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/* Manythreads test program.
Copyright 2004-2017 Free Software Foundation, Inc.
Written by Jeff Johnston <jjohnstn@redhat.com>
Contributed by Red Hat
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <pthread.h>
#ifdef DEBUG
#include <stdio.h>
#endif
#include <limits.h>
void *
thread_function (void *arg)
{
int x = * (int *) arg;
#ifdef DEBUG
printf ("Thread <%d> executing\n", x);
#endif /* DEBUG */
return NULL;
}
int
main (int argc, char **argv)
{
pthread_attr_t attr;
pthread_t threads[256];
int args[256];
int i, j;
pthread_attr_init (&attr);
#ifdef PTHREAD_STACK_MIN
pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);
#endif
/* Create a ton of quick-executing threads, then wait for them to
complete. */
for (i = 0; i < 1000; ++i)
{
for (j = 0; j < 256; ++j)
{
args[j] = i * 1000 + j;
pthread_create (&threads[j], &attr, thread_function, &args[j]);
}
for (j = 0; j < 256; ++j)
{
pthread_join (threads[j], NULL);
}
}
pthread_attr_destroy (&attr);
return 0;
}
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