/* __pthread_destory_specific.  Hurd version.

   Copyright (C) 2002-2018 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 <pthread.h>

#include <stdlib.h>

#include <pt-internal.h>

void

__pthread_destroy_specific (struct __pthread *thread)

{

  int i;

  int seen_one;

  /* Check if there is any thread specific data.  */

  if (thread->thread_specifics == NULL)

    return;

  __pthread_key_lock_ready ();

  /* Iterate and call the destructors on any thread specific data.  */

  for (;;)

    {

      seen_one = 0;

      __pthread_mutex_lock (&__pthread_key_lock);

      for (i = 0; i < __pthread_key_count && i < thread->thread_specifics_size;

	   i++)

	{

	  void *value;

	  if (__pthread_key_destructors[i] == PTHREAD_KEY_INVALID)

	    continue;

	  value = thread->thread_specifics[i];

	  if (value != NULL)

	    {

	      thread->thread_specifics[i] = 0;

	      if (__pthread_key_destructors[i])

		{

		  seen_one = 1;

		  __pthread_key_destructors[i] (value);

		}

	    }

	}

      __pthread_mutex_unlock (&__pthread_key_lock);

      if (!seen_one)

	break;

      /* This may take a very long time.  Let those blocking on

         pthread_key_create or pthread_key_delete make progress.  */

      sched_yield ();

    }

  free (thread->thread_specifics);

  thread->thread_specifics = 0;

  thread->thread_specifics_size = 0;

}