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Zdd Z e Z
dS )r a^ A base class for exporting your own Named Services across the Bus.
When instantiated, objects of this class attempt to claim the given
well-known name on the given bus for the current process. The name is
released when the BusName object becomes unreferenced.
If a well-known name is requested multiple times, multiple references
to the same BusName object will be returned.
Caveats
-------
- Assumes that named services are only ever requested using this class -
if you request names from the bus directly, confusion may occur.
- Does not handle queueing.
NFc
C s t |ddd |dkr4ddl}|jdtdd t }||jkrH|j| S |rRtjpTd|r^tjp`dB |rltj pndB }|j
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krt|n |tjkrntd ||f tj| } || _|| _| |j|< | S )
aS Constructor, which may either return an existing cached object
or a new object.
:Parameters:
`name` : str
The well-known name to be advertised
`bus` : dbus.Bus
A Bus on which this service will be advertised.
Omitting this parameter or setting it to None has been
deprecated since version 0.82.1. For backwards compatibility,
if this is done, the global shared connection to the session
bus will be used.
`allow_replacement` : bool
If True, other processes trying to claim the same well-known
name will take precedence over this one.
`replace_existing` : bool
If True, this process can take over the well-known name
from other processes already holding it.
`do_not_queue` : bool
If True, this service will not be placed in the queue of
services waiting for the requested name if another service
already holds it.
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Oc C s^ d}d}d}|rx| j jD ]}| rz||jkrzd|j| jkrvd|j| jkrv|j| j|krz|}|j| }d}P qzn|}|r||jkrd|j| jkrd|j| jkr|j| j|kr|j| }d}P qW nTxR| j jD ]F}| r||jkr|}|r||jkrd|j| jkr|j| }d}P qW |r6|j| |fS |rNtd||f n td| dS )zWalks the Python MRO of the given class to find the method to invoke.
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dd Zeeddddddd Zdd ZeZdS ) r a A base class for exporting your own Objects across the Bus.
Just inherit from Object and mark exported methods with the
@\ `dbus.service.method` or @\ `dbus.service.signal` decorator.
Example::
class Example(dbus.service.object):
def __init__(self, object_path):
dbus.service.Object.__init__(self, dbus.SessionBus(), path)
self._last_input = None
@dbus.service.method(interface='com.example.Sample',
in_signature='v', out_signature='s')
def StringifyVariant(self, var):
self.LastInputChanged(var) # emits the signal
return str(var)
@dbus.service.signal(interface='com.example.Sample',
signature='v')
def LastInputChanged(self, var):
# run just before the signal is actually emitted
# just put "pass" if nothing should happen
self._last_input = var
@dbus.service.method(interface='com.example.Sample',
in_signature='', out_signature='v')
def GetLastInput(self):
return self._last_input
FNc C s |dk rt | t|tr(|}|j }n|dkr@|dk r@|j }d| _d| _g | _tj | _ d| _
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|| dS )a Constructor. Either conn or bus_name is required; object_path
is also required.
:Parameters:
`conn` : dbus.connection.Connection or None
The connection on which to export this object.
If None, use the Bus associated with the given ``bus_name``.
If there is no ``bus_name`` either, the object is not
initially available on any Connection.
For backwards compatibility, if an instance of
dbus.service.BusName is passed as the first parameter,
this is equivalent to passing its associated Bus as
``conn``, and passing the BusName itself as ``bus_name``.
`object_path` : str or None
A D-Bus object path at which to make this Object available
immediately. If this is not None, a `conn` or `bus_name` must
also be provided.
`bus_name` : dbus.service.BusName or None
Represents a well-known name claimed by this process. A
reference to the BusName object will be held by this
Object, preventing the name from being released during this
Object's lifetime (unless it's released manually).
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:Parameters:
`connection` : dbus.connection.Connection or None
Only remove the object from this Connection. If None,
remove from all Connections on which it's exported.
`path` : dbus.ObjectPath or other str, or None
Only remove the object from this object path. If None,
remove from all object paths.
:Raises LookupError:
if the object was not exported on the requested connection
or path, or (if both are None) was not exported at all.
:Since: 0.81.1
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out_signatureZ path_keywordZconnection_keywordc C s t j}|d| 7 }| j| jjd | jj }xt|j D ]h\}}|d| 7 }xJ|j D ]>}t|ddrv|| jj |7 }qTt|ddrT|| jj
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zObject.__repr__)NNN)NN)r r r r! r r r4 propertyr~ rJ r ry r r r r r r r9 r: r r r r r s
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1nc s& e Zd ZdZdZd fdd Z ZS )r zaAn object that implements an entire subtree of the object-path
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:Since: 0.82.0
TNc sP t t| j d| _|dkr.|dk rLtdn |dkr@tdn | j|| dS )aH Constructor.
Note that the superclass' ``bus_name`` __init__ argument is not
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:Parameters:
`conn` : dbus.connection.Connection or None
The connection on which to export this object. If this is not
None, an `object_path` must also be provided.
If None, the object is not initially available on any
Connection.
`object_path` : str or None
A D-Bus object path at which to make this Object available
immediately. If this is not None, a `conn` must also be
provided.
This object will implements all object-paths in the subtree
starting at this object-path, except where a more specific
object has been added.
TNz)If object_path is given, conn is requiredz)If conn is given, object_path is required)rc r r4 rw rx ry )r rz r{ )r= r r r4 # s
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