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/* Release any resource associated with given conversion descriptor.

   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.

   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, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#include <stdlib.h>

#include <gconv_int.h>

int

internal_function

__gconv_close (__gconv_t cd)

{

  struct __gconv_step *srunp;

  struct __gconv_step_data *drunp;

  size_t nsteps;

  /* Free all resources by calling destructor functions and release

     the implementations.  */

  srunp = cd->__steps;

  nsteps = cd->__nsteps;

  drunp = cd->__data;

  do

    {

      struct __gconv_trans_data *transp;

      transp = drunp->__trans;

      while (transp != NULL)

        {

          struct __gconv_trans_data *curp = transp;

          transp = transp->__next;

          if (__builtin_expect (curp->__trans_end_fct != NULL, 0))

            curp->__trans_end_fct (curp->__data);

          free (curp);

        }

      if (!(drunp->__flags & __GCONV_IS_LAST) && drunp->__outbuf != NULL)

        free (drunp->__outbuf);

    }

  while (!((drunp++)->__flags & __GCONV_IS_LAST));

  /* Free the data allocated for the descriptor.  */

  free (cd);

  /* Close the participating modules.  */

  return __gconv_close_transform (srunp, nsteps);

}