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/* Measure pthread_create thread creation with different stack
and guard sizes.
Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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 2.1 of the License, or (at your option) any later version.
The GNU C Library 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 the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <unistd.h>
#include <support/xthread.h>
static size_t pgsize;
static void
thread_create_init (void)
{
pgsize = sysconf (_SC_PAGESIZE);
}
static void *
thread_dummy (void *arg)
{
return NULL;
}
static void
thread_create (int nthreads, size_t stacksize, size_t guardsize)
{
pthread_attr_t attr;
xpthread_attr_init (&attr);
stacksize = stacksize * pgsize;
guardsize = guardsize * pgsize;
xpthread_attr_setstacksize (&attr, stacksize);
xpthread_attr_setguardsize (&attr, guardsize);
pthread_t ts[nthreads];
for (int i = 0; i < nthreads; i++)
ts[i] = xpthread_create (&attr, thread_dummy, NULL);
for (int i = 0; i < nthreads; i++)
xpthread_join (ts[i]);
}
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