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581c785bf3
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
79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/* Test pthread_once.
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Copyright (C) 2000-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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#define _GNU_SOURCE
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#include <pthread.h>
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#include <assert.h>
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#include <error.h>
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#include <errno.h>
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#define THREADS 10
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pthread_once_t inc_var_once = PTHREAD_ONCE_INIT;
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int var;
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void
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inc_var (void)
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{
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var++;
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}
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void *
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thr (void *arg)
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{
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int i;
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for (i = 0; i < 500; i++)
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pthread_once (&inc_var_once, inc_var);
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return 0;
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}
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int
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main (int argc, char **argv)
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{
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error_t err;
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int i;
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pthread_t tid[THREADS];
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for (i = 0; i < THREADS; i++)
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{
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err = pthread_create (&tid[i], 0, thr, 0);
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if (err)
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error (1, err, "pthread_create (%d)", i);
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}
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assert (thr (0) == 0);
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for (i = 0; i < THREADS; i++)
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{
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void *ret;
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err = pthread_join (tid[i], &ret);
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if (err)
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error (1, err, "pthread_join");
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assert (ret == 0);
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}
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assert (var == 1);
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return 0;
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}
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