B ‹æ@\ ã@s^dZddlmZmZmZmZddlZe e¡Z ddl m Z dZ dd„Z d ZGd d „d eƒZdS) z é)Úabsolute_importÚdivisionÚprint_functionÚunicode_literalsNé)Úwraps)ÚUnlockedDocumentProxyÚwithout_document_lockcstˆƒ‡fdd„ƒ}d|_|S)až Wrap a callback function to execute without first obtaining the document lock. Args: func (callable) : The function to wrap Returns: callable : a function wrapped to execute without a |Document| lock. While inside an unlocked callback, it is completely *unsafe* to modify ``curdoc()``. The value of ``curdoc()`` inside the callback will be a specially wrapped version of |Document| that only allows safe operations, which are: * :func:`~bokeh.document.Document.add_next_tick_callback` * :func:`~bokeh.document.Document.remove_next_tick_callback` Only these may be used safely without taking the document lock. To make other changes to the document, you must add a next tick callback and make your changes to ``curdoc()`` from that second callback. Attempts to otherwise access or change the Document will result in an exception being raised. cs ˆ||ŽS)N©)ÚargsÚkw)Úfuncr ú5lib/python3.7/site-packages/bokeh/document/locking.pyÚwrapperEsz&without_document_lock..wrapperT)rZnolock)r rr )r rr +sr z¼Only 'add_next_tick_callback' may be used safely without taking the document lock; to make other changes to the document, add a next tick callback and make your changes from that callback.c@s0eZdZdZdd„Zdd„Zdd„Zdd „Zd S) rzÏ Wrap a Document object so that only methods that can safely be used from unlocked callbacks or threads are exposed. Attempts to otherwise access or change the Document results in an exception. cCs ||_dS)z N)Ú_doc)ÚselfÚdocr r rÚ__init__XszUnlockedDocumentProxy.__init__cCs ttƒ‚dS)z N)Ú RuntimeErrorÚUNSAFE_DOC_ATTR_USAGE_MSG)rÚattrr r rÚ __getattr__^sz!UnlockedDocumentProxy.__getattr__cCs |j |¡S)zW Add a "next tick" callback. Args: callback (callable) : )rÚadd_next_tick_callback)rÚcallbackr r rrdsz,UnlockedDocumentProxy.add_next_tick_callbackcCs |j |¡S)zZ Remove a "next tick" callback. Args: callback (callable) : )rÚremove_next_tick_callback)rrr r rrmsz/UnlockedDocumentProxy.remove_next_tick_callbackN)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrrrr r r rrQs  r)rZ __future__rrrrZloggingZ getLoggerrÚlogZ util.futurerÚ__all__r rÚobjectrr r r rÚ s !