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Editing: asyncbackend.cpython-312.pyc
� ���g� � �� � U d dl mZ d dlZd dlmZmZmZmZ da i Z ee ef e d< dZ G d� dej j � Zde d efd �Zd e fd �Zd efd �Zde d efd �Zy)� )�DictN)�Backend�DatagramSocket�Socket� StreamSocket� _backendsFc � � e Zd Zy)�AsyncLibraryNotFoundErrorN)�__name__� __module__� __qualname__� � �?/opt/hc_python/lib/python3.12/site-packages/dns/asyncbackend.pyr r s � �r r �name�returnc � � t j | � }|r|S | dk( r ddl}|j j � }n2| dk( r ddl}|j j � }nt d| � �� �|t | < |S )z�Get the specified asynchronous backend. *name*, a ``str``, the name of the backend. Currently the "trio" and "asyncio" backends are available. Raises NotImplementedError if an unknown backend name is specified. �trior N�asyncioz unimplemented async backend )r �get�dns._trio_backend� _trio_backendr �dns._asyncio_backend�_asyncio_backend�NotImplementedError)r �backend�dnss r � get_backendr sx � � �m�m�D�!�G���� �v�~� ��#�#�+�+�-�� �� �#��&�&�.�.�0��!�$@���"G�H�H� �I�d�O� �Nr c � � t rt �ddl} | j � S # | j $ r t d� �w xY w# t $ r0 ddl} |j � Y y# t $ r t d� �w xY ww xY w)z�Attempt to determine the in-use asynchronous I/O library by using the ``sniffio`` module if it is available. Returns the name of the library, or raises AsyncLibraryNotFoundError if the library cannot be determined. r Nz&sniffio cannot determine async libraryr zno async library detected)� _no_sniffio� ImportError�sniffio�current_async_libraryr r �get_running_loop� RuntimeError)r" r s r �sniffr& 7 s� � �I� � � �� V��0�0�2� 2���0�0� V�+�,T�U� U� V�� � I�� I� � $� $� &� ��� I�+�,G�H� H� I�� I�s* �A �# �>�A � A:�A!�!A6�6A:c �@ � t rt S t t � � S )z6Get the default backend, initializing it if necessary.)�_default_backend�set_default_backendr& r r r �get_default_backendr* R s � �� � � �u�w� '�'r c �$ � t | � at S )a, Set the default backend. It's not normally necessary to call this method, as ``get_default_backend()`` will initialize the backend appropriately in many cases. If ``sniffio`` is not installed, or in testing situations, this function allows the backend to be set explicitly. )r r( )r s r r) r) Z s � � #�4�(�� �r )�typingr � dns.exceptionr �dns._asyncbackendr r r r r( r �str�__annotations__r � exception� DNSExceptionr r r& r* r) r r r �<module>r3 s� �� � �� � � � "� �4��W� � � "� � � �� � � :� :� ��c� �g� �4I�s� I�6(�W� (� �c� �g� r
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