dbus/dbus-marshal-recursive.h

   1 /* -*- mode: C; c-file-style: "gnu" -*- */
   2 /* dbus-marshal-recursive.h  Marshalling routines for recursive types
   3  *
   4  * Copyright (C) 2004 Red Hat, Inc.
   5  *
   6  * Licensed under the Academic Free License version 2.1
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #ifndef DBUS_MARSHAL_RECURSIVE_H
  25 #define DBUS_MARSHAL_RECURSIVE_H
  26
  27 #include <config.h>
  28 #include <dbus/dbus-marshal-basic.h>
  29
  30 #ifndef PACKAGE
  31 #error "config.h not included here"
  32 #endif
  33
  34 typedef struct DBusTypeReader      DBusTypeReader;
  35 typedef struct DBusTypeWriter      DBusTypeWriter;
  36 typedef struct DBusTypeReaderClass DBusTypeReaderClass;
  37
  38 struct DBusTypeReader
  39 {
  40   dbus_uint32_t byte_order : 8;
  41
  42   dbus_uint32_t finished : 1;   /* marks we're at end iterator for cases
  43                                  * where we don't have another way to tell
  44                                  */
  45   const DBusString *type_str;
  46   int type_pos;
  47   const DBusString *value_str;
  48   int value_pos;
  49
  50   const DBusTypeReaderClass *klass;
  51   union
  52   {
  53     struct {
  54       int start_pos;
  55       dbus_uint32_t len;
  56       int element_type;
  57     } array;
  58   } u;
  59 };
  60
  61 struct DBusTypeWriter
  62 {
  63   dbus_uint32_t byte_order : 8;
  64
  65   dbus_uint32_t container_type : 8;
  66
  67   dbus_uint32_t type_pos_is_expectation : 1; /* type_pos is an insertion point or an expected next type */
  68   DBusString *type_str;
  69   int type_pos;
  70   DBusString *value_str;
  71   int value_pos;
  72
  73   union
  74   {
  75     struct {
  76       int start_pos; /* first element */
  77       int len_pos;
  78       int element_type_pos; /* position of array element type in type_str */
  79     } array;
  80   } u;
  81 };
  82
  83 void        _dbus_type_reader_init                (DBusTypeReader    *reader,
  84                                                    int                byte_order,
  85                                                    const DBusString  *type_str,
  86                                                    int                type_pos,
  87                                                    const DBusString  *value_str,
  88                                                    int                value_pos);
  89 void        _dbus_type_reader_init_types_only     (DBusTypeReader    *reader,
  90                                                    const DBusString  *type_str,
  91                                                    int                type_pos);
  92 int         _dbus_type_reader_get_current_type    (DBusTypeReader    *reader);
  93 dbus_bool_t _dbus_type_reader_array_is_empty      (DBusTypeReader    *reader);
  94 void        _dbus_type_reader_read_basic          (DBusTypeReader    *reader,
  95                                                    void              *value);
  96 dbus_bool_t _dbus_type_reader_read_array_of_basic (DBusTypeReader    *reader,
  97                                                    int                type,
  98                                                    void             **array,
  99                                                    int               *array_len);
 100 void        _dbus_type_reader_recurse             (DBusTypeReader    *reader,
 101                                                    DBusTypeReader    *subreader);
 102 dbus_bool_t _dbus_type_reader_next                (DBusTypeReader    *reader);
 103
 104 void        _dbus_type_writer_init            (DBusTypeWriter *writer,
 105                                                int             byte_order,
 106                                                DBusString     *type_str,
 107                                                int             type_pos,
 108                                                DBusString     *value_str,
 109                                                int             value_pos);
 110 dbus_bool_t _dbus_type_writer_write_basic     (DBusTypeWriter *writer,
 111                                                int             type,
 112                                                const void     *value);
 113 dbus_bool_t _dbus_type_writer_write_array     (DBusTypeWriter *writer,
 114                                                int             type,
 115                                                const void     *array,
 116                                                int             array_len);
 117 dbus_bool_t _dbus_type_writer_recurse_struct  (DBusTypeWriter *writer,
 118                                                DBusTypeWriter *sub);
 119 dbus_bool_t _dbus_type_writer_recurse_array   (DBusTypeWriter *writer,
 120                                                const char     *element_type,
 121                                                DBusTypeWriter *sub);
 122 dbus_bool_t _dbus_type_writer_recurse_variant (DBusTypeWriter *writer,
 123                                                const char     *contained_type,
 124                                                DBusTypeWriter *sub);
 125 dbus_bool_t _dbus_type_writer_unrecurse       (DBusTypeWriter *writer,
 126                                                DBusTypeWriter *sub);
 127
 128
 129
 130 #endif /* DBUS_MARSHAL_RECURSIVE_H */