glibc/posix/tst-sched_getaffinity.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

49 lines
1.6 KiB
C

/* Tests for sched_getaffinity with large buffers.
Copyright (C) 2021-2022 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, see
<https://www.gnu.org/licenses/>. */
#include <array_length.h>
#include <sched.h>
#include <support/check.h>
/* NB: this test may fail on system with more than 32k cpus. */
static int
do_test (void)
{
/* The values are larger than the default cpu_set_t. */
const int bufsize[] = { 1<<11, 1<<12, 1<<13, 1<<14, 1<<15, 1<<16, 1<<17 };
int cpucount[array_length (bufsize)];
for (int i = 0; i < array_length (bufsize); i++)
{
cpu_set_t *cpuset = CPU_ALLOC (bufsize[i]);
TEST_VERIFY (cpuset != NULL);
size_t size = CPU_ALLOC_SIZE (bufsize[i]);
TEST_COMPARE (sched_getaffinity (0, size, cpuset), 0);
cpucount[i] = CPU_COUNT_S (size, cpuset);
CPU_FREE (cpuset);
}
for (int i = 0; i < array_length (cpucount) - 1; i++)
TEST_COMPARE (cpucount[i], cpucount[i + 1]);
return 0;
}
#include <support/test-driver.c>