* Asynchronous Methods:: Calling methods non-blocking.
* Receiving Method Calls:: Offering own methods.
* Signals:: Sending and receiving signals.
+* Alternative Buses:: Alternative buses.
* Errors and Events:: Errors and events.
* Index:: Index including concepts, functions, variables.
types are represented by the type symbols @code{:byte},
@code{:boolean}, @code{:int16}, @code{:uint16}, @code{:int32},
@code{:uint32}, @code{:int64}, @code{:uint64}, @code{:double},
-@code{:string}, @code{:object-path} and @code{:signature}.
+@code{:string}, @code{:object-path}, @code{:signature} and
+@code{:unix-fd}.
@noindent
Example:
@item DBUS_TYPE_UINT16 @tab @expansion{} @tab natural number
@item DBUS_TYPE_INT16 @tab @expansion{} @tab integer
@item DBUS_TYPE_UINT32 @tab @expansion{} @tab natural number or float
+@item DBUS_TYPE_UNIX_FD @tab @expansion{} @tab natural number or float
@item DBUS_TYPE_INT32 @tab @expansion{} @tab integer or float
@item DBUS_TYPE_UINT64 @tab @expansion{} @tab natural number or float
@item DBUS_TYPE_INT64 @tab @expansion{} @tab integer or float
@end example
A float object in case of @code{DBUS_TYPE_UINT32},
-@code{DBUS_TYPE_INT32}, @code{DBUS_TYPE_UINT64} and
-@code{DBUS_TYPE_INT6432} is returned, when the C value exceeds the
-Emacs number size range.
+@code{DBUS_TYPE_INT32}, @code{DBUS_TYPE_UINT64},
+@code{DBUS_TYPE_INT64} and @code{DBUS_TYPE_UNIX_FD} is returned, when
+the C value exceeds the Emacs number size range.
The resulting list of the last 4 D-Bus compound types contains as
elements the elements of the D-Bus container, mapped according to the
@end defun
+@node Alternative Buses
+@chapter Alternative buses.
+@cindex bus names
+@cindex UNIX domain socket
+
+Until now, we have spoken about the system and the session buses,
+which are the default buses to be connected to. However, it is
+possible to connect to any bus, from which the address is known. This
+is a UNIX domain socket. Everywhere, where a @var{bus} is mentioned
+as argument of a function (the symbol @code{:system} or the symbol
+@code{:session}), this address can be used instead. The connection to
+this bus must be initialized first.
+
+@defun dbus-init-bus bus
+Establish the connection to D-Bus @var{bus}.
+
+@var{bus} can be either the symbol @code{:system} or the symbol
+@code{:session}, or it can be a string denoting the address of the
+corresponding bus. For the system and session busses, this function
+is called when loading @file{dbus.el}, there is no need to call it
+again.
+
+Example: You open another session bus in a terminal window on your host:
+
+@example
+# eval `dbus-launch --auto-syntax`
+# echo $DBUS_SESSION_BUS_ADDRESS
+
+@print{} unix:abstract=/tmp/dbus-JoFtAVG92w,guid=2f320a1ebe50b7ef58e
+@end example
+
+In Emacs, you can access to this bus via its address:
+
+@lisp
+(setq my-bus
+ "unix:abstract=/tmp/dbus-JoFtAVG92w,guid=2f320a1ebe50b7ef58e")
+
+@result{} "unix:abstract=/tmp/dbus-JoFtAVG92w,guid=2f320a1ebe50b7ef58e"
+
+(dbus-init-bus my-bus)
+
+@result{} nil
+
+(dbus-get-unique-name my-bus)
+
+@result{} ":1.0"
+@end lisp
+@end defun
+
+
@node Errors and Events
@chapter Errors and events.
@cindex debugging