137 lines
3 KiB
C
137 lines
3 KiB
C
/* Multithread-safety test for c_strtold().
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Copyright (C) 2024-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
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#include <config.h>
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/* Work around GCC bug 44511. */
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#if _GL_GNUC_PREREQ (4, 3)
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# pragma GCC diagnostic ignored "-Wreturn-type"
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#endif
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#if USE_ISOC_THREADS || USE_POSIX_THREADS || USE_ISOC_AND_POSIX_THREADS || USE_WINDOWS_THREADS
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/* Specification. */
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#include "c-strtod.h"
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#include <errno.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "glthread/thread.h"
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static void *
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thread1_func (void *arg)
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{
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const char input[] = "1,5";
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for (;;)
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{
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char *ptr;
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long double result;
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errno = 0;
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result = c_strtold (input, &ptr);
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if (!(result == 1.0L && ptr == input + 1 && errno == 0))
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{
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fprintf (stderr, "thread1 malfunction!\n"); fflush (stderr);
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abort ();
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}
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}
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/*NOTREACHED*/
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}
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static void *
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thread2_func (void *arg)
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{
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const char input[] = "1,5";
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for (;;)
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{
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char *ptr;
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long double result;
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errno = 0;
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result = strtold (input, &ptr);
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if (!(result == 1.5L && ptr == input + 3 && errno == 0))
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{
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fprintf (stderr, "thread2 disturbed by thread1!\n"); fflush (stderr);
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abort ();
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}
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}
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/*NOTREACHED*/
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}
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static void *
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thread3_func (void *arg)
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{
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for (;;)
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{
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char pointbuf[5];
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sprintf (pointbuf, "%#.0f", 1.0);
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if (!(pointbuf[1] == ','))
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{
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fprintf (stderr, "thread3 disturbed by thread1!\n"); fflush (stderr);
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abort ();
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}
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}
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/*NOTREACHED*/
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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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/* Try to set the locale by implicitly looking at the LC_ALL environment
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variable.
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configure should already have checked that the locale is supported. */
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if (setlocale (LC_ALL, "") == NULL)
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return 1;
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/* Create the threads. */
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gl_thread_create (thread1_func, NULL);
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gl_thread_create (thread2_func, NULL);
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gl_thread_create (thread3_func, NULL);
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/* Let them run for 1 second. */
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{
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struct timespec duration;
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duration.tv_sec = (argc > 1 ? atoi (argv[1]) : 1);
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duration.tv_nsec = 0;
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nanosleep (&duration, NULL);
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}
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return 0;
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}
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#else
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/* No multithreading available. */
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#include <stdio.h>
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int
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main ()
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{
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fputs ("Skipping test: multithreading not enabled\n", stderr);
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return 77;
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}
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#endif
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