/* Get calling thread's ID.
   Copyright (C) 2000-2023 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
   <https://www.gnu.org/licenses/>.  */

#include <pthread.h>
#include <shlib-compat.h>
#include <pt-internal.h>

/* Return the thread ID of the calling thread.  */
pthread_t
__pthread_self (void)
{
  struct __pthread *self;

  if (___pthread_self == NULL)
    /* We are not initialized yet, we are the first thread.  */
    return 1;

  self = _pthread_self ();
  assert (self != NULL);

  return self->thread;
}

libc_hidden_def (__pthread_self)
versioned_symbol (libc, __pthread_self, pthread_self, GLIBC_2_21);

#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_12, GLIBC_2_21)
compat_symbol (libc, __pthread_self, pthread_self, GLIBC_2_12);
#endif