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/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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
<https://www.gnu.org/licenses/>. */
#include "pthreadP.h"
int
pthread_tryjoin_np (pthread_t threadid, void **thread_return)
{
/* Return right away if the thread hasn't terminated yet. */
struct pthread *pd = (struct pthread *) threadid;
if (pd->tid != 0)
return EBUSY;
/* If pd->tid == 0 then lll_wait_tid will not block on futex
operation. */
return __pthread_clockjoin_ex (threadid, thread_return, 0 /* Ignored */,
NULL, false);
}
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