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Edit: unix_events.cpython-37.opt-2.pyc
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�callback�args�exc�handleZnexcr r r �add_signal_handlerK s0 z)_UnixSelectorEventLoop.add_signal_handlerc C s8 | j �|�}|d krd S |jr*| �|� n | �|� d S )N)r �getZ _cancelledr$ Z_add_callback_signalsafe)r r) r> r r r r* x s z%_UnixSelectorEventLoop._handle_signalc C s� | � |� y | j|= W n tk r* dS X |tjkr>tj}ntj}yt�||� W nB tk r� } z$|jtj kr�t d|� d���n� W d d }~X Y nX | js�yt� d� W n2 t tfk r� } zt �d|� W d d }~X Y nX dS )NFzsig z cannot be caughtr- z set_wakeup_fd(-1) failed: %sT)r/ r �KeyErrorr0 �SIGINT�default_int_handler�SIG_DFLr4 r9 r: r5 r1 r3 r r8 )r r) Zhandlerr= r r r r$ � s( z,_UnixSelectorEventLoop.remove_signal_handlerc C sL t |t�std|����d| kr.tjk sHn td|� dtj� d���d S )Nzsig must be an int, not r zsig z out of range(1, �))� isinstance�intr. r0 �NSIGr3 )r r) r r r r/ � s z$_UnixSelectorEventLoop._check_signalc C s t | ||||�S )N)�_UnixReadPipeTransport)r �pipe�protocol�waiter�extrar r r �_make_read_pipe_transport� s z0_UnixSelectorEventLoop._make_read_pipe_transportc C s t | 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zB_UnixSelectorEventLoop._sock_add_cancellation_callback.<locals>.cb)Zadd_done_callback)r r� rc r� r )r rc r r� � s z6_UnixSelectorEventLoop._sock_add_cancellation_callback)N)NN)NN)N)N)N)�__name__� __module__� __qualname__r r r, r? r* r$ r/ rN rP r_ rU rq r� r� r� r� r� � __classcell__r r )r r r , s2 - *?Dr c s� e Zd ZdZd � fdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z d dd�Zdd� Zd d � Z� ZS ) rI i Nc s� t � �|� || jd< || _|| _|�� | _|| _d| _d| _ t � | j�j }t �|�s�t �|�s�t �|�s�d | _d | _d | _td��t �| jd� | j�| jj| � | j�| jj| j| j� |d k r�| j�tj|d � d S )NrJ Fz)Pipe transport is for pipes/sockets only.)r r �_extra�_loop�_piper2 �_fileno� _protocol�_closing�_pausedrf r� rz rx �S_ISFIFOry �S_ISCHRr3 � set_blocking� call_soon�connection_made� _add_reader� _read_readyr � _set_result_unless_cancelled)r rv rJ rK rL rM �mode)r r r r � s. z _UnixReadPipeTransport.__init__c C s� | j jg}| jd kr |�d� n| jr0|�d� |�d| j� �� t| jdd �}| jd k r�|d k r�t� || jt j �}|r�|�d� q�|�d� n | jd k r�|�d� n |�d� d� d � |��S ) N�closed�closingzfd=� _selector�polling�idle�openz<{}>� )r r� r� �appendr� r� �getattrr� r �_test_selector_event� selectorsZ EVENT_READ�format�join)r r8 r r� r r r �__repr__� s" z _UnixReadPipeTransport.__repr__c C s� yt �| j| j�}W nD ttfk r, Y n� tk rX } z| �|d� W d d }~X Y n^X |rl| j� |� nJ| j � � r�t � d| � d| _| j �| j� | j �| jj� | j �| jd � d S )Nz"Fatal read error on pipe transportz%r was closed by peerT)rf �readr� �max_sizer� r� r4 � _fatal_errorr� Z data_receivedr� � get_debugr r8 r� �_remove_readerr� Z eof_received�_call_connection_lost)r r+ r= r r r r� � s z"_UnixReadPipeTransport._read_readyc C s> | j s | jrd S d| _| j�| j� | j�� r:t�d| � d S )NTz%r pauses reading)r� r� r� r� r� r� r �debug)r r r r � pause_reading� s z$_UnixReadPipeTransport.pause_readingc C sB | j s | jsd S d| _| j�| j| j� | j�� r>t�d| � d S )NFz%r resumes reading) r� r� r� r� r� r� r� r r� )r r r r �resume_reading� s z%_UnixReadPipeTransport.resume_readingc C s || _ d S )N)r� )r rK r r r � set_protocol� s z#_UnixReadPipeTransport.set_protocolc C s | j S )N)r� )r r r r � get_protocol s z#_UnixReadPipeTransport.get_protocolc C s | j S )N)r� )r r r r � is_closing s z!_UnixReadPipeTransport.is_closingc C s | j s| �d � d S )N)r� �_close)r r r r r s z _UnixReadPipeTransport.closec C s. | j d k r*tjd| ��t| d� | j �� d S )Nzunclosed transport )r )r� r% r& r' r )r r r r �__del__ s z _UnixReadPipeTransport.__del__� Fatal error on pipe transportc C sZ t |t�r4|jtjkr4| j�� rLtjd| |dd� n| j�||| | j d�� | � |� d S )Nz%r: %sT)�exc_info)�message� exceptionrp rK ) rF r4 r9 ZEIOr� r� r r� �call_exception_handlerr� r� )r r= r� r r r r� s z#_UnixReadPipeTransport._fatal_errorc C s( d| _ | j�| j� | j�| j|� d S )NT)r� r� r� r� r� r� )r r= r r r r� s z _UnixReadPipeTransport._closec C s4 z| j �|� W d | j�� d | _d | _ d | _X d S )N)r� �connection_lostr� r r� )r r= r r r r� % s z,_UnixReadPipeTransport._call_connection_lost)NN)r� )r� r� r� r� r r� r� r� r� r� r� r� r r� r� r� r� r� r r )r r rI � s rI c s� e Zd Zd%� fdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd d � Zd&d d �Zd'd!d"�Zd#d$� Z� ZS )(rO Nc s� t � �||� || jd< || _|�� | _|| _t� | _d| _ d| _ t � | j�j }t�|�}t�|�}t�|�} |s�|s�| s�d | _d | _d | _td��t �| jd� | j�| jj| � | s�|r�tj�d�s�| j�| jj| j| j� |d k r�| j�t j |d � d S )NrJ r Fz?Pipe transport is only for pipes, sockets and character devicesZaix) r r r� r� r2 r� r� � bytearray�_buffer� _conn_lostr� rf r� rz rx r� r� ry r3 r� r� r� r� r! �platform� startswithr� r� r r� ) r rv rJ rK rL rM r� Zis_charZis_fifoZ is_socket)r r r r 2 s2 z _UnixWritePipeTransport.__init__c C s� | j jg}| jd kr |�d� n| jr0|�d� |�d| j� �� t| jdd �}| jd k r�|d k r�t� || jt j �}|r�|�d� n |�d� | � � }|�d|� �� n | jd k r�|�d� n |�d� d � d �|��S ) Nr� r� zfd=r� r� r� zbufsize=r� z<{}>r� )r r� r� r� r� r� r� r� r r� r� Z EVENT_WRITE�get_write_buffer_sizer� r� )r r8 r r� r[ r r r r� W s& z _UnixWritePipeTransport.__repr__c C s t | j�S )N)�lenr� )r r r r r� o s z-_UnixWritePipeTransport.get_write_buffer_sizec C s6 | j �� rt�d| � | jr*| �t� � n| �� d S )Nz%r was closed by peer)r� r� r r8 r� r� �BrokenPipeError)r r r r r� r s z#_UnixWritePipeTransport._read_readyc C s t |t�rt|�}|sd S | js&| jrN| jtjkr<t�d� | jd7 _d S | j s�yt � | j |�}W nV t tfk r� d}Y n< tk r� } z | jd7 _| �|d� d S d }~X Y nX |t|�kr�d S |dkr�t|�|d � }| j�| j | j� | j |7 _ | �� d S )Nz=pipe closed by peer or os.write(pipe, data) raised exception.r r z#Fatal write error on pipe transport)rF r� � memoryviewr� r� r Z!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� rf �writer� r� r� rV r� r� r� Z _add_writer� _write_readyZ_maybe_pause_protocol)r r+ �nr= r r r r� { s2 z _UnixWritePipeTransport.writec C s� yt �| j| j�}W nj ttfk r, Y n� tk r~ } z6| j�� | jd7 _| j � | j� | � |d� W d d }~X Y nfX |t | j�kr�| j�� | j � | j� | � � | jr�| j �| j� | �d � d S |dkr�| jd |�= d S )Nr z#Fatal write error on pipe transportr )rf r� r� r� r� r� rV r( r� r� �_remove_writerr� r� Z_maybe_resume_protocolr� r� r� )r r� r= r r r r� � s& z$_UnixWritePipeTransport._write_readyc C s dS )NTr )r r r r � can_write_eof� s z%_UnixWritePipeTransport.can_write_eofc C s8 | j r d S d| _ | js4| j�| j� | j�| jd � d S )NT)r� r� r� r� r� r� r� )r r r r � write_eof� s z!_UnixWritePipeTransport.write_eofc C s || _ d S )N)r� )r rK r r r r� � s z$_UnixWritePipeTransport.set_protocolc C s | j S )N)r� )r r r r r� � s z$_UnixWritePipeTransport.get_protocolc C s | j S )N)r� )r r r r r� � s z"_UnixWritePipeTransport.is_closingc C s | j d k r| js| �� d S )N)r� r� r� )r r r r r � s z _UnixWritePipeTransport.closec C s. | j d k r*tjd| ��t| d� | j �� d S )Nzunclosed transport )r )r� r% r& r' r )r r r r r� � s z _UnixWritePipeTransport.__del__c C s | � d � d S )N)r� )r r r r �abort� s z _UnixWritePipeTransport.abort� Fatal error on pipe transportc C sN t |t�r(| j�� r@tjd| |dd� n| j�||| | jd�� | �|� d S )Nz%r: %sT)r� )r� r� rp rK ) rF r4 r� r� r r� r� r� r� )r r= r� r r r r� � s z$_UnixWritePipeTransport._fatal_errorc C sF d| _ | jr| j�| j� | j�� | j�| j� | j�| j|� d S )NT) r� r� r� r� r� r( r� r� r� )r r= r r r r� � s z _UnixWritePipeTransport._closec C s4 z| j �|� W d | j�� d | _d | _ d | _X d S )N)r� r� r� r r� )r r= r r r r� � s z-_UnixWritePipeTransport._call_connection_lost)NN)r� )N)r� r� r� r r� r� r� r� r� r� r� r� r� r� r r� r� r� r� r� r� r r )r r rO / s" % ! rO c @ s e Zd Zdd� ZdS )rS c K s� d }|t jkrt�� \}}zPt j|f||||d|d�|��| _|d k rh|�� t|�� d|d�| j_ d }W d |d k r�|�� |�� X d S )NF)rW rX rY rZ Zuniversal_newlinesr[ �wb)� buffering) � subprocess�PIPErh Z socketpair�Popen�_procr r� �detachrX ) r r< rW rX rY rZ r[ r\ Zstdin_wr r r �_start� s z _UnixSubprocessTransport._startN)r� r� r� r� r r r r rS � s rS c @ s< e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd S )r c G s t � �d S )N)�NotImplementedError)r r` r; r< r r r rT ) s z&AbstractChildWatcher.add_child_handlerc C s t � �d S )N)r� )r r` r r r �remove_child_handler4 s z)AbstractChildWatcher.remove_child_handlerc C s t � �d S )N)r� )r rv r r r � attach_loop< s z AbstractChildWatcher.attach_loopc C s t � �d S )N)r� )r r r r r F s zAbstractChildWatcher.closec C s t � �d S )N)r� )r r r r � __enter__M s z AbstractChildWatcher.__enter__c C s t � �d S )N)r� )r �a�b�cr r r �__exit__S s z AbstractChildWatcher.__exit__N) r� r� r� rT r� r� r r� r� r r r r r s r c @ sD e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dS )�BaseChildWatcherc C s d | _ i | _d S )N)r� � _callbacks)r r r r r Z s zBaseChildWatcher.__init__c C s | � d � d S )N)r� )r r r r r ^ s zBaseChildWatcher.closec C s t � �d S )N)r� )r � expected_pidr r r � _do_waitpida s z BaseChildWatcher._do_waitpidc C s t � �d S )N)r� )r r r r �_do_waitpid_alld s z BaseChildWatcher._do_waitpid_allc C sf | j d k r$|d kr$| jr$t�dt� | j d k r<| j �tj� || _ |d k rb|�tj| j � | � � d S )NzCA loop is being detached from a child watcher with pending handlers) r� r� r% r& �RuntimeWarningr$ r0 �SIGCHLDr? � _sig_chldr� )r rv r r r r� g s z BaseChildWatcher.attach_loopc C sF y | � � W n4 tk r@ } z| j�d|d�� W d d }~X Y nX d S )Nz$Unknown exception in SIGCHLD handler)r� r� )r� rV r� r� )r r= r r r r� { s zBaseChildWatcher._sig_chldc C s2 t �|�rt �|� S t �|�r*t �|�S |S d S )N)rf � WIFSIGNALED�WTERMSIG� WIFEXITED� WEXITSTATUS)r �statusr r r �_compute_returncode� s z$BaseChildWatcher._compute_returncodeN) r� r� r� r r r� r� r� r� r r r r r r� X s r� c sL e Zd Z� fdd�Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z � Z S )r c s | j �� t� �� d S )N)r� r( r r )r )r r r r � s zSafeChildWatcher.closec C s | S )Nr )r r r r r� � s zSafeChildWatcher.__enter__c C s d S )Nr )r r� r� r� r r r r� � s zSafeChildWatcher.__exit__c G s. | j d krtd��||f| j|< | �|� d S )NzICannot add child handler, the child watcher does not have a loop attached)r� r5 r� r� )r r` r; r< r r r rT � s z"SafeChildWatcher.add_child_handlerc C s& y | j |= dS tk r dS X d S )NTF)r� rA )r r` r r r r� � s z%SafeChildWatcher.remove_child_handlerc C s" x t | j�D ]}| �|� q W d S )N)r# r� r� )r r` r r r r� � s z SafeChildWatcher._do_waitpid_allc C s� yt �|t j�\}}W n( tk r> |}d}t�d|� Y n0X |dkrLd S | �|�}| j�� rnt� d||� y| j � |�\}}W n. t k r� | j�� r�tjd|dd� Y nX |||f|�� d S )N� z8Unknown child process pid %d, will report returncode 255r z$process %s exited with returncode %sz'Child watcher got an unexpected pid: %rT)r� ) rf �waitpid�WNOHANG�ChildProcessErrorr r� r r� r� r� r� �poprA )r r� r` r ra r; r< r r r r� � s* z SafeChildWatcher._do_waitpid) r� r� r� r r� r� rT r� r� r� r� r r )r r r � s r c sP e Zd Z� fdd�Z� fdd�Zdd� Zdd� Zd d � Zd d � Zd d� Z � Z S )r c s$ t � �� t�� | _i | _d| _d S )Nr )r r � threadingZLock�_lock�_zombies�_forks)r )r r r r � s zFastChildWatcher.__init__c s" | j �� | j�� t� �� d S )N)r� r( r r r )r )r r r r � s zFastChildWatcher.closec C s$ | j � | jd7 _| S Q R X d S )Nr )r r )r r r r r� � s zFastChildWatcher.__enter__c C sT | j �8 | jd8 _| js"| js&d S t| j�}| j�� W d Q R X t�d|� d S )Nr z5Caught subprocesses termination from unknown pids: %s)r r r r6 r( r r� )r r� r� r� Zcollateral_victimsr r r r� � s zFastChildWatcher.__exit__c G sl | j d krtd��| j�: y| j�|�}W n" tk rL ||f| j|< d S X W d Q R X |||f|�� d S )NzICannot add child handler, the child watcher does not have a loop attached)r� r5 r r r rA r� )r r` r; r< ra r r r rT s z"FastChildWatcher.add_child_handlerc C s& y | j |= dS tk r dS X d S )NTF)r� rA )r r` r r r r� s z%FastChildWatcher.remove_child_handlerc C s� x�yt �dt j�\}}W n tk r, d S X |dkr:d S | �|�}| j�v y| j�|�\}}W nB tk r� | j r�|| j |< | j � � r�t �d||� wd }Y nX | j � � r�t �d||� W d Q R X |d kr�t �d||� q|||f|�� qW d S )Nr- r z,unknown process %s exited with returncode %sz$process %s exited with returncode %sz8Caught subprocess termination from unknown pid: %d -> %d)rf r r r r r r� r rA r r r� r� r r� r� )r r` r ra r; r< r r r r� ' s6 z FastChildWatcher._do_waitpid_all) r� r� r� r r r� r� rT r� r� r� r r )r r r � s r c sD e Zd ZeZ� fdd�Zdd� Z� fdd�Zdd� Zd d � Z � Z S ) �_UnixDefaultEventLoopPolicyc s t � �� d | _d S )N)r r �_watcher)r )r r r r V s z$_UnixDefaultEventLoopPolicy.__init__c C sH t j�8 | jd kr:t� | _tt�� tj�r:| j�| j j � W d Q R X d S )N) r r r r rF r �current_thread� _MainThreadr� �_localr� )r r r r � _init_watcherZ s z)_UnixDefaultEventLoopPolicy._init_watcherc s6 t � �|� | jd k r2tt�� tj�r2| j�|� d S )N)r �set_event_loopr rF r r r r� )r rv )r r r r b s z*_UnixDefaultEventLoopPolicy.set_event_loopc C s | j d kr| �� | j S )N)r r )r r r r rQ p s z-_UnixDefaultEventLoopPolicy.get_child_watcherc C s | j d k r| j �� || _ d S )N)r r )r r] r r r �set_child_watcherz s z-_UnixDefaultEventLoopPolicy.set_child_watcher) r� r� r� r Z _loop_factoryr r r rQ r r� r r )r r r R s r ),r9 r� rf r� r0 rh rx r� r! r r% � r r r r r r r r r �logr �__all__r� � ImportErrorr ZBaseSelectorEventLoopr Z ReadTransportrI Z_FlowControlMixinZWriteTransportrO ZBaseSubprocessTransportrS r r� r r ZBaseDefaultEventLoopPolicyr r r r r r r �<module> sP | JF=On3
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