1: /* Release any resource associated with given conversion descriptor.
    2:    Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4:    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <stdlib.h>
   22: 
   23: #include <gconv_int.h>
   24: 
   25: 
   26: int
   27: internal_function
   28: __gconv_close (__gconv_t cd)
   29: {
   30:   struct __gconv_step *srunp;
   31:   struct __gconv_step_data *drunp;
   32:   size_t nsteps;
   33: 
   34:   /* Free all resources by calling destructor functions and release
   35:      the implementations.  */
   36:   srunp = cd->__steps;
   37:   nsteps = cd->__nsteps;
   38:   drunp = cd->__data;
   39:   do
   40:     {
   41:       struct __gconv_trans_data *transp;
   42: 
   43:       transp = drunp->__trans;
   44:       while (transp != NULL)
   45:         {
   46:           struct __gconv_trans_data *curp = transp;
   47:           transp = transp->__next;
   48: 
   49:           if (__builtin_expect (curp->__trans_end_fct != NULL, 0))
   50:             curp->__trans_end_fct (curp->__data);
   51: 
   52:           free (curp);
   53:         }
   54: 
   55:       if (!(drunp->__flags & __GCONV_IS_LAST) && drunp->__outbuf != NULL)
   56:         free (drunp->__outbuf);
   57:     }
   58:   while (!((drunp++)->__flags & __GCONV_IS_LAST));
   59: 
   60:   /* Free the data allocated for the descriptor.  */
   61:   free (cd);
   62: 
   63:   /* Close the participating modules.  */
   64:   return __gconv_close_transform (srunp, nsteps);
   65: }