1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-server.c DBusServer object
4 * Copyright (C) 2002, 2003, 2004, 2005 Red Hat Inc.
6 * Licensed under the Academic Free License version 2.1
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.
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.
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
25 #include "dbus-server.h"
26 #include "dbus-server-unix.h"
27 #include "dbus-server-socket.h"
28 #include "dbus-string.h"
29 #ifdef DBUS_BUILD_TESTS
30 #include "dbus-server-debug-pipe.h"
32 #include "dbus-address.h"
33 #include "dbus-protocol.h"
36 * @defgroup DBusServer DBusServer
38 * @brief Server that listens for new connections.
40 * A DBusServer represents a server that other applications
41 * can connect to. Each connection from another application
42 * is represented by a #DBusConnection.
44 * @todo Thread safety hasn't been tested much for #DBusServer
45 * @todo Need notification to apps of disconnection, may matter for some transports
49 * @defgroup DBusServerInternals DBusServer implementation details
50 * @ingroup DBusInternals
51 * @brief Implementation details of DBusServer
56 #ifndef _dbus_server_trace_ref
58 _dbus_server_trace_ref (DBusServer *server,
63 static int enabled = -1;
65 _dbus_trace_ref ("DBusServer", server, old_refcount, new_refcount, why,
66 "DBUS_SERVER_TRACE", &enabled);
70 /* this is a little fragile since it assumes the address doesn't
71 * already have a guid, but it shouldn't
74 copy_address_with_guid_appended (const DBusString *address,
75 const DBusString *guid_hex)
80 if (!_dbus_string_init (&with_guid))
83 if (!_dbus_string_copy (address, 0, &with_guid,
84 _dbus_string_get_length (&with_guid)) ||
85 !_dbus_string_append (&with_guid, ",guid=") ||
86 !_dbus_string_copy (guid_hex, 0,
87 &with_guid, _dbus_string_get_length (&with_guid)))
89 _dbus_string_free (&with_guid);
94 _dbus_string_steal_data (&with_guid, &retval);
96 _dbus_string_free (&with_guid);
98 return retval; /* may be NULL if steal_data failed */
102 * Initializes the members of the DBusServer base class.
103 * Chained up to by subclass constructors.
105 * @param server the server.
106 * @param vtable the vtable for the subclass.
107 * @param address the server's address
108 * @returns #TRUE on success.
111 _dbus_server_init_base (DBusServer *server,
112 const DBusServerVTable *vtable,
113 const DBusString *address)
115 server->vtable = vtable;
117 #ifdef DBUS_DISABLE_ASSERT
118 _dbus_atomic_inc (&server->refcount);
121 dbus_int32_t old_refcount = _dbus_atomic_inc (&server->refcount);
123 _dbus_assert (old_refcount == 0);
127 server->address = NULL;
128 server->watches = NULL;
129 server->timeouts = NULL;
130 server->published_address = FALSE;
132 if (!_dbus_string_init (&server->guid_hex))
135 _dbus_generate_uuid (&server->guid);
137 if (!_dbus_uuid_encode (&server->guid, &server->guid_hex))
140 server->address = copy_address_with_guid_appended (address,
142 if (server->address == NULL)
145 _dbus_mutex_new_at_location (&server->mutex);
146 if (server->mutex == NULL)
149 server->watches = _dbus_watch_list_new ();
150 if (server->watches == NULL)
153 server->timeouts = _dbus_timeout_list_new ();
154 if (server->timeouts == NULL)
157 _dbus_data_slot_list_init (&server->slot_list);
159 _dbus_verbose ("Initialized server on address %s\n", server->address);
164 _dbus_mutex_free_at_location (&server->mutex);
165 server->mutex = NULL;
168 _dbus_watch_list_free (server->watches);
169 server->watches = NULL;
171 if (server->timeouts)
173 _dbus_timeout_list_free (server->timeouts);
174 server->timeouts = NULL;
178 dbus_free (server->address);
179 server->address = NULL;
181 _dbus_string_free (&server->guid_hex);
187 * Finalizes the members of the DBusServer base class.
188 * Chained up to by subclass finalizers.
190 * @param server the server.
193 _dbus_server_finalize_base (DBusServer *server)
195 /* We don't have the lock, but nobody should be accessing
196 * concurrently since they don't have a ref
198 #ifndef DBUS_DISABLE_CHECKS
199 _dbus_assert (!server->have_server_lock);
201 _dbus_assert (server->disconnected);
203 /* calls out to application code... */
204 _dbus_data_slot_list_free (&server->slot_list);
206 dbus_server_set_new_connection_function (server, NULL, NULL, NULL);
208 _dbus_watch_list_free (server->watches);
209 _dbus_timeout_list_free (server->timeouts);
211 _dbus_mutex_free_at_location (&server->mutex);
213 dbus_free (server->address);
215 dbus_free_string_array (server->auth_mechanisms);
217 _dbus_string_free (&server->guid_hex);
221 /** Function to be called in protected_change_watch() with refcount held */
222 typedef dbus_bool_t (* DBusWatchAddFunction) (DBusWatchList *list,
224 /** Function to be called in protected_change_watch() with refcount held */
225 typedef void (* DBusWatchRemoveFunction) (DBusWatchList *list,
227 /** Function to be called in protected_change_watch() with refcount held */
228 typedef void (* DBusWatchToggleFunction) (DBusWatchList *list,
230 dbus_bool_t enabled);
233 protected_change_watch (DBusServer *server,
235 DBusWatchAddFunction add_function,
236 DBusWatchRemoveFunction remove_function,
237 DBusWatchToggleFunction toggle_function,
240 DBusWatchList *watches;
243 HAVE_LOCK_CHECK (server);
245 /* This isn't really safe or reasonable; a better pattern is the "do
246 * everything, then drop lock and call out" one; but it has to be
247 * propagated up through all callers
250 watches = server->watches;
253 server->watches = NULL;
254 _dbus_server_ref_unlocked (server);
255 SERVER_UNLOCK (server);
258 retval = (* add_function) (watches, watch);
259 else if (remove_function)
262 (* remove_function) (watches, watch);
267 (* toggle_function) (watches, watch, enabled);
270 SERVER_LOCK (server);
271 server->watches = watches;
272 _dbus_server_unref_unlocked (server);
281 * Adds a watch for this server, chaining out to application-provided
284 * @param server the server.
285 * @param watch the watch to add.
288 _dbus_server_add_watch (DBusServer *server,
291 HAVE_LOCK_CHECK (server);
292 return protected_change_watch (server, watch,
293 _dbus_watch_list_add_watch,
298 * Removes a watch previously added with _dbus_server_remove_watch().
300 * @param server the server.
301 * @param watch the watch to remove.
304 _dbus_server_remove_watch (DBusServer *server,
307 HAVE_LOCK_CHECK (server);
308 protected_change_watch (server, watch,
310 _dbus_watch_list_remove_watch,
315 * Toggles a watch and notifies app via server's
316 * DBusWatchToggledFunction if available. It's an error to call this
317 * function on a watch that was not previously added.
319 * @param server the server.
320 * @param watch the watch to toggle.
321 * @param enabled whether to enable or disable
324 _dbus_server_toggle_watch (DBusServer *server,
328 _dbus_assert (watch != NULL);
330 HAVE_LOCK_CHECK (server);
331 protected_change_watch (server, watch,
333 _dbus_watch_list_toggle_watch,
337 /** Function to be called in protected_change_timeout() with refcount held */
338 typedef dbus_bool_t (* DBusTimeoutAddFunction) (DBusTimeoutList *list,
339 DBusTimeout *timeout);
340 /** Function to be called in protected_change_timeout() with refcount held */
341 typedef void (* DBusTimeoutRemoveFunction) (DBusTimeoutList *list,
342 DBusTimeout *timeout);
343 /** Function to be called in protected_change_timeout() with refcount held */
344 typedef void (* DBusTimeoutToggleFunction) (DBusTimeoutList *list,
345 DBusTimeout *timeout,
346 dbus_bool_t enabled);
350 protected_change_timeout (DBusServer *server,
351 DBusTimeout *timeout,
352 DBusTimeoutAddFunction add_function,
353 DBusTimeoutRemoveFunction remove_function,
354 DBusTimeoutToggleFunction toggle_function,
357 DBusTimeoutList *timeouts;
360 HAVE_LOCK_CHECK (server);
362 /* This isn't really safe or reasonable; a better pattern is the "do everything, then
363 * drop lock and call out" one; but it has to be propagated up through all callers
366 timeouts = server->timeouts;
369 server->timeouts = NULL;
370 _dbus_server_ref_unlocked (server);
371 SERVER_UNLOCK (server);
374 retval = (* add_function) (timeouts, timeout);
375 else if (remove_function)
378 (* remove_function) (timeouts, timeout);
383 (* toggle_function) (timeouts, timeout, enabled);
386 SERVER_LOCK (server);
387 server->timeouts = timeouts;
388 _dbus_server_unref_unlocked (server);
397 * Adds a timeout for this server, chaining out to
398 * application-provided timeout handlers. The timeout should be
399 * repeatedly handled with dbus_timeout_handle() at its given interval
400 * until it is removed.
402 * @param server the server.
403 * @param timeout the timeout to add.
406 _dbus_server_add_timeout (DBusServer *server,
407 DBusTimeout *timeout)
409 return protected_change_timeout (server, timeout,
410 _dbus_timeout_list_add_timeout,
415 * Removes a timeout previously added with _dbus_server_add_timeout().
417 * @param server the server.
418 * @param timeout the timeout to remove.
421 _dbus_server_remove_timeout (DBusServer *server,
422 DBusTimeout *timeout)
424 protected_change_timeout (server, timeout,
426 _dbus_timeout_list_remove_timeout,
431 * Toggles a timeout and notifies app via server's
432 * DBusTimeoutToggledFunction if available. It's an error to call this
433 * function on a timeout that was not previously added.
435 * @param server the server.
436 * @param timeout the timeout to toggle.
437 * @param enabled whether to enable or disable
440 _dbus_server_toggle_timeout (DBusServer *server,
441 DBusTimeout *timeout,
444 protected_change_timeout (server, timeout,
446 _dbus_timeout_list_toggle_timeout,
452 * Like dbus_server_ref() but does not acquire the lock (must already be held)
454 * @param server the server.
457 _dbus_server_ref_unlocked (DBusServer *server)
459 dbus_int32_t old_refcount;
461 _dbus_assert (server != NULL);
462 HAVE_LOCK_CHECK (server);
464 old_refcount = _dbus_atomic_inc (&server->refcount);
465 _dbus_assert (old_refcount > 0);
466 _dbus_server_trace_ref (server, old_refcount, old_refcount + 1,
471 * Like dbus_server_unref() but does not acquire the lock (must already be held)
473 * @param server the server.
476 _dbus_server_unref_unlocked (DBusServer *server)
478 dbus_int32_t old_refcount;
480 /* Keep this in sync with dbus_server_unref */
482 _dbus_assert (server != NULL);
484 HAVE_LOCK_CHECK (server);
486 old_refcount = _dbus_atomic_dec (&server->refcount);
487 _dbus_assert (old_refcount > 0);
489 _dbus_server_trace_ref (server, old_refcount, old_refcount - 1,
492 if (old_refcount == 1)
494 _dbus_assert (server->disconnected);
496 SERVER_UNLOCK (server);
498 _dbus_assert (server->vtable->finalize != NULL);
500 (* server->vtable->finalize) (server);
507 * @addtogroup DBusServer
514 * @typedef DBusServer
516 * An opaque object representing a server that listens for
517 * connections from other applications. Each time a connection
518 * is made, a new DBusConnection is created and made available
519 * via an application-provided DBusNewConnectionFunction.
520 * The DBusNewConnectionFunction is provided with
521 * dbus_server_set_new_connection_function().
525 static const struct {
526 DBusServerListenResult (* func) (DBusAddressEntry *entry,
527 DBusServer **server_p,
530 { _dbus_server_listen_socket }
531 , { _dbus_server_listen_platform_specific }
532 #ifdef DBUS_BUILD_TESTS
533 , { _dbus_server_listen_debug_pipe }
538 * Listens for new connections on the given address. If there are
539 * multiple semicolon-separated address entries in the address, tries
540 * each one and listens on the first one that works.
542 * Returns #NULL and sets error if listening fails for any reason.
543 * Otherwise returns a new #DBusServer.
544 * dbus_server_set_new_connection_function(),
545 * dbus_server_set_watch_functions(), and
546 * dbus_server_set_timeout_functions() should be called immediately to
547 * render the server fully functional.
549 * To free the server, applications must call first
550 * dbus_server_disconnect() and then dbus_server_unref().
552 * @param address the address of this server.
553 * @param error location to store reason for failure.
554 * @returns a new #DBusServer, or #NULL on failure.
558 dbus_server_listen (const char *address,
562 DBusAddressEntry **entries;
564 DBusError first_connect_error = DBUS_ERROR_INIT;
565 dbus_bool_t handled_once;
567 _dbus_return_val_if_fail (address != NULL, NULL);
568 _dbus_return_val_if_error_is_set (error, NULL);
570 if (!dbus_parse_address (address, &entries, &len, error))
574 handled_once = FALSE;
576 for (i = 0; i < len; i++)
580 for (j = 0; j < (int) _DBUS_N_ELEMENTS (listen_funcs); ++j)
582 DBusServerListenResult result;
583 DBusError tmp_error = DBUS_ERROR_INIT;
585 result = (* listen_funcs[j].func) (entries[i],
589 if (result == DBUS_SERVER_LISTEN_OK)
591 _dbus_assert (server != NULL);
592 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
596 else if (result == DBUS_SERVER_LISTEN_ADDRESS_ALREADY_USED)
598 _dbus_assert (server == NULL);
599 dbus_set_error (error,
600 DBUS_ERROR_ADDRESS_IN_USE,
601 "Address '%s' already used",
602 dbus_address_entry_get_method (entries[0]));
606 else if (result == DBUS_SERVER_LISTEN_BAD_ADDRESS)
608 _dbus_assert (server == NULL);
609 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
610 dbus_move_error (&tmp_error, error);
614 else if (result == DBUS_SERVER_LISTEN_NOT_HANDLED)
616 _dbus_assert (server == NULL);
617 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
619 /* keep trying addresses */
621 else if (result == DBUS_SERVER_LISTEN_DID_NOT_CONNECT)
623 _dbus_assert (server == NULL);
624 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
625 if (!dbus_error_is_set (&first_connect_error))
626 dbus_move_error (&tmp_error, &first_connect_error);
628 dbus_error_free (&tmp_error);
632 /* keep trying addresses */
636 _dbus_assert (server == NULL);
637 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
644 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
646 dbus_set_error (error,
647 DBUS_ERROR_BAD_ADDRESS,
648 "Unknown address type '%s'",
649 dbus_address_entry_get_method (entries[0]));
651 dbus_set_error (error,
652 DBUS_ERROR_BAD_ADDRESS,
653 "Empty address '%s'",
657 dbus_address_entries_free (entries);
661 _dbus_assert (error == NULL || dbus_error_is_set (&first_connect_error) ||
662 dbus_error_is_set (error));
664 if (error && dbus_error_is_set (error))
666 /* already set the error */
670 /* didn't set the error but either error should be
671 * NULL or first_connect_error should be set.
673 _dbus_assert (error == NULL || dbus_error_is_set (&first_connect_error));
674 dbus_move_error (&first_connect_error, error);
677 _DBUS_ASSERT_ERROR_IS_CLEAR (&first_connect_error); /* be sure we freed it */
678 _DBUS_ASSERT_ERROR_IS_SET (error);
684 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
690 * Increments the reference count of a DBusServer.
692 * @param server the server.
693 * @returns the server
696 dbus_server_ref (DBusServer *server)
698 dbus_int32_t old_refcount;
700 _dbus_return_val_if_fail (server != NULL, NULL);
702 /* can't get the refcount without a side-effect */
703 old_refcount = _dbus_atomic_inc (&server->refcount);
705 #ifndef DBUS_DISABLE_CHECKS
706 if (_DBUS_UNLIKELY (old_refcount <= 0))
708 /* undo side-effect first */
709 _dbus_atomic_dec (&server->refcount);
710 _dbus_warn_check_failed (_dbus_return_if_fail_warning_format,
711 _DBUS_FUNCTION_NAME, "old_refcount > 0",
717 _dbus_server_trace_ref (server, old_refcount, old_refcount + 1, "ref");
723 * Decrements the reference count of a DBusServer. Finalizes the
724 * server if the reference count reaches zero.
726 * The server must be disconnected before the refcount reaches zero.
728 * @param server the server.
731 dbus_server_unref (DBusServer *server)
733 dbus_int32_t old_refcount;
735 /* keep this in sync with unref_unlocked */
737 _dbus_return_if_fail (server != NULL);
739 /* can't get the refcount without a side-effect */
740 old_refcount = _dbus_atomic_dec (&server->refcount);
742 #ifndef DBUS_DISABLE_CHECKS
743 if (_DBUS_UNLIKELY (old_refcount <= 0))
745 /* undo side-effect first */
746 _dbus_atomic_inc (&server->refcount);
747 _dbus_warn_check_failed (_dbus_return_if_fail_warning_format,
748 _DBUS_FUNCTION_NAME, "old_refcount > 0",
754 _dbus_server_trace_ref (server, old_refcount, old_refcount - 1, "unref");
756 if (old_refcount == 1)
759 _dbus_assert (server->disconnected);
761 _dbus_assert (server->vtable->finalize != NULL);
763 (* server->vtable->finalize) (server);
768 * Releases the server's address and stops listening for
769 * new clients. If called more than once, only the first
770 * call has an effect. Does not modify the server's
773 * @param server the server.
776 dbus_server_disconnect (DBusServer *server)
778 _dbus_return_if_fail (server != NULL);
780 #ifdef DBUS_DISABLE_CHECKS
781 _dbus_atomic_inc (&server->refcount);
784 dbus_int32_t old_refcount = _dbus_atomic_inc (&server->refcount);
786 _dbus_return_if_fail (old_refcount > 0);
790 SERVER_LOCK (server);
792 _dbus_assert (server->vtable->disconnect != NULL);
794 if (!server->disconnected)
796 /* this has to be first so recursive calls to disconnect don't happen */
797 server->disconnected = TRUE;
799 (* server->vtable->disconnect) (server);
802 SERVER_UNLOCK (server);
803 dbus_server_unref (server);
807 * Returns #TRUE if the server is still listening for new connections.
809 * @param server the server.
812 dbus_server_get_is_connected (DBusServer *server)
816 _dbus_return_val_if_fail (server != NULL, FALSE);
818 SERVER_LOCK (server);
819 retval = !server->disconnected;
820 SERVER_UNLOCK (server);
826 * Returns the address of the server, as a newly-allocated
827 * string which must be freed by the caller.
829 * @param server the server
830 * @returns the address or #NULL if no memory
833 dbus_server_get_address (DBusServer *server)
837 _dbus_return_val_if_fail (server != NULL, NULL);
839 SERVER_LOCK (server);
840 retval = _dbus_strdup (server->address);
841 SERVER_UNLOCK (server);
847 * Returns the unique ID of the server, as a newly-allocated
848 * string which must be freed by the caller. This ID is
849 * normally used by clients to tell when two #DBusConnection
850 * would be equivalent (because the server address passed
851 * to dbus_connection_open() will have the same guid in the
852 * two cases). dbus_connection_open() can re-use an existing
853 * connection with the same ID instead of opening a new
856 * This is an ID unique to each #DBusServer. Remember that
857 * a #DBusServer represents only one mode of connecting,
858 * so e.g. a bus daemon can listen on multiple addresses
859 * which will mean it has multiple #DBusServer each with
862 * The ID is not a UUID in the sense of RFC4122; the details
863 * are explained in the D-Bus specification.
865 * @param server the server
866 * @returns the id of the server or #NULL if no memory
869 dbus_server_get_id (DBusServer *server)
873 _dbus_return_val_if_fail (server != NULL, NULL);
875 SERVER_LOCK (server);
877 _dbus_string_copy_data (&server->guid_hex, &retval);
878 SERVER_UNLOCK (server);
884 * Sets a function to be used for handling new connections. The given
885 * function is passed each new connection as the connection is
886 * created. If the new connection function increments the connection's
887 * reference count, the connection will stay alive. Otherwise, the
888 * connection will be unreferenced and closed. The new connection
889 * function may also close the connection itself, which is considered
890 * good form if the connection is not wanted.
892 * The connection here is private in the sense of
893 * dbus_connection_open_private(), so if the new connection function
894 * keeps a reference it must arrange for the connection to be closed.
895 * i.e. libdbus does not own this connection once the new connection
896 * function takes a reference.
898 * @param server the server.
899 * @param function a function to handle new connections.
900 * @param data data to pass to the new connection handler.
901 * @param free_data_function function to free the data.
904 dbus_server_set_new_connection_function (DBusServer *server,
905 DBusNewConnectionFunction function,
907 DBusFreeFunction free_data_function)
909 DBusFreeFunction old_free_function;
912 _dbus_return_if_fail (server != NULL);
914 SERVER_LOCK (server);
915 old_free_function = server->new_connection_free_data_function;
916 old_data = server->new_connection_data;
918 server->new_connection_function = function;
919 server->new_connection_data = data;
920 server->new_connection_free_data_function = free_data_function;
921 SERVER_UNLOCK (server);
923 if (old_free_function != NULL)
924 (* old_free_function) (old_data);
928 * Sets the watch functions for the server. These functions are
929 * responsible for making the application's main loop aware of file
930 * descriptors that need to be monitored for events.
932 * This function behaves exactly like dbus_connection_set_watch_functions();
933 * see the documentation for that routine.
935 * @param server the server.
936 * @param add_function function to begin monitoring a new descriptor.
937 * @param remove_function function to stop monitoring a descriptor.
938 * @param toggled_function function to notify when the watch is enabled/disabled
939 * @param data data to pass to add_function and remove_function.
940 * @param free_data_function function to be called to free the data.
941 * @returns #FALSE on failure (no memory)
944 dbus_server_set_watch_functions (DBusServer *server,
945 DBusAddWatchFunction add_function,
946 DBusRemoveWatchFunction remove_function,
947 DBusWatchToggledFunction toggled_function,
949 DBusFreeFunction free_data_function)
952 DBusWatchList *watches;
954 _dbus_return_val_if_fail (server != NULL, FALSE);
956 SERVER_LOCK (server);
957 watches = server->watches;
958 server->watches = NULL;
961 SERVER_UNLOCK (server);
962 result = _dbus_watch_list_set_functions (watches,
968 SERVER_LOCK (server);
972 _dbus_warn_check_failed ("Re-entrant call to %s\n", _DBUS_FUNCTION_NAME);
975 server->watches = watches;
976 SERVER_UNLOCK (server);
982 * Sets the timeout functions for the server. These functions are
983 * responsible for making the application's main loop aware of timeouts.
985 * This function behaves exactly like dbus_connection_set_timeout_functions();
986 * see the documentation for that routine.
988 * @param server the server.
989 * @param add_function function to add a timeout.
990 * @param remove_function function to remove a timeout.
991 * @param toggled_function function to notify when the timeout is enabled/disabled
992 * @param data data to pass to add_function and remove_function.
993 * @param free_data_function function to be called to free the data.
994 * @returns #FALSE on failure (no memory)
997 dbus_server_set_timeout_functions (DBusServer *server,
998 DBusAddTimeoutFunction add_function,
999 DBusRemoveTimeoutFunction remove_function,
1000 DBusTimeoutToggledFunction toggled_function,
1002 DBusFreeFunction free_data_function)
1005 DBusTimeoutList *timeouts;
1007 _dbus_return_val_if_fail (server != NULL, FALSE);
1009 SERVER_LOCK (server);
1010 timeouts = server->timeouts;
1011 server->timeouts = NULL;
1014 SERVER_UNLOCK (server);
1015 result = _dbus_timeout_list_set_functions (timeouts,
1020 free_data_function);
1021 SERVER_LOCK (server);
1025 _dbus_warn_check_failed ("Re-entrant call to %s\n", _DBUS_FUNCTION_NAME);
1028 server->timeouts = timeouts;
1029 SERVER_UNLOCK (server);
1035 * Sets the authentication mechanisms that this server offers to
1036 * clients, as a #NULL-terminated array of mechanism names. This
1037 * function only affects connections created <em>after</em> it is
1038 * called. Pass #NULL instead of an array to use all available
1039 * mechanisms (this is the default behavior).
1041 * The D-Bus specification describes some of the supported mechanisms.
1043 * @param server the server
1044 * @param mechanisms #NULL-terminated array of mechanisms
1045 * @returns #FALSE if no memory
1048 dbus_server_set_auth_mechanisms (DBusServer *server,
1049 const char **mechanisms)
1053 _dbus_return_val_if_fail (server != NULL, FALSE);
1055 SERVER_LOCK (server);
1057 if (mechanisms != NULL)
1059 copy = _dbus_dup_string_array (mechanisms);
1066 dbus_free_string_array (server->auth_mechanisms);
1067 server->auth_mechanisms = copy;
1069 SERVER_UNLOCK (server);
1075 static DBusDataSlotAllocator slot_allocator;
1076 _DBUS_DEFINE_GLOBAL_LOCK (server_slots);
1079 * Allocates an integer ID to be used for storing application-specific
1080 * data on any DBusServer. The allocated ID may then be used
1081 * with dbus_server_set_data() and dbus_server_get_data().
1082 * The slot must be initialized with -1. If a nonnegative
1083 * slot is passed in, the refcount is incremented on that
1084 * slot, rather than creating a new slot.
1086 * The allocated slot is global, i.e. all DBusServer objects will have
1087 * a slot with the given integer ID reserved.
1089 * @param slot_p address of global variable storing the slot ID
1090 * @returns #FALSE on no memory
1093 dbus_server_allocate_data_slot (dbus_int32_t *slot_p)
1095 return _dbus_data_slot_allocator_alloc (&slot_allocator,
1096 (DBusMutex **)&_DBUS_LOCK_NAME (server_slots),
1101 * Deallocates a global ID for server data slots.
1102 * dbus_server_get_data() and dbus_server_set_data()
1103 * may no longer be used with this slot.
1104 * Existing data stored on existing DBusServer objects
1105 * will be freed when the server is finalized,
1106 * but may not be retrieved (and may only be replaced
1107 * if someone else reallocates the slot).
1109 * @param slot_p address of the slot to deallocate
1112 dbus_server_free_data_slot (dbus_int32_t *slot_p)
1114 _dbus_return_if_fail (*slot_p >= 0);
1116 _dbus_data_slot_allocator_free (&slot_allocator, slot_p);
1120 * Stores a pointer on a DBusServer, along
1121 * with an optional function to be used for freeing
1122 * the data when the data is set again, or when
1123 * the server is finalized. The slot number
1124 * must have been allocated with dbus_server_allocate_data_slot().
1126 * @param server the server
1127 * @param slot the slot number
1128 * @param data the data to store
1129 * @param free_data_func finalizer function for the data
1130 * @returns #TRUE if there was enough memory to store the data
1133 dbus_server_set_data (DBusServer *server,
1136 DBusFreeFunction free_data_func)
1138 DBusFreeFunction old_free_func;
1142 _dbus_return_val_if_fail (server != NULL, FALSE);
1144 SERVER_LOCK (server);
1146 retval = _dbus_data_slot_list_set (&slot_allocator,
1148 slot, data, free_data_func,
1149 &old_free_func, &old_data);
1152 SERVER_UNLOCK (server);
1156 /* Do the actual free outside the server lock */
1158 (* old_free_func) (old_data);
1165 * Retrieves data previously set with dbus_server_set_data().
1166 * The slot must still be allocated (must not have been freed).
1168 * @param server the server
1169 * @param slot the slot to get data from
1170 * @returns the data, or #NULL if not found
1173 dbus_server_get_data (DBusServer *server,
1178 _dbus_return_val_if_fail (server != NULL, NULL);
1180 SERVER_LOCK (server);
1182 res = _dbus_data_slot_list_get (&slot_allocator,
1186 SERVER_UNLOCK (server);
1193 #ifdef DBUS_BUILD_TESTS
1194 #include "dbus-test.h"
1198 _dbus_server_test (void)
1200 const char *valid_addresses[] = {
1202 "tcp:host=localhost,port=1234",
1203 "tcp:host=localhost,port=1234;tcp:port=5678",
1205 "unix:path=./boogie",
1206 "tcp:port=1234;unix:path=./boogie",
1213 for (i = 0; i < _DBUS_N_ELEMENTS (valid_addresses); i++)
1215 DBusError error = DBUS_ERROR_INIT;
1219 server = dbus_server_listen (valid_addresses[i], &error);
1222 _dbus_warn ("server listen error: %s: %s\n", error.name, error.message);
1223 dbus_error_free (&error);
1224 _dbus_assert_not_reached ("Failed to listen for valid address.");
1227 id = dbus_server_get_id (server);
1228 _dbus_assert (id != NULL);
1229 address = dbus_server_get_address (server);
1230 _dbus_assert (address != NULL);
1232 if (strstr (address, id) == NULL)
1234 _dbus_warn ("server id '%s' is not in the server address '%s'\n",
1236 _dbus_assert_not_reached ("bad server id or address");
1240 dbus_free (address);
1242 dbus_server_disconnect (server);
1243 dbus_server_unref (server);
1249 #endif /* DBUS_BUILD_TESTS */