File: pthread-pids.h

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glibc 2.24-10
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/* Initialize pid and tid fields of struct pthread.  Linux version.
   Copyright (C) 2015-2016 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 <pthreadP.h>
#include <sysdep.h>

/* Initialize PD->pid and PD->tid for the initial thread.  If there is
   setup required to arrange that __exit_thread causes PD->tid to be
   cleared and futex-woken, then this function should do that as well.  */
static inline void
__pthread_initialize_pids (struct pthread *pd)
{
  INTERNAL_SYSCALL_DECL (err);
  pd->tid = INTERNAL_SYSCALL (set_tid_address, err, 1, &pd->tid);
}