Update.
[glibc.git] / iconv / gconv_close.c
blob002e2c4dce8991546d2d8a72220743a659dade0a
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.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
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 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <stdlib.h>
23 #include <gconv_int.h>
26 int
27 internal_function
28 __gconv_close (__gconv_t cd)
30 struct __gconv_step *srunp;
31 struct __gconv_step_data *drunp;
32 size_t nsteps;
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;
41 struct __gconv_trans_data *transp;
43 transp = drunp->__trans;
44 while (transp != NULL)
46 struct __gconv_trans_data *curp = transp;
47 transp = transp->__next;
49 if (__builtin_expect (curp->__trans_end_fct != NULL, 0))
50 curp->__trans_end_fct (curp->__data);
52 free (curp);
55 if (!(drunp->__flags & __GCONV_IS_LAST) && drunp->__outbuf != NULL)
56 free (drunp->__outbuf);
58 while (!((drunp++)->__flags & __GCONV_IS_LAST));
60 /* Free the data allocated for the descriptor. */
61 free (cd);
63 /* Close the participating modules. */
64 return __gconv_close_transform (srunp, nsteps);