78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* Verify that pthreads uses the default thread stack size set with the
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GLIBC_PTHREAD_DEFAULT_STACKSIZE environment variable.
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Copyright (C) 2013 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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<http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <stdio.h>
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#include <string.h>
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/* It is possible that the default stack size somehow ends up being 1MB, thus
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giving a false positive. The ideal way to test this would be to get the
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current stacksize fork a process with the default stack size set to
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something different to the current stack size and verify in the child
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process that the environment variable worked. */
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#define STACKSIZE 1024 * 1024L
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void *
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thr (void *u)
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{
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size_t stacksize, guardsize;
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pthread_attr_t attr;
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pthread_getattr_np (pthread_self (), &attr);
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pthread_attr_getstacksize (&attr, &stacksize);
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pthread_attr_getguardsize (&attr, &guardsize);
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/* FIXME once guardsize is excluded from stacksize. */
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if (stacksize - guardsize != STACKSIZE)
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{
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printf ("Stack size is %zu, should be %zu\n", stacksize - guardsize,
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STACKSIZE);
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return (void *) 1;
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}
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return NULL;
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}
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int
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do_test (int argc, char **argv)
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{
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pthread_t t;
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void *thr_ret;
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int ret;
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if ((ret = pthread_create (&t, NULL, thr, NULL)) != 0)
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{
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printf ("thread create failed: %s\n", strerror (ret));
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return 1;
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}
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if ((ret = pthread_join (t, &thr_ret)) != 0)
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{
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printf ("join failed: %s\n", strerror (ret));
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return 1;
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}
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if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
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return 1;
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return 0;
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}
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#include "../test-skeleton.c"
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