o
    OZh%                     @   s(  d dl mZ d dlZd dlZd dlZd dlZzd dlZW n ey)   d dlZY nw d dl	Z	d dl
Z
ddlmZ g dZe
jdkpPee	doPee	doPee	j	d	ZG d
d dejZejZd8ddZe
jdkreg d7 Zd dlZd9ddddZdd Zdd Zdd ZG dd deZn#eg d7 Zd dlZe
jdkZdd Zdd  Zd!d Zd"d Zd#d$ Z d%d& Z!G d'd( d(Z"ee#e" j$e! d)d* Z%ee#e&j'e% ee#e(j)e% d+d, Z*d-d. Z+eej,e* e
jdkrd/d0 Z-d1d2 Z.ee	j	e- nd3d0 Z-d4d2 Z.ee	j	e- G d5d6 d6ed7Z/dS ):    )ABCMetaN   )context)send_handlerecv_handleForkingPicklerregisterdumpwin32CMSG_LEN
SCM_RIGHTSsendmsgc                       sJ   e Zd ZdZi ZejZ fddZe	dd Z
e	d	ddZejZ  ZS )
r   z&Pickler subclass used by multiprocess.c                    s0   t  j|i | | j | _| j| j d S N)super__init___copyreg_dispatch_tablecopydispatch_tableupdate_extra_reducers)selfargskwds	__class__ M/var/www/html/lang_env/lib/python3.10/site-packages/multiprocess/reduction.pyr   )   s   zForkingPickler.__init__c                 C   s   || j |< dS )z&Register a reduce function for a type.N)r   )clstypereducer   r   r   r   .   s   zForkingPickler.registerNc                 O   s.   t  }| ||g|R i || | S r   )ioBytesIOr	   	getbuffer)r   objprotocolr   r   bufr   r   r   dumps3   s   zForkingPickler.dumpsr   )__name__
__module____qualname____doc__r   copyregr   r   r   classmethodr   r&   pickleloads__classcell__r   r   r   r   r   $   s    
r   c                 O   s"   t ||g|R i ||  dS )z3Replacement for pickle.dump() using ForkingPickler.N)r   r	   )r#   filer$   r   r   r   r   r   r	   =   s   "r	   )	DupHandle	duplicatesteal_handleF)source_processc                C   s6   t  }|du r
|}|du r|}t || |d|t jS )z<Duplicate a handle.  (target_process is a handle not a pid!)Nr   )_winapiGetCurrentProcessDuplicateHandleDUPLICATE_SAME_ACCESS)handleZtarget_processinheritabler4   current_processr   r   r   r2   J   s   r2   c              	   C   sJ   t t jd| }zt ||t  ddt jt jB W t | S t | w )z5Steal a handle from process identified by source_pid.Fr   )r5   OpenProcessPROCESS_DUP_HANDLEr7   r6   r8   DUPLICATE_CLOSE_SOURCECloseHandle)Z
source_pidr9   Zsource_process_handler   r   r   r3   V   s   

r3   c                 C   s   t |tj|}| | dS z&Send a handle over a local connection.N)r1   r5   r8   send)connr9   destination_pidZdhr   r   r   r   b   s   r   c                 C   s   |    S ))Receive a handle over a local connection.)recvdetach)rB   r   r   r   r   g   s   r   c                   @   s"   e Zd ZdZdddZdd ZdS )r1   zPicklable wrapper for a handle.Nc              	   C   sf   |d u rt  }ttjd|}ztt |||dd| _W t| nt| w || _	|| _
d S )NFr   )osgetpidr5   r<   r=   r7   r6   _handler?   _access_pid)r   r9   accesspidprocr   r   r   r   m   s   

zDupHandle.__init__c              	   C   s^   | j t kr
| jS ttjd| j }zt|| jt | j	dtj
W t| S t| w )z1Get the handle.  This should only be called once.F)rK   rG   rH   rI   r5   r<   r=   r7   r6   rJ   r>   r?   )r   rN   r   r   r   rF   |   s   

zDupHandle.detachr   )r'   r(   r)   r*   r   rF   r   r   r   r   r1   k   s    
r1   )DupFdsendfdsrecvfdsdarwinc                 C   sZ   t  d|}tt|d g}| |gtjtj|fg tr)| ddkr+t	ddS dS )z,Send an array of fds over an AF_UNIX socket.i   r      Az%did not receive acknowledgement of fdN)
arraybyteslenr   socket
SOL_SOCKETr   ACKNOWLEDGErE   RuntimeError)sockfdsmsgr   r   r   rP      s   rP   c              	   C   s  t  d}|j| }| dt|\}}}}|s|stz[tr%| d t|dkr3t	dt| |d \}}	}
|tj
kro|	tjkrtt|
|j dkrOt||
 t|d |d krjtdt||d t|W S W t	dW t	d ttfy   Y t	dw )	z/Receive an array of fds over an AF_UNIX socket.rS   r   rU   zreceived %d items of ancdatar   rT   z Len is {0:n} but msg[0] is {1!r}zInvalid data received)rV   itemsizerecvmsgrY   
CMSG_SPACEEOFErrorr[   rA   rX   r\   rZ   r   
ValueError	frombytesAssertionErrorformatlist
IndexError)r]   sizeaZ
bytes_sizer_   ancdataflagsaddr
cmsg_level	cmsg_type	cmsg_datar   r   r   rQ      sB   






rQ   c                 C   sH   t |  t jt j}t||g W d   dS 1 sw   Y  dS r@   )rY   fromfdfilenoAF_UNIXSOCK_STREAMrP   )rB   r9   rC   sr   r   r   r      s   "c                 C   sH   t |  t jt j}t|dd W  d   S 1 sw   Y  dS )rD   r   r   N)rY   rr   rs   rt   ru   rQ   )rB   rv   r   r   r   r      s   $c                 C   sB   t  }|dur||| S trddlm} || S td)zReturn a wrapper for an fd.Nr   )resource_sharerz&SCM_RIGHTS appears not to be available)r   Zget_spawning_popenrO   Zduplicate_for_childHAVE_SEND_HANDLE rw   rd   )fdZ	popen_objrw   r   r   r   rO      s   
rO   c                 C   s.   | j d u rt| j| jjffS t| j | jjffS r   )__self__getattrr   __func__r'   mr   r   r   _reduce_method   s   
r   c                   @   s   e Zd Zdd ZdS )_Cc                 C   s   d S r   r   )r   r   r   r   f   s   z_C.fN)r'   r(   r)   r   r   r   r   r   r      s    r   c                 C   s   t | j| jffS r   )r|   __objclass__r'   r~   r   r   r   _reduce_method_descriptor   s   r   c                 C   s   t | j| j| jp	i ffS r   )_rebuild_partialfuncr   keywords)pr   r   r   _reduce_partial      r   c                 C   s   t j| g|R i |S r   )	functoolspartial)r   r   r   r   r   r   r      r   r   c                 C   s   ddl m} t|| ffS )Nr   )	DupSocket)rw   r   _rebuild_socket)rv   r   r   r   r   _reduce_socket   s   r   c                 C   s   |   S r   )rF   )Zdsr   r   r   r      s   r   c                 C   s"   t |  }t|| j| j| jffS r   )rO   rs   r   familyr   proto)rv   dfr   r   r   r      s   c                 C   s   |   }tj||||dS )N)rs   )rF   rY   )r   r   r   r   rz   r   r   r   r      s   c                   @   sd   e Zd ZdZeZeZeZeZeZe	j
dkreZeZeZneZeZeZeZeZeZeZeZdd ZdS )AbstractReducerzAbstract base class for use in implementing a Reduction class
    suitable for use in replacing the standard reduction mechanism
    used in multiprocess.r
   c                 G   sN   t tt jt t ttjt t ttj	t t t
jt t tjt d S r   )r   r   r   r   r   rh   appendr   int__add__r   r   r   rY   r   )r   r   r   r   r   r     s
   zAbstractReducer.__init__N)r'   r(   r)   r*   r   r   r	   r   r   sysplatformr3   r2   r1   rP   rQ   rO   r   r   r   r   r   r   r   r   r   r   r      s(    
r   )	metaclassr   )NF)0abcr   r+   r   r    rG   Zdillr-   ImportErrorrY   r   ry   r   __all__r   hasattrrx   Picklerr   r   r	   r5   r2   r3   r   r   objectr1   rV   r[   rP   rQ   rO   r   r   r   r   r   rh   r   r   r   r   r   r   r   r   r   r   r   r   r   <module>   st   	


	

#

