[daemon-dev][daemon-fix] starting services by direct message (autostart) and some...
[platform/upstream/dbus.git] / dbus / dbus-connection.h
index 1e78c1f..a3afb93 100644 (file)
@@ -1,4 +1,4 @@
-/* -*- mode: C; c-file-style: "gnu" -*- */
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 /* dbus-connection.h DBusConnection object
  *
  * Copyright (C) 2002, 2003  Red Hat Inc.
@@ -17,7 +17,7 @@
  * 
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 #if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION)
 
 DBUS_BEGIN_DECLS
 
+/**
+ * @addtogroup DBusConnection
+ * @{
+ */
+
+/* documented in dbus-watch.c */
 typedef struct DBusWatch DBusWatch;
+/* documented in dbus-timeout.c */
 typedef struct DBusTimeout DBusTimeout;
+/** Opaque type representing preallocated resources so a message can be sent without further memory allocation. */
 typedef struct DBusPreallocatedSend DBusPreallocatedSend;
+/** Opaque type representing a method call that has not yet received a reply. */
 typedef struct DBusPendingCall DBusPendingCall;
+/** Opaque type representing a connection to a remote application and associated incoming/outgoing message queues. */
 typedef struct DBusConnection DBusConnection;
+/** Set of functions that must be implemented to handle messages sent to a particular object path. */
 typedef struct DBusObjectPathVTable DBusObjectPathVTable;
 
+/**
+ * Indicates the status of a #DBusWatch.
+ */
 typedef enum
 {
   DBUS_WATCH_READABLE = 1 << 0, /**< As in POLLIN */
   DBUS_WATCH_WRITABLE = 1 << 1, /**< As in POLLOUT */
-  DBUS_WATCH_ERROR    = 1 << 2, /**< As in POLLERR (can't watch for this, but
-                                 *   the flag can be passed to dbus_watch_handle()).
+  DBUS_WATCH_ERROR    = 1 << 2, /**< As in POLLERR (can't watch for
+                                 *   this, but can be present in
+                                 *   current state passed to
+                                 *   dbus_watch_handle()).
+                                 */
+  DBUS_WATCH_HANGUP   = 1 << 3  /**< As in POLLHUP (can't watch for
+                                 *   it, but can be present in current
+                                 *   state passed to
+                                 *   dbus_watch_handle()).
                                  */
-  DBUS_WATCH_HANGUP   = 1 << 3  /**< As in POLLHUP (can't watch for it, but
-                                 *   can be present in current state). */
+  /* Internal to libdbus, there is also _DBUS_WATCH_NVAL in dbus-watch.h */
 } DBusWatchFlags;
 
+/**
+ * Indicates the status of incoming data on a #DBusConnection. This determines whether
+ * dbus_connection_dispatch() needs to be called.
+ */
 typedef enum
 {
   DBUS_DISPATCH_DATA_REMAINS,  /**< There is more data to potentially convert to messages. */
@@ -59,154 +83,284 @@ typedef enum
   DBUS_DISPATCH_NEED_MEMORY    /**< More memory is needed to continue. */
 } DBusDispatchStatus;
 
+/** Called when libdbus needs a new watch to be monitored by the main
+ * loop. Returns #FALSE if it lacks enough memory to add the
+ * watch. Set by dbus_connection_set_watch_functions() or
+ * dbus_server_set_watch_functions().
+ */
 typedef dbus_bool_t (* DBusAddWatchFunction)       (DBusWatch      *watch,
                                                     void           *data);
+/** Called when dbus_watch_get_enabled() may return a different value
+ *  than it did before.  Set by dbus_connection_set_watch_functions()
+ *  or dbus_server_set_watch_functions().
+ */
 typedef void        (* DBusWatchToggledFunction)   (DBusWatch      *watch,
                                                     void           *data);
+/** Called when libdbus no longer needs a watch to be monitored by the
+ * main loop. Set by dbus_connection_set_watch_functions() or
+ * dbus_server_set_watch_functions().
+ */
 typedef void        (* DBusRemoveWatchFunction)    (DBusWatch      *watch,
                                                     void           *data);
+/** Called when libdbus needs a new timeout to be monitored by the main
+ * loop. Returns #FALSE if it lacks enough memory to add the
+ * watch. Set by dbus_connection_set_timeout_functions() or
+ * dbus_server_set_timeout_functions().
+ */
 typedef dbus_bool_t (* DBusAddTimeoutFunction)     (DBusTimeout    *timeout,
                                                     void           *data);
+/** Called when dbus_timeout_get_enabled() may return a different
+ * value than it did before.
+ * Set by dbus_connection_set_timeout_functions() or
+ * dbus_server_set_timeout_functions().
+ */
 typedef void        (* DBusTimeoutToggledFunction) (DBusTimeout    *timeout,
                                                     void           *data);
+/** Called when libdbus no longer needs a timeout to be monitored by the
+ * main loop. Set by dbus_connection_set_timeout_functions() or
+ * dbus_server_set_timeout_functions().
+ */
 typedef void        (* DBusRemoveTimeoutFunction)  (DBusTimeout    *timeout,
                                                     void           *data);
+/** Called when the return value of dbus_connection_get_dispatch_status()
+ * may have changed. Set with dbus_connection_set_dispatch_status_function().
+ */
 typedef void        (* DBusDispatchStatusFunction) (DBusConnection *connection,
                                                     DBusDispatchStatus new_status,
                                                     void           *data);
+/**
+ * Called when the main loop's thread should be notified that there's now work
+ * to do. Set with dbus_connection_set_wakeup_main_function().
+ */
 typedef void        (* DBusWakeupMainFunction)     (void           *data);
+
+/**
+ * Called during authentication to check whether the given UNIX user
+ * ID is allowed to connect, if the client tried to auth as a UNIX
+ * user ID. Normally on Windows this would never happen. Set with
+ * dbus_connection_set_unix_user_function().
+ */ 
 typedef dbus_bool_t (* DBusAllowUnixUserFunction)  (DBusConnection *connection,
                                                     unsigned long   uid,
                                                     void           *data);
 
+/**
+ * Called during authentication to check whether the given Windows user
+ * ID is allowed to connect, if the client tried to auth as a Windows
+ * user ID. Normally on UNIX this would never happen. Set with
+ * dbus_connection_set_windows_user_function().
+ */ 
+typedef dbus_bool_t (* DBusAllowWindowsUserFunction)  (DBusConnection *connection,
+                                                       const char     *user_sid,
+                                                       void           *data);
+
+
+/**
+ * Called when a pending call now has a reply available. Set with
+ * dbus_pending_call_set_notify().
+ */
 typedef void (* DBusPendingCallNotifyFunction) (DBusPendingCall *pending,
                                                 void            *user_data);
 
-
+/**
+ * Called when a message needs to be handled. The result indicates whether or
+ * not more handlers should be run. Set with dbus_connection_add_filter().
+ */
 typedef DBusHandlerResult (* DBusHandleMessageFunction) (DBusConnection     *connection,
                                                          DBusMessage        *message,
                                                          void               *user_data);
 
+DBUS_EXPORT
+DBusMessage *     generate_local_error_message                                 (dbus_uint32_t serial,
+                                                                                                char *error_name,
+                                                                                                char *error_msg);
+DBUS_EXPORT
 DBusConnection*    dbus_connection_open                         (const char                 *address,
                                                                  DBusError                  *error);
+DBUS_EXPORT
 DBusConnection*    dbus_connection_open_private                 (const char                 *address,
                                                                  DBusError                  *error);
+DBUS_EXPORT
 DBusConnection*    dbus_connection_ref                          (DBusConnection             *connection);
+DBUS_EXPORT
 void               dbus_connection_unref                        (DBusConnection             *connection);
+DBUS_EXPORT
+void               dbus_connection_unref_phantom               (DBusConnection             *connection);
+DBUS_EXPORT
 void               dbus_connection_close                        (DBusConnection             *connection);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_get_is_connected             (DBusConnection             *connection);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_get_is_authenticated         (DBusConnection             *connection);
+DBUS_EXPORT
+dbus_bool_t        dbus_connection_set_is_authenticated         (DBusConnection             *connection);
+DBUS_EXPORT
+dbus_bool_t        dbus_connection_get_is_anonymous             (DBusConnection             *connection);
+DBUS_EXPORT
+char*              dbus_connection_get_server_id                (DBusConnection             *connection);
+DBUS_EXPORT
+dbus_bool_t        dbus_connection_can_send_type                (DBusConnection             *connection,
+                                                                 int                         type);
+
+DBUS_EXPORT
 void               dbus_connection_set_exit_on_disconnect       (DBusConnection             *connection,
                                                                  dbus_bool_t                 exit_on_disconnect);
+DBUS_EXPORT
 void               dbus_connection_flush                        (DBusConnection             *connection);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_read_write_dispatch          (DBusConnection             *connection,
                                                                  int                         timeout_milliseconds);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_read_write                   (DBusConnection             *connection,
                                                                  int                         timeout_milliseconds);
+DBUS_EXPORT
 DBusMessage*       dbus_connection_borrow_message               (DBusConnection             *connection);
+DBUS_EXPORT
 void               dbus_connection_return_message               (DBusConnection             *connection,
                                                                  DBusMessage                *message);
+DBUS_EXPORT
 void               dbus_connection_steal_borrowed_message       (DBusConnection             *connection,
                                                                  DBusMessage                *message);
+DBUS_EXPORT
 DBusMessage*       dbus_connection_pop_message                  (DBusConnection             *connection);
+DBUS_EXPORT
 DBusDispatchStatus dbus_connection_get_dispatch_status          (DBusConnection             *connection);
+DBUS_EXPORT
 DBusDispatchStatus dbus_connection_dispatch                     (DBusConnection             *connection);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_has_messages_to_send         (DBusConnection *connection);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_send                         (DBusConnection             *connection,
                                                                  DBusMessage                *message,
                                                                  dbus_uint32_t              *client_serial);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_send_with_reply              (DBusConnection             *connection,
                                                                  DBusMessage                *message,
                                                                  DBusPendingCall           **pending_return,
                                                                  int                         timeout_milliseconds);
+DBUS_EXPORT
 DBusMessage *      dbus_connection_send_with_reply_and_block    (DBusConnection             *connection,
                                                                  DBusMessage                *message,
                                                                  int                         timeout_milliseconds,
                                                                  DBusError                  *error);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_set_watch_functions          (DBusConnection             *connection,
                                                                  DBusAddWatchFunction        add_function,
                                                                  DBusRemoveWatchFunction     remove_function,
                                                                  DBusWatchToggledFunction    toggled_function,
                                                                  void                       *data,
                                                                  DBusFreeFunction            free_data_function);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_set_timeout_functions        (DBusConnection             *connection,
                                                                  DBusAddTimeoutFunction      add_function,
                                                                  DBusRemoveTimeoutFunction   remove_function,
                                                                  DBusTimeoutToggledFunction  toggled_function,
                                                                  void                       *data,
                                                                  DBusFreeFunction            free_data_function);
+DBUS_EXPORT
 void               dbus_connection_set_wakeup_main_function     (DBusConnection             *connection,
                                                                  DBusWakeupMainFunction      wakeup_main_function,
                                                                  void                       *data,
                                                                  DBusFreeFunction            free_data_function);
+DBUS_EXPORT
 void               dbus_connection_set_dispatch_status_function (DBusConnection             *connection,
                                                                  DBusDispatchStatusFunction  function,
                                                                  void                       *data,
                                                                  DBusFreeFunction            free_data_function);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_get_unix_user                (DBusConnection             *connection,
                                                                  unsigned long              *uid);
+DBUS_EXPORT
 dbus_bool_t        dbus_connection_get_unix_process_id          (DBusConnection             *connection,
                                                                  unsigned long              *pid);
+DBUS_EXPORT
+dbus_bool_t        dbus_connection_get_adt_audit_session_data   (DBusConnection             *connection,
+                                                                 void                      **data,
+                                                                 dbus_int32_t               *data_size);
+DBUS_EXPORT
 void               dbus_connection_set_unix_user_function       (DBusConnection             *connection,
                                                                  DBusAllowUnixUserFunction   function,
                                                                  void                       *data,
                                                                  DBusFreeFunction            free_data_function);
+DBUS_EXPORT
+dbus_bool_t        dbus_connection_get_windows_user             (DBusConnection             *connection,
+                                                                 char                      **windows_sid_p); 
+DBUS_EXPORT
+void               dbus_connection_set_windows_user_function    (DBusConnection             *connection,
+                                                                 DBusAllowWindowsUserFunction function,
+                                                                 void                       *data,
+                                                                 DBusFreeFunction            free_data_function);
+DBUS_EXPORT
+void               dbus_connection_set_allow_anonymous          (DBusConnection             *connection,
+                                                                 dbus_bool_t                 value);
+DBUS_EXPORT
 void               dbus_connection_set_route_peer_messages      (DBusConnection             *connection,
                                                                  dbus_bool_t                 value);
 
 
-int          dbus_watch_get_fd      (DBusWatch        *watch);
-unsigned int dbus_watch_get_flags   (DBusWatch        *watch);
-void*        dbus_watch_get_data    (DBusWatch        *watch);
-void         dbus_watch_set_data    (DBusWatch        *watch,
-                                     void             *data,
-                                     DBusFreeFunction  free_data_function);
-dbus_bool_t  dbus_watch_handle      (DBusWatch        *watch,
-                                     unsigned int      flags);
-dbus_bool_t  dbus_watch_get_enabled (DBusWatch        *watch);
-
-int         dbus_timeout_get_interval (DBusTimeout      *timeout);
-void*       dbus_timeout_get_data     (DBusTimeout      *timeout);
-void        dbus_timeout_set_data     (DBusTimeout      *timeout,
-                                       void             *data,
-                                       DBusFreeFunction  free_data_function);
-dbus_bool_t dbus_timeout_handle       (DBusTimeout      *timeout);
-dbus_bool_t dbus_timeout_get_enabled  (DBusTimeout      *timeout);
-
 /* Filters */
 
+DBUS_EXPORT
 dbus_bool_t dbus_connection_add_filter    (DBusConnection            *connection,
                                            DBusHandleMessageFunction  function,
                                            void                      *user_data,
                                            DBusFreeFunction           free_data_function);
+DBUS_EXPORT
 void        dbus_connection_remove_filter (DBusConnection            *connection,
                                            DBusHandleMessageFunction  function,
                                            void                      *user_data);
 
 
 /* Other */
+DBUS_EXPORT
 dbus_bool_t dbus_connection_allocate_data_slot (dbus_int32_t     *slot_p);
+DBUS_EXPORT
 void        dbus_connection_free_data_slot     (dbus_int32_t     *slot_p);
+DBUS_EXPORT
 dbus_bool_t dbus_connection_set_data           (DBusConnection   *connection,
                                                 dbus_int32_t      slot,
                                                 void             *data,
                                                 DBusFreeFunction  free_data_func);
+DBUS_EXPORT
 void*       dbus_connection_get_data           (DBusConnection   *connection,
                                                 dbus_int32_t      slot);
 
+DBUS_EXPORT
 void        dbus_connection_set_change_sigpipe (dbus_bool_t       will_modify_sigpipe); 
 
+DBUS_EXPORT
 void dbus_connection_set_max_message_size  (DBusConnection *connection,
                                             long            size);
+DBUS_EXPORT
 long dbus_connection_get_max_message_size  (DBusConnection *connection);
+DBUS_EXPORT
 void dbus_connection_set_max_received_size (DBusConnection *connection,
                                             long            size);
+DBUS_EXPORT
 long dbus_connection_get_max_received_size (DBusConnection *connection);
+
+DBUS_EXPORT
+void dbus_connection_set_max_message_unix_fds (DBusConnection *connection,
+                                               long            n);
+DBUS_EXPORT
+long dbus_connection_get_max_message_unix_fds (DBusConnection *connection);
+DBUS_EXPORT
+void dbus_connection_set_max_received_unix_fds(DBusConnection *connection,
+                                               long            n);
+DBUS_EXPORT
+long dbus_connection_get_max_received_unix_fds(DBusConnection *connection);
+
+DBUS_EXPORT
 long dbus_connection_get_outgoing_size     (DBusConnection *connection);
+DBUS_EXPORT
+long dbus_connection_get_outgoing_unix_fds (DBusConnection *connection);
 
+DBUS_EXPORT
 DBusPreallocatedSend* dbus_connection_preallocate_send       (DBusConnection       *connection);
+DBUS_EXPORT
 void                  dbus_connection_free_preallocated_send (DBusConnection       *connection,
                                                               DBusPreallocatedSend *preallocated);
+DBUS_EXPORT
 void                  dbus_connection_send_preallocated      (DBusConnection       *connection,
                                                               DBusPreallocatedSend *preallocated,
                                                               DBusMessage          *message,
@@ -215,15 +369,26 @@ void                  dbus_connection_send_preallocated      (DBusConnection
 
 /* Object tree functionality */
 
+/**
+ * Called when a #DBusObjectPathVTable is unregistered (or its connection is freed).
+ * Found in #DBusObjectPathVTable.
+ */
 typedef void              (* DBusObjectPathUnregisterFunction) (DBusConnection  *connection,
                                                                 void            *user_data);
+/**
+ * Called when a message is sent to a registered object path. Found in
+ * #DBusObjectPathVTable which is registered with dbus_connection_register_object_path()
+ * or dbus_connection_register_fallback().
+ */
 typedef DBusHandlerResult (* DBusObjectPathMessageFunction)    (DBusConnection  *connection,
                                                                 DBusMessage     *message,
                                                                 void            *user_data);
 
 /**
  * Virtual table that must be implemented to handle a portion of the
- * object path hierarchy.
+ * object path hierarchy. Attach the vtable to a particular path using
+ * dbus_connection_register_object_path() or
+ * dbus_connection_register_fallback().
  */
 struct DBusObjectPathVTable
 {
@@ -236,31 +401,104 @@ struct DBusObjectPathVTable
   void (* dbus_internal_pad4) (void *); /**< Reserved for future expansion */
 };
 
+DBUS_EXPORT
+dbus_bool_t dbus_connection_try_register_object_path (DBusConnection              *connection,
+                                                      const char                  *path,
+                                                      const DBusObjectPathVTable  *vtable,
+                                                      void                        *user_data,
+                                                      DBusError                   *error);
+
+DBUS_EXPORT
 dbus_bool_t dbus_connection_register_object_path   (DBusConnection              *connection,
                                                     const char                  *path,
                                                     const DBusObjectPathVTable  *vtable,
                                                     void                        *user_data);
+
+DBUS_EXPORT
+dbus_bool_t dbus_connection_try_register_fallback (DBusConnection              *connection,
+                                                   const char                  *path,
+                                                   const DBusObjectPathVTable  *vtable,
+                                                   void                        *user_data,
+                                                   DBusError                   *error);
+
+DBUS_EXPORT
 dbus_bool_t dbus_connection_register_fallback      (DBusConnection              *connection,
                                                     const char                  *path,
                                                     const DBusObjectPathVTable  *vtable,
                                                     void                        *user_data);
+DBUS_EXPORT
 dbus_bool_t dbus_connection_unregister_object_path (DBusConnection              *connection,
                                                     const char                  *path);
 
+DBUS_EXPORT
 dbus_bool_t dbus_connection_get_object_path_data   (DBusConnection              *connection,
                                                     const char                  *path,
                                                     void                       **data_p);
 
+DBUS_EXPORT
 dbus_bool_t dbus_connection_list_registered        (DBusConnection              *connection,
                                                     const char                  *parent_path,
                                                     char                      ***child_entries);
 
+DBUS_EXPORT
 dbus_bool_t dbus_connection_get_unix_fd            (DBusConnection              *connection,
                                                     int                         *fd);
+DBUS_EXPORT
 dbus_bool_t dbus_connection_get_socket             (DBusConnection              *connection,
                                                     int                         *fd);
 
-char*       dbus_get_local_machine_id              (void);
+/** @} */
+
+
+/**
+ * @addtogroup DBusWatch
+ * @{
+ */
+
+#ifndef DBUS_DISABLE_DEPRECATED
+DBUS_EXPORT
+DBUS_DEPRECATED int dbus_watch_get_fd      (DBusWatch        *watch);
+#endif
+
+DBUS_EXPORT
+int          dbus_watch_get_unix_fd (DBusWatch        *watch);
+DBUS_EXPORT
+int          dbus_watch_get_socket  (DBusWatch        *watch);
+DBUS_EXPORT
+unsigned int dbus_watch_get_flags   (DBusWatch        *watch);
+DBUS_EXPORT
+void*        dbus_watch_get_data    (DBusWatch        *watch);
+DBUS_EXPORT
+void         dbus_watch_set_data    (DBusWatch        *watch,
+                                     void             *data,
+                                     DBusFreeFunction  free_data_function);
+DBUS_EXPORT
+dbus_bool_t  dbus_watch_handle      (DBusWatch        *watch,
+                                     unsigned int      flags);
+DBUS_EXPORT
+dbus_bool_t  dbus_watch_get_enabled (DBusWatch        *watch);
+
+/** @} */
+
+/**
+ * @addtogroup DBusTimeout
+ * @{
+ */
+
+DBUS_EXPORT
+int         dbus_timeout_get_interval (DBusTimeout      *timeout);
+DBUS_EXPORT
+void*       dbus_timeout_get_data     (DBusTimeout      *timeout);
+DBUS_EXPORT
+void        dbus_timeout_set_data     (DBusTimeout      *timeout,
+                                       void             *data,
+                                       DBusFreeFunction  free_data_function);
+DBUS_EXPORT
+dbus_bool_t dbus_timeout_handle       (DBusTimeout      *timeout);
+DBUS_EXPORT
+dbus_bool_t dbus_timeout_get_enabled  (DBusTimeout      *timeout);
+
+/** @} */
 
 DBUS_END_DECLS