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00024 #include <config.h>
00025 #include "dbus-shared.h"
00026 #include "dbus-connection.h"
00027 #include "dbus-list.h"
00028 #include "dbus-timeout.h"
00029 #include "dbus-transport.h"
00030 #include "dbus-watch.h"
00031 #include "dbus-connection-internal.h"
00032 #include "dbus-pending-call-internal.h"
00033 #include "dbus-list.h"
00034 #include "dbus-hash.h"
00035 #include "dbus-message-internal.h"
00036 #include "dbus-threads.h"
00037 #include "dbus-protocol.h"
00038 #include "dbus-dataslot.h"
00039 #include "dbus-string.h"
00040 #include "dbus-pending-call.h"
00041 #include "dbus-object-tree.h"
00042 #include "dbus-threads-internal.h"
00043 #include "dbus-bus.h"
00044
00045 #ifdef DBUS_DISABLE_CHECKS
00046 #define TOOK_LOCK_CHECK(connection)
00047 #define RELEASING_LOCK_CHECK(connection)
00048 #define HAVE_LOCK_CHECK(connection)
00049 #else
00050 #define TOOK_LOCK_CHECK(connection) do { \
00051 _dbus_assert (!(connection)->have_connection_lock); \
00052 (connection)->have_connection_lock = TRUE; \
00053 } while (0)
00054 #define RELEASING_LOCK_CHECK(connection) do { \
00055 _dbus_assert ((connection)->have_connection_lock); \
00056 (connection)->have_connection_lock = FALSE; \
00057 } while (0)
00058 #define HAVE_LOCK_CHECK(connection) _dbus_assert ((connection)->have_connection_lock)
00059
00060 #endif
00061
00062 #define TRACE_LOCKS 1
00063
00064 #define CONNECTION_LOCK(connection) do { \
00065 if (TRACE_LOCKS) { _dbus_verbose (" LOCK: %s\n", _DBUS_FUNCTION_NAME); } \
00066 _dbus_mutex_lock ((connection)->mutex); \
00067 TOOK_LOCK_CHECK (connection); \
00068 } while (0)
00069
00070 #define CONNECTION_UNLOCK(connection) do { \
00071 if (TRACE_LOCKS) { _dbus_verbose (" UNLOCK: %s\n", _DBUS_FUNCTION_NAME); } \
00072 RELEASING_LOCK_CHECK (connection); \
00073 _dbus_mutex_unlock ((connection)->mutex); \
00074 } while (0)
00075
00076 #define DISPATCH_STATUS_NAME(s) \
00077 ((s) == DBUS_DISPATCH_COMPLETE ? "complete" : \
00078 (s) == DBUS_DISPATCH_DATA_REMAINS ? "data remains" : \
00079 (s) == DBUS_DISPATCH_NEED_MEMORY ? "need memory" : \
00080 "???")
00081
00202 typedef struct DBusMessageFilter DBusMessageFilter;
00203
00207 struct DBusMessageFilter
00208 {
00209 DBusAtomic refcount;
00210 DBusHandleMessageFunction function;
00211 void *user_data;
00212 DBusFreeFunction free_user_data_function;
00213 };
00214
00215
00219 struct DBusPreallocatedSend
00220 {
00221 DBusConnection *connection;
00222 DBusList *queue_link;
00223 DBusList *counter_link;
00224 };
00225
00226 static dbus_bool_t _dbus_modify_sigpipe = TRUE;
00227
00231 struct DBusConnection
00232 {
00233 DBusAtomic refcount;
00235 DBusMutex *mutex;
00237 DBusMutex *dispatch_mutex;
00238 DBusCondVar *dispatch_cond;
00239 DBusMutex *io_path_mutex;
00240 DBusCondVar *io_path_cond;
00242 DBusList *outgoing_messages;
00243 DBusList *incoming_messages;
00245 DBusMessage *message_borrowed;
00249 int n_outgoing;
00250 int n_incoming;
00252 DBusCounter *outgoing_counter;
00254 DBusTransport *transport;
00255 DBusWatchList *watches;
00256 DBusTimeoutList *timeouts;
00258 DBusList *filter_list;
00260 DBusDataSlotList slot_list;
00262 DBusHashTable *pending_replies;
00264 dbus_uint32_t client_serial;
00265 DBusList *disconnect_message_link;
00267 DBusWakeupMainFunction wakeup_main_function;
00268 void *wakeup_main_data;
00269 DBusFreeFunction free_wakeup_main_data;
00271 DBusDispatchStatusFunction dispatch_status_function;
00272 void *dispatch_status_data;
00273 DBusFreeFunction free_dispatch_status_data;
00275 DBusDispatchStatus last_dispatch_status;
00277 DBusList *link_cache;
00280 DBusObjectTree *objects;
00282 char *server_guid;
00284
00285
00286
00287
00288 dbus_bool_t dispatch_acquired;
00289 dbus_bool_t io_path_acquired;
00291 unsigned int shareable : 1;
00293 unsigned int exit_on_disconnect : 1;
00295 unsigned int route_peer_messages : 1;
00297 unsigned int disconnected_message_arrived : 1;
00301 unsigned int disconnected_message_processed : 1;
00305 #ifndef DBUS_DISABLE_CHECKS
00306 unsigned int have_connection_lock : 1;
00307 #endif
00308
00309 #ifndef DBUS_DISABLE_CHECKS
00310 int generation;
00311 #endif
00312 };
00313
00314 static DBusDispatchStatus _dbus_connection_get_dispatch_status_unlocked (DBusConnection *connection);
00315 static void _dbus_connection_update_dispatch_status_and_unlock (DBusConnection *connection,
00316 DBusDispatchStatus new_status);
00317 static void _dbus_connection_last_unref (DBusConnection *connection);
00318 static void _dbus_connection_acquire_dispatch (DBusConnection *connection);
00319 static void _dbus_connection_release_dispatch (DBusConnection *connection);
00320 static DBusDispatchStatus _dbus_connection_flush_unlocked (DBusConnection *connection);
00321 static void _dbus_connection_close_possibly_shared_and_unlock (DBusConnection *connection);
00322 static dbus_bool_t _dbus_connection_get_is_connected_unlocked (DBusConnection *connection);
00323
00324 static DBusMessageFilter *
00325 _dbus_message_filter_ref (DBusMessageFilter *filter)
00326 {
00327 _dbus_assert (filter->refcount.value > 0);
00328 _dbus_atomic_inc (&filter->refcount);
00329
00330 return filter;
00331 }
00332
00333 static void
00334 _dbus_message_filter_unref (DBusMessageFilter *filter)
00335 {
00336 _dbus_assert (filter->refcount.value > 0);
00337
00338 if (_dbus_atomic_dec (&filter->refcount) == 1)
00339 {
00340 if (filter->free_user_data_function)
00341 (* filter->free_user_data_function) (filter->user_data);
00342
00343 dbus_free (filter);
00344 }
00345 }
00346
00352 void
00353 _dbus_connection_lock (DBusConnection *connection)
00354 {
00355 CONNECTION_LOCK (connection);
00356 }
00357
00363 void
00364 _dbus_connection_unlock (DBusConnection *connection)
00365 {
00366 CONNECTION_UNLOCK (connection);
00367 }
00368
00376 static void
00377 _dbus_connection_wakeup_mainloop (DBusConnection *connection)
00378 {
00379 if (connection->wakeup_main_function)
00380 (*connection->wakeup_main_function) (connection->wakeup_main_data);
00381 }
00382
00383 #ifdef DBUS_BUILD_TESTS
00384
00394 dbus_bool_t
00395 _dbus_connection_queue_received_message (DBusConnection *connection,
00396 DBusMessage *message)
00397 {
00398 DBusList *link;
00399
00400 link = _dbus_list_alloc_link (message);
00401 if (link == NULL)
00402 return FALSE;
00403
00404 dbus_message_ref (message);
00405 _dbus_connection_queue_received_message_link (connection, link);
00406
00407 return TRUE;
00408 }
00409
00422 void
00423 _dbus_connection_test_get_locks (DBusConnection *connection,
00424 DBusMutex **mutex_loc,
00425 DBusMutex **dispatch_mutex_loc,
00426 DBusMutex **io_path_mutex_loc,
00427 DBusCondVar **dispatch_cond_loc,
00428 DBusCondVar **io_path_cond_loc)
00429 {
00430 *mutex_loc = connection->mutex;
00431 *dispatch_mutex_loc = connection->dispatch_mutex;
00432 *io_path_mutex_loc = connection->io_path_mutex;
00433 *dispatch_cond_loc = connection->dispatch_cond;
00434 *io_path_cond_loc = connection->io_path_cond;
00435 }
00436 #endif
00437
00446 void
00447 _dbus_connection_queue_received_message_link (DBusConnection *connection,
00448 DBusList *link)
00449 {
00450 DBusPendingCall *pending;
00451 dbus_int32_t reply_serial;
00452 DBusMessage *message;
00453
00454 _dbus_assert (_dbus_transport_get_is_authenticated (connection->transport));
00455
00456 _dbus_list_append_link (&connection->incoming_messages,
00457 link);
00458 message = link->data;
00459
00460
00461 reply_serial = dbus_message_get_reply_serial (message);
00462 if (reply_serial != -1)
00463 {
00464 pending = _dbus_hash_table_lookup_int (connection->pending_replies,
00465 reply_serial);
00466 if (pending != NULL)
00467 {
00468 if (_dbus_pending_call_is_timeout_added_unlocked (pending))
00469 _dbus_connection_remove_timeout_unlocked (connection,
00470 _dbus_pending_call_get_timeout_unlocked (pending));
00471
00472 _dbus_pending_call_set_timeout_added_unlocked (pending, FALSE);
00473 }
00474 }
00475
00476
00477
00478 connection->n_incoming += 1;
00479
00480 _dbus_connection_wakeup_mainloop (connection);
00481
00482 _dbus_verbose ("Message %p (%d %s %s %s '%s' reply to %u) added to incoming queue %p, %d incoming\n",
00483 message,
00484 dbus_message_get_type (message),
00485 dbus_message_get_path (message) ?
00486 dbus_message_get_path (message) :
00487 "no path",
00488 dbus_message_get_interface (message) ?
00489 dbus_message_get_interface (message) :
00490 "no interface",
00491 dbus_message_get_member (message) ?
00492 dbus_message_get_member (message) :
00493 "no member",
00494 dbus_message_get_signature (message),
00495 dbus_message_get_reply_serial (message),
00496 connection,
00497 connection->n_incoming);}
00498
00507 void
00508 _dbus_connection_queue_synthesized_message_link (DBusConnection *connection,
00509 DBusList *link)
00510 {
00511 HAVE_LOCK_CHECK (connection);
00512
00513 _dbus_list_append_link (&connection->incoming_messages, link);
00514
00515 connection->n_incoming += 1;
00516
00517 _dbus_connection_wakeup_mainloop (connection);
00518
00519 _dbus_verbose ("Synthesized message %p added to incoming queue %p, %d incoming\n",
00520 link->data, connection, connection->n_incoming);
00521 }
00522
00523
00531 dbus_bool_t
00532 _dbus_connection_has_messages_to_send_unlocked (DBusConnection *connection)
00533 {
00534 HAVE_LOCK_CHECK (connection);
00535 return connection->outgoing_messages != NULL;
00536 }
00537
00547 dbus_bool_t
00548 dbus_connection_has_messages_to_send (DBusConnection *connection)
00549 {
00550 dbus_bool_t v;
00551
00552 _dbus_return_val_if_fail (connection != NULL, FALSE);
00553
00554 CONNECTION_LOCK (connection);
00555 v = _dbus_connection_has_messages_to_send_unlocked (connection);
00556 CONNECTION_UNLOCK (connection);
00557
00558 return v;
00559 }
00560
00568 DBusMessage*
00569 _dbus_connection_get_message_to_send (DBusConnection *connection)
00570 {
00571 HAVE_LOCK_CHECK (connection);
00572
00573 return _dbus_list_get_last (&connection->outgoing_messages);
00574 }
00575
00584 void
00585 _dbus_connection_message_sent (DBusConnection *connection,
00586 DBusMessage *message)
00587 {
00588 DBusList *link;
00589
00590 HAVE_LOCK_CHECK (connection);
00591
00592
00593
00594
00595
00596
00597 link = _dbus_list_get_last_link (&connection->outgoing_messages);
00598 _dbus_assert (link != NULL);
00599 _dbus_assert (link->data == message);
00600
00601
00602 _dbus_list_unlink (&connection->outgoing_messages,
00603 link);
00604 _dbus_list_prepend_link (&connection->link_cache, link);
00605
00606 connection->n_outgoing -= 1;
00607
00608 _dbus_verbose ("Message %p (%d %s %s %s '%s') removed from outgoing queue %p, %d left to send\n",
00609 message,
00610 dbus_message_get_type (message),
00611 dbus_message_get_path (message) ?
00612 dbus_message_get_path (message) :
00613 "no path",
00614 dbus_message_get_interface (message) ?
00615 dbus_message_get_interface (message) :
00616 "no interface",
00617 dbus_message_get_member (message) ?
00618 dbus_message_get_member (message) :
00619 "no member",
00620 dbus_message_get_signature (message),
00621 connection, connection->n_outgoing);
00622
00623
00624 _dbus_message_remove_size_counter (message, connection->outgoing_counter,
00625 &link);
00626 _dbus_list_prepend_link (&connection->link_cache, link);
00627
00628 dbus_message_unref (message);
00629 }
00630
00632 typedef dbus_bool_t (* DBusWatchAddFunction) (DBusWatchList *list,
00633 DBusWatch *watch);
00635 typedef void (* DBusWatchRemoveFunction) (DBusWatchList *list,
00636 DBusWatch *watch);
00638 typedef void (* DBusWatchToggleFunction) (DBusWatchList *list,
00639 DBusWatch *watch,
00640 dbus_bool_t enabled);
00641
00642 static dbus_bool_t
00643 protected_change_watch (DBusConnection *connection,
00644 DBusWatch *watch,
00645 DBusWatchAddFunction add_function,
00646 DBusWatchRemoveFunction remove_function,
00647 DBusWatchToggleFunction toggle_function,
00648 dbus_bool_t enabled)
00649 {
00650 DBusWatchList *watches;
00651 dbus_bool_t retval;
00652
00653 HAVE_LOCK_CHECK (connection);
00654
00655
00656
00657
00658
00659 watches = connection->watches;
00660 if (watches)
00661 {
00662 connection->watches = NULL;
00663 _dbus_connection_ref_unlocked (connection);
00664 CONNECTION_UNLOCK (connection);
00665
00666 if (add_function)
00667 retval = (* add_function) (watches, watch);
00668 else if (remove_function)
00669 {
00670 retval = TRUE;
00671 (* remove_function) (watches, watch);
00672 }
00673 else
00674 {
00675 retval = TRUE;
00676 (* toggle_function) (watches, watch, enabled);
00677 }
00678
00679 CONNECTION_LOCK (connection);
00680 connection->watches = watches;
00681 _dbus_connection_unref_unlocked (connection);
00682
00683 return retval;
00684 }
00685 else
00686 return FALSE;
00687 }
00688
00689
00701 dbus_bool_t
00702 _dbus_connection_add_watch_unlocked (DBusConnection *connection,
00703 DBusWatch *watch)
00704 {
00705 return protected_change_watch (connection, watch,
00706 _dbus_watch_list_add_watch,
00707 NULL, NULL, FALSE);
00708 }
00709
00719 void
00720 _dbus_connection_remove_watch_unlocked (DBusConnection *connection,
00721 DBusWatch *watch)
00722 {
00723 protected_change_watch (connection, watch,
00724 NULL,
00725 _dbus_watch_list_remove_watch,
00726 NULL, FALSE);
00727 }
00728
00739 void
00740 _dbus_connection_toggle_watch_unlocked (DBusConnection *connection,
00741 DBusWatch *watch,
00742 dbus_bool_t enabled)
00743 {
00744 _dbus_assert (watch != NULL);
00745
00746 protected_change_watch (connection, watch,
00747 NULL, NULL,
00748 _dbus_watch_list_toggle_watch,
00749 enabled);
00750 }
00751
00753 typedef dbus_bool_t (* DBusTimeoutAddFunction) (DBusTimeoutList *list,
00754 DBusTimeout *timeout);
00756 typedef void (* DBusTimeoutRemoveFunction) (DBusTimeoutList *list,
00757 DBusTimeout *timeout);
00759 typedef void (* DBusTimeoutToggleFunction) (DBusTimeoutList *list,
00760 DBusTimeout *timeout,
00761 dbus_bool_t enabled);
00762
00763 static dbus_bool_t
00764 protected_change_timeout (DBusConnection *connection,
00765 DBusTimeout *timeout,
00766 DBusTimeoutAddFunction add_function,
00767 DBusTimeoutRemoveFunction remove_function,
00768 DBusTimeoutToggleFunction toggle_function,
00769 dbus_bool_t enabled)
00770 {
00771 DBusTimeoutList *timeouts;
00772 dbus_bool_t retval;
00773
00774 HAVE_LOCK_CHECK (connection);
00775
00776
00777
00778
00779
00780 timeouts = connection->timeouts;
00781 if (timeouts)
00782 {
00783 connection->timeouts = NULL;
00784 _dbus_connection_ref_unlocked (connection);
00785 CONNECTION_UNLOCK (connection);
00786
00787 if (add_function)
00788 retval = (* add_function) (timeouts, timeout);
00789 else if (remove_function)
00790 {
00791 retval = TRUE;
00792 (* remove_function) (timeouts, timeout);
00793 }
00794 else
00795 {
00796 retval = TRUE;
00797 (* toggle_function) (timeouts, timeout, enabled);
00798 }
00799
00800 CONNECTION_LOCK (connection);
00801 connection->timeouts = timeouts;
00802 _dbus_connection_unref_unlocked (connection);
00803
00804 return retval;
00805 }
00806 else
00807 return FALSE;
00808 }
00809
00822 dbus_bool_t
00823 _dbus_connection_add_timeout_unlocked (DBusConnection *connection,
00824 DBusTimeout *timeout)
00825 {
00826 return protected_change_timeout (connection, timeout,
00827 _dbus_timeout_list_add_timeout,
00828 NULL, NULL, FALSE);
00829 }
00830
00840 void
00841 _dbus_connection_remove_timeout_unlocked (DBusConnection *connection,
00842 DBusTimeout *timeout)
00843 {
00844 protected_change_timeout (connection, timeout,
00845 NULL,
00846 _dbus_timeout_list_remove_timeout,
00847 NULL, FALSE);
00848 }
00849
00860 void
00861 _dbus_connection_toggle_timeout_unlocked (DBusConnection *connection,
00862 DBusTimeout *timeout,
00863 dbus_bool_t enabled)
00864 {
00865 protected_change_timeout (connection, timeout,
00866 NULL, NULL,
00867 _dbus_timeout_list_toggle_timeout,
00868 enabled);
00869 }
00870
00871 static dbus_bool_t
00872 _dbus_connection_attach_pending_call_unlocked (DBusConnection *connection,
00873 DBusPendingCall *pending)
00874 {
00875 dbus_uint32_t reply_serial;
00876 DBusTimeout *timeout;
00877
00878 HAVE_LOCK_CHECK (connection);
00879
00880 reply_serial = _dbus_pending_call_get_reply_serial_unlocked (pending);
00881
00882 _dbus_assert (reply_serial != 0);
00883
00884 timeout = _dbus_pending_call_get_timeout_unlocked (pending);
00885
00886 if (!_dbus_connection_add_timeout_unlocked (connection, timeout))
00887 return FALSE;
00888
00889 if (!_dbus_hash_table_insert_int (connection->pending_replies,
00890 reply_serial,
00891 pending))
00892 {
00893 _dbus_connection_remove_timeout_unlocked (connection, timeout);
00894
00895 _dbus_pending_call_set_timeout_added_unlocked (pending, FALSE);
00896 HAVE_LOCK_CHECK (connection);
00897 return FALSE;
00898 }
00899
00900 _dbus_pending_call_set_timeout_added_unlocked (pending, TRUE);
00901
00902 _dbus_pending_call_ref_unlocked (pending);
00903
00904 HAVE_LOCK_CHECK (connection);
00905
00906 return TRUE;
00907 }
00908
00909 static void
00910 free_pending_call_on_hash_removal (void *data)
00911 {
00912 DBusPendingCall *pending;
00913 DBusConnection *connection;
00914
00915 if (data == NULL)
00916 return;
00917
00918 pending = data;
00919
00920 connection = _dbus_pending_call_get_connection_unlocked (pending);
00921
00922 HAVE_LOCK_CHECK (connection);
00923
00924 if (_dbus_pending_call_is_timeout_added_unlocked (pending))
00925 {
00926 _dbus_connection_remove_timeout_unlocked (connection,
00927 _dbus_pending_call_get_timeout_unlocked (pending));
00928
00929 _dbus_pending_call_set_timeout_added_unlocked (pending, FALSE);
00930 }
00931
00932
00933
00934
00935
00936
00937 _dbus_connection_ref_unlocked (connection);
00938 _dbus_pending_call_unref_and_unlock (pending);
00939 CONNECTION_LOCK (connection);
00940 _dbus_connection_unref_unlocked (connection);
00941 }
00942
00943 static void
00944 _dbus_connection_detach_pending_call_unlocked (DBusConnection *connection,
00945 DBusPendingCall *pending)
00946 {
00947
00948
00949
00950 _dbus_hash_table_remove_int (connection->pending_replies,
00951 _dbus_pending_call_get_reply_serial_unlocked (pending));
00952 }
00953
00954 static void
00955 _dbus_connection_detach_pending_call_and_unlock (DBusConnection *connection,
00956 DBusPendingCall *pending)
00957 {
00958
00959
00960
00961
00962
00963
00964
00965 _dbus_pending_call_ref_unlocked (pending);
00966 _dbus_hash_table_remove_int (connection->pending_replies,
00967 _dbus_pending_call_get_reply_serial_unlocked (pending));
00968 _dbus_pending_call_unref_and_unlock (pending);
00969 }
00970
00979 void
00980 _dbus_connection_remove_pending_call (DBusConnection *connection,
00981 DBusPendingCall *pending)
00982 {
00983 CONNECTION_LOCK (connection);
00984 _dbus_connection_detach_pending_call_and_unlock (connection, pending);
00985 }
00986
00996 static dbus_bool_t
00997 _dbus_connection_acquire_io_path (DBusConnection *connection,
00998 int timeout_milliseconds)
00999 {
01000 dbus_bool_t we_acquired;
01001
01002 HAVE_LOCK_CHECK (connection);
01003
01004
01005 _dbus_connection_ref_unlocked (connection);
01006
01007
01008 CONNECTION_UNLOCK (connection);
01009
01010 _dbus_verbose ("%s locking io_path_mutex\n", _DBUS_FUNCTION_NAME);
01011 _dbus_mutex_lock (connection->io_path_mutex);
01012
01013 _dbus_verbose ("%s start connection->io_path_acquired = %d timeout = %d\n",
01014 _DBUS_FUNCTION_NAME, connection->io_path_acquired, timeout_milliseconds);
01015
01016 we_acquired = FALSE;
01017
01018 if (connection->io_path_acquired)
01019 {
01020 if (timeout_milliseconds != -1)
01021 {
01022 _dbus_verbose ("%s waiting %d for IO path to be acquirable\n",
01023 _DBUS_FUNCTION_NAME, timeout_milliseconds);
01024
01025 if (!_dbus_condvar_wait_timeout (connection->io_path_cond,
01026 connection->io_path_mutex,
01027 timeout_milliseconds))
01028 {
01029
01030
01031
01032
01033
01034
01035
01036
01037 }
01038 }
01039 else
01040 {
01041 while (connection->io_path_acquired)
01042 {
01043 _dbus_verbose ("%s waiting for IO path to be acquirable\n", _DBUS_FUNCTION_NAME);
01044 _dbus_condvar_wait (connection->io_path_cond,
01045 connection->io_path_mutex);
01046 }
01047 }
01048 }
01049
01050 if (!connection->io_path_acquired)
01051 {
01052 we_acquired = TRUE;
01053 connection->io_path_acquired = TRUE;
01054 }
01055
01056 _dbus_verbose ("%s end connection->io_path_acquired = %d we_acquired = %d\n",
01057 _DBUS_FUNCTION_NAME, connection->io_path_acquired, we_acquired);
01058
01059 _dbus_verbose ("%s unlocking io_path_mutex\n", _DBUS_FUNCTION_NAME);
01060 _dbus_mutex_unlock (connection->io_path_mutex);
01061
01062 CONNECTION_LOCK (connection);
01063
01064 HAVE_LOCK_CHECK (connection);
01065
01066 _dbus_connection_unref_unlocked (connection);
01067
01068 return we_acquired;
01069 }
01070
01078 static void
01079 _dbus_connection_release_io_path (DBusConnection *connection)
01080 {
01081 HAVE_LOCK_CHECK (connection);
01082
01083 _dbus_verbose ("%s locking io_path_mutex\n", _DBUS_FUNCTION_NAME);
01084 _dbus_mutex_lock (connection->io_path_mutex);
01085
01086 _dbus_assert (connection->io_path_acquired);
01087
01088 _dbus_verbose ("%s start connection->io_path_acquired = %d\n",
01089 _DBUS_FUNCTION_NAME, connection->io_path_acquired);
01090
01091 connection->io_path_acquired = FALSE;
01092 _dbus_condvar_wake_one (connection->io_path_cond);
01093
01094 _dbus_verbose ("%s unlocking io_path_mutex\n", _DBUS_FUNCTION_NAME);
01095 _dbus_mutex_unlock (connection->io_path_mutex);
01096 }
01097
01126 void
01127 _dbus_connection_do_iteration_unlocked (DBusConnection *connection,
01128 unsigned int flags,
01129 int timeout_milliseconds)
01130 {
01131 _dbus_verbose ("%s start\n", _DBUS_FUNCTION_NAME);
01132
01133 HAVE_LOCK_CHECK (connection);
01134
01135 if (connection->n_outgoing == 0)
01136 flags &= ~DBUS_ITERATION_DO_WRITING;
01137
01138 if (_dbus_connection_acquire_io_path (connection,
01139 (flags & DBUS_ITERATION_BLOCK) ? timeout_milliseconds : 0))
01140 {
01141 HAVE_LOCK_CHECK (connection);
01142
01143 _dbus_transport_do_iteration (connection->transport,
01144 flags, timeout_milliseconds);
01145 _dbus_connection_release_io_path (connection);
01146 }
01147
01148 HAVE_LOCK_CHECK (connection);
01149
01150 _dbus_verbose ("%s end\n", _DBUS_FUNCTION_NAME);
01151 }
01152
01162 DBusConnection*
01163 _dbus_connection_new_for_transport (DBusTransport *transport)
01164 {
01165 DBusConnection *connection;
01166 DBusWatchList *watch_list;
01167 DBusTimeoutList *timeout_list;
01168 DBusHashTable *pending_replies;
01169 DBusList *disconnect_link;
01170 DBusMessage *disconnect_message;
01171 DBusCounter *outgoing_counter;
01172 DBusObjectTree *objects;
01173
01174 watch_list = NULL;
01175 connection = NULL;
01176 pending_replies = NULL;
01177 timeout_list = NULL;
01178 disconnect_link = NULL;
01179 disconnect_message = NULL;
01180 outgoing_counter = NULL;
01181 objects = NULL;
01182
01183 watch_list = _dbus_watch_list_new ();
01184 if (watch_list == NULL)
01185 goto error;
01186
01187 timeout_list = _dbus_timeout_list_new ();
01188 if (timeout_list == NULL)
01189 goto error;
01190
01191 pending_replies =
01192 _dbus_hash_table_new (DBUS_HASH_INT,
01193 NULL,
01194 (DBusFreeFunction)free_pending_call_on_hash_removal);
01195 if (pending_replies == NULL)
01196 goto error;
01197
01198 connection = dbus_new0 (DBusConnection, 1);
01199 if (connection == NULL)
01200 goto error;
01201
01202 _dbus_mutex_new_at_location (&connection->mutex);
01203 if (connection->mutex == NULL)
01204 goto error;
01205
01206 _dbus_mutex_new_at_location (&connection->io_path_mutex);
01207 if (connection->io_path_mutex == NULL)
01208 goto error;
01209
01210 _dbus_mutex_new_at_location (&connection->dispatch_mutex);
01211 if (connection->dispatch_mutex == NULL)
01212 goto error;
01213
01214 _dbus_condvar_new_at_location (&connection->dispatch_cond);
01215 if (connection->dispatch_cond == NULL)
01216 goto error;
01217
01218 _dbus_condvar_new_at_location (&connection->io_path_cond);
01219 if (connection->io_path_cond == NULL)
01220 goto error;
01221
01222 disconnect_message = dbus_message_new_signal (DBUS_PATH_LOCAL,
01223 DBUS_INTERFACE_LOCAL,
01224 "Disconnected");
01225
01226 if (disconnect_message == NULL)
01227 goto error;
01228
01229 disconnect_link = _dbus_list_alloc_link (disconnect_message);
01230 if (disconnect_link == NULL)
01231 goto error;
01232
01233 outgoing_counter = _dbus_counter_new ();
01234 if (outgoing_counter == NULL)
01235 goto error;
01236
01237 objects = _dbus_object_tree_new (connection);
01238 if (objects == NULL)
01239 goto error;
01240
01241 if (_dbus_modify_sigpipe)
01242 _dbus_disable_sigpipe ();
01243
01244 connection->refcount.value = 1;
01245 connection->transport = transport;
01246 connection->watches = watch_list;
01247 connection->timeouts = timeout_list;
01248 connection->pending_replies = pending_replies;
01249 connection->outgoing_counter = outgoing_counter;
01250 connection->filter_list = NULL;
01251 connection->last_dispatch_status = DBUS_DISPATCH_COMPLETE;
01252 connection->objects = objects;
01253 connection->exit_on_disconnect = FALSE;
01254 connection->shareable = FALSE;
01255 connection->route_peer_messages = FALSE;
01256 connection->disconnected_message_arrived = FALSE;
01257 connection->disconnected_message_processed = FALSE;
01258
01259 #ifndef DBUS_DISABLE_CHECKS
01260 connection->generation = _dbus_current_generation;
01261 #endif
01262
01263 _dbus_data_slot_list_init (&connection->slot_list);
01264
01265 connection->client_serial = 1;
01266
01267 connection->disconnect_message_link = disconnect_link;
01268
01269 CONNECTION_LOCK (connection);
01270
01271 if (!_dbus_transport_set_connection (transport, connection))
01272 {
01273 CONNECTION_UNLOCK (connection);
01274
01275 goto error;
01276 }
01277
01278 _dbus_transport_ref (transport);
01279
01280 CONNECTION_UNLOCK (connection);
01281
01282 return connection;
01283
01284 error:
01285 if (disconnect_message != NULL)
01286 dbus_message_unref (disconnect_message);
01287
01288 if (disconnect_link != NULL)
01289 _dbus_list_free_link (disconnect_link);
01290
01291 if (connection != NULL)
01292 {
01293 _dbus_condvar_free_at_location (&connection->io_path_cond);
01294 _dbus_condvar_free_at_location (&connection->dispatch_cond);
01295 _dbus_mutex_free_at_location (&connection->mutex);
01296 _dbus_mutex_free_at_location (&connection->io_path_mutex);
01297 _dbus_mutex_free_at_location (&connection->dispatch_mutex);
01298 dbus_free (connection);
01299 }
01300 if (pending_replies)
01301 _dbus_hash_table_unref (pending_replies);
01302
01303 if (watch_list)
01304 _dbus_watch_list_free (watch_list);
01305
01306 if (timeout_list)
01307 _dbus_timeout_list_free (timeout_list);
01308
01309 if (outgoing_counter)
01310 _dbus_counter_unref (outgoing_counter);
01311
01312 if (objects)
01313 _dbus_object_tree_unref (objects);
01314
01315 return NULL;
01316 }
01317
01325 DBusConnection *
01326 _dbus_connection_ref_unlocked (DBusConnection *connection)
01327 {
01328 _dbus_assert (connection != NULL);
01329 _dbus_assert (connection->generation == _dbus_current_generation);
01330
01331 HAVE_LOCK_CHECK (connection);
01332
01333 #ifdef DBUS_HAVE_ATOMIC_INT
01334 _dbus_atomic_inc (&connection->refcount);
01335 #else
01336 _dbus_assert (connection->refcount.value > 0);
01337 connection->refcount.value += 1;
01338 #endif
01339
01340 return connection;
01341 }
01342
01349 void
01350 _dbus_connection_unref_unlocked (DBusConnection *connection)
01351 {
01352 dbus_bool_t last_unref;
01353
01354 HAVE_LOCK_CHECK (connection);
01355
01356 _dbus_assert (connection != NULL);
01357
01358
01359
01360
01361
01362 #ifdef DBUS_HAVE_ATOMIC_INT
01363 last_unref = (_dbus_atomic_dec (&connection->refcount) == 1);
01364 #else
01365 _dbus_assert (connection->refcount.value > 0);
01366
01367 connection->refcount.value -= 1;
01368 last_unref = (connection->refcount.value == 0);
01369 #if 0
01370 printf ("unref_unlocked() connection %p count = %d\n", connection, connection->refcount.value);
01371 #endif
01372 #endif
01373
01374 if (last_unref)
01375 _dbus_connection_last_unref (connection);
01376 }
01377
01378 static dbus_uint32_t
01379 _dbus_connection_get_next_client_serial (DBusConnection *connection)
01380 {
01381 dbus_uint32_t serial;
01382
01383 serial = connection->client_serial++;
01384
01385 if (connection->client_serial == 0)
01386 connection->client_serial = 1;
01387
01388 return serial;
01389 }
01390
01404 dbus_bool_t
01405 _dbus_connection_handle_watch (DBusWatch *watch,
01406 unsigned int condition,
01407 void *data)
01408 {
01409 DBusConnection *connection;
01410 dbus_bool_t retval;
01411 DBusDispatchStatus status;
01412
01413 connection = data;
01414
01415 _dbus_verbose ("%s start\n", _DBUS_FUNCTION_NAME);
01416
01417 CONNECTION_LOCK (connection);
01418 _dbus_connection_acquire_io_path (connection, -1);
01419 HAVE_LOCK_CHECK (connection);
01420 retval = _dbus_transport_handle_watch (connection->transport,
01421 watch, condition);
01422
01423 _dbus_connection_release_io_path (connection);
01424
01425 HAVE_LOCK_CHECK (connection);
01426
01427 _dbus_verbose ("%s middle\n", _DBUS_FUNCTION_NAME);
01428
01429 status = _dbus_connection_get_dispatch_status_unlocked (connection);
01430
01431
01432 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
01433
01434 _dbus_verbose ("%s end\n", _DBUS_FUNCTION_NAME);
01435
01436 return retval;
01437 }
01438
01439 _DBUS_DEFINE_GLOBAL_LOCK (shared_connections);
01440 static DBusHashTable *shared_connections = NULL;
01441 static DBusList *shared_connections_no_guid = NULL;
01442
01443 static void
01444 close_connection_on_shutdown (DBusConnection *connection)
01445 {
01446 DBusMessage *message;
01447
01448 dbus_connection_ref (connection);
01449 _dbus_connection_close_possibly_shared (connection);
01450
01451
01452 while ((message = dbus_connection_pop_message (connection)))
01453 {
01454 dbus_message_unref (message);
01455 }
01456 dbus_connection_unref (connection);
01457 }
01458
01459 static void
01460 shared_connections_shutdown (void *data)
01461 {
01462 int n_entries;
01463
01464 _DBUS_LOCK (shared_connections);
01465
01466
01467 while ((n_entries = _dbus_hash_table_get_n_entries (shared_connections)) > 0)
01468 {
01469 DBusConnection *connection;
01470 DBusHashIter iter;
01471
01472 _dbus_hash_iter_init (shared_connections, &iter);
01473 _dbus_hash_iter_next (&iter);
01474
01475 connection = _dbus_hash_iter_get_value (&iter);
01476
01477 _DBUS_UNLOCK (shared_connections);
01478 close_connection_on_shutdown (connection);
01479 _DBUS_LOCK (shared_connections);
01480
01481
01482 _dbus_assert (_dbus_hash_table_get_n_entries (shared_connections) < n_entries);
01483 }
01484
01485 _dbus_assert (_dbus_hash_table_get_n_entries (shared_connections) == 0);
01486
01487 _dbus_hash_table_unref (shared_connections);
01488 shared_connections = NULL;
01489
01490 if (shared_connections_no_guid != NULL)
01491 {
01492 DBusConnection *connection;
01493 connection = _dbus_list_pop_first (&shared_connections_no_guid);
01494 while (connection != NULL)
01495 {
01496 _DBUS_UNLOCK (shared_connections);
01497 close_connection_on_shutdown (connection);
01498 _DBUS_LOCK (shared_connections);
01499 connection = _dbus_list_pop_first (&shared_connections_no_guid);
01500 }
01501 }
01502
01503 shared_connections_no_guid = NULL;
01504
01505 _DBUS_UNLOCK (shared_connections);
01506 }
01507
01508 static dbus_bool_t
01509 connection_lookup_shared (DBusAddressEntry *entry,
01510 DBusConnection **result)
01511 {
01512 _dbus_verbose ("checking for existing connection\n");
01513
01514 *result = NULL;
01515
01516 _DBUS_LOCK (shared_connections);
01517
01518 if (shared_connections == NULL)
01519 {
01520 _dbus_verbose ("creating shared_connections hash table\n");
01521
01522 shared_connections = _dbus_hash_table_new (DBUS_HASH_STRING,
01523 dbus_free,
01524 NULL);
01525 if (shared_connections == NULL)
01526 {
01527 _DBUS_UNLOCK (shared_connections);
01528 return FALSE;
01529 }
01530
01531 if (!_dbus_register_shutdown_func (shared_connections_shutdown, NULL))
01532 {
01533 _dbus_hash_table_unref (shared_connections);
01534 shared_connections = NULL;
01535 _DBUS_UNLOCK (shared_connections);
01536 return FALSE;
01537 }
01538
01539 _dbus_verbose (" successfully created shared_connections\n");
01540
01541 _DBUS_UNLOCK (shared_connections);
01542 return TRUE;
01543 }
01544 else
01545 {
01546 const char *guid;
01547
01548 guid = dbus_address_entry_get_value (entry, "guid");
01549
01550 if (guid != NULL)
01551 {
01552 DBusConnection *connection;
01553
01554 connection = _dbus_hash_table_lookup_string (shared_connections,
01555 guid);
01556
01557 if (connection)
01558 {
01559
01560
01561
01562
01563
01564
01565
01566
01567
01568
01569
01570
01571
01572
01573 CONNECTION_LOCK (connection);
01574 if (_dbus_connection_get_is_connected_unlocked (connection))
01575 {
01576 _dbus_connection_ref_unlocked (connection);
01577 *result = connection;
01578 _dbus_verbose ("looked up existing connection to server guid %s\n",
01579 guid);
01580 }
01581 else
01582 {
01583 _dbus_verbose ("looked up existing connection to server guid %s but it was disconnected so ignoring it\n",
01584 guid);
01585 }
01586 CONNECTION_UNLOCK (connection);
01587 }
01588 }
01589
01590 _DBUS_UNLOCK (shared_connections);
01591 return TRUE;
01592 }
01593 }
01594
01595 static dbus_bool_t
01596 connection_record_shared_unlocked (DBusConnection *connection,
01597 const char *guid)
01598 {
01599 char *guid_key;
01600 char *guid_in_connection;
01601
01602 HAVE_LOCK_CHECK (connection);
01603 _dbus_assert (connection->server_guid == NULL);
01604 _dbus_assert (connection->shareable);
01605
01606
01607
01608
01609
01610 _dbus_connection_ref_unlocked (connection);
01611
01612 if (guid == NULL)
01613 {
01614 _DBUS_LOCK (shared_connections);
01615
01616 if (!_dbus_list_prepend (&shared_connections_no_guid, connection))
01617 {
01618 _DBUS_UNLOCK (shared_connections);
01619 return FALSE;
01620 }
01621
01622 _DBUS_UNLOCK (shared_connections);
01623 return TRUE;
01624 }
01625
01626
01627
01628
01629
01630
01631 guid_key = _dbus_strdup (guid);
01632 if (guid_key == NULL)
01633 return FALSE;
01634
01635 guid_in_connection = _dbus_strdup (guid);
01636 if (guid_in_connection == NULL)
01637 {
01638 dbus_free (guid_key);
01639 return FALSE;
01640 }
01641
01642 _DBUS_LOCK (shared_connections);
01643 _dbus_assert (shared_connections != NULL);
01644
01645 if (!_dbus_hash_table_insert_string (shared_connections,
01646 guid_key, connection))
01647 {
01648 dbus_free (guid_key);
01649 dbus_free (guid_in_connection);
01650 _DBUS_UNLOCK (shared_connections);
01651 return FALSE;
01652 }
01653
01654 connection->server_guid = guid_in_connection;
01655
01656 _dbus_verbose ("stored connection to %s to be shared\n",
01657 connection->server_guid);
01658
01659 _DBUS_UNLOCK (shared_connections);
01660
01661 _dbus_assert (connection->server_guid != NULL);
01662
01663 return TRUE;
01664 }
01665
01666 static void
01667 connection_forget_shared_unlocked (DBusConnection *connection)
01668 {
01669 HAVE_LOCK_CHECK (connection);
01670
01671 if (!connection->shareable)
01672 return;
01673
01674 if (connection->server_guid != NULL)
01675 {
01676 _dbus_verbose ("dropping connection to %s out of the shared table\n",
01677 connection->server_guid);
01678
01679 _DBUS_LOCK (shared_connections);
01680
01681 if (!_dbus_hash_table_remove_string (shared_connections,
01682 connection->server_guid))
01683 _dbus_assert_not_reached ("connection was not in the shared table");
01684
01685 dbus_free (connection->server_guid);
01686 connection->server_guid = NULL;
01687 _DBUS_UNLOCK (shared_connections);
01688 }
01689
01690
01691 _dbus_connection_unref_unlocked (connection);
01692 }
01693
01694 static DBusConnection*
01695 connection_try_from_address_entry (DBusAddressEntry *entry,
01696 DBusError *error)
01697 {
01698 DBusTransport *transport;
01699 DBusConnection *connection;
01700
01701 transport = _dbus_transport_open (entry, error);
01702
01703 if (transport == NULL)
01704 {
01705 _DBUS_ASSERT_ERROR_IS_SET (error);
01706 return NULL;
01707 }
01708
01709 connection = _dbus_connection_new_for_transport (transport);
01710
01711 _dbus_transport_unref (transport);
01712
01713 if (connection == NULL)
01714 {
01715 _DBUS_SET_OOM (error);
01716 return NULL;
01717 }
01718
01719 #ifndef DBUS_DISABLE_CHECKS
01720 _dbus_assert (!connection->have_connection_lock);
01721 #endif
01722 return connection;
01723 }
01724
01725
01726
01727
01728
01729
01730
01731
01732
01733
01734
01735
01736
01737 static DBusConnection*
01738 _dbus_connection_open_internal (const char *address,
01739 dbus_bool_t shared,
01740 DBusError *error)
01741 {
01742 DBusConnection *connection;
01743 DBusAddressEntry **entries;
01744 DBusError tmp_error;
01745 DBusError first_error;
01746 int len, i;
01747
01748 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01749
01750 _dbus_verbose ("opening %s connection to: %s\n",
01751 shared ? "shared" : "private", address);
01752
01753 if (!dbus_parse_address (address, &entries, &len, error))
01754 return NULL;
01755
01756 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01757
01758 connection = NULL;
01759
01760 dbus_error_init (&tmp_error);
01761 dbus_error_init (&first_error);
01762 for (i = 0; i < len; i++)
01763 {
01764 if (shared)
01765 {
01766 if (!connection_lookup_shared (entries[i], &connection))
01767 _DBUS_SET_OOM (&tmp_error);
01768 }
01769
01770 if (connection == NULL)
01771 {
01772 connection = connection_try_from_address_entry (entries[i],
01773 &tmp_error);
01774
01775 if (connection != NULL && shared)
01776 {
01777 const char *guid;
01778
01779 connection->shareable = TRUE;
01780
01781
01782 guid = dbus_address_entry_get_value (entries[i], "guid");
01783
01784 CONNECTION_LOCK (connection);
01785
01786 if (!connection_record_shared_unlocked (connection, guid))
01787 {
01788 _DBUS_SET_OOM (&tmp_error);
01789 _dbus_connection_close_possibly_shared_and_unlock (connection);
01790 dbus_connection_unref (connection);
01791 connection = NULL;
01792 }
01793 else
01794 CONNECTION_UNLOCK (connection);
01795 }
01796 }
01797
01798 if (connection)
01799 break;
01800
01801 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
01802
01803 if (i == 0)
01804 dbus_move_error (&tmp_error, &first_error);
01805 else
01806 dbus_error_free (&tmp_error);
01807 }
01808
01809 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01810 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
01811
01812 if (connection == NULL)
01813 {
01814 _DBUS_ASSERT_ERROR_IS_SET (&first_error);
01815 dbus_move_error (&first_error, error);
01816 }
01817 else
01818 dbus_error_free (&first_error);
01819
01820 dbus_address_entries_free (entries);
01821 return connection;
01822 }
01823
01832 void
01833 _dbus_connection_close_possibly_shared (DBusConnection *connection)
01834 {
01835 _dbus_assert (connection != NULL);
01836 _dbus_assert (connection->generation == _dbus_current_generation);
01837
01838 CONNECTION_LOCK (connection);
01839 _dbus_connection_close_possibly_shared_and_unlock (connection);
01840 }
01841
01842 static DBusPreallocatedSend*
01843 _dbus_connection_preallocate_send_unlocked (DBusConnection *connection)
01844 {
01845 DBusPreallocatedSend *preallocated;
01846
01847 HAVE_LOCK_CHECK (connection);
01848
01849 _dbus_assert (connection != NULL);
01850
01851 preallocated = dbus_new (DBusPreallocatedSend, 1);
01852 if (preallocated == NULL)
01853 return NULL;
01854
01855 if (connection->link_cache != NULL)
01856 {
01857 preallocated->queue_link =
01858 _dbus_list_pop_first_link (&connection->link_cache);
01859 preallocated->queue_link->data = NULL;
01860 }
01861 else
01862 {
01863 preallocated->queue_link = _dbus_list_alloc_link (NULL);
01864 if (preallocated->queue_link == NULL)
01865 goto failed_0;
01866 }
01867
01868 if (connection->link_cache != NULL)
01869 {
01870 preallocated->counter_link =
01871 _dbus_list_pop_first_link (&connection->link_cache);
01872 preallocated->counter_link->data = connection->outgoing_counter;
01873 }
01874 else
01875 {
01876 preallocated->counter_link = _dbus_list_alloc_link (connection->outgoing_counter);
01877 if (preallocated->counter_link == NULL)
01878 goto failed_1;
01879 }
01880
01881 _dbus_counter_ref (preallocated->counter_link->data);
01882
01883 preallocated->connection = connection;
01884
01885 return preallocated;
01886
01887 failed_1:
01888 _dbus_list_free_link (preallocated->queue_link);
01889 failed_0:
01890 dbus_free (preallocated);
01891
01892 return NULL;
01893 }
01894
01895
01896 static void
01897 _dbus_connection_send_preallocated_unlocked_no_update (DBusConnection *connection,
01898 DBusPreallocatedSend *preallocated,
01899 DBusMessage *message,
01900 dbus_uint32_t *client_serial)
01901 {
01902 dbus_uint32_t serial;
01903 const char *sig;
01904
01905 preallocated->queue_link->data = message;
01906 _dbus_list_prepend_link (&connection->outgoing_messages,
01907 preallocated->queue_link);
01908
01909 _dbus_message_add_size_counter_link (message,
01910 preallocated->counter_link);
01911
01912 dbus_free (preallocated);
01913 preallocated = NULL;
01914
01915 dbus_message_ref (message);
01916
01917 connection->n_outgoing += 1;
01918
01919 sig = dbus_message_get_signature (message);
01920
01921 _dbus_verbose ("Message %p (%d %s %s %s '%s') for %s added to outgoing queue %p, %d pending to send\n",
01922 message,
01923 dbus_message_get_type (message),
01924 dbus_message_get_path (message) ?
01925 dbus_message_get_path (message) :
01926 "no path",
01927 dbus_message_get_interface (message) ?
01928 dbus_message_get_interface (message) :
01929 "no interface",
01930 dbus_message_get_member (message) ?
01931 dbus_message_get_member (message) :
01932 "no member",
01933 sig,
01934 dbus_message_get_destination (message) ?
01935 dbus_message_get_destination (message) :
01936 "null",
01937 connection,
01938 connection->n_outgoing);
01939
01940 if (dbus_message_get_serial (message) == 0)
01941 {
01942 serial = _dbus_connection_get_next_client_serial (connection);
01943 _dbus_message_set_serial (message, serial);
01944 if (client_serial)
01945 *client_serial = serial;
01946 }
01947 else
01948 {
01949 if (client_serial)
01950 *client_serial = dbus_message_get_serial (message);
01951 }
01952
01953 _dbus_verbose ("Message %p serial is %u\n",
01954 message, dbus_message_get_serial (message));
01955
01956 _dbus_message_lock (message);
01957
01958
01959
01960
01961 _dbus_connection_do_iteration_unlocked (connection,
01962 DBUS_ITERATION_DO_WRITING,
01963 -1);
01964
01965
01966 if (connection->n_outgoing > 0)
01967 _dbus_connection_wakeup_mainloop (connection);
01968 }
01969
01970 static void
01971 _dbus_connection_send_preallocated_and_unlock (DBusConnection *connection,
01972 DBusPreallocatedSend *preallocated,
01973 DBusMessage *message,
01974 dbus_uint32_t *client_serial)
01975 {
01976 DBusDispatchStatus status;
01977
01978 HAVE_LOCK_CHECK (connection);
01979
01980 _dbus_connection_send_preallocated_unlocked_no_update (connection,
01981 preallocated,
01982 message, client_serial);
01983
01984 _dbus_verbose ("%s middle\n", _DBUS_FUNCTION_NAME);
01985 status = _dbus_connection_get_dispatch_status_unlocked (connection);
01986
01987
01988 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
01989 }
01990
02000 dbus_bool_t
02001 _dbus_connection_send_and_unlock (DBusConnection *connection,
02002 DBusMessage *message,
02003 dbus_uint32_t *client_serial)
02004 {
02005 DBusPreallocatedSend *preallocated;
02006
02007 _dbus_assert (connection != NULL);
02008 _dbus_assert (message != NULL);
02009
02010 preallocated = _dbus_connection_preallocate_send_unlocked (connection);
02011 if (preallocated == NULL)
02012 {
02013 CONNECTION_UNLOCK (connection);
02014 return FALSE;
02015 }
02016
02017 _dbus_connection_send_preallocated_and_unlock (connection,
02018 preallocated,
02019 message,
02020 client_serial);
02021 return TRUE;
02022 }
02023
02048 void
02049 _dbus_connection_close_if_only_one_ref (DBusConnection *connection)
02050 {
02051 CONNECTION_LOCK (connection);
02052
02053 _dbus_assert (connection->refcount.value > 0);
02054
02055 if (connection->refcount.value == 1)
02056 _dbus_connection_close_possibly_shared_and_unlock (connection);
02057 else
02058 CONNECTION_UNLOCK (connection);
02059 }
02060
02061
02071 static void
02072 _dbus_memory_pause_based_on_timeout (int timeout_milliseconds)
02073 {
02074 if (timeout_milliseconds == -1)
02075 _dbus_sleep_milliseconds (1000);
02076 else if (timeout_milliseconds < 100)
02077 ;
02078 else if (timeout_milliseconds <= 1000)
02079 _dbus_sleep_milliseconds (timeout_milliseconds / 3);
02080 else
02081 _dbus_sleep_milliseconds (1000);
02082 }
02083
02084 static DBusMessage *
02085 generate_local_error_message (dbus_uint32_t serial,
02086 char *error_name,
02087 char *error_msg)
02088 {
02089 DBusMessage *message;
02090 message = dbus_message_new (DBUS_MESSAGE_TYPE_ERROR);
02091 if (!message)
02092 goto out;
02093
02094 if (!dbus_message_set_error_name (message, error_name))
02095 {
02096 dbus_message_unref (message);
02097 message = NULL;
02098 goto out;
02099 }
02100
02101 dbus_message_set_no_reply (message, TRUE);
02102
02103 if (!dbus_message_set_reply_serial (message,
02104 serial))
02105 {
02106 dbus_message_unref (message);
02107 message = NULL;
02108 goto out;
02109 }
02110
02111 if (error_msg != NULL)
02112 {
02113 DBusMessageIter iter;
02114
02115 dbus_message_iter_init_append (message, &iter);
02116 if (!dbus_message_iter_append_basic (&iter,
02117 DBUS_TYPE_STRING,
02118 &error_msg))
02119 {
02120 dbus_message_unref (message);
02121 message = NULL;
02122 goto out;
02123 }
02124 }
02125
02126 out:
02127 return message;
02128 }
02129
02130
02131
02132
02133
02134 static DBusMessage*
02135 check_for_reply_unlocked (DBusConnection *connection,
02136 dbus_uint32_t client_serial)
02137 {
02138 DBusList *link;
02139
02140 HAVE_LOCK_CHECK (connection);
02141
02142 link = _dbus_list_get_first_link (&connection->incoming_messages);
02143
02144 while (link != NULL)
02145 {
02146 DBusMessage *reply = link->data;
02147
02148 if (dbus_message_get_reply_serial (reply) == client_serial)
02149 {
02150 _dbus_list_remove_link (&connection->incoming_messages, link);
02151 connection->n_incoming -= 1;
02152 return reply;
02153 }
02154 link = _dbus_list_get_next_link (&connection->incoming_messages, link);
02155 }
02156
02157 return NULL;
02158 }
02159
02160 static void
02161 connection_timeout_and_complete_all_pending_calls_unlocked (DBusConnection *connection)
02162 {
02163
02164
02165
02166
02167
02168 while (_dbus_hash_table_get_n_entries (connection->pending_replies) > 0)
02169 {
02170 DBusPendingCall *pending;
02171 DBusHashIter iter;
02172
02173 _dbus_hash_iter_init (connection->pending_replies, &iter);
02174 _dbus_hash_iter_next (&iter);
02175
02176 pending = _dbus_hash_iter_get_value (&iter);
02177 _dbus_pending_call_ref_unlocked (pending);
02178
02179 _dbus_pending_call_queue_timeout_error_unlocked (pending,
02180 connection);
02181 _dbus_connection_remove_timeout_unlocked (connection,
02182 _dbus_pending_call_get_timeout_unlocked (pending));
02183 _dbus_pending_call_set_timeout_added_unlocked (pending, FALSE);
02184 _dbus_hash_iter_remove_entry (&iter);
02185
02186 _dbus_pending_call_unref_and_unlock (pending);
02187 CONNECTION_LOCK (connection);
02188 }
02189 HAVE_LOCK_CHECK (connection);
02190 }
02191
02192 static void
02193 complete_pending_call_and_unlock (DBusConnection *connection,
02194 DBusPendingCall *pending,
02195 DBusMessage *message)
02196 {
02197 _dbus_pending_call_set_reply_unlocked (pending, message);
02198 _dbus_pending_call_ref_unlocked (pending);
02199 _dbus_connection_detach_pending_call_and_unlock (connection, pending);
02200
02201
02202 _dbus_pending_call_complete (pending);
02203 dbus_pending_call_unref (pending);
02204 }
02205
02206 static dbus_bool_t
02207 check_for_reply_and_update_dispatch_unlocked (DBusConnection *connection,
02208 DBusPendingCall *pending)
02209 {
02210 DBusMessage *reply;
02211 DBusDispatchStatus status;
02212
02213 reply = check_for_reply_unlocked (connection,
02214 _dbus_pending_call_get_reply_serial_unlocked (pending));
02215 if (reply != NULL)
02216 {
02217 _dbus_verbose ("%s checked for reply\n", _DBUS_FUNCTION_NAME);
02218
02219 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): got reply\n");
02220
02221 complete_pending_call_and_unlock (connection, pending, reply);
02222 dbus_message_unref (reply);
02223
02224 CONNECTION_LOCK (connection);
02225 status = _dbus_connection_get_dispatch_status_unlocked (connection);
02226 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
02227 dbus_pending_call_unref (pending);
02228
02229 return TRUE;
02230 }
02231
02232 return FALSE;
02233 }
02234
02249 void
02250 _dbus_connection_block_pending_call (DBusPendingCall *pending)
02251 {
02252 long start_tv_sec, start_tv_usec;
02253 long end_tv_sec, end_tv_usec;
02254 long tv_sec, tv_usec;
02255 DBusDispatchStatus status;
02256 DBusConnection *connection;
02257 dbus_uint32_t client_serial;
02258 int timeout_milliseconds;
02259
02260 _dbus_assert (pending != NULL);
02261
02262 if (dbus_pending_call_get_completed (pending))
02263 return;
02264
02265 dbus_pending_call_ref (pending);
02266
02267 connection = _dbus_pending_call_get_connection_and_lock (pending);
02268
02269
02270 _dbus_connection_flush_unlocked (connection);
02271
02272 client_serial = _dbus_pending_call_get_reply_serial_unlocked (pending);
02273
02274
02275
02276
02277
02278 timeout_milliseconds = dbus_timeout_get_interval (_dbus_pending_call_get_timeout_unlocked (pending));
02279
02280 _dbus_get_current_time (&start_tv_sec, &start_tv_usec);
02281 end_tv_sec = start_tv_sec + timeout_milliseconds / 1000;
02282 end_tv_usec = start_tv_usec + (timeout_milliseconds % 1000) * 1000;
02283 end_tv_sec += end_tv_usec / _DBUS_USEC_PER_SECOND;
02284 end_tv_usec = end_tv_usec % _DBUS_USEC_PER_SECOND;
02285
02286 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): will block %d milliseconds for reply serial %u from %ld sec %ld usec to %ld sec %ld usec\n",
02287 timeout_milliseconds,
02288 client_serial,
02289 start_tv_sec, start_tv_usec,
02290 end_tv_sec, end_tv_usec);
02291
02292
02293
02294 if (check_for_reply_and_update_dispatch_unlocked (connection, pending))
02295 return;
02296
02297
02298
02299 _dbus_connection_do_iteration_unlocked (connection,
02300 DBUS_ITERATION_DO_READING |
02301 DBUS_ITERATION_BLOCK,
02302 timeout_milliseconds);
02303
02304 recheck_status:
02305
02306 _dbus_verbose ("%s top of recheck\n", _DBUS_FUNCTION_NAME);
02307
02308 HAVE_LOCK_CHECK (connection);
02309
02310
02311
02312 status = _dbus_connection_get_dispatch_status_unlocked (connection);
02313
02314
02315
02316
02317 if (_dbus_pending_call_get_completed_unlocked (pending))
02318 {
02319 _dbus_verbose ("Pending call completed by dispatch in %s\n", _DBUS_FUNCTION_NAME);
02320 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
02321 dbus_pending_call_unref (pending);
02322 return;
02323 }
02324
02325 if (status == DBUS_DISPATCH_DATA_REMAINS) {
02326 if (check_for_reply_and_update_dispatch_unlocked (connection, pending))
02327 return;
02328 }
02329
02330 _dbus_get_current_time (&tv_sec, &tv_usec);
02331
02332 if (!_dbus_connection_get_is_connected_unlocked (connection))
02333 {
02334 DBusMessage *error_msg;
02335
02336 error_msg = generate_local_error_message (client_serial,
02337 DBUS_ERROR_DISCONNECTED,
02338 "Connection was disconnected before a reply was received");
02339
02340
02341 complete_pending_call_and_unlock (connection, pending, error_msg);
02342 dbus_pending_call_unref (pending);
02343 return;
02344 }
02345 else if (tv_sec < start_tv_sec)
02346 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): clock set backward\n");
02347 else if (connection->disconnect_message_link == NULL)
02348 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): disconnected\n");
02349 else if (tv_sec < end_tv_sec ||
02350 (tv_sec == end_tv_sec && tv_usec < end_tv_usec))
02351 {
02352 timeout_milliseconds = (end_tv_sec - tv_sec) * 1000 +
02353 (end_tv_usec - tv_usec) / 1000;
02354 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): %d milliseconds remain\n", timeout_milliseconds);
02355 _dbus_assert (timeout_milliseconds >= 0);
02356
02357 if (status == DBUS_DISPATCH_NEED_MEMORY)
02358 {
02359
02360
02361
02362
02363 _dbus_verbose ("dbus_connection_send_with_reply_and_block() waiting for more memory\n");
02364
02365 _dbus_memory_pause_based_on_timeout (timeout_milliseconds);
02366 }
02367 else
02368 {
02369
02370 _dbus_connection_do_iteration_unlocked (connection,
02371 DBUS_ITERATION_DO_READING |
02372 DBUS_ITERATION_BLOCK,
02373 timeout_milliseconds);
02374 }
02375
02376 goto recheck_status;
02377 }
02378
02379 _dbus_verbose ("dbus_connection_send_with_reply_and_block(): Waited %ld milliseconds and got no reply\n",
02380 (tv_sec - start_tv_sec) * 1000 + (tv_usec - start_tv_usec) / 1000);
02381
02382 _dbus_assert (!_dbus_pending_call_get_completed_unlocked (pending));
02383
02384
02385 complete_pending_call_and_unlock (connection, pending, NULL);
02386
02387
02388 CONNECTION_LOCK (connection);
02389 status = _dbus_connection_get_dispatch_status_unlocked (connection);
02390 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
02391 dbus_pending_call_unref (pending);
02392 }
02393
02430 DBusConnection*
02431 dbus_connection_open (const char *address,
02432 DBusError *error)
02433 {
02434 DBusConnection *connection;
02435
02436 _dbus_return_val_if_fail (address != NULL, NULL);
02437 _dbus_return_val_if_error_is_set (error, NULL);
02438
02439 connection = _dbus_connection_open_internal (address,
02440 TRUE,
02441 error);
02442
02443 return connection;
02444 }
02445
02473 DBusConnection*
02474 dbus_connection_open_private (const char *address,
02475 DBusError *error)
02476 {
02477 DBusConnection *connection;
02478
02479 _dbus_return_val_if_fail (address != NULL, NULL);
02480 _dbus_return_val_if_error_is_set (error, NULL);
02481
02482 connection = _dbus_connection_open_internal (address,
02483 FALSE,
02484 error);
02485
02486 return connection;
02487 }
02488
02495 DBusConnection *
02496 dbus_connection_ref (DBusConnection *connection)
02497 {
02498 _dbus_return_val_if_fail (connection != NULL, NULL);
02499 _dbus_return_val_if_fail (connection->generation == _dbus_current_generation, NULL);
02500
02501
02502
02503
02504
02505 #ifdef DBUS_HAVE_ATOMIC_INT
02506 _dbus_atomic_inc (&connection->refcount);
02507 #else
02508 CONNECTION_LOCK (connection);
02509 _dbus_assert (connection->refcount.value > 0);
02510
02511 connection->refcount.value += 1;
02512 CONNECTION_UNLOCK (connection);
02513 #endif
02514
02515 return connection;
02516 }
02517
02518 static void
02519 free_outgoing_message (void *element,
02520 void *data)
02521 {
02522 DBusMessage *message = element;
02523 DBusConnection *connection = data;
02524
02525 _dbus_message_remove_size_counter (message,
02526 connection->outgoing_counter,
02527 NULL);
02528 dbus_message_unref (message);
02529 }
02530
02531
02532
02533
02534
02535 static void
02536 _dbus_connection_last_unref (DBusConnection *connection)
02537 {
02538 DBusList *link;
02539
02540 _dbus_verbose ("Finalizing connection %p\n", connection);
02541
02542 _dbus_assert (connection->refcount.value == 0);
02543
02544
02545
02546
02547 _dbus_assert (!_dbus_transport_get_is_connected (connection->transport));
02548 _dbus_assert (connection->server_guid == NULL);
02549
02550
02551 _dbus_object_tree_free_all_unlocked (connection->objects);
02552
02553 dbus_connection_set_dispatch_status_function (connection, NULL, NULL, NULL);
02554 dbus_connection_set_wakeup_main_function (connection, NULL, NULL, NULL);
02555 dbus_connection_set_unix_user_function (connection, NULL, NULL, NULL);
02556
02557 _dbus_watch_list_free (connection->watches);
02558 connection->watches = NULL;
02559
02560 _dbus_timeout_list_free (connection->timeouts);
02561 connection->timeouts = NULL;
02562
02563 _dbus_data_slot_list_free (&connection->slot_list);
02564
02565 link = _dbus_list_get_first_link (&connection->filter_list);
02566 while (link != NULL)
02567 {
02568 DBusMessageFilter *filter = link->data;
02569 DBusList *next = _dbus_list_get_next_link (&connection->filter_list, link);
02570
02571 filter->function = NULL;
02572 _dbus_message_filter_unref (filter);
02573 link->data = NULL;
02574
02575 link = next;
02576 }
02577 _dbus_list_clear (&connection->filter_list);
02578
02579
02580
02581 _dbus_object_tree_unref (connection->objects);
02582
02583 _dbus_hash_table_unref (connection->pending_replies);
02584 connection->pending_replies = NULL;
02585
02586 _dbus_list_clear (&connection->filter_list);
02587
02588 _dbus_list_foreach (&connection->outgoing_messages,
02589 free_outgoing_message,
02590 connection);
02591 _dbus_list_clear (&connection->outgoing_messages);
02592
02593 _dbus_list_foreach (&connection->incoming_messages,
02594 (DBusForeachFunction) dbus_message_unref,
02595 NULL);
02596 _dbus_list_clear (&connection->incoming_messages);
02597
02598 _dbus_counter_unref (connection->outgoing_counter);
02599
02600 _dbus_transport_unref (connection->transport);
02601
02602 if (connection->disconnect_message_link)
02603 {
02604 DBusMessage *message = connection->disconnect_message_link->data;
02605 dbus_message_unref (message);
02606 _dbus_list_free_link (connection->disconnect_message_link);
02607 }
02608
02609 _dbus_list_clear (&connection->link_cache);
02610
02611 _dbus_condvar_free_at_location (&connection->dispatch_cond);
02612 _dbus_condvar_free_at_location (&connection->io_path_cond);
02613
02614 _dbus_mutex_free_at_location (&connection->io_path_mutex);
02615 _dbus_mutex_free_at_location (&connection->dispatch_mutex);
02616
02617 _dbus_mutex_free_at_location (&connection->mutex);
02618
02619 dbus_free (connection);
02620 }
02621
02641 void
02642 dbus_connection_unref (DBusConnection *connection)
02643 {
02644 dbus_bool_t last_unref;
02645
02646 _dbus_return_if_fail (connection != NULL);
02647 _dbus_return_if_fail (connection->generation == _dbus_current_generation);
02648
02649
02650
02651
02652
02653 #ifdef DBUS_HAVE_ATOMIC_INT
02654 last_unref = (_dbus_atomic_dec (&connection->refcount) == 1);
02655 #else
02656 CONNECTION_LOCK (connection);
02657
02658 _dbus_assert (connection->refcount.value > 0);
02659
02660 connection->refcount.value -= 1;
02661 last_unref = (connection->refcount.value == 0);
02662
02663 #if 0
02664 printf ("unref() connection %p count = %d\n", connection, connection->refcount.value);
02665 #endif
02666
02667 CONNECTION_UNLOCK (connection);
02668 #endif
02669
02670 if (last_unref)
02671 {
02672 #ifndef DBUS_DISABLE_CHECKS
02673 if (_dbus_transport_get_is_connected (connection->transport))
02674 {
02675 _dbus_warn_check_failed ("The last reference on a connection was dropped without closing the connection. This is a bug in an application. See dbus_connection_unref() documentation for details.\n%s",
02676 connection->shareable ?
02677 "Most likely, the application called unref() too many times and removed a reference belonging to libdbus, since this is a shared connection.\n" :
02678 "Most likely, the application was supposed to call dbus_connection_close(), since this is a private connection.\n");
02679 return;
02680 }
02681 #endif
02682 _dbus_connection_last_unref (connection);
02683 }
02684 }
02685
02686
02687
02688
02689
02690
02691
02692
02693
02694
02695 static void
02696 _dbus_connection_close_possibly_shared_and_unlock (DBusConnection *connection)
02697 {
02698 DBusDispatchStatus status;
02699
02700 HAVE_LOCK_CHECK (connection);
02701
02702 _dbus_verbose ("Disconnecting %p\n", connection);
02703
02704
02705
02706
02707
02708 _dbus_connection_ref_unlocked (connection);
02709
02710 _dbus_transport_disconnect (connection->transport);
02711
02712
02713
02714
02715
02716
02717
02718
02719
02720
02721 status = _dbus_connection_get_dispatch_status_unlocked (connection);
02722
02723
02724 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
02725
02726
02727 dbus_connection_unref (connection);
02728 }
02729
02772 void
02773 dbus_connection_close (DBusConnection *connection)
02774 {
02775 _dbus_return_if_fail (connection != NULL);
02776 _dbus_return_if_fail (connection->generation == _dbus_current_generation);
02777
02778 CONNECTION_LOCK (connection);
02779
02780 #ifndef DBUS_DISABLE_CHECKS
02781 if (connection->shareable)
02782 {
02783 CONNECTION_UNLOCK (connection);
02784
02785 _dbus_warn_check_failed ("Applications must not close shared connections - see dbus_connection_close() docs. This is a bug in the application.\n");
02786 return;
02787 }
02788 #endif
02789
02790 _dbus_connection_close_possibly_shared_and_unlock (connection);
02791 }
02792
02793 static dbus_bool_t
02794 _dbus_connection_get_is_connected_unlocked (DBusConnection *connection)
02795 {
02796 HAVE_LOCK_CHECK (connection);
02797 return _dbus_transport_get_is_connected (connection->transport);
02798 }
02799
02813 dbus_bool_t
02814 dbus_connection_get_is_connected (DBusConnection *connection)
02815 {
02816 dbus_bool_t res;
02817
02818 _dbus_return_val_if_fail (connection != NULL, FALSE);
02819
02820 CONNECTION_LOCK (connection);
02821 res = _dbus_connection_get_is_connected_unlocked (connection);
02822 CONNECTION_UNLOCK (connection);
02823
02824 return res;
02825 }
02826
02835 dbus_bool_t
02836 dbus_connection_get_is_authenticated (DBusConnection *connection)
02837 {
02838 dbus_bool_t res;
02839
02840 _dbus_return_val_if_fail (connection != NULL, FALSE);
02841
02842 CONNECTION_LOCK (connection);
02843 res = _dbus_transport_get_is_authenticated (connection->transport);
02844 CONNECTION_UNLOCK (connection);
02845
02846 return res;
02847 }
02848
02862 void
02863 dbus_connection_set_exit_on_disconnect (DBusConnection *connection,
02864 dbus_bool_t exit_on_disconnect)
02865 {
02866 _dbus_return_if_fail (connection != NULL);
02867
02868 CONNECTION_LOCK (connection);
02869 connection->exit_on_disconnect = exit_on_disconnect != FALSE;
02870 CONNECTION_UNLOCK (connection);
02871 }
02872
02882 DBusPreallocatedSend*
02883 dbus_connection_preallocate_send (DBusConnection *connection)
02884 {
02885 DBusPreallocatedSend *preallocated;
02886
02887 _dbus_return_val_if_fail (connection != NULL, NULL);
02888
02889 CONNECTION_LOCK (connection);
02890
02891 preallocated =
02892 _dbus_connection_preallocate_send_unlocked (connection);
02893
02894 CONNECTION_UNLOCK (connection);
02895
02896 return preallocated;
02897 }
02898
02908 void
02909 dbus_connection_free_preallocated_send (DBusConnection *connection,
02910 DBusPreallocatedSend *preallocated)
02911 {
02912 _dbus_return_if_fail (connection != NULL);
02913 _dbus_return_if_fail (preallocated != NULL);
02914 _dbus_return_if_fail (connection == preallocated->connection);
02915
02916 _dbus_list_free_link (preallocated->queue_link);
02917 _dbus_counter_unref (preallocated->counter_link->data);
02918 _dbus_list_free_link (preallocated->counter_link);
02919 dbus_free (preallocated);
02920 }
02921
02934 void
02935 dbus_connection_send_preallocated (DBusConnection *connection,
02936 DBusPreallocatedSend *preallocated,
02937 DBusMessage *message,
02938 dbus_uint32_t *client_serial)
02939 {
02940 _dbus_return_if_fail (connection != NULL);
02941 _dbus_return_if_fail (preallocated != NULL);
02942 _dbus_return_if_fail (message != NULL);
02943 _dbus_return_if_fail (preallocated->connection == connection);
02944 _dbus_return_if_fail (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_METHOD_CALL ||
02945 dbus_message_get_member (message) != NULL);
02946 _dbus_return_if_fail (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_SIGNAL ||
02947 (dbus_message_get_interface (message) != NULL &&
02948 dbus_message_get_member (message) != NULL));
02949
02950 CONNECTION_LOCK (connection);
02951 _dbus_connection_send_preallocated_and_unlock (connection,
02952 preallocated,
02953 message, client_serial);
02954 }
02955
02956 static dbus_bool_t
02957 _dbus_connection_send_unlocked_no_update (DBusConnection *connection,
02958 DBusMessage *message,
02959 dbus_uint32_t *client_serial)
02960 {
02961 DBusPreallocatedSend *preallocated;
02962
02963 _dbus_assert (connection != NULL);
02964 _dbus_assert (message != NULL);
02965
02966 preallocated = _dbus_connection_preallocate_send_unlocked (connection);
02967 if (preallocated == NULL)
02968 return FALSE;
02969
02970 _dbus_connection_send_preallocated_unlocked_no_update (connection,
02971 preallocated,
02972 message,
02973 client_serial);
02974 return TRUE;
02975 }
02976
02998 dbus_bool_t
02999 dbus_connection_send (DBusConnection *connection,
03000 DBusMessage *message,
03001 dbus_uint32_t *serial)
03002 {
03003 _dbus_return_val_if_fail (connection != NULL, FALSE);
03004 _dbus_return_val_if_fail (message != NULL, FALSE);
03005
03006 CONNECTION_LOCK (connection);
03007
03008 return _dbus_connection_send_and_unlock (connection,
03009 message,
03010 serial);
03011 }
03012
03013 static dbus_bool_t
03014 reply_handler_timeout (void *data)
03015 {
03016 DBusConnection *connection;
03017 DBusDispatchStatus status;
03018 DBusPendingCall *pending = data;
03019
03020 connection = _dbus_pending_call_get_connection_and_lock (pending);
03021
03022 _dbus_pending_call_queue_timeout_error_unlocked (pending,
03023 connection);
03024 _dbus_connection_remove_timeout_unlocked (connection,
03025 _dbus_pending_call_get_timeout_unlocked (pending));
03026 _dbus_pending_call_set_timeout_added_unlocked (pending, FALSE);
03027
03028 _dbus_verbose ("%s middle\n", _DBUS_FUNCTION_NAME);
03029 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03030
03031
03032 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03033
03034 return TRUE;
03035 }
03036
03074 dbus_bool_t
03075 dbus_connection_send_with_reply (DBusConnection *connection,
03076 DBusMessage *message,
03077 DBusPendingCall **pending_return,
03078 int timeout_milliseconds)
03079 {
03080 DBusPendingCall *pending;
03081 dbus_int32_t serial = -1;
03082 DBusDispatchStatus status;
03083
03084 _dbus_return_val_if_fail (connection != NULL, FALSE);
03085 _dbus_return_val_if_fail (message != NULL, FALSE);
03086 _dbus_return_val_if_fail (timeout_milliseconds >= 0 || timeout_milliseconds == -1, FALSE);
03087
03088 if (pending_return)
03089 *pending_return = NULL;
03090
03091 CONNECTION_LOCK (connection);
03092
03093 if (!_dbus_connection_get_is_connected_unlocked (connection))
03094 {
03095 CONNECTION_UNLOCK (connection);
03096 return TRUE;
03097 }
03098
03099 pending = _dbus_pending_call_new_unlocked (connection,
03100 timeout_milliseconds,
03101 reply_handler_timeout);
03102
03103 if (pending == NULL)
03104 {
03105 CONNECTION_UNLOCK (connection);
03106 return FALSE;
03107 }
03108
03109
03110 serial = dbus_message_get_serial (message);
03111 if (serial == 0)
03112 {
03113 serial = _dbus_connection_get_next_client_serial (connection);
03114 _dbus_message_set_serial (message, serial);
03115 }
03116
03117 if (!_dbus_pending_call_set_timeout_error_unlocked (pending, message, serial))
03118 goto error;
03119
03120
03121
03122
03123
03124 if (!_dbus_connection_attach_pending_call_unlocked (connection,
03125 pending))
03126 goto error;
03127
03128 if (!_dbus_connection_send_unlocked_no_update (connection, message, NULL))
03129 {
03130 _dbus_connection_detach_pending_call_and_unlock (connection,
03131 pending);
03132 goto error_unlocked;
03133 }
03134
03135 if (pending_return)
03136 *pending_return = pending;
03137 else
03138 {
03139 _dbus_connection_detach_pending_call_unlocked (connection, pending);
03140
03141
03142
03143 }
03144
03145 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03146
03147
03148 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03149
03150 if (pending_return == NULL)
03151 dbus_pending_call_unref (pending);
03152
03153 return TRUE;
03154
03155 error:
03156 CONNECTION_UNLOCK (connection);
03157 error_unlocked:
03158 dbus_pending_call_unref (pending);
03159 return FALSE;
03160 }
03161
03192 DBusMessage*
03193 dbus_connection_send_with_reply_and_block (DBusConnection *connection,
03194 DBusMessage *message,
03195 int timeout_milliseconds,
03196 DBusError *error)
03197 {
03198 DBusMessage *reply;
03199 DBusPendingCall *pending;
03200
03201 _dbus_return_val_if_fail (connection != NULL, NULL);
03202 _dbus_return_val_if_fail (message != NULL, NULL);
03203 _dbus_return_val_if_fail (timeout_milliseconds >= 0 || timeout_milliseconds == -1, NULL);
03204 _dbus_return_val_if_error_is_set (error, NULL);
03205
03206 if (!dbus_connection_send_with_reply (connection, message,
03207 &pending, timeout_milliseconds))
03208 {
03209 _DBUS_SET_OOM (error);
03210 return NULL;
03211 }
03212
03213 if (pending == NULL)
03214 {
03215 dbus_set_error (error, DBUS_ERROR_DISCONNECTED, "Connection is closed");
03216 return NULL;
03217 }
03218
03219 dbus_pending_call_block (pending);
03220
03221 reply = dbus_pending_call_steal_reply (pending);
03222 dbus_pending_call_unref (pending);
03223
03224
03225
03226
03227 _dbus_assert (reply != NULL);
03228
03229 if (dbus_set_error_from_message (error, reply))
03230 {
03231 dbus_message_unref (reply);
03232 return NULL;
03233 }
03234 else
03235 return reply;
03236 }
03237
03246 DBusDispatchStatus
03247 _dbus_connection_flush_unlocked (DBusConnection *connection)
03248 {
03249
03250
03251
03252
03253
03254 DBusDispatchStatus status;
03255
03256 HAVE_LOCK_CHECK (connection);
03257
03258 while (connection->n_outgoing > 0 &&
03259 _dbus_connection_get_is_connected_unlocked (connection))
03260 {
03261 _dbus_verbose ("doing iteration in %s\n", _DBUS_FUNCTION_NAME);
03262 HAVE_LOCK_CHECK (connection);
03263 _dbus_connection_do_iteration_unlocked (connection,
03264 DBUS_ITERATION_DO_READING |
03265 DBUS_ITERATION_DO_WRITING |
03266 DBUS_ITERATION_BLOCK,
03267 -1);
03268 }
03269
03270 HAVE_LOCK_CHECK (connection);
03271 _dbus_verbose ("%s middle\n", _DBUS_FUNCTION_NAME);
03272 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03273
03274 HAVE_LOCK_CHECK (connection);
03275 return status;
03276 }
03277
03283 void
03284 dbus_connection_flush (DBusConnection *connection)
03285 {
03286
03287
03288
03289
03290
03291 DBusDispatchStatus status;
03292
03293 _dbus_return_if_fail (connection != NULL);
03294
03295 CONNECTION_LOCK (connection);
03296
03297 status = _dbus_connection_flush_unlocked (connection);
03298
03299 HAVE_LOCK_CHECK (connection);
03300
03301 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03302
03303 _dbus_verbose ("%s end\n", _DBUS_FUNCTION_NAME);
03304 }
03305
03316 static dbus_bool_t
03317 _dbus_connection_read_write_dispatch (DBusConnection *connection,
03318 int timeout_milliseconds,
03319 dbus_bool_t dispatch)
03320 {
03321 DBusDispatchStatus dstatus;
03322 dbus_bool_t no_progress_possible;
03323
03324 dstatus = dbus_connection_get_dispatch_status (connection);
03325
03326 if (dispatch && dstatus == DBUS_DISPATCH_DATA_REMAINS)
03327 {
03328 _dbus_verbose ("doing dispatch in %s\n", _DBUS_FUNCTION_NAME);
03329 dbus_connection_dispatch (connection);
03330 CONNECTION_LOCK (connection);
03331 }
03332 else if (dstatus == DBUS_DISPATCH_NEED_MEMORY)
03333 {
03334 _dbus_verbose ("pausing for memory in %s\n", _DBUS_FUNCTION_NAME);
03335 _dbus_memory_pause_based_on_timeout (timeout_milliseconds);
03336 CONNECTION_LOCK (connection);
03337 }
03338 else
03339 {
03340 CONNECTION_LOCK (connection);
03341 if (_dbus_connection_get_is_connected_unlocked (connection))
03342 {
03343 _dbus_verbose ("doing iteration in %s\n", _DBUS_FUNCTION_NAME);
03344 _dbus_connection_do_iteration_unlocked (connection,
03345 DBUS_ITERATION_DO_READING |
03346 DBUS_ITERATION_DO_WRITING |
03347 DBUS_ITERATION_BLOCK,
03348 timeout_milliseconds);
03349 }
03350 }
03351
03352 HAVE_LOCK_CHECK (connection);
03353
03354
03355
03356
03357 if (dispatch)
03358 no_progress_possible = connection->n_incoming == 0 &&
03359 connection->disconnect_message_link == NULL;
03360 else
03361 no_progress_possible = _dbus_connection_get_is_connected_unlocked (connection);
03362 CONNECTION_UNLOCK (connection);
03363 return !no_progress_possible;
03364 }
03365
03366
03401 dbus_bool_t
03402 dbus_connection_read_write_dispatch (DBusConnection *connection,
03403 int timeout_milliseconds)
03404 {
03405 _dbus_return_val_if_fail (connection != NULL, FALSE);
03406 _dbus_return_val_if_fail (timeout_milliseconds >= 0 || timeout_milliseconds == -1, FALSE);
03407 return _dbus_connection_read_write_dispatch(connection, timeout_milliseconds, TRUE);
03408 }
03409
03433 dbus_bool_t
03434 dbus_connection_read_write (DBusConnection *connection,
03435 int timeout_milliseconds)
03436 {
03437 _dbus_return_val_if_fail (connection != NULL, FALSE);
03438 _dbus_return_val_if_fail (timeout_milliseconds >= 0 || timeout_milliseconds == -1, FALSE);
03439 return _dbus_connection_read_write_dispatch(connection, timeout_milliseconds, FALSE);
03440 }
03441
03442
03443
03444
03445
03446
03447 static void
03448 check_disconnected_message_arrived_unlocked (DBusConnection *connection,
03449 DBusMessage *head_of_queue)
03450 {
03451 HAVE_LOCK_CHECK (connection);
03452
03453
03454 if (connection->disconnect_message_link == NULL &&
03455 dbus_message_is_signal (head_of_queue,
03456 DBUS_INTERFACE_LOCAL,
03457 "Disconnected"))
03458 {
03459 connection->disconnected_message_arrived = TRUE;
03460 }
03461 }
03462
03482 DBusMessage*
03483 dbus_connection_borrow_message (DBusConnection *connection)
03484 {
03485 DBusDispatchStatus status;
03486 DBusMessage *message;
03487
03488 _dbus_return_val_if_fail (connection != NULL, NULL);
03489
03490 _dbus_verbose ("%s start\n", _DBUS_FUNCTION_NAME);
03491
03492
03493
03494
03495 status = dbus_connection_get_dispatch_status (connection);
03496 if (status != DBUS_DISPATCH_DATA_REMAINS)
03497 return NULL;
03498
03499 CONNECTION_LOCK (connection);
03500
03501 _dbus_connection_acquire_dispatch (connection);
03502
03503
03504 _dbus_assert (connection->message_borrowed == NULL);
03505
03506 connection->message_borrowed = _dbus_list_get_first (&connection->incoming_messages);
03507
03508 message = connection->message_borrowed;
03509
03510 check_disconnected_message_arrived_unlocked (connection, message);
03511
03512
03513 if (message == NULL)
03514 _dbus_connection_release_dispatch (connection);
03515
03516 CONNECTION_UNLOCK (connection);
03517
03518
03519
03520 return message;
03521 }
03522
03531 void
03532 dbus_connection_return_message (DBusConnection *connection,
03533 DBusMessage *message)
03534 {
03535 DBusDispatchStatus status;
03536
03537 _dbus_return_if_fail (connection != NULL);
03538 _dbus_return_if_fail (message != NULL);
03539 _dbus_return_if_fail (message == connection->message_borrowed);
03540 _dbus_return_if_fail (connection->dispatch_acquired);
03541
03542 CONNECTION_LOCK (connection);
03543
03544 _dbus_assert (message == connection->message_borrowed);
03545
03546 connection->message_borrowed = NULL;
03547
03548 _dbus_connection_release_dispatch (connection);
03549
03550 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03551 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03552 }
03553
03563 void
03564 dbus_connection_steal_borrowed_message (DBusConnection *connection,
03565 DBusMessage *message)
03566 {
03567 DBusMessage *pop_message;
03568 DBusDispatchStatus status;
03569
03570 _dbus_return_if_fail (connection != NULL);
03571 _dbus_return_if_fail (message != NULL);
03572 _dbus_return_if_fail (message == connection->message_borrowed);
03573 _dbus_return_if_fail (connection->dispatch_acquired);
03574
03575 CONNECTION_LOCK (connection);
03576
03577 _dbus_assert (message == connection->message_borrowed);
03578
03579 pop_message = _dbus_list_pop_first (&connection->incoming_messages);
03580 _dbus_assert (message == pop_message);
03581
03582 connection->n_incoming -= 1;
03583
03584 _dbus_verbose ("Incoming message %p stolen from queue, %d incoming\n",
03585 message, connection->n_incoming);
03586
03587 connection->message_borrowed = NULL;
03588
03589 _dbus_connection_release_dispatch (connection);
03590
03591 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03592 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03593 }
03594
03595
03596
03597
03598 static DBusList*
03599 _dbus_connection_pop_message_link_unlocked (DBusConnection *connection)
03600 {
03601 HAVE_LOCK_CHECK (connection);
03602
03603 _dbus_assert (connection->message_borrowed == NULL);
03604
03605 if (connection->n_incoming > 0)
03606 {
03607 DBusList *link;
03608
03609 link = _dbus_list_pop_first_link (&connection->incoming_messages);
03610 connection->n_incoming -= 1;
03611
03612 _dbus_verbose ("Message %p (%d %s %s %s '%s') removed from incoming queue %p, %d incoming\n",
03613 link->data,
03614 dbus_message_get_type (link->data),
03615 dbus_message_get_path (link->data) ?
03616 dbus_message_get_path (link->data) :
03617 "no path",
03618 dbus_message_get_interface (link->data) ?
03619 dbus_message_get_interface (link->data) :
03620 "no interface",
03621 dbus_message_get_member (link->data) ?
03622 dbus_message_get_member (link->data) :
03623 "no member",
03624 dbus_message_get_signature (link->data),
03625 connection, connection->n_incoming);
03626
03627 check_disconnected_message_arrived_unlocked (connection, link->data);
03628
03629 return link;
03630 }
03631 else
03632 return NULL;
03633 }
03634
03635
03636
03637
03638 static DBusMessage*
03639 _dbus_connection_pop_message_unlocked (DBusConnection *connection)
03640 {
03641 DBusList *link;
03642
03643 HAVE_LOCK_CHECK (connection);
03644
03645 link = _dbus_connection_pop_message_link_unlocked (connection);
03646
03647 if (link != NULL)
03648 {
03649 DBusMessage *message;
03650
03651 message = link->data;
03652
03653 _dbus_list_free_link (link);
03654
03655 return message;
03656 }
03657 else
03658 return NULL;
03659 }
03660
03661 static void
03662 _dbus_connection_putback_message_link_unlocked (DBusConnection *connection,
03663 DBusList *message_link)
03664 {
03665 HAVE_LOCK_CHECK (connection);
03666
03667 _dbus_assert (message_link != NULL);
03668
03669 _dbus_assert (connection->message_borrowed == NULL);
03670
03671 _dbus_assert (connection->dispatch_acquired);
03672
03673 _dbus_list_prepend_link (&connection->incoming_messages,
03674 message_link);
03675 connection->n_incoming += 1;
03676
03677 _dbus_verbose ("Message %p (%d %s %s '%s') put back into queue %p, %d incoming\n",
03678 message_link->data,
03679 dbus_message_get_type (message_link->data),
03680 dbus_message_get_interface (message_link->data) ?
03681 dbus_message_get_interface (message_link->data) :
03682 "no interface",
03683 dbus_message_get_member (message_link->data) ?
03684 dbus_message_get_member (message_link->data) :
03685 "no member",
03686 dbus_message_get_signature (message_link->data),
03687 connection, connection->n_incoming);
03688 }
03689
03709 DBusMessage*
03710 dbus_connection_pop_message (DBusConnection *connection)
03711 {
03712 DBusMessage *message;
03713 DBusDispatchStatus status;
03714
03715 _dbus_verbose ("%s start\n", _DBUS_FUNCTION_NAME);
03716
03717
03718
03719
03720 status = dbus_connection_get_dispatch_status (connection);
03721 if (status != DBUS_DISPATCH_DATA_REMAINS)
03722 return NULL;
03723
03724 CONNECTION_LOCK (connection);
03725 _dbus_connection_acquire_dispatch (connection);
03726 HAVE_LOCK_CHECK (connection);
03727
03728 message = _dbus_connection_pop_message_unlocked (connection);
03729
03730 _dbus_verbose ("Returning popped message %p\n", message);
03731
03732 _dbus_connection_release_dispatch (connection);
03733
03734 status = _dbus_connection_get_dispatch_status_unlocked (connection);
03735 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
03736
03737 return message;
03738 }
03739
03747 static void
03748 _dbus_connection_acquire_dispatch (DBusConnection *connection)
03749 {
03750 HAVE_LOCK_CHECK (connection);
03751
03752 _dbus_connection_ref_unlocked (connection);
03753 CONNECTION_UNLOCK (connection);
03754
03755 _dbus_verbose ("%s locking dispatch_mutex\n", _DBUS_FUNCTION_NAME);
03756 _dbus_mutex_lock (connection->dispatch_mutex);
03757
03758 while (connection->dispatch_acquired)
03759 {
03760 _dbus_verbose ("%s waiting for dispatch to be acquirable\n", _DBUS_FUNCTION_NAME);
03761 _dbus_condvar_wait (connection->dispatch_cond,
03762 connection->dispatch_mutex);
03763 }
03764
03765 _dbus_assert (!connection->dispatch_acquired);
03766
03767 connection->dispatch_acquired = TRUE;
03768
03769 _dbus_verbose ("%s unlocking dispatch_mutex\n", _DBUS_FUNCTION_NAME);
03770 _dbus_mutex_unlock (connection->dispatch_mutex);
03771
03772 CONNECTION_LOCK (connection);
03773 _dbus_connection_unref_unlocked (connection);
03774 }
03775
03783 static void
03784 _dbus_connection_release_dispatch (DBusConnection *connection)
03785 {
03786 HAVE_LOCK_CHECK (connection);
03787
03788 _dbus_verbose ("%s locking dispatch_mutex\n", _DBUS_FUNCTION_NAME);
03789 _dbus_mutex_lock (connection->dispatch_mutex);
03790
03791 _dbus_assert (connection->dispatch_acquired);
03792
03793 connection->dispatch_acquired = FALSE;
03794 _dbus_condvar_wake_one (connection->dispatch_cond);
03795
03796 _dbus_verbose ("%s unlocking dispatch_mutex\n", _DBUS_FUNCTION_NAME);
03797 _dbus_mutex_unlock (connection->dispatch_mutex);
03798 }
03799
03800 static void
03801 _dbus_connection_failed_pop (DBusConnection *connection,
03802 DBusList *message_link)
03803 {
03804 _dbus_list_prepend_link (&connection->incoming_messages,
03805 message_link);
03806 connection->n_incoming += 1;
03807 }
03808
03809
03810 static void
03811 notify_disconnected_unlocked (DBusConnection *connection)
03812 {
03813 HAVE_LOCK_CHECK (connection);
03814
03815
03816
03817
03818
03819
03820
03821 _dbus_bus_notify_shared_connection_disconnected_unlocked (connection);
03822
03823
03824
03825
03826
03827 if (connection->n_outgoing > 0)
03828 {
03829 DBusList *link;
03830
03831 _dbus_verbose ("Dropping %d outgoing messages since we're disconnected\n",
03832 connection->n_outgoing);
03833
03834 while ((link = _dbus_list_get_last_link (&connection->outgoing_messages)))
03835 {
03836 _dbus_connection_message_sent (connection, link->data);
03837 }
03838 }
03839 }
03840
03841
03842 static DBusDispatchStatus
03843 notify_disconnected_and_dispatch_complete_unlocked (DBusConnection *connection)
03844 {
03845 HAVE_LOCK_CHECK (connection);
03846
03847 if (connection->disconnect_message_link != NULL)
03848 {
03849 _dbus_verbose ("Sending disconnect message from %s\n",
03850 _DBUS_FUNCTION_NAME);
03851
03852
03853
03854
03855 connection_timeout_and_complete_all_pending_calls_unlocked (connection);
03856
03857
03858
03859
03860 _dbus_connection_queue_synthesized_message_link (connection,
03861 connection->disconnect_message_link);
03862 connection->disconnect_message_link = NULL;
03863
03864 return DBUS_DISPATCH_DATA_REMAINS;
03865 }
03866
03867 return DBUS_DISPATCH_COMPLETE;
03868 }
03869
03870 static DBusDispatchStatus
03871 _dbus_connection_get_dispatch_status_unlocked (DBusConnection *connection)
03872 {
03873 HAVE_LOCK_CHECK (connection);
03874
03875 if (connection->n_incoming > 0)
03876 return DBUS_DISPATCH_DATA_REMAINS;
03877 else if (!_dbus_transport_queue_messages (connection->transport))
03878 return DBUS_DISPATCH_NEED_MEMORY;
03879 else
03880 {
03881 DBusDispatchStatus status;
03882 dbus_bool_t is_connected;
03883
03884 status = _dbus_transport_get_dispatch_status (connection->transport);
03885 is_connected = _dbus_transport_get_is_connected (connection->transport);
03886
03887 _dbus_verbose ("dispatch status = %s is_connected = %d\n",
03888 DISPATCH_STATUS_NAME (status), is_connected);
03889
03890 if (!is_connected)
03891 {
03892
03893
03894
03895
03896
03897
03898 notify_disconnected_unlocked (connection);
03899
03900
03901
03902
03903
03904
03905 if (status == DBUS_DISPATCH_COMPLETE)
03906 status = notify_disconnected_and_dispatch_complete_unlocked (connection);
03907 }
03908
03909 if (status != DBUS_DISPATCH_COMPLETE)
03910 return status;
03911 else if (connection->n_incoming > 0)
03912 return DBUS_DISPATCH_DATA_REMAINS;
03913 else
03914 return DBUS_DISPATCH_COMPLETE;
03915 }
03916 }
03917
03918 static void
03919 _dbus_connection_update_dispatch_status_and_unlock (DBusConnection *connection,
03920 DBusDispatchStatus new_status)
03921 {
03922 dbus_bool_t changed;
03923 DBusDispatchStatusFunction function;
03924 void *data;
03925
03926 HAVE_LOCK_CHECK (connection);
03927
03928 _dbus_connection_ref_unlocked (connection);
03929
03930 changed = new_status != connection->last_dispatch_status;
03931
03932 connection->last_dispatch_status = new_status;
03933
03934 function = connection->dispatch_status_function;
03935 data = connection->dispatch_status_data;
03936
03937 if (connection->disconnected_message_arrived &&
03938 !connection->disconnected_message_processed)
03939 {
03940 connection->disconnected_message_processed = TRUE;
03941
03942
03943
03944
03945
03946 connection_forget_shared_unlocked (connection);
03947
03948 if (connection->exit_on_disconnect)
03949 {
03950 CONNECTION_UNLOCK (connection);
03951
03952 _dbus_verbose ("Exiting on Disconnected signal\n");
03953 _dbus_exit (1);
03954 _dbus_assert_not_reached ("Call to exit() returned");
03955 }
03956 }
03957
03958
03959 CONNECTION_UNLOCK (connection);
03960
03961 if (changed && function)
03962 {
03963 _dbus_verbose ("Notifying of change to dispatch status of %p now %d (%s)\n",
03964 connection, new_status,
03965 DISPATCH_STATUS_NAME (new_status));
03966 (* function) (connection, new_status, data);
03967 }
03968
03969 dbus_connection_unref (connection);
03970 }
03971
03997 DBusDispatchStatus
03998 dbus_connection_get_dispatch_status (DBusConnection *connection)
03999 {
04000 DBusDispatchStatus status;
04001
04002 _dbus_return_val_if_fail (connection != NULL, DBUS_DISPATCH_COMPLETE);
04003
04004 _dbus_verbose ("%s start\n", _DBUS_FUNCTION_NAME);
04005
04006 CONNECTION_LOCK (connection);
04007
04008 status = _dbus_connection_get_dispatch_status_unlocked (connection);
04009
04010 CONNECTION_UNLOCK (connection);
04011
04012 return status;
04013 }
04014
04018 static DBusHandlerResult
04019 _dbus_connection_peer_filter_unlocked_no_update (DBusConnection *connection,
04020 DBusMessage *message)
04021 {
04022 if (connection->route_peer_messages && dbus_message_get_destination (message) != NULL)
04023 {
04024
04025 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
04026 }
04027 else if (dbus_message_is_method_call (message,
04028 DBUS_INTERFACE_PEER,
04029 "Ping"))
04030 {
04031 DBusMessage *ret;
04032 dbus_bool_t sent;
04033
04034 ret = dbus_message_new_method_return (message);
04035 if (ret == NULL)
04036 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04037
04038 sent = _dbus_connection_send_unlocked_no_update (connection, ret, NULL);
04039
04040 dbus_message_unref (ret);
04041
04042 if (!sent)
04043 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04044
04045 return DBUS_HANDLER_RESULT_HANDLED;
04046 }
04047 else if (dbus_message_is_method_call (message,
04048 DBUS_INTERFACE_PEER,
04049 "GetMachineId"))
04050 {
04051 DBusMessage *ret;
04052 dbus_bool_t sent;
04053 DBusString uuid;
04054
04055 ret = dbus_message_new_method_return (message);
04056 if (ret == NULL)
04057 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04058
04059 sent = FALSE;
04060 _dbus_string_init (&uuid);
04061 if (_dbus_get_local_machine_uuid_encoded (&uuid))
04062 {
04063 const char *v_STRING = _dbus_string_get_const_data (&uuid);
04064 if (dbus_message_append_args (ret,
04065 DBUS_TYPE_STRING, &v_STRING,
04066 DBUS_TYPE_INVALID))
04067 {
04068 sent = _dbus_connection_send_unlocked_no_update (connection, ret, NULL);
04069 }
04070 }
04071 _dbus_string_free (&uuid);
04072
04073 dbus_message_unref (ret);
04074
04075 if (!sent)
04076 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04077
04078 return DBUS_HANDLER_RESULT_HANDLED;
04079 }
04080 else if (dbus_message_has_interface (message, DBUS_INTERFACE_PEER))
04081 {
04082
04083
04084
04085
04086
04087 DBusMessage *ret;
04088 dbus_bool_t sent;
04089
04090 ret = dbus_message_new_error (message,
04091 DBUS_ERROR_UNKNOWN_METHOD,
04092 "Unknown method invoked on org.freedesktop.DBus.Peer interface");
04093 if (ret == NULL)
04094 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04095
04096 sent = _dbus_connection_send_unlocked_no_update (connection, ret, NULL);
04097
04098 dbus_message_unref (ret);
04099
04100 if (!sent)
04101 return DBUS_HANDLER_RESULT_NEED_MEMORY;
04102
04103 return DBUS_HANDLER_RESULT_HANDLED;
04104 }
04105 else
04106 {
04107 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
04108 }
04109 }
04110
04117 static DBusHandlerResult
04118 _dbus_connection_run_builtin_filters_unlocked_no_update (DBusConnection *connection,
04119 DBusMessage *message)
04120 {
04121
04122
04123
04124 return _dbus_connection_peer_filter_unlocked_no_update (connection, message);
04125 }
04126
04169 DBusDispatchStatus
04170 dbus_connection_dispatch (DBusConnection *connection)
04171 {
04172 DBusMessage *message;
04173 DBusList *link, *filter_list_copy, *message_link;
04174 DBusHandlerResult result;
04175 DBusPendingCall *pending;
04176 dbus_int32_t reply_serial;
04177 DBusDispatchStatus status;
04178
04179 _dbus_return_val_if_fail (connection != NULL, DBUS_DISPATCH_COMPLETE);
04180
04181 _dbus_verbose ("%s\n", _DBUS_FUNCTION_NAME);
04182
04183 CONNECTION_LOCK (connection);
04184 status = _dbus_connection_get_dispatch_status_unlocked (connection);
04185 if (status != DBUS_DISPATCH_DATA_REMAINS)
04186 {
04187
04188 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
04189 return status;
04190 }
04191
04192
04193
04194
04195 _dbus_connection_ref_unlocked (connection);
04196
04197 _dbus_connection_acquire_dispatch (connection);
04198 HAVE_LOCK_CHECK (connection);
04199
04200 message_link = _dbus_connection_pop_message_link_unlocked (connection);
04201 if (message_link == NULL)
04202 {
04203
04204
04205 _dbus_verbose ("another thread dispatched message (during acquire_dispatch above)\n");
04206
04207 _dbus_connection_release_dispatch (connection);
04208
04209 status = _dbus_connection_get_dispatch_status_unlocked (connection);
04210
04211 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
04212
04213 dbus_connection_unref (connection);
04214
04215 return status;
04216 }
04217
04218 message = message_link->data;
04219
04220 _dbus_verbose (" dispatching message %p (%d %s %s '%s')\n",
04221 message,
04222 dbus_message_get_type (message),
04223 dbus_message_get_interface (message) ?
04224 dbus_message_get_interface (message) :
04225 "no interface",
04226 dbus_message_get_member (message) ?
04227 dbus_message_get_member (message) :
04228 "no member",
04229 dbus_message_get_signature (message));
04230
04231 result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
04232
04233
04234
04235
04236
04237
04238
04239
04240 reply_serial = dbus_message_get_reply_serial (message);
04241 pending = _dbus_hash_table_lookup_int (connection->pending_replies,
04242 reply_serial);
04243 if (pending)
04244 {
04245 _dbus_verbose ("Dispatching a pending reply\n");
04246 complete_pending_call_and_unlock (connection, pending, message);
04247 pending = NULL;
04248
04249 CONNECTION_LOCK (connection);
04250 _dbus_verbose ("pending call completed in dispatch\n");
04251 result = DBUS_HANDLER_RESULT_HANDLED;
04252 goto out;
04253 }
04254
04255 result = _dbus_connection_run_builtin_filters_unlocked_no_update (connection, message);
04256 if (result != DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
04257 goto out;
04258
04259 if (!_dbus_list_copy (&connection->filter_list, &filter_list_copy))
04260 {
04261 _dbus_connection_release_dispatch (connection);
04262 HAVE_LOCK_CHECK (connection);
04263
04264 _dbus_connection_failed_pop (connection, message_link);
04265
04266
04267 _dbus_connection_update_dispatch_status_and_unlock (connection,
04268 DBUS_DISPATCH_NEED_MEMORY);
04269
04270 if (pending)
04271 dbus_pending_call_unref (pending);
04272 dbus_connection_unref (connection);
04273
04274 return DBUS_DISPATCH_NEED_MEMORY;
04275 }
04276
04277 _dbus_list_foreach (&filter_list_copy,
04278 (DBusForeachFunction)_dbus_message_filter_ref,
04279 NULL);
04280
04281
04282
04283
04284 CONNECTION_UNLOCK (connection);
04285
04286 link = _dbus_list_get_first_link (&filter_list_copy);
04287 while (link != NULL)
04288 {
04289 DBusMessageFilter *filter = link->data;
04290 DBusList *next = _dbus_list_get_next_link (&filter_list_copy, link);
04291
04292 if (filter->function == NULL)
04293 {
04294 _dbus_verbose (" filter was removed in a callback function\n");
04295 link = next;
04296 continue;
04297 }
04298
04299 _dbus_verbose (" running filter on message %p\n", message);
04300 result = (* filter->function) (connection, message, filter->user_data);
04301
04302 if (result != DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
04303 break;
04304
04305 link = next;
04306 }
04307
04308 _dbus_list_foreach (&filter_list_copy,
04309 (DBusForeachFunction)_dbus_message_filter_unref,
04310 NULL);
04311 _dbus_list_clear (&filter_list_copy);
04312
04313 CONNECTION_LOCK (connection);
04314
04315 if (result == DBUS_HANDLER_RESULT_NEED_MEMORY)
04316 {
04317 _dbus_verbose ("No memory in %s\n", _DBUS_FUNCTION_NAME);
04318 goto out;
04319 }
04320 else if (result == DBUS_HANDLER_RESULT_HANDLED)
04321 {
04322 _dbus_verbose ("filter handled message in dispatch\n");
04323 goto out;
04324 }
04325
04326
04327
04328
04329 _dbus_verbose (" running object path dispatch on message %p (%d %s %s '%s')\n",
04330 message,
04331 dbus_message_get_type (message),
04332 dbus_message_get_interface (message) ?
04333 dbus_message_get_interface (message) :
04334 "no interface",
04335 dbus_message_get_member (message) ?
04336 dbus_message_get_member (message) :
04337 "no member",
04338 dbus_message_get_signature (message));
04339
04340 HAVE_LOCK_CHECK (connection);
04341 result = _dbus_object_tree_dispatch_and_unlock (connection->objects,
04342 message);
04343
04344 CONNECTION_LOCK (connection);
04345
04346 if (result != DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
04347 {
04348 _dbus_verbose ("object tree handled message in dispatch\n");
04349 goto out;
04350 }
04351
04352 if (dbus_message_get_type (message) == DBUS_MESSAGE_TYPE_METHOD_CALL)
04353 {
04354 DBusMessage *reply;
04355 DBusString str;
04356 DBusPreallocatedSend *preallocated;
04357
04358 _dbus_verbose (" sending error %s\n",
04359 DBUS_ERROR_UNKNOWN_METHOD);
04360
04361 if (!_dbus_string_init (&str))
04362 {
04363 result = DBUS_HANDLER_RESULT_NEED_MEMORY;
04364 _dbus_verbose ("no memory for error string in dispatch\n");
04365 goto out;
04366 }
04367
04368 if (!_dbus_string_append_printf (&str,
04369 "Method \"%s\" with signature \"%s\" on interface \"%s\" doesn't exist\n",
04370 dbus_message_get_member (message),
04371 dbus_message_get_signature (message),
04372 dbus_message_get_interface (message)))
04373 {
04374 _dbus_string_free (&str);
04375 result = DBUS_HANDLER_RESULT_NEED_MEMORY;
04376 _dbus_verbose ("no memory for error string in dispatch\n");
04377 goto out;
04378 }
04379
04380 reply = dbus_message_new_error (message,
04381 DBUS_ERROR_UNKNOWN_METHOD,
04382 _dbus_string_get_const_data (&str));
04383 _dbus_string_free (&str);
04384
04385 if (reply == NULL)
04386 {
04387 result = DBUS_HANDLER_RESULT_NEED_MEMORY;
04388 _dbus_verbose ("no memory for error reply in dispatch\n");
04389 goto out;
04390 }
04391
04392 preallocated = _dbus_connection_preallocate_send_unlocked (connection);
04393
04394 if (preallocated == NULL)
04395 {
04396 dbus_message_unref (reply);
04397 result = DBUS_HANDLER_RESULT_NEED_MEMORY;
04398 _dbus_verbose ("no memory for error send in dispatch\n");
04399 goto out;
04400 }
04401
04402 _dbus_connection_send_preallocated_unlocked_no_update (connection, preallocated,
04403 reply, NULL);
04404
04405 dbus_message_unref (reply);
04406
04407 result = DBUS_HANDLER_RESULT_HANDLED;
04408 }
04409
04410 _dbus_verbose (" done dispatching %p (%d %s %s '%s') on connection %p\n", message,
04411 dbus_message_get_type (message),
04412 dbus_message_get_interface (message) ?
04413 dbus_message_get_interface (message) :
04414 "no interface",
04415 dbus_message_get_member (message) ?
04416 dbus_message_get_member (message) :
04417 "no member",
04418 dbus_message_get_signature (message),
04419 connection);
04420
04421 out:
04422 if (result == DBUS_HANDLER_RESULT_NEED_MEMORY)
04423 {
04424 _dbus_verbose ("out of memory in %s\n", _DBUS_FUNCTION_NAME);
04425
04426
04427
04428
04429
04430 _dbus_connection_putback_message_link_unlocked (connection,
04431 message_link);
04432 }
04433 else
04434 {
04435 _dbus_verbose (" ... done dispatching in %s\n", _DBUS_FUNCTION_NAME);
04436
04437 _dbus_list_free_link (message_link);
04438 dbus_message_unref (message);
04439
04440
04441 }
04442
04443 _dbus_connection_release_dispatch (connection);
04444 HAVE_LOCK_CHECK (connection);
04445
04446 _dbus_verbose ("%s before final status update\n", _DBUS_FUNCTION_NAME);
04447 status = _dbus_connection_get_dispatch_status_unlocked (connection);
04448
04449
04450 _dbus_connection_update_dispatch_status_and_unlock (connection, status);
04451
04452 dbus_connection_unref (connection);
04453
04454 return status;
04455 }
04456
04515 dbus_bool_t
04516 dbus_connection_set_watch_functions (DBusConnection *connection,
04517 DBusAddWatchFunction add_function,
04518 DBusRemoveWatchFunction remove_function,
04519 DBusWatchToggledFunction toggled_function,
04520 void *data,
04521 DBusFreeFunction free_data_function)
04522 {
04523 dbus_bool_t retval;
04524 DBusWatchList *watches;
04525
04526 _dbus_return_val_if_fail (connection != NULL, FALSE);
04527
04528 CONNECTION_LOCK (connection);
04529
04530 #ifndef DBUS_DISABLE_CHECKS
04531 if (connection->watches == NULL)
04532 {
04533 _dbus_warn_check_failed ("Re-entrant call to %s is not allowed\n",
04534 _DBUS_FUNCTION_NAME);
04535 return FALSE;
04536 }
04537 #endif
04538
04539
04540 _dbus_connection_ref_unlocked (connection);
04541
04542
04543
04544
04545
04546 watches = connection->watches;
04547 connection->watches = NULL;
04548 CONNECTION_UNLOCK (connection);
04549
04550 retval = _dbus_watch_list_set_functions (watches,
04551 add_function, remove_function,
04552 toggled_function,
04553 data, free_data_function);
04554 CONNECTION_LOCK (connection);
04555 connection->watches = watches;
04556
04557 CONNECTION_UNLOCK (connection);
04558
04559 dbus_connection_unref (connection);
04560
04561 return retval;
04562 }
04563
04597 dbus_bool_t
04598 dbus_connection_set_timeout_functions (DBusConnection *connection,
04599 DBusAddTimeoutFunction add_function,
04600 DBusRemoveTimeoutFunction remove_function,
04601 DBusTimeoutToggledFunction toggled_function,
04602 void *data,
04603 DBusFreeFunction free_data_function)
04604 {
04605 dbus_bool_t retval;
04606 DBusTimeoutList *timeouts;
04607
04608 _dbus_return_val_if_fail (connection != NULL, FALSE);
04609
04610 CONNECTION_LOCK (connection);
04611
04612 #ifndef DBUS_DISABLE_CHECKS
04613 if (connection->timeouts == NULL)
04614 {
04615 _dbus_warn_check_failed ("Re-entrant call to %s is not allowed\n",
04616 _DBUS_FUNCTION_NAME);
04617 return FALSE;
04618 }
04619 #endif
04620
04621
04622 _dbus_connection_ref_unlocked (connection);
04623
04624 timeouts = connection->timeouts;
04625 connection->timeouts = NULL;
04626 CONNECTION_UNLOCK (connection);
04627
04628 retval = _dbus_timeout_list_set_functions (timeouts,
04629 add_function, remove_function,
04630 toggled_function,
04631 data, free_data_function);
04632 CONNECTION_LOCK (connection);
04633 connection->timeouts = timeouts;
04634
04635 CONNECTION_UNLOCK (connection);
04636
04637 dbus_connection_unref (connection);
04638
04639 return retval;
04640 }
04641
04656 void
04657 dbus_connection_set_wakeup_main_function (DBusConnection *connection,
04658 DBusWakeupMainFunction wakeup_main_function,
04659 void *data,
04660 DBusFreeFunction free_data_function)
04661 {
04662 void *old_data;
04663 DBusFreeFunction old_free_data;
04664
04665 _dbus_return_if_fail (connection != NULL);
04666
04667 CONNECTION_LOCK (connection);
04668 old_data = connection->wakeup_main_data;
04669 old_free_data = connection->free_wakeup_main_data;
04670
04671 connection->wakeup_main_function = wakeup_main_function;
04672 connection->wakeup_main_data = data;
04673 connection->free_wakeup_main_data = free_data_function;
04674
04675 CONNECTION_UNLOCK (connection);
04676
04677
04678 if (old_free_data)
04679 (*old_free_data) (old_data);
04680 }
04681
04702 void
04703 dbus_connection_set_dispatch_status_function (DBusConnection *connection,
04704 DBusDispatchStatusFunction function,
04705 void *data,
04706 DBusFreeFunction free_data_function)
04707 {
04708 void *old_data;
04709 DBusFreeFunction old_free_data;
04710
04711 _dbus_return_if_fail (connection != NULL);
04712
04713 CONNECTION_LOCK (connection);
04714 old_data = connection->dispatch_status_data;
04715 old_free_data = connection->free_dispatch_status_data;
04716
04717 connection->dispatch_status_function = function;
04718 connection->dispatch_status_data = data;
04719 connection->free_dispatch_status_data = free_data_function;
04720
04721 CONNECTION_UNLOCK (connection);
04722
04723
04724 if (old_free_data)
04725 (*old_free_data) (old_data);
04726 }
04727
04747 dbus_bool_t
04748 dbus_connection_get_unix_fd (DBusConnection *connection,
04749 int *fd)
04750 {
04751 _dbus_return_val_if_fail (connection != NULL, FALSE);
04752 _dbus_return_val_if_fail (connection->transport != NULL, FALSE);
04753
04754 #ifdef DBUS_WIN
04755
04756 return FALSE;
04757 #endif
04758
04759 return dbus_connection_get_socket(connection, fd);
04760 }
04761
04777 dbus_bool_t
04778 dbus_connection_get_socket(DBusConnection *connection,
04779 int *fd)
04780 {
04781 dbus_bool_t retval;
04782
04783 _dbus_return_val_if_fail (connection != NULL, FALSE);
04784 _dbus_return_val_if_fail (connection->transport != NULL, FALSE);
04785
04786 CONNECTION_LOCK (connection);
04787
04788 retval = _dbus_transport_get_socket_fd (connection->transport,
04789 fd);
04790
04791 CONNECTION_UNLOCK (connection);
04792
04793 return retval;
04794 }
04795
04796
04817 dbus_bool_t
04818 dbus_connection_get_unix_user (DBusConnection *connection,
04819 unsigned long *uid)
04820 {
04821 dbus_bool_t result;
04822
04823 _dbus_return_val_if_fail (connection != NULL, FALSE);
04824 _dbus_return_val_if_fail (uid != NULL, FALSE);
04825
04826 #ifdef DBUS_WIN
04827
04828
04829
04830
04831 return FALSE;
04832 #endif
04833
04834 CONNECTION_LOCK (connection);
04835
04836 if (!_dbus_transport_get_is_authenticated (connection->transport))
04837 result = FALSE;
04838 else
04839 result = _dbus_transport_get_unix_user (connection->transport,
04840 uid);
04841 CONNECTION_UNLOCK (connection);
04842
04843 return result;
04844 }
04845
04856 dbus_bool_t
04857 dbus_connection_get_unix_process_id (DBusConnection *connection,
04858 unsigned long *pid)
04859 {
04860 dbus_bool_t result;
04861
04862 _dbus_return_val_if_fail (connection != NULL, FALSE);
04863 _dbus_return_val_if_fail (pid != NULL, FALSE);
04864
04865 #ifdef DBUS_WIN
04866
04867
04868
04869
04870 return FALSE;
04871 #endif
04872
04873 CONNECTION_LOCK (connection);
04874
04875 if (!_dbus_transport_get_is_authenticated (connection->transport))
04876 result = FALSE;
04877 else
04878 result = _dbus_transport_get_unix_process_id (connection->transport,
04879 pid);
04880 CONNECTION_UNLOCK (connection);
04881
04882 return result;
04883 }
04884
04908 void
04909 dbus_connection_set_unix_user_function (DBusConnection *connection,
04910 DBusAllowUnixUserFunction function,
04911 void *data,
04912 DBusFreeFunction free_data_function)
04913 {
04914 void *old_data = NULL;
04915 DBusFreeFunction old_free_function = NULL;
04916
04917 _dbus_return_if_fail (connection != NULL);
04918
04919 CONNECTION_LOCK (connection);
04920 _dbus_transport_set_unix_user_function (connection->transport,
04921 function, data, free_data_function,
04922 &old_data, &old_free_function);
04923 CONNECTION_UNLOCK (connection);
04924
04925 if (old_free_function != NULL)
04926 (* old_free_function) (old_data);
04927 }
04928
04947 void
04948 dbus_connection_set_route_peer_messages (DBusConnection *connection,
04949 dbus_bool_t value)
04950 {
04951 _dbus_return_if_fail (connection != NULL);
04952
04953 CONNECTION_LOCK (connection);
04954 connection->route_peer_messages = TRUE;
04955 CONNECTION_UNLOCK (connection);
04956 }
04957
04979 dbus_bool_t
04980 dbus_connection_add_filter (DBusConnection *connection,
04981 DBusHandleMessageFunction function,
04982 void *user_data,
04983 DBusFreeFunction free_data_function)
04984 {
04985 DBusMessageFilter *filter;
04986
04987 _dbus_return_val_if_fail (connection != NULL, FALSE);
04988 _dbus_return_val_if_fail (function != NULL, FALSE);
04989
04990 filter = dbus_new0 (DBusMessageFilter, 1);
04991 if (filter == NULL)
04992 return FALSE;
04993
04994 filter->refcount.value = 1;
04995
04996 CONNECTION_LOCK (connection);
04997
04998 if (!_dbus_list_append (&connection->filter_list,
04999 filter))
05000 {
05001 _dbus_message_filter_unref (filter);
05002 CONNECTION_UNLOCK (connection);
05003 return FALSE;
05004 }
05005
05006
05007
05008
05009
05010
05011 filter->function = function;
05012 filter->user_data = user_data;
05013 filter->free_user_data_function = free_data_function;
05014
05015 CONNECTION_UNLOCK (connection);
05016 return TRUE;
05017 }
05018
05031 void
05032 dbus_connection_remove_filter (DBusConnection *connection,
05033 DBusHandleMessageFunction function,
05034 void *user_data)
05035 {
05036 DBusList *link;
05037 DBusMessageFilter *filter;
05038
05039 _dbus_return_if_fail (connection != NULL);
05040 _dbus_return_if_fail (function != NULL);
05041
05042 CONNECTION_LOCK (connection);
05043
05044 filter = NULL;
05045
05046 link = _dbus_list_get_last_link (&connection->filter_list);
05047 while (link != NULL)
05048 {
05049 filter = link->data;
05050
05051 if (filter->function == function &&
05052 filter->user_data == user_data)
05053 {
05054 _dbus_list_remove_link (&connection->filter_list, link);
05055 filter->function = NULL;
05056
05057 break;
05058 }
05059
05060 link = _dbus_list_get_prev_link (&connection->filter_list, link);
05061 filter = NULL;
05062 }
05063
05064 CONNECTION_UNLOCK (connection);
05065
05066 if (filter == NULL)
05067 {
05068 _dbus_warn ("Attempt to remove filter function %p user data %p, but no such filter has been added\n",
05069 function, user_data);
05070 return;
05071 }
05072
05073
05074 if (filter->free_user_data_function)
05075 (* filter->free_user_data_function) (filter->user_data);
05076
05077 filter->free_user_data_function = NULL;
05078 filter->user_data = NULL;
05079
05080 _dbus_message_filter_unref (filter);
05081 }
05082
05094 dbus_bool_t
05095 dbus_connection_register_object_path (DBusConnection *connection,
05096 const char *path,
05097 const DBusObjectPathVTable *vtable,
05098 void *user_data)
05099 {
05100 char **decomposed_path;
05101 dbus_bool_t retval;
05102
05103 _dbus_return_val_if_fail (connection != NULL, FALSE);
05104 _dbus_return_val_if_fail (path != NULL, FALSE);
05105 _dbus_return_val_if_fail (path[0] == '/', FALSE);
05106 _dbus_return_val_if_fail (vtable != NULL, FALSE);
05107
05108 if (!_dbus_decompose_path (path, strlen (path), &decomposed_path, NULL))
05109 return FALSE;
05110
05111 CONNECTION_LOCK (connection);
05112
05113 retval = _dbus_object_tree_register (connection->objects,
05114 FALSE,
05115 (const char **) decomposed_path, vtable,
05116 user_data);
05117
05118 CONNECTION_UNLOCK (connection);
05119
05120 dbus_free_string_array (decomposed_path);
05121
05122 return retval;
05123 }
05124
05137 dbus_bool_t
05138 dbus_connection_register_fallback (DBusConnection *connection,
05139 const char *path,
05140 const DBusObjectPathVTable *vtable,
05141 void *user_data)
05142 {
05143 char **decomposed_path;
05144 dbus_bool_t retval;
05145
05146 _dbus_return_val_if_fail (connection != NULL, FALSE);
05147 _dbus_return_val_if_fail (path != NULL, FALSE);
05148 _dbus_return_val_if_fail (path[0] == '/', FALSE);
05149 _dbus_return_val_if_fail (vtable != NULL, FALSE);
05150
05151 if (!_dbus_decompose_path (path, strlen (path), &decomposed_path, NULL))
05152 return FALSE;
05153
05154 CONNECTION_LOCK (connection);
05155
05156 retval = _dbus_object_tree_register (connection->objects,
05157 TRUE,
05158 (const char **) decomposed_path, vtable,
05159 user_data);
05160
05161 CONNECTION_UNLOCK (connection);
05162
05163 dbus_free_string_array (decomposed_path);
05164
05165 return retval;
05166 }
05167
05177 dbus_bool_t
05178 dbus_connection_unregister_object_path (DBusConnection *connection,
05179 const char *path)
05180 {
05181 char **decomposed_path;
05182
05183 _dbus_return_val_if_fail (connection != NULL, FALSE);
05184 _dbus_return_val_if_fail (path != NULL, FALSE);
05185 _dbus_return_val_if_fail (path[0] == '/', FALSE);
05186
05187 if (!_dbus_decompose_path (path, strlen (path), &decomposed_path, NULL))
05188 return FALSE;
05189
05190 CONNECTION_LOCK (connection);
05191
05192 _dbus_object_tree_unregister_and_unlock (connection->objects, (const char **) decomposed_path);
05193
05194 dbus_free_string_array (decomposed_path);
05195
05196 return TRUE;
05197 }
05198
05209 dbus_bool_t
05210 dbus_connection_get_object_path_data (DBusConnection *connection,
05211 const char *path,
05212 void **data_p)
05213 {
05214 char **decomposed_path;
05215
05216 _dbus_return_val_if_fail (connection != NULL, FALSE);
05217 _dbus_return_val_if_fail (path != NULL, FALSE);
05218 _dbus_return_val_if_fail (data_p != NULL, FALSE);
05219
05220 *data_p = NULL;
05221
05222 if (!_dbus_decompose_path (path, strlen (path), &decomposed_path, NULL))
05223 return FALSE;
05224
05225 CONNECTION_LOCK (connection);
05226
05227 *data_p = _dbus_object_tree_get_user_data_unlocked (connection->objects, (const char**) decomposed_path);
05228
05229 CONNECTION_UNLOCK (connection);
05230
05231 dbus_free_string_array (decomposed_path);
05232
05233 return TRUE;
05234 }
05235
05246 dbus_bool_t
05247 dbus_connection_list_registered (DBusConnection *connection,
05248 const char *parent_path,
05249 char ***child_entries)
05250 {
05251 char **decomposed_path;
05252 dbus_bool_t retval;
05253 _dbus_return_val_if_fail (connection != NULL, FALSE);
05254 _dbus_return_val_if_fail (parent_path != NULL, FALSE);
05255 _dbus_return_val_if_fail (parent_path[0] == '/', FALSE);
05256 _dbus_return_val_if_fail (child_entries != NULL, FALSE);
05257
05258 if (!_dbus_decompose_path (parent_path, strlen (parent_path), &decomposed_path, NULL))
05259 return FALSE;
05260
05261 CONNECTION_LOCK (connection);
05262
05263 retval = _dbus_object_tree_list_registered_and_unlock (connection->objects,
05264 (const char **) decomposed_path,
05265 child_entries);
05266 dbus_free_string_array (decomposed_path);
05267
05268 return retval;
05269 }
05270
05271 static DBusDataSlotAllocator slot_allocator;
05272 _DBUS_DEFINE_GLOBAL_LOCK (connection_slots);
05273
05288 dbus_bool_t
05289 dbus_connection_allocate_data_slot (dbus_int32_t *slot_p)
05290 {
05291 return _dbus_data_slot_allocator_alloc (&slot_allocator,
05292 &_DBUS_LOCK_NAME (connection_slots),
05293 slot_p);
05294 }
05295
05307 void
05308 dbus_connection_free_data_slot (dbus_int32_t *slot_p)
05309 {
05310 _dbus_return_if_fail (*slot_p >= 0);
05311
05312 _dbus_data_slot_allocator_free (&slot_allocator, slot_p);
05313 }
05314
05328 dbus_bool_t
05329 dbus_connection_set_data (DBusConnection *connection,
05330 dbus_int32_t slot,
05331 void *data,
05332 DBusFreeFunction free_data_func)
05333 {
05334 DBusFreeFunction old_free_func;
05335 void *old_data;
05336 dbus_bool_t retval;
05337
05338 _dbus_return_val_if_fail (connection != NULL, FALSE);
05339 _dbus_return_val_if_fail (slot >= 0, FALSE);
05340
05341 CONNECTION_LOCK (connection);
05342
05343 retval = _dbus_data_slot_list_set (&slot_allocator,
05344 &connection->slot_list,
05345 slot, data, free_data_func,
05346 &old_free_func, &old_data);
05347
05348 CONNECTION_UNLOCK (connection);
05349
05350 if (retval)
05351 {
05352
05353 if (old_free_func)
05354 (* old_free_func) (old_data);
05355 }
05356
05357 return retval;
05358 }
05359
05368 void*
05369 dbus_connection_get_data (DBusConnection *connection,
05370 dbus_int32_t slot)
05371 {
05372 void *res;
05373
05374 _dbus_return_val_if_fail (connection != NULL, NULL);
05375
05376 CONNECTION_LOCK (connection);
05377
05378 res = _dbus_data_slot_list_get (&slot_allocator,
05379 &connection->slot_list,
05380 slot);
05381
05382 CONNECTION_UNLOCK (connection);
05383
05384 return res;
05385 }
05386
05393 void
05394 dbus_connection_set_change_sigpipe (dbus_bool_t will_modify_sigpipe)
05395 {
05396 _dbus_modify_sigpipe = will_modify_sigpipe != FALSE;
05397 }
05398
05407 void
05408 dbus_connection_set_max_message_size (DBusConnection *connection,
05409 long size)
05410 {
05411 _dbus_return_if_fail (connection != NULL);
05412
05413 CONNECTION_LOCK (connection);
05414 _dbus_transport_set_max_message_size (connection->transport,
05415 size);
05416 CONNECTION_UNLOCK (connection);
05417 }
05418
05425 long
05426 dbus_connection_get_max_message_size (DBusConnection *connection)
05427 {
05428 long res;
05429
05430 _dbus_return_val_if_fail (connection != NULL, 0);
05431
05432 CONNECTION_LOCK (connection);
05433 res = _dbus_transport_get_max_message_size (connection->transport);
05434 CONNECTION_UNLOCK (connection);
05435 return res;
05436 }
05437
05463 void
05464 dbus_connection_set_max_received_size (DBusConnection *connection,
05465 long size)
05466 {
05467 _dbus_return_if_fail (connection != NULL);
05468
05469 CONNECTION_LOCK (connection);
05470 _dbus_transport_set_max_received_size (connection->transport,
05471 size);
05472 CONNECTION_UNLOCK (connection);
05473 }
05474
05481 long
05482 dbus_connection_get_max_received_size (DBusConnection *connection)
05483 {
05484 long res;
05485
05486 _dbus_return_val_if_fail (connection != NULL, 0);
05487
05488 CONNECTION_LOCK (connection);
05489 res = _dbus_transport_get_max_received_size (connection->transport);
05490 CONNECTION_UNLOCK (connection);
05491 return res;
05492 }
05493
05504 long
05505 dbus_connection_get_outgoing_size (DBusConnection *connection)
05506 {
05507 long res;
05508
05509 _dbus_return_val_if_fail (connection != NULL, 0);
05510
05511 CONNECTION_LOCK (connection);
05512 res = _dbus_counter_get_value (connection->outgoing_counter);
05513 CONNECTION_UNLOCK (connection);
05514 return res;
05515 }
05516