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/* Copyright 2011,2013,2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile 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 3 of the License, or
(at your option) any later version.
Guile 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 Guile. If not, see
<https://www.gnu.org/licenses/>. */
/* Test whether threads created with `pthread_create' work, and whether
a secondary thread can call `scm_with_guile'. (bug #32436). */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <pthread.h>
#include <stdlib.h>
#include <libguile.h>
#include <gc/gc.h>
/* Currently, calling `GC_INIT' from a secondary thread is only
supported on some systems, notably Linux-based systems (and not on
FreeBSD, for instance.)
Up to GC 7.2alpha5, calling `GC_INIT' from a secondary thread would
lead to a segfault. This was fixed in BDW-GC on 2011-04-16 by Ivan
Maidanski. See <http://thread.gmane.org/gmane.lisp.guile.bugs/5340>
for details. */
#if defined __linux__ \
&& (GC_VERSION_MAJOR > 7 \
|| (GC_VERSION_MAJOR == 7 && GC_VERSION_MINOR > 2) \
|| (GC_VERSION_MAJOR == 7 && GC_VERSION_MINOR == 2 \
&& GC_ALPHA_VERSION > 5))
static void *
do_something (void *arg)
{
scm_list_copy (scm_make_list (scm_from_int (1234), SCM_BOOL_T));
scm_gc ();
return NULL;
}
static void *
thread (void *arg)
{
scm_with_guile (do_something, NULL);
return NULL;
}
int
main (int argc, char *argv[])
{
int i;
for (i = 0; i < 77; i++)
{
pthread_t thr;
pthread_create (&thr, NULL, thread, NULL);
pthread_join (thr, NULL);
}
return EXIT_SUCCESS;
}
#else /* Linux && GC < 7.2alpha5 */
int
main (int argc, char *argv[])
{
/* Skip. */
return 77;
}
#endif /* GC < 7.2 */
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