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/* Block a thread. Viengoos version.
Copyright (C) 2008 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 <hurd/stddef.h>
#include <viengoos/futex.h>
/* Block THREAD. */
void
__pthread_block (struct __pthread *thread)
{
assert (thread->lock_message_buffer);
struct hurd_message_buffer *mb = thread->lock_message_buffer;
#ifndef NDEBUG
/* Try to detect recursive locks, which we don't handle. */
thread->lock_message_buffer = NULL;
#endif
futex_wait_using (mb, &thread->threadid, thread->threadid);
#ifndef NDEBUG
thread->lock_message_buffer = mb;
#endif
}
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