summaryrefslogtreecommitdiffstats
path: root/libc/sysdeps/linux/common/sched_setaffinity.c
diff options
context:
space:
mode:
author"Steven J. Hill" <sjhill@realitydiluted.com>2007-07-28 18:49:08 +0000
committer"Steven J. Hill" <sjhill@realitydiluted.com>2007-07-28 18:49:08 +0000
commit58dc1c037ddd6ad2d0b02e8ae94a5131f0b08b72 (patch)
tree506520dc26b2582aa80adedfa2bc8cbb79d8f133 /libc/sysdeps/linux/common/sched_setaffinity.c
parent2806a909adc3fbc1cce1a0f6b8bf3bafb002ef09 (diff)
downloaduClibc-alpine-58dc1c037ddd6ad2d0b02e8ae94a5131f0b08b72.tar.bz2
uClibc-alpine-58dc1c037ddd6ad2d0b02e8ae94a5131f0b08b72.tar.xz
Not quite yet.
Diffstat (limited to 'libc/sysdeps/linux/common/sched_setaffinity.c')
-rw-r--r--libc/sysdeps/linux/common/sched_setaffinity.c78
1 files changed, 0 insertions, 78 deletions
diff --git a/libc/sysdeps/linux/common/sched_setaffinity.c b/libc/sysdeps/linux/common/sched_setaffinity.c
deleted file mode 100644
index a25fbe356..000000000
--- a/libc/sysdeps/linux/common/sched_setaffinity.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Copyright (C) 2002, 2003, 2004, 2005, 2006 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 <features.h>
-#ifdef __USE_GNU
-
-#include <sched.h>
-#include <sys/types.h>
-#include <sys/syscall.h>
-
-#ifdef INTERNAL_SYSCALL /* remove this when all archs has this #defined */
-
-#include <string.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <alloca.h>
-
-libc_hidden_proto(getpid)
-
-#define __NR___syscall_sched_setaffinity __NR_sched_setaffinity
-static inline _syscall3(int, __syscall_sched_setaffinity, __kernel_pid_t, pid,
- size_t, cpusetsize, cpu_set_t *, cpuset);
-
-static size_t __kernel_cpumask_size;
-
-int sched_setaffinity(pid_t pid, size_t cpusetsize, const cpu_set_t *cpuset)
-{
- size_t cnt;
- if (unlikely (__kernel_cpumask_size == 0)) {
- INTERNAL_SYSCALL_DECL (err);
- int res;
- size_t psize = 128;
- void *p = alloca (psize);
-
- while (res = INTERNAL_SYSCALL (sched_getaffinity, err, 3, getpid (),
- psize, p),
- INTERNAL_SYSCALL_ERROR_P (res, err)
- && INTERNAL_SYSCALL_ERRNO (res, err) == EINVAL)
- p = extend_alloca (p, psize, 2 * psize);
-
- if (res == 0 || INTERNAL_SYSCALL_ERROR_P (res, err)) {
- __set_errno (INTERNAL_SYSCALL_ERRNO (res, err));
- return -1;
- }
-
- __kernel_cpumask_size = res;
- }
-
- /* We now know the size of the kernel cpumask_t. Make sure the user
- does not request to set a bit beyond that. */
- for (cnt = __kernel_cpumask_size; cnt < cpusetsize; ++cnt)
- if (((char *) cpuset)[cnt] != '\0') {
- /* Found a nonzero byte. This means the user request cannot be
- fulfilled. */
- __set_errno (EINVAL);
- return -1;
- }
-
- return INLINE_SYSCALL (sched_setaffinity, 3, pid, cpusetsize, cpuset);
-}
-#endif
-#endif