glib/gvariant.h

   1 /*
   2  * Copyright © 2007, 2008 Ryan Lortie
   3  * Copyright © 2009, 2010 Codethink Limited
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the licence, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Ryan Lortie <desrt@desrt.ca>
  21  */
  22
  23 #ifndef __G_VARIANT_H__
  24 #define __G_VARIANT_H__
  25
  26 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  27 #error "Only <glib.h> can be included directly."
  28 #endif
  29
  30 #include <glib/gvarianttype.h>
  31 #include <glib/gstring.h>
  32 #include <glib/gbytes.h>
  33
  34 G_BEGIN_DECLS
  35
  36 typedef struct _GVariant        GVariant;
  37
  38 typedef enum
  39 {
  40   G_VARIANT_CLASS_BOOLEAN       = 'b',
  41   G_VARIANT_CLASS_BYTE          = 'y',
  42   G_VARIANT_CLASS_INT16         = 'n',
  43   G_VARIANT_CLASS_UINT16        = 'q',
  44   G_VARIANT_CLASS_INT32         = 'i',
  45   G_VARIANT_CLASS_UINT32        = 'u',
  46   G_VARIANT_CLASS_INT64         = 'x',
  47   G_VARIANT_CLASS_UINT64        = 't',
  48   G_VARIANT_CLASS_HANDLE        = 'h',
  49   G_VARIANT_CLASS_DOUBLE        = 'd',
  50   G_VARIANT_CLASS_STRING        = 's',
  51   G_VARIANT_CLASS_OBJECT_PATH   = 'o',
  52   G_VARIANT_CLASS_SIGNATURE     = 'g',
  53   G_VARIANT_CLASS_VARIANT       = 'v',
  54   G_VARIANT_CLASS_MAYBE         = 'm',
  55   G_VARIANT_CLASS_ARRAY         = 'a',
  56   G_VARIANT_CLASS_TUPLE         = '(',
  57   G_VARIANT_CLASS_DICT_ENTRY    = '{'
  58 } GVariantClass;
  59
  60 GLIB_AVAILABLE_IN_ALL
  61 void                            g_variant_unref                         (GVariant             *value);
  62 GLIB_AVAILABLE_IN_ALL
  63 GVariant *                      g_variant_ref                           (GVariant             *value);
  64 GLIB_AVAILABLE_IN_ALL
  65 GVariant *                      g_variant_ref_sink                      (GVariant             *value);
  66 GLIB_AVAILABLE_IN_ALL
  67 gboolean                        g_variant_is_floating                   (GVariant             *value);
  68 GLIB_AVAILABLE_IN_ALL
  69 GVariant *                      g_variant_take_ref                      (GVariant             *value);
  70
  71 GLIB_AVAILABLE_IN_ALL
  72 const GVariantType *            g_variant_get_type                      (GVariant             *value);
  73 GLIB_AVAILABLE_IN_ALL
  74 const gchar *                   g_variant_get_type_string               (GVariant             *value);
  75 GLIB_AVAILABLE_IN_ALL
  76 gboolean                        g_variant_is_of_type                    (GVariant             *value,
  77                                                                          const GVariantType   *type);
  78 GLIB_AVAILABLE_IN_ALL
  79 gboolean                        g_variant_is_container                  (GVariant             *value);
  80 GLIB_AVAILABLE_IN_ALL
  81 GVariantClass                   g_variant_classify                      (GVariant             *value);
  82 GLIB_AVAILABLE_IN_ALL
  83 GVariant *                      g_variant_new_boolean                   (gboolean              value);
  84 GLIB_AVAILABLE_IN_ALL
  85 GVariant *                      g_variant_new_byte                      (guchar                value);
  86 GLIB_AVAILABLE_IN_ALL
  87 GVariant *                      g_variant_new_int16                     (gint16                value);
  88 GLIB_AVAILABLE_IN_ALL
  89 GVariant *                      g_variant_new_uint16                    (guint16               value);
  90 GLIB_AVAILABLE_IN_ALL
  91 GVariant *                      g_variant_new_int32                     (gint32                value);
  92 GLIB_AVAILABLE_IN_ALL
  93 GVariant *                      g_variant_new_uint32                    (guint32               value);
  94 GLIB_AVAILABLE_IN_ALL
  95 GVariant *                      g_variant_new_int64                     (gint64                value);
  96 GLIB_AVAILABLE_IN_ALL
  97 GVariant *                      g_variant_new_uint64                    (guint64               value);
  98 GLIB_AVAILABLE_IN_ALL
  99 GVariant *                      g_variant_new_handle                    (gint32                value);
 100 GLIB_AVAILABLE_IN_ALL
 101 GVariant *                      g_variant_new_double                    (gdouble               value);
 102 GLIB_AVAILABLE_IN_ALL
 103 GVariant *                      g_variant_new_string                    (const gchar          *string);
 104 GLIB_AVAILABLE_IN_ALL
 105 GVariant *                      g_variant_new_object_path               (const gchar          *object_path);
 106 GLIB_AVAILABLE_IN_ALL
 107 gboolean                        g_variant_is_object_path                (const gchar          *string);
 108 GLIB_AVAILABLE_IN_ALL
 109 GVariant *                      g_variant_new_signature                 (const gchar          *signature);
 110 GLIB_AVAILABLE_IN_ALL
 111 gboolean                        g_variant_is_signature                  (const gchar          *string);
 112 GLIB_AVAILABLE_IN_ALL
 113 GVariant *                      g_variant_new_variant                   (GVariant             *value);
 114 GLIB_AVAILABLE_IN_ALL
 115 GVariant *                      g_variant_new_strv                      (const gchar * const  *strv,
 116                                                                          gssize                length);
 117 GLIB_AVAILABLE_IN_2_30
 118 GVariant *                      g_variant_new_objv                      (const gchar * const  *strv,
 119                                                                          gssize                length);
 120 GLIB_AVAILABLE_IN_ALL
 121 GVariant *                      g_variant_new_bytestring                (const gchar          *string);
 122 GLIB_AVAILABLE_IN_ALL
 123 GVariant *                      g_variant_new_bytestring_array          (const gchar * const  *strv,
 124                                                                          gssize                length);
 125 GLIB_AVAILABLE_IN_ALL
 126 GVariant *                      g_variant_new_fixed_array               (const GVariantType   *element_type,
 127                                                                          gconstpointer         elements,
 128                                                                          gsize                 n_elements,
 129                                                                          gsize                 element_size);
 130 GLIB_AVAILABLE_IN_ALL
 131 gboolean                        g_variant_get_boolean                   (GVariant             *value);
 132 GLIB_AVAILABLE_IN_ALL
 133 guchar                          g_variant_get_byte                      (GVariant             *value);
 134 GLIB_AVAILABLE_IN_ALL
 135 gint16                          g_variant_get_int16                     (GVariant             *value);
 136 GLIB_AVAILABLE_IN_ALL
 137 guint16                         g_variant_get_uint16                    (GVariant             *value);
 138 GLIB_AVAILABLE_IN_ALL
 139 gint32                          g_variant_get_int32                     (GVariant             *value);
 140 GLIB_AVAILABLE_IN_ALL
 141 guint32                         g_variant_get_uint32                    (GVariant             *value);
 142 GLIB_AVAILABLE_IN_ALL
 143 gint64                          g_variant_get_int64                     (GVariant             *value);
 144 GLIB_AVAILABLE_IN_ALL
 145 guint64                         g_variant_get_uint64                    (GVariant             *value);
 146 GLIB_AVAILABLE_IN_ALL
 147 gint32                          g_variant_get_handle                    (GVariant             *value);
 148 GLIB_AVAILABLE_IN_ALL
 149 gdouble                         g_variant_get_double                    (GVariant             *value);
 150 GLIB_AVAILABLE_IN_ALL
 151 GVariant *                      g_variant_get_variant                   (GVariant             *value);
 152 GLIB_AVAILABLE_IN_ALL
 153 const gchar *                   g_variant_get_string                    (GVariant             *value,
 154                                                                          gsize                *length);
 155 GLIB_AVAILABLE_IN_ALL
 156 gchar *                         g_variant_dup_string                    (GVariant             *value,
 157                                                                          gsize                *length);
 158 GLIB_AVAILABLE_IN_ALL
 159 const gchar **                  g_variant_get_strv                      (GVariant             *value,
 160                                                                          gsize                *length);
 161 GLIB_AVAILABLE_IN_ALL
 162 gchar **                        g_variant_dup_strv                      (GVariant             *value,
 163                                                                          gsize                *length);
 164 GLIB_AVAILABLE_IN_2_30
 165 const gchar **                  g_variant_get_objv                      (GVariant             *value,
 166                                                                          gsize                *length);
 167 GLIB_AVAILABLE_IN_ALL
 168 gchar **                        g_variant_dup_objv                      (GVariant             *value,
 169                                                                          gsize                *length);
 170 GLIB_AVAILABLE_IN_ALL
 171 const gchar *                   g_variant_get_bytestring                (GVariant             *value);
 172 GLIB_AVAILABLE_IN_ALL
 173 gchar *                         g_variant_dup_bytestring                (GVariant             *value,
 174                                                                          gsize                *length);
 175 GLIB_AVAILABLE_IN_ALL
 176 const gchar **                  g_variant_get_bytestring_array          (GVariant             *value,
 177                                                                          gsize                *length);
 178 GLIB_AVAILABLE_IN_ALL
 179 gchar **                        g_variant_dup_bytestring_array          (GVariant             *value,
 180                                                                          gsize                *length);
 181
 182 GLIB_AVAILABLE_IN_ALL
 183 GVariant *                      g_variant_new_maybe                     (const GVariantType   *child_type,
 184                                                                          GVariant             *child);
 185 GLIB_AVAILABLE_IN_ALL
 186 GVariant *                      g_variant_new_array                     (const GVariantType   *child_type,
 187                                                                          GVariant * const     *children,
 188                                                                          gsize                 n_children);
 189 GLIB_AVAILABLE_IN_ALL
 190 GVariant *                      g_variant_new_tuple                     (GVariant * const     *children,
 191                                                                          gsize                 n_children);
 192 GLIB_AVAILABLE_IN_ALL
 193 GVariant *                      g_variant_new_dict_entry                (GVariant             *key,
 194                                                                          GVariant             *value);
 195
 196 GLIB_AVAILABLE_IN_ALL
 197 GVariant *                      g_variant_get_maybe                     (GVariant             *value);
 198 GLIB_AVAILABLE_IN_ALL
 199 gsize                           g_variant_n_children                    (GVariant             *value);
 200 GLIB_AVAILABLE_IN_ALL
 201 void                            g_variant_get_child                     (GVariant             *value,
 202                                                                          gsize                 index_,
 203                                                                          const gchar          *format_string,
 204                                                                          ...);
 205 GLIB_AVAILABLE_IN_ALL
 206 GVariant *                      g_variant_get_child_value               (GVariant             *value,
 207                                                                          gsize                 index_);
 208 GLIB_AVAILABLE_IN_ALL
 209 gboolean                        g_variant_lookup                        (GVariant             *dictionary,
 210                                                                          const gchar          *key,
 211                                                                          const gchar          *format_string,
 212                                                                          ...);
 213 GLIB_AVAILABLE_IN_ALL
 214 GVariant *                      g_variant_lookup_value                  (GVariant             *dictionary,
 215                                                                          const gchar          *key,
 216                                                                          const GVariantType   *expected_type);
 217 GLIB_AVAILABLE_IN_ALL
 218 gconstpointer                   g_variant_get_fixed_array               (GVariant             *value,
 219                                                                          gsize                *n_elements,
 220                                                                          gsize                 element_size);
 221
 222 GLIB_AVAILABLE_IN_ALL
 223 gsize                           g_variant_get_size                      (GVariant             *value);
 224 GLIB_AVAILABLE_IN_ALL
 225 gconstpointer                   g_variant_get_data                      (GVariant             *value);
 226 GLIB_AVAILABLE_IN_2_36
 227 GBytes *                        g_variant_get_data_as_bytes             (GVariant             *value);
 228 GLIB_AVAILABLE_IN_ALL
 229 void                            g_variant_store                         (GVariant             *value,
 230                                                                          gpointer              data);
 231
 232 GLIB_AVAILABLE_IN_ALL
 233 gchar *                         g_variant_print                         (GVariant             *value,
 234                                                                          gboolean              type_annotate);
 235 GLIB_AVAILABLE_IN_ALL
 236 GString *                       g_variant_print_string                  (GVariant             *value,
 237                                                                          GString              *string,
 238                                                                          gboolean              type_annotate);
 239
 240 GLIB_AVAILABLE_IN_ALL
 241 guint                           g_variant_hash                          (gconstpointer         value);
 242 GLIB_AVAILABLE_IN_ALL
 243 gboolean                        g_variant_equal                         (gconstpointer         one,
 244                                                                          gconstpointer         two);
 245
 246 GLIB_AVAILABLE_IN_ALL
 247 GVariant *                      g_variant_get_normal_form               (GVariant             *value);
 248 GLIB_AVAILABLE_IN_ALL
 249 gboolean                        g_variant_is_normal_form                (GVariant             *value);
 250 GLIB_AVAILABLE_IN_ALL
 251 GVariant *                      g_variant_byteswap                      (GVariant             *value);
 252
 253 GLIB_AVAILABLE_IN_2_36
 254 GVariant *                      g_variant_new_from_bytes                (const GVariantType   *type,
 255                                                                          GBytes               *bytes,
 256                                                                          gboolean              trusted);
 257 GLIB_AVAILABLE_IN_ALL
 258 GVariant *                      g_variant_new_from_data                 (const GVariantType   *type,
 259                                                                          gconstpointer         data,
 260                                                                          gsize                 size,
 261                                                                          gboolean              trusted,
 262                                                                          GDestroyNotify        notify,
 263                                                                          gpointer              user_data);
 264
 265 typedef struct _GVariantIter GVariantIter;
 266 struct _GVariantIter {
 267   /*< private >*/
 268   gsize x[16];
 269 };
 270
 271 GLIB_AVAILABLE_IN_ALL
 272 GVariantIter *                  g_variant_iter_new                      (GVariant             *value);
 273 GLIB_AVAILABLE_IN_ALL
 274 gsize                           g_variant_iter_init                     (GVariantIter         *iter,
 275                                                                          GVariant             *value);
 276 GLIB_AVAILABLE_IN_ALL
 277 GVariantIter *                  g_variant_iter_copy                     (GVariantIter         *iter);
 278 GLIB_AVAILABLE_IN_ALL
 279 gsize                           g_variant_iter_n_children               (GVariantIter         *iter);
 280 GLIB_AVAILABLE_IN_ALL
 281 void                            g_variant_iter_free                     (GVariantIter         *iter);
 282 GLIB_AVAILABLE_IN_ALL
 283 GVariant *                      g_variant_iter_next_value               (GVariantIter         *iter);
 284 GLIB_AVAILABLE_IN_ALL
 285 gboolean                        g_variant_iter_next                     (GVariantIter         *iter,
 286                                                                          const gchar          *format_string,
 287                                                                          ...);
 288 GLIB_AVAILABLE_IN_ALL
 289 gboolean                        g_variant_iter_loop                     (GVariantIter         *iter,
 290                                                                          const gchar          *format_string,
 291                                                                          ...);
 292
 293
 294 typedef struct _GVariantBuilder GVariantBuilder;
 295 struct _GVariantBuilder {
 296   /*< private >*/
 297   gsize x[16];
 298 };
 299
 300 typedef enum
 301 {
 302   G_VARIANT_PARSE_ERROR_FAILED,
 303   G_VARIANT_PARSE_ERROR_BASIC_TYPE_EXPECTED,
 304   G_VARIANT_PARSE_ERROR_CANNOT_INFER_TYPE,
 305   G_VARIANT_PARSE_ERROR_DEFINITE_TYPE_EXPECTED,
 306   G_VARIANT_PARSE_ERROR_INPUT_NOT_AT_END,
 307   G_VARIANT_PARSE_ERROR_INVALID_CHARACTER,
 308   G_VARIANT_PARSE_ERROR_INVALID_FORMAT_STRING,
 309   G_VARIANT_PARSE_ERROR_INVALID_OBJECT_PATH,
 310   G_VARIANT_PARSE_ERROR_INVALID_SIGNATURE,
 311   G_VARIANT_PARSE_ERROR_INVALID_TYPE_STRING,
 312   G_VARIANT_PARSE_ERROR_NO_COMMON_TYPE,
 313   G_VARIANT_PARSE_ERROR_NUMBER_OUT_OF_RANGE,
 314   G_VARIANT_PARSE_ERROR_NUMBER_TOO_BIG,
 315   G_VARIANT_PARSE_ERROR_TYPE_ERROR,
 316   G_VARIANT_PARSE_ERROR_UNEXPECTED_TOKEN,
 317   G_VARIANT_PARSE_ERROR_UNKNOWN_KEYWORD,
 318   G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT,
 319   G_VARIANT_PARSE_ERROR_VALUE_EXPECTED
 320 } GVariantParseError;
 321 #define G_VARIANT_PARSE_ERROR (g_variant_parser_get_error_quark ())
 322
 323 GLIB_AVAILABLE_IN_ALL
 324 GQuark                          g_variant_parser_get_error_quark        (void);
 325
 326 GLIB_AVAILABLE_IN_ALL
 327 GVariantBuilder *               g_variant_builder_new                   (const GVariantType   *type);
 328 GLIB_AVAILABLE_IN_ALL
 329 void                            g_variant_builder_unref                 (GVariantBuilder      *builder);
 330 GLIB_AVAILABLE_IN_ALL
 331 GVariantBuilder *               g_variant_builder_ref                   (GVariantBuilder      *builder);
 332 GLIB_AVAILABLE_IN_ALL
 333 void                            g_variant_builder_init                  (GVariantBuilder      *builder,
 334                                                                          const GVariantType   *type);
 335 GLIB_AVAILABLE_IN_ALL
 336 GVariant *                      g_variant_builder_end                   (GVariantBuilder      *builder);
 337 GLIB_AVAILABLE_IN_ALL
 338 void                            g_variant_builder_clear                 (GVariantBuilder      *builder);
 339 GLIB_AVAILABLE_IN_ALL
 340 void                            g_variant_builder_open                  (GVariantBuilder      *builder,
 341                                                                          const GVariantType   *type);
 342 GLIB_AVAILABLE_IN_ALL
 343 void                            g_variant_builder_close                 (GVariantBuilder      *builder);
 344 GLIB_AVAILABLE_IN_ALL
 345 void                            g_variant_builder_add_value             (GVariantBuilder      *builder,
 346                                                                          GVariant             *value);
 347 GLIB_AVAILABLE_IN_ALL
 348 void                            g_variant_builder_add                   (GVariantBuilder      *builder,
 349                                                                          const gchar          *format_string,
 350                                                                          ...);
 351 GLIB_AVAILABLE_IN_ALL
 352 void                            g_variant_builder_add_parsed            (GVariantBuilder      *builder,
 353                                                                          const gchar          *format,
 354                                                                          ...);
 355
 356 GLIB_AVAILABLE_IN_ALL
 357 GVariant *                      g_variant_new                           (const gchar          *format_string,
 358                                                                          ...);
 359 GLIB_AVAILABLE_IN_ALL
 360 void                            g_variant_get                           (GVariant             *value,
 361                                                                          const gchar          *format_string,
 362                                                                          ...);
 363 GLIB_AVAILABLE_IN_ALL
 364 GVariant *                      g_variant_new_va                        (const gchar          *format_string,
 365                                                                          const gchar         **endptr,
 366                                                                          va_list              *app);
 367 GLIB_AVAILABLE_IN_ALL
 368 void                            g_variant_get_va                        (GVariant             *value,
 369                                                                          const gchar          *format_string,
 370                                                                          const gchar         **endptr,
 371                                                                          va_list              *app);
 372 GLIB_AVAILABLE_IN_2_34
 373 gboolean                        g_variant_check_format_string           (GVariant             *value,
 374                                                                          const gchar          *format_string,
 375                                                                          gboolean              copy_only);
 376
 377 GLIB_AVAILABLE_IN_ALL
 378 GVariant *                      g_variant_parse                         (const GVariantType   *type,
 379                                                                          const gchar          *text,
 380                                                                          const gchar          *limit,
 381                                                                          const gchar         **endptr,
 382                                                                          GError              **error);
 383 GLIB_AVAILABLE_IN_ALL
 384 GVariant *                      g_variant_new_parsed                    (const gchar          *format,
 385                                                                          ...);
 386 GLIB_AVAILABLE_IN_ALL
 387 GVariant *                      g_variant_new_parsed_va                 (const gchar          *format,
 388                                                                          va_list              *app);
 389
 390 GLIB_AVAILABLE_IN_ALL
 391 gint                            g_variant_compare                       (gconstpointer one,
 392                                                                          gconstpointer two);
 393 G_END_DECLS
 394
 395 #endif /* __G_VARIANT_H__ */