a
    ze                     @   s  d Z ddlZejdkredddlZddlZddlZddlZddlZddl	Z	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 dd	lmZ dd
lmZ ddlmZ ddlmZ ddlmZ ddlmZ dZdZdZdZdZdZdZG dd dejZ G dd dejZ!G dd de!Z"G dd de!Z#G dd de$Z%G dd  d ej&Z'G d!d" d"ej(Z)G d#d$ d$Z*G d%d& d&ej+Z,e'Z-G d'd( d(ej.Z/G d)d* d*ej.Z0e0Z1dS )+z.Selector and proactor event loops for Windows.    Nwin32z
win32 only   )events)base_subprocess)futures)
exceptions)proactor_events)selector_events)tasks)windows_utils)logger)SelectorEventLoopProactorEventLoopIocpProactorDefaultEventLoopPolicyWindowsSelectorEventLoopPolicyWindowsProactorEventLoopPolicy    i  i  gMbP?g?c                       s`   e Zd ZdZdd fdd
Z fddZdd	 Zd fd
d	Z fddZ fddZ	  Z
S )_OverlappedFuturezSubclass of Future which represents an overlapped operation.

    Cancelling it will immediately cancel the overlapped operation.
    Nloopc                   s&   t  j|d | jr| jd= || _d S Nr   )super__init___source_traceback_ov)selfovr   	__class__ ,/usr/lib/python3.9/asyncio/windows_events.pyr   6   s    z_OverlappedFuture.__init__c                    sH   t   }| jd urD| jjr dnd}|dd| d| jjdd |S )NpendingZ	completedr   zoverlapped=<z, #x>)r   
_repr_infor   r#   insertaddressr   infostater   r!   r"   r&   <   s
    

 z_OverlappedFuture._repr_infoc              
   C   st   | j d u rd S z| j   W nL tyh } z4d|| d}| jrH| j|d< | j| W Y d }~n
d }~0 0 d | _ d S )Nz&Cancelling an overlapped future failedmessage	exceptionfuturesource_traceback)r   cancelOSErrorr   _loopcall_exception_handler)r   exccontextr!   r!   r"   _cancel_overlappedC   s    

"z$_OverlappedFuture._cancel_overlappedc                    s   |    t j|dS N)msg)r7   r   r1   r   r9   r   r!   r"   r1   S   s    z_OverlappedFuture.cancelc                    s   t  | |   d S N)r   set_exceptionr7   r   r.   r   r!   r"   r<   W   s    z_OverlappedFuture.set_exceptionc                    s   t  | d | _d S r;   )r   
set_resultr   r   resultr   r!   r"   r>   [   s    z_OverlappedFuture.set_result)N)__name__
__module____qualname____doc__r   r&   r7   r1   r<   r>   __classcell__r!   r!   r   r"   r   0   s   r   c                       sp   e Zd ZdZdd fdd
Zdd Z fdd	Zd
d Zdd Zd fdd	Z	 fddZ
 fddZ  ZS )_BaseWaitHandleFuturez2Subclass of Future which represents a wait handle.Nr   c                   s8   t  j|d | jr| jd= || _|| _|| _d| _d S )Nr   r   T)r   r   r   r   _handle_wait_handle_registered)r   r   handlewait_handler   r   r!   r"   r   c   s    z_BaseWaitHandleFuture.__init__c                 C   s   t | jdt jkS Nr   )_winapiZWaitForSingleObjectrG   ZWAIT_OBJECT_0r   r!   r!   r"   _pollq   s    z_BaseWaitHandleFuture._pollc                    sd   t   }|d| jd | jd urB|  r4dnd}|| | jd ur`|d| jd |S )Nzhandle=r$   signaledZwaitingzwait_handle=)r   r&   appendrG   rO   rH   r)   r   r!   r"   r&   v   s    



z _BaseWaitHandleFuture._repr_infoc                 C   s
   d | _ d S r;   )r   r   futr!   r!   r"   _unregister_wait_cb   s    z)_BaseWaitHandleFuture._unregister_wait_cbc              
   C   s   | j s
d S d| _ | j}d | _zt| W nf ty } zN|jtjkr|d|| d}| jrb| j|d< | j	| W Y d }~d S W Y d }~n
d }~0 0 | 
d  d S NFz$Failed to unregister the wait handler,   r0   )rI   rH   _overlappedZUnregisterWaitr2   winerrorERROR_IO_PENDINGr   r3   r4   rT   r   rK   r5   r6   r!   r!   r"   _unregister_wait   s$    
$z&_BaseWaitHandleFuture._unregister_waitc                    s   |    t j|dS r8   )rZ   r   r1   r:   r   r!   r"   r1      s    z_BaseWaitHandleFuture.cancelc                    s   |    t | d S r;   )rZ   r   r<   r=   r   r!   r"   r<      s    z#_BaseWaitHandleFuture.set_exceptionc                    s   |    t | d S r;   )rZ   r   r>   r?   r   r!   r"   r>      s    z _BaseWaitHandleFuture.set_result)N)rA   rB   rC   rD   r   rO   r&   rT   rZ   r1   r<   r>   rE   r!   r!   r   r"   rF   `   s   
rF   c                       sF   e Zd ZdZdd fdd
Zdd Z fdd	Z fd
dZ  ZS )_WaitCancelFuturezoSubclass of Future which represents a wait for the cancellation of a
    _WaitHandleFuture using an event.
    Nr   c                   s   t  j||||d d | _d S )Nr   )r   r   _done_callback)r   r   eventrK   r   r   r!   r"   r      s    z_WaitCancelFuture.__init__c                 C   s   t dd S )Nz'_WaitCancelFuture must not be cancelled)RuntimeErrorrN   r!   r!   r"   r1      s    z_WaitCancelFuture.cancelc                    s$   t  | | jd ur | |  d S r;   )r   r>   r\   r?   r   r!   r"   r>      s    
z_WaitCancelFuture.set_resultc                    s$   t  | | jd ur | |  d S r;   )r   r<   r\   r=   r   r!   r"   r<      s    
z_WaitCancelFuture.set_exception)	rA   rB   rC   rD   r   r1   r>   r<   rE   r!   r!   r   r"   r[      s
   r[   c                       s6   e Zd Zdd fdd
Z fddZdd Z  ZS )	_WaitHandleFutureNr   c                   s<   t  j||||d || _d| _td ddd | _d | _d S )Nr   TF)r   r   	_proactorZ_unregister_proactorrV   ZCreateEvent_event
_event_fut)r   r   rJ   rK   proactorr   r   r!   r"   r      s
    z_WaitHandleFuture.__init__c                    sF   | j d ur"t| j  d | _ d | _| j| j d | _t | d S r;   )	ra   rM   CloseHandlerb   r`   _unregisterr   r   rT   rR   r   r!   r"   rT      s    
	z%_WaitHandleFuture._unregister_wait_cbc              
   C   s   | j s
d S d| _ | j}d | _zt|| j W nf ty } zN|jtjkrd|| d}| jrf| j|d< | j	
| W Y d }~d S W Y d }~n
d }~0 0 | j| j| j| _d S rU   )rI   rH   rV   ZUnregisterWaitExra   r2   rW   rX   r   r3   r4   r`   _wait_cancelrT   rb   rY   r!   r!   r"   rZ      s(    
$
z"_WaitHandleFuture._unregister_wait)rA   rB   rC   r   rT   rZ   rE   r!   r!   r   r"   r_      s   r_   c                   @   s<   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d ZeZ	dS )
PipeServerzXClass representing a pipe server.

    This is much like a bound, listening socket.
    c                 C   s,   || _ t | _d | _d | _| d| _d S NT)_addressweakrefWeakSet_free_instances_pipe_accept_pipe_future_server_pipe_handle)r   r(   r!   r!   r"   r      s
    
zPipeServer.__init__c                 C   s   | j | d }| _ |S )NF)rm   ro   )r   tmpr!   r!   r"   _get_unconnected_pipe  s    z PipeServer._get_unconnected_pipec              
   C   sr   |   rd S tjtjB }|r&|tjO }t| j|tjtjB tj	B tj
tjtjtjtj}t|}| j| |S r;   )closedrM   ZPIPE_ACCESS_DUPLEXZFILE_FLAG_OVERLAPPEDZFILE_FLAG_FIRST_PIPE_INSTANCEZCreateNamedPiperi   ZPIPE_TYPE_MESSAGEZPIPE_READMODE_MESSAGEZ	PIPE_WAITZPIPE_UNLIMITED_INSTANCESr   BUFSIZEZNMPWAIT_WAIT_FOREVERNULL
PipeHandlerl   add)r   firstflagshpiper!   r!   r"   ro     s"    


zPipeServer._server_pipe_handlec                 C   s
   | j d u S r;   )ri   rN   r!   r!   r"   rr     s    zPipeServer.closedc                 C   sR   | j d ur| j   d | _ | jd urN| jD ]}|  q*d | _d | _| j  d S r;   )rn   r1   ri   rl   closerm   clear)r   rz   r!   r!   r"   r{   "  s    




zPipeServer.closeN)
rA   rB   rC   rD   r   rq   ro   rr   r{   __del__r!   r!   r!   r"   rg      s   
rg   c                   @   s   e Zd ZdZdS )_WindowsSelectorEventLoopz'Windows version of selector event loop.N)rA   rB   rC   rD   r!   r!   r!   r"   r~   1  s   r~   c                       sH   e Zd ZdZd fdd	Z fddZdd Zd	d
 ZdddZ  Z	S )r   z2Windows version of proactor event loop using IOCP.Nc                    s   |d u rt  }t | d S r;   )r   r   r   )r   rc   r   r!   r"   r   8  s    zProactorEventLoop.__init__c              	      s   z^| j d u sJ | | j t   W | j d ur| j j}| j   |d urX| j| d | _ n8| j d ur| j j}| j   |d ur| j| d | _ 0 d S r;   )	Z_self_reading_future	call_soonZ_loop_self_readingr   run_foreverr   r1   r`   re   r   r   r   r!   r"   r   =  s     



zProactorEventLoop.run_foreverc                    s8   | j |}|I d H }| }| j||d|id}||fS )Naddrextra)r`   connect_pipe_make_duplex_pipe_transport)r   protocol_factoryr(   frz   protocoltransr!   r!   r"   create_pipe_connectionP  s    
z(ProactorEventLoop.create_pipe_connectionc                    s.   t  d fdd	 gS )Nc              
      s  d }zn| rN|   }j|  r4|  W d S  }j||d id  }|d u rdW d S j|} W n t	y } zN|r|
 dkrd||d |  njrtjd|dd W Y d }~n8d }~0  tjy   |r|  Y n0 | _|  d S )	Nr   r   r   zPipe accept failed)r-   r.   rz   zAccept pipe failed on pipe %rT)exc_info)r@   rl   discardrr   r{   r   rq   r`   accept_piper2   filenor4   Z_debugr   warningr   CancelledErrorrn   add_done_callback)r   rz   r   r5   r(   loop_accept_piper   r   Zserverr!   r"   r   [  sB    

z>ProactorEventLoop.start_serving_pipe.<locals>.loop_accept_pipe)N)rg   r   )r   r   r(   r!   r   r"   start_serving_pipeX  s    (
z$ProactorEventLoop.start_serving_pipec	              	      s   |   }
t| |||||||f|
|d|	}z|
I d H  W n@ ttfyR    Y n* tyz   |  | I d H   Y n0 |S )N)waiterr   )create_future_WindowsSubprocessTransport
SystemExitKeyboardInterruptBaseExceptionr{   _wait)r   r   argsshellstdinstdoutstderrbufsizer   kwargsr   Ztranspr!   r!   r"   _make_subprocess_transport  s"    
z,ProactorEventLoop._make_subprocess_transport)N)N)
rA   rB   rC   rD   r   r   r   r   r   rE   r!   r!   r   r"   r   5  s   0 r   c                   @   s   e Zd ZdZd;ddZdd Zdd Zd	d
 Zd<ddZdd Z	d=ddZ
d>ddZd?ddZd@ddZdAddZdd Zdd Zdd  Zd!d" Zd#d$ ZdBd%d&Zd'd( Zd)d* Zd+d, Zd-d. Zd/d0 Zd1d2 ZdCd3d4Zd5d6 Zd7d8 Zd9d: ZdS )Dr   z#Proactor implementation using IOCP.r   c                 C   sD   d | _ g | _ttjtd|| _i | _t	 | _
g | _t	 | _d S rL   )r3   _resultsrV   CreateIoCompletionPortINVALID_HANDLE_VALUErt   _iocp_cacherj   rk   rI   _unregistered_stopped_serving)r   Zconcurrencyr!   r!   r"   r     s    

zIocpProactor.__init__c                 C   s   | j d u rtdd S )NzIocpProactor is closed)r   r^   rN   r!   r!   r"   _check_closed  s    
zIocpProactor._check_closedc                 C   sF   dt | j dt | j g}| jd u r0|d d| jjd|f S )Nzoverlapped#=%sz
result#=%srr   z<%s %s> )lenr   r   r   rQ   r    rA   join)r   r*   r!   r!   r"   __repr__  s    

zIocpProactor.__repr__c                 C   s
   || _ d S r;   )r3   )r   r   r!   r!   r"   set_loop  s    zIocpProactor.set_loopNc                 C   s    | j s| | | j }g | _ |S r;   )r   rO   )r   timeoutrp   r!   r!   r"   select  s
    
zIocpProactor.selectc                 C   s   | j  }|| |S r;   )r3   r   r>   )r   valuerS   r!   r!   r"   _result  s    

zIocpProactor._resultr   c                 C   s|   |  | tt}z4t|tjr6|| || n|| | W n t	yd   | 
d Y S 0 dd }| |||S )N    c              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   	getresultr2   rW   rV   ZERROR_NETNAME_DELETEDZERROR_OPERATION_ABORTEDConnectionResetErrorr   r   keyr   r5   r!   r!   r"   finish_recv  s    
z&IocpProactor.recv.<locals>.finish_recv)_register_with_iocprV   
Overlappedrt   
isinstancesocketZWSARecvr   ZReadFileBrokenPipeErrorr   	_registerr   connnbytesrx   r   r   r!   r!   r"   recv  s    


zIocpProactor.recvc                 C   s|   |  | tt}z4t|tjr6|| || n|| | W n t	yd   | 
d Y S 0 dd }| |||S )Nr   c              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   r   r   r!   r!   r"   r     s    
z+IocpProactor.recv_into.<locals>.finish_recv)r   rV   r   rt   r   r   ZWSARecvIntor   ZReadFileIntor   r   r   )r   r   bufrx   r   r   r!   r!   r"   	recv_into  s    


zIocpProactor.recv_intoc                 C   s^   |  | tt}z|| || W n tyF   | d Y S 0 dd }| |||S )N)r   Nc              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   r   r   r!   r!   r"   r     s    
z*IocpProactor.recvfrom.<locals>.finish_recv)	r   rV   r   rt   ZWSARecvFromr   r   r   r   r   r!   r!   r"   recvfrom  s    


zIocpProactor.recvfromc                 C   s>   |  | tt}|| ||| dd }| |||S )Nc              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   r   r   r!   r!   r"   finish_send	  s    
z(IocpProactor.sendto.<locals>.finish_send)r   rV   r   rt   Z	WSASendTor   r   )r   r   r   rx   r   r   r   r!   r!   r"   sendto  s
    


zIocpProactor.sendtoc                 C   sZ   |  | tt}t|tjr4|| || n|| | dd }| 	|||S )Nc              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   r   r   r!   r!   r"   r     s    
z&IocpProactor.send.<locals>.finish_send)
r   rV   r   rt   r   r   ZWSASendr   Z	WriteFiler   )r   r   r   rx   r   r   r!   r!   r"   send  s    


zIocpProactor.sendc                    sv   |   | j tt}|     fdd}dd }| ||}|| }t	j
|| jd |S )Nc                    sD   |   td } tjtj|  	
     fS )Nz@P)r   structpackr   
setsockoptr   
SOL_SOCKETrV   ZSO_UPDATE_ACCEPT_CONTEXT
settimeout
gettimeoutgetpeername)r   r   r   r   r   listenerr!   r"   finish_accept/  s    z*IocpProactor.accept.<locals>.finish_acceptc                    s2   z| I d H  W n t jy,   |   Y n0 d S r;   )r   r   r{   )r/   r   r!   r!   r"   accept_coro8  s
    z(IocpProactor.accept.<locals>.accept_coror   )r   _get_accept_socketfamilyrV   r   rt   ZAcceptExr   r   r
   Zensure_futurer3   )r   r   r   r   r   r/   coror!   r   r"   accept)  s    

	
zIocpProactor.acceptc              
      s    j tjkr4t  | | j }|d  |S | 	  zt
   j W nD ty } z,|jtjkrr   d dkr W Y d }~n
d }~0 0 tt}|  |  fdd}| | |S )Nr   r   c                    s   |    tjtjd  S rL   )r   r   r   r   rV   ZSO_UPDATE_CONNECT_CONTEXTr   r   r   r   r!   r"   finish_connect[  s
    z,IocpProactor.connect.<locals>.finish_connect)typer   
SOCK_DGRAMrV   Z
WSAConnectr   r3   r   r>   r   Z	BindLocalr   r2   rW   errnoZ	WSAEINVALgetsocknamer   rt   Z	ConnectExr   )r   r   r(   rS   er   r   r!   r   r"   connectE  s"    



zIocpProactor.connectc           	   	   C   sb   |  | tt}|d@ }|d? d@ }|| t| |||dd dd }| |||S )Nr       r   c              
   S   sT   z
|  W S  tyN } z,|jtjtjfv r8t|j n W Y d }~n
d }~0 0 d S r;   r   r   r!   r!   r"   finish_sendfilen  s    
z.IocpProactor.sendfile.<locals>.finish_sendfile)	r   rV   r   rt   ZTransmitFiler   msvcrtZget_osfhandler   )	r   sockfileoffsetcountr   Z
offset_lowZoffset_highr   r!   r!   r"   sendfiled  s    


	zIocpProactor.sendfilec                    sJ   |    tt}|  }|r0|  S  fdd}| | |S )Nc                    s   |    S r;   )r   r   rz   r!   r"   finish_accept_pipe  s    z4IocpProactor.accept_pipe.<locals>.finish_accept_pipe)r   rV   r   rt   ZConnectNamedPiper   r   r   )r   rz   r   Z	connectedr   r!   r   r"   r   y  s    


zIocpProactor.accept_pipec              
      st   t }zt|}W qjW n2 tyH } z|jtjkr4 W Y d }~n
d }~0 0 t|d t}t	|I d H  qt
|S )N   )CONNECT_PIPE_INIT_DELAYrV   ZConnectPiper2   rW   ZERROR_PIPE_BUSYminCONNECT_PIPE_MAX_DELAYr
   sleepr   ru   )r   r(   delayrJ   r5   r!   r!   r"   r     s    
zIocpProactor.connect_pipec                 C   s   |  ||dS )zWait for a handle.

        Return a Future object. The result of the future is True if the wait
        completed, or False if the wait did not complete (on timeout).
        F)_wait_for_handle)r   rJ   r   r!   r!   r"   wait_for_handle  s    zIocpProactor.wait_for_handlec                 C   s   |  |d d}||_|S rh   )r   r\   )r   r]   Zdone_callbackrS   r!   r!   r"   rf     s    zIocpProactor._wait_cancelc                    s   |    |d u rtj}nt|d }tt}t|| j	|j
|}|r\t|||| jd nt|||| | jd  jr~ jd=  fdd} |d|f| j|j
<  S )N     @@r   r   c                    s      S r;   )rO   r   r   r!   r"   finish_wait_for_handle  s    z=IocpProactor._wait_for_handle.<locals>.finish_wait_for_handler   )r   rM   INFINITEmathceilrV   r   rt   ZRegisterWaitWithQueuer   r(   r[   r3   r_   r   r   )r   rJ   r   Z
_is_cancelmsr   rK   r   r!   r   r"   r     s$    

	zIocpProactor._wait_for_handlec                 C   s0   || j vr,| j | t| | jdd d S rL   )rI   rv   rV   r   r   r   r   objr!   r!   r"   r     s    
z IocpProactor._register_with_iocpc              
   C   s   |    t|| jd}|jr$|jd= |jstz|d d |}W n. tyh } z|| W Y d }~nd }~0 0 || ||||f| j|j	< |S r   )
r   r   r3   r   r#   r2   r<   r>   r   r(   )r   r   r   callbackr   r   r   r!   r!   r"   r     s     

zIocpProactor._registerc                 C   s   |    | j| dS )a  Unregister an overlapped object.

        Call this method when its future has been cancelled. The event can
        already be signalled (pending in the proactor event queue). It is also
        safe if the event is never signalled (because it was cancelled).
        N)r   r   rQ   r   r!   r!   r"   re     s    zIocpProactor._unregisterc                 C   s   t  |}|d |S rL   )r   r   )r   r   sr!   r!   r"   r     s    

zIocpProactor._get_accept_socketc                 C   s  |d u rt }n0|dk r tdnt|d }|t kr>tdt| j|}|d u rXqZd}|\}}}}z| j|\}}	}
}W nV t	y   | j
 r| j
dd||||f d |dtjfvrt| Y q>Y n0 |
| jv r|  q>| s>z||||	}W n< ty@ } z"|| | j| W Y d }~q>d }~0 0 || | j| q>| jD ]}	| j|	jd  q`| j  d S )Nr   znegative timeoutr   ztimeout too bigz8GetQueuedCompletionStatus() returned an unexpected eventz)err=%s transferred=%s key=%#x address=%#x)r-   status)r   
ValueErrorr   r   rV   ZGetQueuedCompletionStatusr   r   popKeyErrorr3   Z	get_debugr4   r   rM   rd   r   r1   doner2   r<   r   rQ   r>   r   r(   r|   )r   r   r   r  errZtransferredr   r(   r   r   r   r   r   r   r!   r!   r"   rO     sL    


	




"

zIocpProactor._pollc                 C   s   | j | d S r;   )r   rv   r   r!   r!   r"   _stop_serving>  s    zIocpProactor._stop_servingc                 C   s  | j d u rd S t| j D ]\}\}}}}| r6qt|trBqz|  W q ty } z>| j	d urd||d}|j
r|j
|d< | j	| W Y d }~qd }~0 0 qd}t }	|	| }
| jr|
t krtd| t |	  t | }
| | qg | _t| j  d | _ d S )NzCancelling a future failedr,   r0   g      ?z,%r is running after closing for %.1f seconds)r   listr   items	cancelledr   r[   r1   r2   r3   r   r4   time	monotonicr   debugrO   r   rM   rd   )r   r(   rS   r   r   r   r5   r6   Z
msg_updateZ
start_timeZnext_msgr!   r!   r"   r{   D  s>    



$zIocpProactor.closec                 C   s   |    d S r;   )r{   rN   r!   r!   r"   r}   s  s    zIocpProactor.__del__)r   )N)r   )r   )r   )r   N)r   )N)N)rA   rB   rC   rD   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   rf   r   r   r   re   r   rO   r  r{   r}   r!   r!   r!   r"   r     s8   








"
 

7/r   c                   @   s   e Zd Zdd ZdS )r   c           
         sP   t j|f|||||d| _ fdd} jjt jj}	|	| d S )N)r   r   r   r   r   c                    s    j  } | d S r;   )_procpollZ_process_exited)r   
returncoderN   r!   r"   r   ~  s    
z4_WindowsSubprocessTransport._start.<locals>.callback)	r   Popenr  r3   r`   r   intrG   r   )
r   r   r   r   r   r   r   r   r   r   r!   rN   r"   _starty  s    z"_WindowsSubprocessTransport._startN)rA   rB   rC   r  r!   r!   r!   r"   r   w  s   r   c                   @   s   e Zd ZeZdS )r   N)rA   rB   rC   r   _loop_factoryr!   r!   r!   r"   r     s   r   c                   @   s   e Zd ZeZdS )r   N)rA   rB   rC   r   r  r!   r!   r!   r"   r     s   r   )2rD   sysplatformImportErrorrV   rM   r   r   r   r   r   r  rj    r   r   r   r   r   r	   r
   r   logr   __all__rt   r   ZERROR_CONNECTION_REFUSEDZERROR_CONNECTION_ABORTEDr   r   Futurer   rF   r[   r_   objectrg   ZBaseSelectorEventLoopr~   ZBaseProactorEventLoopr   r   ZBaseSubprocessTransportr   r   ZBaseDefaultEventLoopPolicyr   r   r   r!   r!   r!   r"   <module>   sX   
0J4;e   `