作为服务运行时,QtService应用程序无法连接到系统总线

我已经重新编译了用于Windows的集成dbus Qt

此外,我已经实现了一个QtService应用程序,它在系统总线上注册一个服务和一个对象,如下所示:

 QDBusConnection::systemBus().registerService("com.mycompany.Configuration"); QDBusConnection::systemBus().registerObject("/com/mycompany/Configuration/MySetting", myObject); 

现在,当我使用-e参数(作为常规应用程序运行)运行服务应用程序时,它工作正常,并且dbus-monitorqdbus --system显示注册的服务和对象。

但是,当我将应用程序作为Windows服务运行时,它不会在系统总线上注册任何内容。

debugging服务给我错误消息

没有连接到D-Bus服务器

当调用registerService(...)registerObject(...)

我已经设置了环境variables:

 DBUS_SYSTEM_BUS_ADDRESS = autolaunch: DBUS_SYSTEM_BUS_DEFAULT_ADDRESS = autolaunch: 

我的system.conf文件:

 <!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> <busconfig> <type>system</type> <fork/> <pidfile>/pid</pidfile> <listen>autolaunch:</listen> <policy context="default"> <allow user="*"/> <deny own="*"/> <deny send_type="method_call"/> <allow send_type="signal"/> <allow send_requested_reply="true" send_type="method_return"/> <allow send_requested_reply="true" send_type="error"/> <allow receive_type="method_call"/> <allow receive_type="method_return"/> <allow receive_type="error"/> <allow receive_type="signal"/> <allow send_destination="org.freedesktop.DBus"/> <deny send_destination="org.freedesktop.DBus" send_interface="org.freedesktop.DBus" send_member="UpdateActivationEnvironment"/> </policy> <includedir>system.d</includedir> <include ignore_missing="yes">system-local.conf</include> <include if_selinux_enabled="yes" selinux_root_relative="yes">contexts/dbus_contexts</include> </busconfig> 

另外,我在system.d文件夹中有一个com.mycompany.Configuration.conf文件:

 <!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> <busconfig> <!-- Only root can own the service --> <policy context="default"> <allow own="com.mycompany.Configuration"/> <allow send_interface="com.mycompany.Configuration"/> <allow send_destination="com.mycompany.Configuration"/> <allow receive_sender="com.mycompany.Configuration"/> </policy> </busconfig> 

Windows服务本身称为com.mycompany.Configuration,并作为本地系统帐户执行。

此外,dbus详细输出显示,当我的Windows服务启动时发生了一些事情:

 [...] 1292: [dbus\dbus-connection.c(1154):_dbus_connection_release_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1160):_dbus_connection_release_io_path] start connection->io_path_acquired = 1 1292: [dbus\dbus-connection.c(1165):_dbus_connection_release_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1522):_dbus_connection_handle_watch] middle 1292: [dbus\dbus-connection.c(4222):_dbus_connection_get_dispatch_status_unlocked] dispatch status = complete is_connected = 1 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1529):_dbus_connection_handle_watch] end 1292: [dbus\dbus-watch.c(696):dbus_watch_handle] After sanitization, watch flags on fd 1932 were 0 1292: [dbus\dbus-sysdeps-win.c(1110):_dbus_poll] select: to=7875 R:1944 E:1944 R:1936 E:1936 R:1932 E:1932 [dbus\dbus-sysdeps-win.c(1162):_dbus_poll] select: = 1: R:1932 [dbus\dbus-connection.c(1503):_dbus_connection_handle_watch] start 1292: [dbus\dbus-connection.c(1505):_dbus_connection_handle_watch] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1081):_dbus_connection_acquire_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1085):_dbus_connection_acquire_io_path] start connection->io_path_acquired = 0 timeout = 1 1292: [dbus\dbus-connection.c(1128):_dbus_connection_acquire_io_path] end connection->io_path_acquired = 1 we_acquired = 1 1292: [dbus\dbus-connection.c(1130):_dbus_connection_acquire_io_path] unlocking io_path_mutex 1292: [dbus\dbus-connection.c(1133):_dbus_connection_acquire_io_path] LOCK 1292: [dbus\dbus-transport-socket.c(919):socket_handle_watch] handling read watch 003d6f58 flags = 1 1292: [dbus\dbus-transport-socket.c(345):exchange_credentials] exchange_credentials: do_reading = 1, do_writing = 0 1292: [dbus\dbus-transport-socket.c(446):do_authentication] server auth state:waiting for input 1292: [dbus\dbus-sysdeps-win.c(207):_dbus_read_socket] recv: count=2048 fd=1932 1292: [dbus\dbus-sysdeps-win.c(217):_dbus_read_socket] recv: = 153 1292: [dbus\dbus-transport-socket.c(263):read_data_into_auth] read 153 bytes in auth phase 1292: [dbus\dbus-auth.c(2187):process_command] server: got command "DATA 30333432316532346364316236363730303938303934303836666364653631372063303064313764623036653935643732336665666330396131633131653265353030643632616237" 1292: [dbus\dbus-auth.c(1624):process_data] server: data: '03421e24cd1b6670098094086fcde617 c00d17db06e95d723fefc09a1c11e2e500d62ab7' 1292: [dbus\dbus-auth.c(2134):goto_state] server: going from state WaitingForData to state WaitingForBegin 1292: [dbus\dbus-auth.c(760):sha1_handle_second_client_response] server: authenticated client using DBUS_COOKIE_SHA1 1292: [dbus\dbus-transport-socket.c(345):exchange_credentials] exchange_credentials: do_reading = 1, do_writing = 0 1292: [dbus\dbus-transport-socket.c(460):do_authentication] server auth state:bytes to send 1292: [dbus\dbus-transport-socket.c(180):check_read_watch] fd = 1932 1292: [dbus\dbus-transport-socket.c(226):check_read_watch] setting read watch enabled = 0 1292: [dbus\dbus-watch.c(449):_dbus_watch_list_toggle_watch] Toggling watch 003d6f58 on fd 1932 to 0 1292: [dbus\dbus-transport-socket.c(165):check_write_watch] check_write_watch(): needed = 1 on connection 003d88b0 watch 003d7260 fd = 1932 outgoing messages exist 0 1292: [dbus\dbus-watch.c(449):_dbus_watch_list_toggle_watch] Toggling watch 003d7260 on fd 1932 to 1 1292: [dbus\dbus-transport-socket.c(703):do_reading] fd = 1932 1292: [dbus\dbus-connection.c(1154):_dbus_connection_release_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1160):_dbus_connection_release_io_path] start connection->io_path_acquired = 1 1292: [dbus\dbus-connection.c(1165):_dbus_connection_release_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1522):_dbus_connection_handle_watch] middle 1292: [dbus\dbus-connection.c(4222):_dbus_connection_get_dispatch_status_unlocked] dispatch status = complete is_connected = 1 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1529):_dbus_connection_handle_watch] end 1292: [dbus\dbus-sysdeps-win.c(1110):_dbus_poll] select: to=5641 R:1944 E:1944 R:1936 E:1936 W:1932 E:1932 [dbus\dbus-sysdeps-win.c(1162):_dbus_poll] select: = 1: W:1932 [dbus\dbus-connection.c(1503):_dbus_connection_handle_watch] start 1292: [dbus\dbus-connection.c(1505):_dbus_connection_handle_watch] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1081):_dbus_connection_acquire_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1085):_dbus_connection_acquire_io_path] start connection->io_path_acquired = 0 timeout = 1 1292: [dbus\dbus-connection.c(1128):_dbus_connection_acquire_io_path] end connection->io_path_acquired = 1 we_acquired = 1 1292: [dbus\dbus-connection.c(1130):_dbus_connection_acquire_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1133):_dbus_connection_acquire_io_path] LOCK 1292: [dbus\dbus-transport-socket.c(948):socket_handle_watch] handling write watch, have_outgoing_messages = 0 1292: [dbus\dbus-transport-socket.c(345):exchange_credentials] exchange_credentials: do_reading = 0, do_writing = 1 1292: [dbus\dbus-transport-socket.c(460):do_authentication] server auth state:bytes to send 1292: [dbus\dbus-sysdeps-win.c(267):_dbus_write_socket] send: len=37 fd=1932 1292: [dbus\dbus-sysdeps-win.c(277):_dbus_write_socket] send: = 37 1292: [dbus\dbus-auth.c(2506):_dbus_auth_bytes_sent] server: Sent 37 bytes of: OK 4d63998db68399d8b48494595200cd61 1292: [dbus\dbus-transport-socket.c(345):exchange_credentials] exchange_credentials: do_reading = 0, do_writing = 1 1292: [dbus\dbus-transport-socket.c(446):do_authentication] server auth state:waiting for input 1292: [dbus\dbus-transport-socket.c(180):check_read_watch] fd = 1932 1292: [dbus\dbus-transport-socket.c(226):check_read_watch] setting read watchenabled = 1 1292: [dbus\dbus-watch.c(449):_dbus_watch_list_toggle_watch] Toggling watch 003d6f58 on fd 1932 to 1 1292: [dbus\dbus-transport-socket.c(165):check_write_watch] check_write_watch(): needed = 0 on connection 003d88b0 watch 003d7260 fd = 1932 outgoing messages exist 0 1292: [dbus\dbus-watch.c(449):_dbus_watch_list_toggle_watch] Toggling watch 003d7260 on fd 1932 to 0 1292: [dbus\dbus-transport-socket.c(503):do_writing] Not authenticated, not writing anything 1292: [dbus\dbus-transport-socket.c(165):check_write_watch] check_write_watch(): needed = 0 on connection 003d88b0 watch 003d7260 fd = 1932 outgoing messages exist 0 1292: [dbus\dbus-connection.c(1154):_dbus_connection_release_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1160):_dbus_connection_release_io_path] start connection->io_path_acquired = 1 1292: [dbus\dbus-connection.c(1165):_dbus_connection_release_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1522):_dbus_connection_handle_watch] middle 1292: [dbus\dbus-connection.c(4222):_dbus_connection_get_dispatch_status_unlocked] dispatch status = complete is_connected = 1 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1529):_dbus_connection_handle_watch] end 1292: [dbus\dbus-watch.c(696):dbus_watch_handle] After sanitization, watch flags on fd 1932 were 0 1292: [dbus\dbus-sysdeps-win.c(1110):_dbus_poll] select: to=3484 R:1944 E:1944 R:1936 E:1936 R:1932 E:1932 [dbus\dbus-sysdeps-win.c(1162):_dbus_poll] select: = 1: R:1932 [dbus\dbus-connection.c(1503):_dbus_connection_handle_watch] start 1292: [dbus\dbus-connection.c(1505):_dbus_connection_handle_watch] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(1081):_dbus_connection_acquire_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1085):_dbus_connection_acquire_io_path] start connection->io_path_acquired = 0 timeout = 1 1292: [dbus\dbus-connection.c(1128):_dbus_connection_acquire_io_path] end connection->io_path_acquired = 1 we_acquired = 1 1292: [dbus\dbus-connection.c(1130):_dbus_connection_acquire_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1133):_dbus_connection_acquire_io_path] LOCK 1292: [dbus\dbus-transport-socket.c(919):socket_handle_watch] handling read watch 003d6f58 flags = 1 1292: [dbus\dbus-transport-socket.c(345):exchange_credentials] exchange_credentials: do_reading = 1, do_writing = 0 1292: [dbus\dbus-transport-socket.c(446):do_authentication] server auth state:waiting for input 1292: [dbus\dbus-sysdeps-win.c(207):_dbus_read_socket] recv: count=2048 fd=1932 1292: [dbus\dbus-sysdeps-win.c(217):_dbus_read_socket] recv: = 135 1292: [dbus\dbus-transport-socket.c(263):read_data_into_auth] read 135 bytes in auth phase 1292: [dbus\dbus-auth.c(2187):process_command] server: got command "BEGIN" 1292: [dbus\dbus-auth.c(2134):goto_state] server: going from state WaitingForBegin to state Authenticated 1292: [dbus\dbus-sysdeps-win.c(787):_dbus_getsid] _dbus_getsid() returns 1 1292: [dbus\dbus-transport.c(673):auth_via_default_rules] Client authorized as S ID 'S-1-5-18' but our SID is 'S-1-5-21-4012214046-2405994403-1636280286-500', disconnecting 1292: [dbus\dbus-transport.c(503):_dbus_transport_disconnect] start 1292: [dbus\dbus-transport-socket.c(985):socket_disconnect] 1292: [dbus\dbus-transport-socket.c(76):free_watches] start 1292: [dbus\dbus-watch.c(417):_dbus_watch_list_remove_watch] Removing watch on fd 1932 1292: [dbus\dbus-watch.c(417):_dbus_watch_list_remove_watch] Removing watch on fd 1932 1292: [dbus\dbus-socket-set-poll.c(221):socket_set_poll_remove] after removing fd 1932 from 003d2430, 2 en/2 res/9 alloc 1292: [dbus\dbus-watch.c(628):dbus_watch_set_data] Setting watch fd -1 data to data = 00000000 function = 00000000 from data = 00000000 function = 00000000 1292: [dbus\dbus-transport-socket.c(98):free_watches] end 1292: [dbus\dbus-sysdeps-win.c(317):_dbus_close_socket] _dbus_close_socket: socket=1932, 1292: [dbus\dbus-transport.c(514):_dbus_transport_disconnect] end 1292: [dbus\dbus-transport-socket.c(180):check_read_watch] fd = -1 1292: [dbus\dbus-transport-socket.c(703):do_reading] fd = -1 1292: [dbus\dbus-watch.c(628):dbus_watch_set_data] Setting watch fd -1 data to data = 00000000 function = 00000000 from data = 00000000 function = 00000000 1292: [dbus\dbus-connection.c(1154):_dbus_connection_release_io_path] locking io_path_mutex 1292: [dbus\dbus-connection.c(1160):_dbus_connection_release_io_path] start connection->io_path_acquired = 1 1292: [dbus\dbus-connection.c(1165):_dbus_connection_release_io_path] unlockingio_path_mutex 1292: [dbus\dbus-connection.c(1522):_dbus_connection_handle_watch] middle 1292: [dbus\dbus-connection.c(4222):_dbus_connection_get_dispatch_status_unlocked] dispatch status = complete is_connected = 0 1292: [dbus\dbus-connection.c(4184):notify_disconnected_and_dispatch_complete_unlocked] Sending disconnect message 1292: [dbus\dbus-connection.c(567):_dbus_connection_queue_synthesized_message_link] Synthesized message 003d8948 added to incoming queue 003d88b0, 1 incoming 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4299):_dbus_connection_update_dispatch_status_and_unlock] Notifying of change to dispatch status of 003d88b0 now 0 (data remains) 1292: [dbus\dbus-connection.c(1529):_dbus_connection_handle_watch] end 1292: [dbus\dbus-connection.c(4515):dbus_connection_dispatch] 1292: [dbus\dbus-connection.c(4517):dbus_connection_dispatch] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4090):_dbus_connection_acquire_dispatch] locking dispatch_mutex 1292: [dbus\dbus-connection.c(4104):_dbus_connection_acquire_dispatch] unlocking dispatch_mutex 1292: [dbus\dbus-connection.c(4107):_dbus_connection_acquire_dispatch] LOCK 1292: [dbus\dbus-connection.c(3954):_dbus_connection_pop_message_link_unlocked]Message 003d8948 (signal /org/freedesktop/DBus/Local org.freedesktop.DBus.Local Disconnected '') removed from incoming queue 003d88b0, 0 incoming 1292: [dbus\dbus-connection.c(4563):dbus_connection_dispatch] dispatching message 003d8948 (signal org.freedesktop.DBus.Local Disconnected '') 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4630):dbus_connection_dispatch] running filter on message 003d8948 1292: [dbus\dbus-connection.c(3126):dbus_connection_preallocate_send] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [bus\dispatch.c(216):bus_dispatch] DISPATCH: org.freedesktop.DBus.Local Disconnected (no error name) to peer 1292: [bus\connection.c(198):bus_connection_disconnected] (inactive) disconnected, dropping all service ownership and releasing 1292: [dbus\dbus-connection.c(5526):dbus_connection_remove_filter] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4891):dbus_connection_set_watch_functions] LOCK 1292: [dbus\dbus-watch.c(347):_dbus_watch_list_set_functions] Removing all pre-existing watches 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4954):dbus_connection_set_timeout_functions] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(5268):dbus_connection_set_unix_user_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(5367):dbus_connection_set_windows_user_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(5037):dbus_connection_set_dispatch_status_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [bus\connection.c(1587):bus_connection_drop_pending_replies] Dropping pending replies that involve connection 003d88b0 1292: [dbus\dbus-connection.c(4644):dbus_connection_dispatch] LOCK 1292: [dbus\dbus-connection.c(4653):dbus_connection_dispatch] filter handled message in dispatch 1292: [dbus\dbus-connection.c(4784):dbus_connection_dispatch] ... done dispatching 1292: [dbus\dbus-connection.c(4123):_dbus_connection_release_dispatch] locking dispatch_mutex 1292: [dbus\dbus-connection.c(4131):_dbus_connection_release_dispatch] unlocking dispatch_mutex 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4801):dbus_connection_dispatch] LOCK 1292: [dbus\dbus-connection.c(4807):dbus_connection_dispatch] before final status update 1292: [dbus\dbus-connection.c(4222):_dbus_connection_get_dispatch_status_unlocked] dispatch status = complete is_connected = 0 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(2670):_dbus_connection_last_unref] Finalizing connection 003d88b0 1292: [dbus\dbus-connection.c(5037):dbus_connection_set_dispatch_status_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(4991):dbus_connection_set_wakeup_main_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-connection.c(5268):dbus_connection_set_unix_user_function] LOCK 1292: [dbus\dbus-connection.c(413):_dbus_connection_unlock] UNLOCK 1292: [dbus\dbus-transport.c(484):_dbus_transport_unref] finalizing 1292: [dbus\dbus-transport-socket.c(106):socket_finalize] 1292: [dbus\dbus-transport-socket.c(76):free_watches] start 1292: [dbus\dbus-transport-socket.c(98):free_watches] end 1292: [dbus\dbus-auth.c(430):shutdown_mech] server: Shutting down mechanism DBUS_COOKIE_SHA1 1292: [dbus\dbus-sysdeps-win.c(1110):_dbus_poll] select: to=0 R:1944 E:1944 R:1936 E:1936 [dbus\dbus-sysdeps-win.c(1140):_dbus_poll] select: = 0 1292: [bus\connection.c(828):expire_incomplete_timeout] Running 1292: [bus\expirelist.c(111):bus_expire_timeout_set_interval] Disabled an expire timeout 1292: [dbus\dbus-sysdeps-win.c(1110):_dbus_poll] select: to=-1 R:1944 E:1944 R:1936 E:1936 [...] 

我真的不知道这个问题会是什么,并希望得到任何帮助。

编辑:这似乎有同样的问题: http : //comments.gmane.org/gmane.comp.freedesktop.dbus/14895

Solutions Collecting From Web of "作为服务运行时,QtService应用程序无法连接到系统总线"

最后,我解决了这个问题,现在我的服务能够连接到系统总线。

我做了以下更改:

在system.conf中,我更改了listen属性和认证属性:

 <listen>tcp:host=localhost,port=13337,family=ipv4</listen> <auth>ANONYMOUS</auth> <allow_anonymous/> 

根据这些变化,我设置了类似的系统环境变量:

 DBUS_SYSTEM_BUS_ADDRESS = tcp:host=localhost,port=13337,family=ipv4 DBUS_SYSTEM_BUS_DEFAULT_ADDRESS = tcp:host=localhost,port=13337,family=ipv4 

这个答案使我朝着正确的方向前进。