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a k�h3 � @ s� d Z ddlZddlmZ ddlmZmZmZ ddlm Z m Z m Z ddl m Z ddlmZmZ ddlmZ eejejejej�G d d � d e e ��Zd gZdS ) z Abstract file handle class � N)� implementer)�error� interfaces�main)�_ConsumerMixin�_dataMustBeBytes� _LogOwner)� iocpsupport)�ERROR_HANDLE_EOF�ERROR_IO_PENDING)�failurec @ sn e Zd ZdZdZdZdZdZdZdZ dZ dZ dd � Z d d � Z d d � Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zd ZdZdZdZdZdZd Z d d � Z d d!� Z d"d#� Z d$d%� Z d&d'� Z!d(d)� Z"d*d+� Z#d,d-� Z$d.d/� Z%d0d1� Z&d2d3� Z'd4d5� Z(dZ)dZ*dZ+d6Z,d7Z-dLd8d9�Z.d:d;� Z/d<d=� Z0e1�2e3j4�fd>d?�Z5d@dA� Z6dBdC� Z7dDdE� Z8dFdG� Z9dHdI� Z:dJdK� Z;dS )M� FileHandlez< File handle that can read and write asynchronously � i FTr Nc C s4 | j �| � | js0| js0d| _| j �d| j�| _d S �NTr )�reactor�addActiveHandle�_readScheduled�reading� callLater�_resumeReading��self� r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/twisted/internet/iocpreactor/abstract.py� startReading( s zFileHandle.startReadingc C s | j r| j �� d | _ d| _d S �NF)r �cancelr r r r r � stopReading. s zFileHandle.stopReadingc C s d | _ | �� r | js | �� d S �N)r � _dispatchData�_readScheduledInOS�doReadr r r r r 4 s zFileHandle._resumeReadingc C s� | j s | jS | j }|| j }| j|k rR| �| j| j � | jd7 _| js dS q || j }|rx| �| j| d|� � | jr�| jt| j� }||| j k r�| jd= n*||kr�t| j�| jk r�| j� t | j�� d| _d| _ | jS )zt Dispatch previously read data. Return True if self.reading and we don't have any more data � Fr ���) � _readSizer �readBufferSize�_readNextBuffer� dataReceived� _readBuffers�dynamicReadBuffers�len�maxReadBuffers�append� bytearray)r �sizeZ full_buffers� remainderZtotal_buffer_sizer r r r 9 s0 ��zFileHandle._dispatchDatac C s d| _ | �|||�r | �� d S r )r � _handleReadr! �r �rc�data�evtr r r �_cbReadY s zFileHandle._cbReadc C s� | j r dS |s|r |tjtfv rB| j�| � | �t�t j �� dS |rr| � t�t � dtj�|d�|f ��� dS | jdks�J �| jdks�J �|| _| �� S dS )zA Returns False if we should stop reading for now Fzread error -- %s (%s)�unknownr N)� disconnected�errnoZ WSAEDISCONr r �removeActiveHandle�readConnectionLostr �Failurer �CONNECTION_DONE�connectionLostr �ConnectionLost� errorcode�getr$ r& r r1 r r r r0 ^ s* ����zFileHandle._handleReadc C sP t �| j| �}| j |_}| �||�\}}|r6|tkr>d| _n| �|||� d S �NT) �_iocp�Eventr5 r( �buff�readFromHandler r r0 )r r4 rD r2 Z numBytesReadr r r r! { s zFileHandle.doReadc C s t � �d S r ��NotImplementedError)r Zbufflistr4 r r r rE � s zFileHandle.readFromHandlec C s t �d S r rF �r r3 r r r r' � s zFileHandle.dataReceivedc C s | � |� d S r �r= �r �reasonr r r r: � s z FileHandle.readConnectionLost� i c C s d| _ | �� d S rA )�_writeDisconnecting� startWritingr r r r �loseWriteConnection� s z FileHandle.loseWriteConnectionc C s d S r r r r r r �_closeWriteConnection� s z FileHandle._closeWriteConnectionc C s | � |� d S r rI rJ r r r �writeConnectionLost� s z FileHandle.writeConnectionLostc C s4 | j �| � | js0| js0d| _| j �d| j�| _d S r )r r �_writeScheduled�writingr �_resumeWritingr r r r rN � s zFileHandle.startWritingc C s | j r| j �� d | _ d| _d S r )rR r rS r r r r � stopWriting� s zFileHandle.stopWritingc C s d | _ | �� d S r )rR �doWriter r r r rT � s zFileHandle._resumeWritingc C s | � |||�r| �� d S r )� _handleWriterV �r r2 ZnumBytesWrittenr4 r r r �_cbWrite� s zFileHandle._cbWritec C s� | j s | jrdS |r@| �t�t�dtj� |d�|f ��� dS | j |7 _ | j t | j �kr�| j s�d| _ d| _ | �� | jdur�| jr�| jr�d| _| j�� n.| jr�| �t�tj�� n| jr�d| _| �� dS dS dS )zA Returns false if we should stop writing for now Fzwrite error -- %s (%s)r6 rL r NT)r7 �_writeDisconnectedr= r r; r r> r8 r? r@ �offsetr* � dataBuffer� _tempDataLenrU �producer�streamingProducer�producerPaused�resumeProducing� disconnectingr r< rM rP rX r r r rW � s@ ���� �� zFileHandle._handleWritec C s� t | j�| j | jk rF| j| jd � d�| j� | _d| _g | _d| _t�| j | �}| jrzt | j�}|| jd � |_ }n | j |_ }| � ||�\}}|r�|t kr�| �|||� d S )NrL r )r* r\ r[ � SEND_LIMIT�join�_tempDataBufferr] rB rC rY � memoryviewrD � writeToHandler rW )r r4 ZsendViewrD r2 r3 r r r rV � s � zFileHandle.doWritec C s t � �d S r rF )r rD r4 r r r rg � s zFileHandle.writeToHandlec C s| t |� | jr| jrdS |rx| j�|� | jt|�7 _| jdurp| jrpt| j �| j | j krpd| _ | j� � | � � dS )zpReliably write some data. The data is buffered until his file descriptor is ready for writing. NT)r � connectedrZ re r, r] r* r^ r_ r\ �writeBufferSizer` �pauseProducingrN rH r r r �write s zFileHandle.writec C s� |D ] }t |� q| jr"|r"| jr&d S | j�|� |D ]}| jt|�7 _q6| jd ur�| jr�t| j �| j | j kr�d| _ | j� � | � � d S rA )r rh rZ re �extendr] r* r^ r_ r\ ri r` rj rN )r Ziovec�ir r r � writeSequence s zFileHandle.writeSequenceZ Uninitializedi c C s4 |sddl m} || _g | _d| _t| j�g| _d S )Nr )r )�twisted.internetr re r] r- r% r( )r r r r r �__init__' s zFileHandle.__init__c C sF d| _ d| _| jdur&| j�� d| _| �� | �� | j�| � dS )a� The connection was lost. This is called when the connection on a selectable object has been lost. It will be called whether the connection was closed explicitly, an exception occurred in an event handler, or the other end of the connection closed it first. Clean up state here, but make sure to call back up to FileDescriptor. TFN)r7 rh r^ � stopProducingr rU r r9 rJ r r r r= / s zFileHandle.connectionLostc C s dS )Nr# r r r r r � getFileHandleD s zFileHandle.getFileHandlec C sF | j rB| jsB| jr,| �� | j | �|� n| �� | �� d| _dS )ad Close the connection at the next available opportunity. Call this to cause this FileDescriptor to lose its connection. It will first write any data that it has buffered. If there is data buffered yet to be written, this method will cause the transport to lose its connection as soon as it's done flushing its write buffer. If you have a producer registered, the connection won't be closed until the producer is finished. Therefore, make sure you unregister your producer when it's finished, or the connection will never close. r" N)rh rb rZ r rU r= rN )r Z _connDoner r r �loseConnectionG s zFileHandle.loseConnectionc C s | � � | �� dS )z� Stop consuming data. This is called when a producer has lost its connection, to tell the consumer to go lose its connection (and break potential circular references). N)ZunregisterProducerrs r r r r � stopConsumingc s zFileHandle.stopConsumingc C s | j r| js| �� d S r )rh rb r r r r r ra p s zFileHandle.resumeProducingc C s | � � d S r )r r r r r rj t s zFileHandle.pauseProducingc C s | � � d S r )rs r r r r rq w s zFileHandle.stopProducingc C s t � �d S r rF r r r r �getHostz s zFileHandle.getHostc C s t � �d S r rF r r r r �getPeer~ s zFileHandle.getPeer)N)<�__name__� __module__� __qualname__�__doc__r+ r% r r) r& r$ r r r r r r r5 r0 r! rE r' r: r\ r[ rS rR rM rZ ri rO rP rQ rN rU rT rY rW rV rg rk rn rh r7 rb Zlogstrrc rp r= rr r r; r r< rs rt ra rj rq ru rv r r r r r sj - r )rz r8 Zzope.interfacer ro r r r Ztwisted.internet.abstractr r r Z twisted.internet.iocpreactorr rB Z"twisted.internet.iocpreactor.constr r Ztwisted.pythonr Z IPushProducerZ IConsumerZ ITransportZIHalfCloseableDescriptorr �__all__r r r r �<module> s" � l
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