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/* Thread pool for L4 threads.
Copyright (C) 2004, 2007 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <pt-internal.h>
#include <l4/thread.h>
static pthread_mutex_t pool_lock = PTHREAD_MUTEX_INITIALIZER;
_L4_thread_id_t pool_list = l4_nilthread;
/* Add the thread TID to the pthread kernel thread pool. */
int
pthread_pool_add_np (l4_thread_id_t tid)
{
__pthread_mutex_lock (&pool_lock);
/* FIXME: Do error checking. */
l4_set_user_defined_handle_of (tid, pool_list);
pool_list = tid;
__pthread_mutex_unlock (&pool_lock);
return 0;
}
/* Get the first thread from the pool. */
l4_thread_id_t
pthread_pool_get_np (void)
{
_L4_thread_id_t tid;
__pthread_mutex_lock (&pool_lock);
/* FIXME: Do error checking. */
tid = pool_list;
if (tid != l4_nilthread)
pool_list = l4_user_defined_handle_of (tid);
__pthread_mutex_unlock (&pool_lock);
return tid;
}
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