Net::DBus::RemoteObject - Online Linux Manual PageSection : 3pm
Updated : 2020-11-09
Source : perl v5.32.0
Note : User Contributed Perl Documentation
NAMENet::DBus::RemoteObject − Access objects provided on the bus
SYNOPSIS​ my $service = $bus−>get_service("org.freedesktop.DBus"); ​ my $object = $service−>get_object("/org/freedesktop/DBus"); ​ ​ print "Names on the bus {\n"; ​ foreach my $name (sort @{$object−>ListNames}) { ​ print " ", $name, "\n"; ​ } ​ print "}\n";
DESCRIPTIONThis module provides the API for accessing remote objects available on the bus. It uses the autoloader to fake the presence of methods based on the API of the remote object. There is also support for setting callbacks against signals, and accessing properties of the object.
METHODSmy $object = Net::DBus::RemoteObject−>new($service, $object_path[, $interface], \%params); Creates a new handle to a remote object. The $service parameter is an instance of the Net::DBus::RemoteService method, and $object_path is the identifier of an object exported by this service, for example /org/freedesktop/DBus. For remote objects which implement more than one interface it is possible to specify an optional name of an interface as the third parameter. This is only really required, however, if two interfaces in the object provide methods with the same name, since introspection data can be used to automatically resolve the correct interface to call cases where method names are unique. Rather than using this constructor directly, it is preferable to use the get_object method on Net::DBus::RemoteService, since this caches handles to remote objects, eliminating unnecessary introspection data lookups. The %params parameter contains extra configuration parameters for the object. Currently a single parameter is supported, timeout which takes a value in milliseconds to use as the timeout for method calls on the object. my $object = $object−>as_interface($interface); Casts the object to a specific interface, returning a new instance of the Net::DBus::RemoteObject specialized to the desired interface. It is only necessary to cast objects to a specific interface, if two interfaces export methods or signals with the same name, or the remote object does not support introspection. my $service = $object−>get_service Retrieves a handle for the remote service on which this object is attached. The returned object is an instance of Net::DBus::RemoteService my $path = $object−>get_object_path Retrieves the unique path identifier for this object within the service. my $object = $object−>get_child_object($subpath, [$interface]) Retrieves a handle to a child of this object, identified by the relative path $subpath. The returned object is an instance of Net::DBus::RemoteObject. The optional ​$interface parameter can be used to immediately cast the object to a specific type. my $sigid = $object−>connect_to_signal($name, $coderef); Connects a callback to a signal emitted by the object. The $name parameter is the name of the signal within the object, and $coderef is a reference to an anonymous subroutine. When the signal $name is emitted by the remote object, the subroutine $coderef will be invoked, and passed the parameters from the signal. A unique $sigid will be returned, which can be later passed to disconnect_from_signal to remove the handler $object−>disconnect_from_signal($name, $sigid); Disconnects from a signal emitted by the object. The $name parameter is the name of the signal within the object. The ​$sigid must be the unique signal handler ID returned by a previous connect_to_signal method call.
AUTHORDaniel Berrange <dan@berrange.com>
COPYRIGHTCopright (C) 2004−2011, Daniel Berrange.
SEE ALSONet::DBus::RemoteService, Net::DBus::Object, Net::DBus::Annotation 0
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