffinity.c: Likewise.
	* sysdeps/unix/sysv/linux/sched_getaffinity.c: Likewise.  Add
	compatibility interface.
	* sysdeps/unix/sysv/linux/sched_setaffinity.c: Likewise.
	* sysdeps/unix/sysv/linux/Versions: Add versions for changed
	interfaces.
2004-03-19 00:14:42 +00:00

59 lines
1.8 KiB
C

/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sched.h>
#include <string.h>
#include <sysdep.h>
#include <sys/types.h>
#include <shlib-compat.h>
#ifdef __NR_sched_getaffinity
int
__sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset)
{
int res = INLINE_SYSCALL (sched_getaffinity, 3, pid, sizeof (cpu_set_t),
cpuset);
if (res != -1)
{
/* Clean the rest of the memory the kernel didn't do. */
memset ((char *) cpuset + res, '\0', cpusetsize - res);
res = 0;
}
return res;
}
versioned_symbol (libc, __sched_getaffinity_new, sched_getaffinity,
GLIBC_2_3_4);
# if SHLIB_COMPAT(libc, 2_3_3, 2_3_4)
int
attribute_compat_text_section
__sched_getaffinity_old (const pthread_attr_t *attr, cpu_set_t *cpuset)
{
/* The old interface by default assumed a 1024 processor bitmap. */
return __sched_getaffinity_new (attr, 128, cpuset);
}
compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3);
# endif
#else
# include <sysdeps/generic/sched_getaffinity.c>
#endif