B
     S]R"                 @   sx   d dl Z d dlZd dlZddlmZ ddlmZ ddlmZ G dd dejZ	G dd	 d	ej
ZG d
d deejZdS )    N   )	protocols)
transports)loggerc                   s   e Zd Zd0 f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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$d% Zd&d' Zd(d) Zd*d+ Zd,d- Zd.d/ Z  ZS )1BaseSubprocessTransportNc          	      s&  t  |
 d| _|| _|| _d | _d | _d | _g | _t	
 | _i | _d| _|tjkr`d | jd< |tjkrtd | jd< |tjkrd | jd< y"| jf ||||||d| W n   |    Y nX | jj| _| j| jd< | j rt|ttfr|}n|d }td|| j | j| |	 d S )NFr   r      )argsshellstdinstdoutstderrbufsize
subprocesszprocess %r created: pid %s)super__init___closed	_protocol_loop_proc_pid_returncode_exit_waiterscollectionsdeque_pending_calls_pipes	_finishedr   PIPE_startclosepidZ_extra	get_debug
isinstancebytesstrr   debugZcreate_task_connect_pipes)selfloopprotocolr   r	   r
   r   r   r   waiterZextrakwargsZprogram)	__class__ (lib/python3.7/asyncio/base_subprocess.pyr      s@    








z BaseSubprocessTransport.__init__c             C   s  | j jg}| jr|d | jd k	r6|d| j  | jd k	rT|d| j  n | jd k	rj|d n
|d | jd}|d k	r|d|j  | jd}| jd	}|d k	r||kr|d
|j  n6|d k	r|d|j  |d k	r|d|j  d	d
|S )Nclosedzpid=zreturncode=Zrunningznot startedr   zstdin=r   r   zstdout=stderr=zstdout=zstderr=z<{}> )r,   __name__r   appendr   r   r   getpipeformatjoin)r'   infor
   r   r   r-   r-   r.   __repr__7   s,    






z BaseSubprocessTransport.__repr__c             K   s   t d S )N)NotImplementedError)r'   r   r	   r
   r   r   r   r+   r-   r-   r.   r   T   s    zBaseSubprocessTransport._startc             C   s
   || _ d S )N)r   )r'   r)   r-   r-   r.   set_protocolW   s    z$BaseSubprocessTransport.set_protocolc             C   s   | j S )N)r   )r'   r-   r-   r.   get_protocolZ   s    z$BaseSubprocessTransport.get_protocolc             C   s   | j S )N)r   )r'   r-   r-   r.   
is_closing]   s    z"BaseSubprocessTransport.is_closingc             C   s   | j r
d S d| _ x&| j D ]}|d kr*q|j  qW | jd k	r| jd kr| j d kr| j	 rpt
d|  y| j  W n tk
r   Y nX d S )NTz$Close running child process: kill %r)r   r   valuesr4   r   r   r   Zpollr   r!   r   ZwarningkillProcessLookupError)r'   protor-   r-   r.   r   `   s     


zBaseSubprocessTransport.closec             C   s(   | j s$tjd| t| d |   d S )Nzunclosed transport )source)r   warningswarnResourceWarningr   )r'   r-   r-   r.   __del__{   s    zBaseSubprocessTransport.__del__c             C   s   | j S )N)r   )r'   r-   r-   r.   get_pid   s    zBaseSubprocessTransport.get_pidc             C   s   | j S )N)r   )r'   r-   r-   r.   get_returncode   s    z&BaseSubprocessTransport.get_returncodec             C   s   || j kr| j | jS d S d S )N)r   r4   )r'   fdr-   r-   r.   get_pipe_transport   s    
z*BaseSubprocessTransport.get_pipe_transportc             C   s   | j d krt d S )N)r   r?   )r'   r-   r-   r.   _check_proc   s    
z#BaseSubprocessTransport._check_procc             C   s   |    | j| d S )N)rJ   r   send_signal)r'   signalr-   r-   r.   rK      s    z#BaseSubprocessTransport.send_signalc             C   s   |    | j  d S )N)rJ   r   	terminate)r'   r-   r-   r.   rM      s    z!BaseSubprocessTransport.terminatec             C   s   |    | j  d S )N)rJ   r   r>   )r'   r-   r-   r.   r>      s    zBaseSubprocessTransport.killc       	   
      sZ  y j } j}|jd k	rB| fdd|jI d H \}}| jd< |jd k	rv| fdd|jI d H \}}| jd< |jd k	r| fdd|jI d H \}}| jd<  jd k	st	|
 jj  x" jD ]\}}|j
|f|  qW d  _W nB tk
r6 } z"|d k	r&| s&|| W d d }~X Y n X |d k	rV| sV|d  d S )Nc                  s
   t  dS )Nr   )WriteSubprocessPipeProtor-   )r'   r-   r.   <lambda>       z8BaseSubprocessTransport._connect_pipes.<locals>.<lambda>r   c                  s
   t  dS )Nr   )ReadSubprocessPipeProtor-   )r'   r-   r.   rO      rP   r   c                  s
   t  dS )Nr   )rQ   r-   )r'   r-   r.   rO      rP   r   )r   r   r
   Zconnect_write_piper   r   Zconnect_read_piper   r   AssertionError	call_soonr   connection_made	Exception	cancelledZset_exception
set_result)	r'   r*   procr(   _r4   callbackdataexcr-   )r'   r.   r&      s8    









z&BaseSubprocessTransport._connect_pipesc             G   s2   | j d k	r| j ||f n| jj|f|  d S )N)r   r2   r   rS   )r'   cbr[   r-   r-   r.   _call   s    
zBaseSubprocessTransport._callc             C   s   |  | jj|| |   d S )N)r^   r   Zpipe_connection_lost_try_finish)r'   rH   r\   r-   r-   r.   _pipe_connection_lost   s    z-BaseSubprocessTransport._pipe_connection_lostc             C   s   |  | jj|| d S )N)r^   r   Zpipe_data_received)r'   rH   r[   r-   r-   r.   _pipe_data_received   s    z+BaseSubprocessTransport._pipe_data_receivedc             C   s   |d k	st || jd ks$t | j| j r<td| | || _| jjd krV|| j_| | j	j
 |   x | jD ]}| st|| qtW d | _d S )Nz%r exited with return code %r)rR   r   r   r!   r   r7   r   
returncoder^   r   Zprocess_exitedr_   r   rV   rW   )r'   rb   r*   r-   r-   r.   _process_exited   s    
z'BaseSubprocessTransport._process_exitedc                s0   | j dk	r| j S | j }| j| |I dH S )zdWait until the process exit and return the process return code.

        This method is a coroutine.N)r   r   Zcreate_futurer   r2   )r'   r*   r-   r-   r.   _wait   s
    

zBaseSubprocessTransport._waitc             C   sH   | j r
t| jd krd S tdd | j D rDd| _ | | jd  d S )Nc             s   s   | ]}|d k	o|j V  qd S )N)disconnected).0pr-   r-   r.   	<genexpr>   s   z6BaseSubprocessTransport._try_finish.<locals>.<genexpr>T)r   rR   r   allr   r=   r^   _call_connection_lost)r'   r-   r-   r.   r_      s    

z#BaseSubprocessTransport._try_finishc             C   s*   z| j | W d d | _d | _d | _ X d S )N)r   connection_lostr   r   )r'   r\   r-   r-   r.   rj      s
    z-BaseSubprocessTransport._call_connection_lost)NN)r1   
__module____qualname__r   r8   r   r:   r;   r<   r   rE   rF   rG   rI   rJ   rK   rM   r>   r&   r^   r`   ra   rc   rd   r_   rj   __classcell__r-   r-   )r,   r.   r   
   s.   )$	r   c               @   s<   e Zd Zdd Zdd Zdd Zdd Zd	d
 Zdd ZdS )rN   c             C   s   || _ || _d | _d| _d S )NF)rX   rH   r4   re   )r'   rX   rH   r-   r-   r.   r      s    z!WriteSubprocessPipeProto.__init__c             C   s
   || _ d S )N)r4   )r'   Z	transportr-   r-   r.   rT     s    z(WriteSubprocessPipeProto.connection_madec             C   s    d| j j d| j d| jdS )N<z fd=z pipe=>)r,   r1   rH   r4   )r'   r-   r-   r.   r8   	  s    z!WriteSubprocessPipeProto.__repr__c             C   s    d| _ | j| j| d | _d S )NT)re   rX   r`   rH   )r'   r\   r-   r-   r.   rk     s    z(WriteSubprocessPipeProto.connection_lostc             C   s   | j j  d S )N)rX   r   pause_writing)r'   r-   r-   r.   rq     s    z&WriteSubprocessPipeProto.pause_writingc             C   s   | j j  d S )N)rX   r   resume_writing)r'   r-   r-   r.   rr     s    z'WriteSubprocessPipeProto.resume_writingN)	r1   rl   rm   r   rT   r8   rk   rq   rr   r-   r-   r-   r.   rN      s   rN   c               @   s   e Zd Zdd ZdS )rQ   c             C   s   | j | j| d S )N)rX   ra   rH   )r'   r[   r-   r-   r.   data_received  s    z%ReadSubprocessPipeProto.data_receivedN)r1   rl   rm   rs   r-   r-   r-   r.   rQ     s   rQ   )r   r   rB    r   r   logr   ZSubprocessTransportr   ZBaseProtocolrN   ZProtocolrQ   r-   r-   r-   r.   <module>   s    u