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Generator-based stream reader.
This class doesn't support concurrent calls to :meth:`read_line`,
:meth:`read_exact`, or :meth:`read_to_eof`. Make sure calls are
serialized.
�return�Nonec �: � t � � | _ d| _ d S )NF)� bytearray�buffer�eof��selfs �4/usr/lib/python3/dist-packages/websockets/streams.py�__init__zStreamReader.__init__ s � � �k�k�� ������ �m�int� Generator[None, None, bytes]c # �f K � d}d} | j � d|� � dz }|dk rnOt | j � � }||k rt d|� d|� d�� � �| j rt d|� d �� � �d
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Read a LF-terminated line from the stream.
This is a generator-based coroutine.
The return value includes the LF character.
Args:
m: maximum number bytes to read; this is a security limit.
Raises:
EOFError: if the stream ends without a LF.
RuntimeError: if the stream ends in more than ``m`` bytes.
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� �read � bytes, expected no more than � bytes�stream ends after z bytes, before end of lineN)r �find�len� RuntimeErrorr �EOFError)r r �n�p�rs r � read_linezStreamReader.read_line s� � � � �
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S� � Q�A� Q� Q� Q�R�R�R� �E�E�E� �
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Read a given number of bytes from the stream.
This is a generator-based coroutine.
Args:
n: how many bytes to read.
Raises:
EOFError: if the stream ends in less than ``n`` bytes.
r r z bytes, expected r N)r r r r )r r r! r" s r �
read_exactzStreamReader.read_exact6 s� � � � � �A�v�v�v�v��$�+� � ��"�"��x�
S��� �$�$�� � Q�A� Q� Q�� Q� Q� Q�R�R�R� �E�E�E� �$�+� � ��"�"�
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Read all bytes from the stream.
This is a generator-based coroutine.
Args:
m: maximum number bytes to read; this is a security limit.
Raises:
RuntimeError: if the stream ends in more than ``m`` bytes.
r r r N)r r r r )r r r! r" s r � read_to_eofzStreamReader.read_to_eofM s� � � � � �(� ��D�K� � �A��1�u�u�"�#U�1�#U�#U�A�#U�#U�#U�V�V�V� �E�E�E� �(� �
�K����N�� �K����N��r �Generator[None, None, bool]c # �6 K � | j rdS | j rdS dV � �)zy
Tell whether the stream has ended and all data was read.
This is a generator-based coroutine.
TFN)r r r
s r �at_eofzStreamReader.at_eofc s9 � � � � ��{�
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�E�E�E� r �data�bytesc �R � | j rt d� � �| xj |z
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Write data to the stream.
:meth:`feed_data` cannot be called after :meth:`feed_eof`.
Args:
data: data to write.
Raises:
EOFError: if the stream has ended.
� stream endedN)r r r )r r+ s r � feed_datazStreamReader.feed_datas s0 � � �8� +��>�*�*� *� � � �t�� � � � r c �@ � | j rt d� � �d| _ dS )z�
End the stream.
:meth:`feed_eof` cannot be called more than once.
Raises:
EOFError: if the stream has ended.
r. TN)r r r
s r �feed_eofzStreamReader.feed_eof� s' � � �8� +��>�*�*� *�����r c � � | j dd�= dS )zG
Discard all buffered data, but don't end the stream.
N)r r
s r �discardzStreamReader.discard� s � �
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