/* Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.

   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 <netdb.h>

#include <pthread.h>

#include <gai_misc.h>

int

gai_cancel (struct gaicb *gaicbp)

{

  int result = 0;

  int status;

  /* Request the mutex.  */

  pthread_mutex_lock (&__gai_requests_mutex);

  /* Find the request among those queued but not yet running.  */

  status = __gai_remove_request (gaicbp);

  if (status == 0)

    result = EAI_CANCELED;

  else if (status > 0)

    result = EAI_NOTCANCELED;

  else

    result = EAI_ALLDONE;

  /* Release the mutex.  */

  pthread_mutex_unlock (&__gai_requests_mutex);

  return result;

}