libguile/ports-internal.h

   1 /*
   2  * ports-internal.h - internal-only declarations for ports.
   3  *
   4  * Copyright (C) 2013 Free Software Foundation, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public License
   8  * as published by the Free Software Foundation; either version 3 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful, but
  12  * 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 this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19  * 02110-1301 USA
  20  */
  21
  22 #ifndef SCM_PORTS_INTERNAL
  23 #define SCM_PORTS_INTERNAL
  24
  25 #include "libguile/_scm.h"
  26 #include "libguile/ports.h"
  27
  28 struct scm_port_internal
  29 {
  30   /* input/output iconv conversion descriptors */
  31   void *input_cd;
  32   void *output_cd;
  33 };
  34
  35 typedef struct scm_port_internal scm_t_port_internal;
  36
  37 #define SCM_PORT_GET_INTERNAL(x)                                \
  38   ((scm_t_port_internal *) (SCM_PTAB_ENTRY(x)->input_cd))
  39
  40 #endif