dbus/dbus-connection.h

   1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
   2 /* dbus-connection.h DBusConnection object
   3  *
   4  * Copyright (C) 2002, 2003  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  21  *
  22  */
  23 #if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION)
  24 #error "Only <dbus/dbus.h> can be included directly, this file may disappear or change contents."
  25 #endif
  26
  27 #ifndef DBUS_CONNECTION_H
  28 #define DBUS_CONNECTION_H
  29
  30 #include <dbus/dbus-errors.h>
  31 #include <dbus/dbus-macros.h>
  32 #include <dbus/dbus-memory.h>
  33 #include <dbus/dbus-message.h>
  34 #include <dbus/dbus-shared.h>
  35
  36 DBUS_BEGIN_DECLS
  37
  38 /**
  39  * @addtogroup DBusConnection
  40  * @{
  41  */
  42
  43 /* documented in dbus-watch.c */
  44 typedef struct DBusWatch DBusWatch;
  45 /* documented in dbus-timeout.c */
  46 typedef struct DBusTimeout DBusTimeout;
  47 /** Opaque type representing preallocated resources so a message can be sent without further memory allocation. */
  48 typedef struct DBusPreallocatedSend DBusPreallocatedSend;
  49 /** Opaque type representing a method call that has not yet received a reply. */
  50 typedef struct DBusPendingCall DBusPendingCall;
  51 /** Opaque type representing a connection to a remote application and associated incoming/outgoing message queues. */
  52 typedef struct DBusConnection DBusConnection;
  53 /** Set of functions that must be implemented to handle messages sent to a particular object path. */
  54 typedef struct DBusObjectPathVTable DBusObjectPathVTable;
  55
  56 /**
  57  * Indicates the status of a #DBusWatch.
  58  */
  59 typedef enum
  60 {
  61   DBUS_WATCH_READABLE = 1 << 0, /**< As in POLLIN */
  62   DBUS_WATCH_WRITABLE = 1 << 1, /**< As in POLLOUT */
  63   DBUS_WATCH_ERROR    = 1 << 2, /**< As in POLLERR (can't watch for
  64                                  *   this, but can be present in
  65                                  *   current state passed to
  66                                  *   dbus_watch_handle()).
  67                                  */
  68   DBUS_WATCH_HANGUP   = 1 << 3  /**< As in POLLHUP (can't watch for
  69                                  *   it, but can be present in current
  70                                  *   state passed to
  71                                  *   dbus_watch_handle()).
  72                                  */
  73   /* Internal to libdbus, there is also _DBUS_WATCH_NVAL in dbus-watch.h */
  74 } DBusWatchFlags;
  75
  76 /**
  77  * Indicates the status of incoming data on a #DBusConnection. This determines whether
  78  * dbus_connection_dispatch() needs to be called.
  79  */
  80 typedef enum
  81 {
  82   DBUS_DISPATCH_DATA_REMAINS,  /**< There is more data to potentially convert to messages. */
  83   DBUS_DISPATCH_COMPLETE,      /**< All currently available data has been processed. */
  84   DBUS_DISPATCH_NEED_MEMORY    /**< More memory is needed to continue. */
  85 } DBusDispatchStatus;
  86
  87 /** Called when libdbus needs a new watch to be monitored by the main
  88  * loop. Returns #FALSE if it lacks enough memory to add the
  89  * watch. Set by dbus_connection_set_watch_functions() or
  90  * dbus_server_set_watch_functions().
  91  */
  92 typedef dbus_bool_t (* DBusAddWatchFunction)       (DBusWatch      *watch,
  93                                                     void           *data);
  94 /** Called when dbus_watch_get_enabled() may return a different value
  95  *  than it did before.  Set by dbus_connection_set_watch_functions()
  96  *  or dbus_server_set_watch_functions().
  97  */
  98 typedef void        (* DBusWatchToggledFunction)   (DBusWatch      *watch,
  99                                                     void           *data);
 100 /** Called when libdbus no longer needs a watch to be monitored by the
 101  * main loop. Set by dbus_connection_set_watch_functions() or
 102  * dbus_server_set_watch_functions().
 103  */
 104 typedef void        (* DBusRemoveWatchFunction)    (DBusWatch      *watch,
 105                                                     void           *data);
 106 /** Called when libdbus needs a new timeout to be monitored by the main
 107  * loop. Returns #FALSE if it lacks enough memory to add the
 108  * watch. Set by dbus_connection_set_timeout_functions() or
 109  * dbus_server_set_timeout_functions().
 110  */
 111 typedef dbus_bool_t (* DBusAddTimeoutFunction)     (DBusTimeout    *timeout,
 112                                                     void           *data);
 113 /** Called when dbus_timeout_get_enabled() may return a different
 114  * value than it did before.
 115  * Set by dbus_connection_set_timeout_functions() or
 116  * dbus_server_set_timeout_functions().
 117  */
 118 typedef void        (* DBusTimeoutToggledFunction) (DBusTimeout    *timeout,
 119                                                     void           *data);
 120 /** Called when libdbus no longer needs a timeout to be monitored by the
 121  * main loop. Set by dbus_connection_set_timeout_functions() or
 122  * dbus_server_set_timeout_functions().
 123  */
 124 typedef void        (* DBusRemoveTimeoutFunction)  (DBusTimeout    *timeout,
 125                                                     void           *data);
 126 /** Called when the return value of dbus_connection_get_dispatch_status()
 127  * may have changed. Set with dbus_connection_set_dispatch_status_function().
 128  */
 129 typedef void        (* DBusDispatchStatusFunction) (DBusConnection *connection,
 130                                                     DBusDispatchStatus new_status,
 131                                                     void           *data);
 132 /**
 133  * Called when the main loop's thread should be notified that there's now work
 134  * to do. Set with dbus_connection_set_wakeup_main_function().
 135  */
 136 typedef void        (* DBusWakeupMainFunction)     (void           *data);
 137
 138 /**
 139  * Called during authentication to check whether the given UNIX user
 140  * ID is allowed to connect, if the client tried to auth as a UNIX
 141  * user ID. Normally on Windows this would never happen. Set with
 142  * dbus_connection_set_unix_user_function().
 143  */
 144 typedef dbus_bool_t (* DBusAllowUnixUserFunction)  (DBusConnection *connection,
 145                                                     unsigned long   uid,
 146                                                     void           *data);
 147
 148 /**
 149  * Called during authentication to check whether the given Windows user
 150  * ID is allowed to connect, if the client tried to auth as a Windows
 151  * user ID. Normally on UNIX this would never happen. Set with
 152  * dbus_connection_set_windows_user_function().
 153  */
 154 typedef dbus_bool_t (* DBusAllowWindowsUserFunction)  (DBusConnection *connection,
 155                                                        const char     *user_sid,
 156                                                        void           *data);
 157
 158
 159 /**
 160  * Called when a pending call now has a reply available. Set with
 161  * dbus_pending_call_set_notify().
 162  */
 163 typedef void (* DBusPendingCallNotifyFunction) (DBusPendingCall *pending,
 164                                                 void            *user_data);
 165
 166 /**
 167  * Called when a message needs to be handled. The result indicates whether or
 168  * not more handlers should be run. Set with dbus_connection_add_filter().
 169  */
 170 typedef DBusHandlerResult (* DBusHandleMessageFunction) (DBusConnection     *connection,
 171                                                          DBusMessage        *message,
 172                                                          void               *user_data);
 173 DBUS_EXPORT
 174 DBusConnection*    dbus_connection_open                         (const char                 *address,
 175                                                                  DBusError                  *error);
 176 DBUS_EXPORT
 177 DBusConnection*    dbus_connection_open_private                 (const char                 *address,
 178                                                                  DBusError                  *error);
 179 DBUS_EXPORT
 180 DBusConnection*    dbus_connection_ref                          (DBusConnection             *connection);
 181 DBUS_EXPORT
 182 void               dbus_connection_unref                        (DBusConnection             *connection);
 183 DBUS_EXPORT
 184 void               dbus_connection_close                        (DBusConnection             *connection);
 185 DBUS_EXPORT
 186 dbus_bool_t        dbus_connection_get_is_connected             (DBusConnection             *connection);
 187 DBUS_EXPORT
 188 dbus_bool_t        dbus_connection_get_is_authenticated         (DBusConnection             *connection);
 189 DBUS_EXPORT
 190 dbus_bool_t        dbus_connection_get_is_anonymous             (DBusConnection             *connection);
 191 DBUS_EXPORT
 192 char*              dbus_connection_get_server_id                (DBusConnection             *connection);
 193 DBUS_EXPORT
 194 dbus_bool_t        dbus_connection_can_send_type                (DBusConnection             *connection,
 195                                                                  int                         type);
 196
 197 DBUS_EXPORT
 198 void               dbus_connection_set_exit_on_disconnect       (DBusConnection             *connection,
 199                                                                  dbus_bool_t                 exit_on_disconnect);
 200 DBUS_EXPORT
 201 void               dbus_connection_flush                        (DBusConnection             *connection);
 202 DBUS_EXPORT
 203 dbus_bool_t        dbus_connection_read_write_dispatch          (DBusConnection             *connection,
 204                                                                  int                         timeout_milliseconds);
 205 DBUS_EXPORT
 206 dbus_bool_t        dbus_connection_read_write                   (DBusConnection             *connection,
 207                                                                  int                         timeout_milliseconds);
 208 DBUS_EXPORT
 209 DBusMessage*       dbus_connection_borrow_message               (DBusConnection             *connection);
 210 DBUS_EXPORT
 211 void               dbus_connection_return_message               (DBusConnection             *connection,
 212                                                                  DBusMessage                *message);
 213 DBUS_EXPORT
 214 void               dbus_connection_steal_borrowed_message       (DBusConnection             *connection,
 215                                                                  DBusMessage                *message);
 216 DBUS_EXPORT
 217 DBusMessage*       dbus_connection_pop_message                  (DBusConnection             *connection);
 218 DBUS_EXPORT
 219 DBusDispatchStatus dbus_connection_get_dispatch_status          (DBusConnection             *connection);
 220 DBUS_EXPORT
 221 DBusDispatchStatus dbus_connection_dispatch                     (DBusConnection             *connection);
 222 DBUS_EXPORT
 223 dbus_bool_t        dbus_connection_has_messages_to_send         (DBusConnection *connection);
 224 DBUS_EXPORT
 225 dbus_bool_t        dbus_connection_send                         (DBusConnection             *connection,
 226                                                                  DBusMessage                *message,
 227                                                                  dbus_uint32_t              *client_serial);
 228 DBUS_EXPORT
 229 dbus_bool_t        dbus_connection_send_with_reply              (DBusConnection             *connection,
 230                                                                  DBusMessage                *message,
 231                                                                  DBusPendingCall           **pending_return,
 232                                                                  int                         timeout_milliseconds);
 233 DBUS_EXPORT
 234 DBusMessage *      dbus_connection_send_with_reply_and_block    (DBusConnection             *connection,
 235                                                                  DBusMessage                *message,
 236                                                                  int                         timeout_milliseconds,
 237                                                                  DBusError                  *error);
 238 DBUS_EXPORT
 239 dbus_bool_t        dbus_connection_set_watch_functions          (DBusConnection             *connection,
 240                                                                  DBusAddWatchFunction        add_function,
 241                                                                  DBusRemoveWatchFunction     remove_function,
 242                                                                  DBusWatchToggledFunction    toggled_function,
 243                                                                  void                       *data,
 244                                                                  DBusFreeFunction            free_data_function);
 245 DBUS_EXPORT
 246 dbus_bool_t        dbus_connection_set_timeout_functions        (DBusConnection             *connection,
 247                                                                  DBusAddTimeoutFunction      add_function,
 248                                                                  DBusRemoveTimeoutFunction   remove_function,
 249                                                                  DBusTimeoutToggledFunction  toggled_function,
 250                                                                  void                       *data,
 251                                                                  DBusFreeFunction            free_data_function);
 252 DBUS_EXPORT
 253 void               dbus_connection_set_wakeup_main_function     (DBusConnection             *connection,
 254                                                                  DBusWakeupMainFunction      wakeup_main_function,
 255                                                                  void                       *data,
 256                                                                  DBusFreeFunction            free_data_function);
 257 DBUS_EXPORT
 258 void               dbus_connection_set_dispatch_status_function (DBusConnection             *connection,
 259                                                                  DBusDispatchStatusFunction  function,
 260                                                                  void                       *data,
 261                                                                  DBusFreeFunction            free_data_function);
 262 DBUS_EXPORT
 263 dbus_bool_t        dbus_connection_get_unix_user                (DBusConnection             *connection,
 264                                                                  unsigned long              *uid);
 265 DBUS_EXPORT
 266 dbus_bool_t        dbus_connection_get_unix_process_id          (DBusConnection             *connection,
 267                                                                  unsigned long              *pid);
 268 DBUS_EXPORT
 269 dbus_bool_t        dbus_connection_get_adt_audit_session_data   (DBusConnection             *connection,
 270                                                                  void                      **data,
 271                                                                  dbus_int32_t               *data_size);
 272 DBUS_EXPORT
 273 void               dbus_connection_set_unix_user_function       (DBusConnection             *connection,
 274                                                                  DBusAllowUnixUserFunction   function,
 275                                                                  void                       *data,
 276                                                                  DBusFreeFunction            free_data_function);
 277 DBUS_EXPORT
 278 dbus_bool_t        dbus_connection_get_windows_user             (DBusConnection             *connection,
 279                                                                  char                      **windows_sid_p);
 280 DBUS_EXPORT
 281 void               dbus_connection_set_windows_user_function    (DBusConnection             *connection,
 282                                                                  DBusAllowWindowsUserFunction function,
 283                                                                  void                       *data,
 284                                                                  DBusFreeFunction            free_data_function);
 285 DBUS_EXPORT
 286 void               dbus_connection_set_allow_anonymous          (DBusConnection             *connection,
 287                                                                  dbus_bool_t                 value);
 288 DBUS_EXPORT
 289 void               dbus_connection_set_route_peer_messages      (DBusConnection             *connection,
 290                                                                  dbus_bool_t                 value);
 291
 292
 293 /* Filters */
 294
 295 DBUS_EXPORT
 296 dbus_bool_t dbus_connection_add_filter    (DBusConnection            *connection,
 297                                            DBusHandleMessageFunction  function,
 298                                            void                      *user_data,
 299                                            DBusFreeFunction           free_data_function);
 300 DBUS_EXPORT
 301 void        dbus_connection_remove_filter (DBusConnection            *connection,
 302                                            DBusHandleMessageFunction  function,
 303                                            void                      *user_data);
 304
 305
 306 /* Other */
 307 DBUS_EXPORT
 308 dbus_bool_t dbus_connection_allocate_data_slot (dbus_int32_t     *slot_p);
 309 DBUS_EXPORT
 310 void        dbus_connection_free_data_slot     (dbus_int32_t     *slot_p);
 311 DBUS_EXPORT
 312 dbus_bool_t dbus_connection_set_data           (DBusConnection   *connection,
 313                                                 dbus_int32_t      slot,
 314                                                 void             *data,
 315                                                 DBusFreeFunction  free_data_func);
 316 DBUS_EXPORT
 317 void*       dbus_connection_get_data           (DBusConnection   *connection,
 318                                                 dbus_int32_t      slot);
 319
 320 DBUS_EXPORT
 321 void        dbus_connection_set_change_sigpipe (dbus_bool_t       will_modify_sigpipe);
 322
 323 DBUS_EXPORT
 324 void dbus_connection_set_max_message_size  (DBusConnection *connection,
 325                                             long            size);
 326 DBUS_EXPORT
 327 long dbus_connection_get_max_message_size  (DBusConnection *connection);
 328 DBUS_EXPORT
 329 void dbus_connection_set_max_received_size (DBusConnection *connection,
 330                                             long            size);
 331 DBUS_EXPORT
 332 long dbus_connection_get_max_received_size (DBusConnection *connection);
 333
 334 DBUS_EXPORT
 335 void dbus_connection_set_max_message_unix_fds (DBusConnection *connection,
 336                                                long            n);
 337 DBUS_EXPORT
 338 long dbus_connection_get_max_message_unix_fds (DBusConnection *connection);
 339 DBUS_EXPORT
 340 void dbus_connection_set_max_received_unix_fds(DBusConnection *connection,
 341                                                long            n);
 342 DBUS_EXPORT
 343 long dbus_connection_get_max_received_unix_fds(DBusConnection *connection);
 344
 345 DBUS_EXPORT
 346 long dbus_connection_get_outgoing_size     (DBusConnection *connection);
 347 DBUS_EXPORT
 348 long dbus_connection_get_outgoing_unix_fds (DBusConnection *connection);
 349
 350 DBUS_EXPORT
 351 DBusPreallocatedSend* dbus_connection_preallocate_send       (DBusConnection       *connection);
 352 DBUS_EXPORT
 353 void                  dbus_connection_free_preallocated_send (DBusConnection       *connection,
 354                                                               DBusPreallocatedSend *preallocated);
 355 DBUS_EXPORT
 356 void                  dbus_connection_send_preallocated      (DBusConnection       *connection,
 357                                                               DBusPreallocatedSend *preallocated,
 358                                                               DBusMessage          *message,
 359                                                               dbus_uint32_t        *client_serial);
 360
 361
 362 /* Object tree functionality */
 363
 364 /**
 365  * Called when a #DBusObjectPathVTable is unregistered (or its connection is freed).
 366  * Found in #DBusObjectPathVTable.
 367  */
 368 typedef void              (* DBusObjectPathUnregisterFunction) (DBusConnection  *connection,
 369                                                                 void            *user_data);
 370 /**
 371  * Called when a message is sent to a registered object path. Found in
 372  * #DBusObjectPathVTable which is registered with dbus_connection_register_object_path()
 373  * or dbus_connection_register_fallback().
 374  */
 375 typedef DBusHandlerResult (* DBusObjectPathMessageFunction)    (DBusConnection  *connection,
 376                                                                 DBusMessage     *message,
 377                                                                 void            *user_data);
 378
 379 /**
 380  * Virtual table that must be implemented to handle a portion of the
 381  * object path hierarchy. Attach the vtable to a particular path using
 382  * dbus_connection_register_object_path() or
 383  * dbus_connection_register_fallback().
 384  */
 385 struct DBusObjectPathVTable
 386 {
 387   DBusObjectPathUnregisterFunction   unregister_function; /**< Function to unregister this handler */
 388   DBusObjectPathMessageFunction      message_function; /**< Function to handle messages */
 389
 390   void (* dbus_internal_pad1) (void *); /**< Reserved for future expansion */
 391   void (* dbus_internal_pad2) (void *); /**< Reserved for future expansion */
 392   void (* dbus_internal_pad3) (void *); /**< Reserved for future expansion */
 393   void (* dbus_internal_pad4) (void *); /**< Reserved for future expansion */
 394 };
 395
 396 DBUS_EXPORT
 397 dbus_bool_t dbus_connection_try_register_object_path (DBusConnection              *connection,
 398                                                       const char                  *path,
 399                                                       const DBusObjectPathVTable  *vtable,
 400                                                       void                        *user_data,
 401                                                       DBusError                   *error);
 402
 403 DBUS_EXPORT
 404 dbus_bool_t dbus_connection_register_object_path   (DBusConnection              *connection,
 405                                                     const char                  *path,
 406                                                     const DBusObjectPathVTable  *vtable,
 407                                                     void                        *user_data);
 408
 409 DBUS_EXPORT
 410 dbus_bool_t dbus_connection_try_register_fallback (DBusConnection              *connection,
 411                                                    const char                  *path,
 412                                                    const DBusObjectPathVTable  *vtable,
 413                                                    void                        *user_data,
 414                                                    DBusError                   *error);
 415
 416 DBUS_EXPORT
 417 dbus_bool_t dbus_connection_register_fallback      (DBusConnection              *connection,
 418                                                     const char                  *path,
 419                                                     const DBusObjectPathVTable  *vtable,
 420                                                     void                        *user_data);
 421 DBUS_EXPORT
 422 dbus_bool_t dbus_connection_unregister_object_path (DBusConnection              *connection,
 423                                                     const char                  *path);
 424
 425 DBUS_EXPORT
 426 dbus_bool_t dbus_connection_get_object_path_data   (DBusConnection              *connection,
 427                                                     const char                  *path,
 428                                                     void                       **data_p);
 429
 430 DBUS_EXPORT
 431 dbus_bool_t dbus_connection_list_registered        (DBusConnection              *connection,
 432                                                     const char                  *parent_path,
 433                                                     char                      ***child_entries);
 434
 435 DBUS_EXPORT
 436 dbus_bool_t dbus_connection_get_unix_fd            (DBusConnection              *connection,
 437                                                     int                         *fd);
 438 DBUS_EXPORT
 439 dbus_bool_t dbus_connection_get_socket             (DBusConnection              *connection,
 440                                                     int                         *fd);
 441
 442 /**
 443  * Clear a variable or struct member that contains a #DBusConnection.
 444  * If it does not contain #NULL, the connection that was previously
 445  * there is unreferenced with dbus_connection_unref().
 446  *
 447  * For example, this function and the similar functions for
 448  * other reference-counted types can be used in code like this:
 449  *
 450  * @code
 451  * DBusConnection *conn = NULL;
 452  * struct { ...; DBusMessage *m; ... } *larger_structure = ...;
 453  *
 454  * ... code that might set conn or m to be non-NULL ...
 455  *
 456  * dbus_clear_connection (&conn);
 457  * dbus_clear_message (&larger_structure->m);
 458  * @endcode
 459  *
 460  * @param pointer_to_connection A pointer to a variable or struct member.
 461  * pointer_to_connection must not be #NULL, but *pointer_to_connection
 462  * may be #NULL.
 463  */
 464 static inline void
 465 dbus_clear_connection (DBusConnection **pointer_to_connection)
 466 {
 467   _dbus_clear_pointer_impl (DBusConnection, pointer_to_connection,
 468                             dbus_connection_unref);
 469 }
 470
 471 /** @} */
 472
 473
 474 /**
 475  * @addtogroup DBusWatch
 476  * @{
 477  */
 478
 479 #ifndef DBUS_DISABLE_DEPRECATED
 480 DBUS_EXPORT
 481 DBUS_DEPRECATED int dbus_watch_get_fd      (DBusWatch        *watch);
 482 #endif
 483
 484 DBUS_EXPORT
 485 int          dbus_watch_get_unix_fd (DBusWatch        *watch);
 486 DBUS_EXPORT
 487 int          dbus_watch_get_socket  (DBusWatch        *watch);
 488 DBUS_EXPORT
 489 unsigned int dbus_watch_get_flags   (DBusWatch        *watch);
 490 DBUS_EXPORT
 491 void*        dbus_watch_get_data    (DBusWatch        *watch);
 492 DBUS_EXPORT
 493 void         dbus_watch_set_data    (DBusWatch        *watch,
 494                                      void             *data,
 495                                      DBusFreeFunction  free_data_function);
 496 DBUS_EXPORT
 497 dbus_bool_t  dbus_watch_handle      (DBusWatch        *watch,
 498                                      unsigned int      flags);
 499 DBUS_EXPORT
 500 dbus_bool_t  dbus_watch_get_enabled (DBusWatch        *watch);
 501
 502 /** @} */
 503
 504 /**
 505  * @addtogroup DBusTimeout
 506  * @{
 507  */
 508
 509 DBUS_EXPORT
 510 int         dbus_timeout_get_interval (DBusTimeout      *timeout);
 511 DBUS_EXPORT
 512 void*       dbus_timeout_get_data     (DBusTimeout      *timeout);
 513 DBUS_EXPORT
 514 void        dbus_timeout_set_data     (DBusTimeout      *timeout,
 515                                        void             *data,
 516                                        DBusFreeFunction  free_data_function);
 517 DBUS_EXPORT
 518 dbus_bool_t dbus_timeout_handle       (DBusTimeout      *timeout);
 519 DBUS_EXPORT
 520 dbus_bool_t dbus_timeout_get_enabled  (DBusTimeout      *timeout);
 521
 522 /** @} */
 523
 524 DBUS_END_DECLS
 525
 526 #endif /* DBUS_CONNECTION_H */