3 ^žìM)ã@sPdZdZd ZddlmZddlZddlZddlmZm Z m Z d d„Z d d„Z dS) z%Utils for using deferreds with D-Bus.z%Sebastian Heinlein Údbus_deferred_methodÚ deferableé)ÚwrapsNé)ÚdeferÚDeferredÚDeferredExceptioncs‡‡fdd„}|S)a¦Export the decorated method on the D-Bus and handle a maybe returned Deferred. This decorator can be applied to methods in the same way as the @dbus.service.method method, but it correctly handles the case where the method returns a Deferred. This decorator was kindly taken from James Henstridge blog post and adopted: http://blogs.gnome.org/jamesh/2009/07/06/watching-iview-with-rygel/ cs0tjjˆˆŽˆƒ‰tˆƒ‡fdd„ƒ}d|_|S)NcsP‡fdd„}|jdƒ‰|jdƒ‰tˆf|ž|Ž}|j|ƒ|j‡fdd„ƒdS)Ncs|dkrˆƒnˆ|ŽdS)N)N©)Zcb_args)Ú dbus_callbackr ú-/usr/lib/python3/dist-packages/defer/utils.pyÚignore_none_callback5szVdbus_deferred_method..decorator..wrapper..ignore_none_callbackÚ_dbus_callbackÚ _dbus_errbackcs ˆ|jƒS)N)Úvalue)Úerror)Ú dbus_errbackr r Ú@szJdbus_deferred_method..decorator..wrapper..)ÚpoprZ add_callbackZ add_errback)ÚargsÚkwargsr Údeferred)Úfunction)r rr Úwrapper3s     z8dbus_deferred_method..decorator..wrapperr r)r r)ÚdbusÚserviceÚmethodrZ_dbus_async_callbacks)rr)rr)rr Ú decorator1sz'dbus_deferred_method..decoratorr )rrrr )rrr r%s cstˆƒ‡fdd„ƒ}|S)a:Add a defer attribute to the decorated function and return a Deferred object. The callback of the Deferred will be passed as reply_handler argument and the errback as the error_handler argument to the decorated function. This decorator allows to easily make use of Deferreds in a DBus client. cs dd„‰y|jdƒ}WnJtk r`tjƒ}y|dddk}Wntk rZd}YnXYnX|r–tƒ‰ˆj|d<‡‡fd d „|d <ˆ||ŽˆSˆ||ŽS) NcSs(t|tƒr|j|ƒn|jt|ƒƒdS)N)Ú isinstancerZerrback)rrr r r Úon_errorRs  z/deferable.._deferable..on_errorrééZ_inline_callbacksFZ reply_handlercs ˆ|ˆƒS)Nr )Úerr)rrr r rhsz/deferable.._deferable..Z error_handler)rÚKeyErrorÚinspectÚstackÚ IndexErrorrÚcallback)rrZto_deferr$)Úfunc)rrr Ú _deferablePs   zdeferable.._deferable)r)r'r(r )r'r rHs)rr) Ú__doc__Ú __author__Ú__all__Ú functoolsrr#rÚrrrrrr r r r Ús #