File: //lib64/python3.6/multiprocessing/__pycache__/connection.cpython-36.opt-2.pyc
3
�QgVy � @ s d dddgZ ddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl
m Z ddl
m Z m
Z
dd lmZ ejZy$ddlZdd
lmZmZmZmZ W n$ ek
r� ejd kr dZY nX d Zd
ZdZej � Z dZ dgZ e ed��rdZ e dg7 Z ejd k�r dZ e dg7 Z efdd�Z!dd� Z"dd� Z#dd� Z$dd� Z%G d d � d �Z&e�rnG d d � d e&�Z'G d d!� d!e&�Z(G d"d� de)�Z*dPd#d �Z+ejd k�r�dQd%d�Z,n
dRd&d�Z,G d'd(� d(e)�Z-d)d*� Z.ejd k�r�G d+d,� d,e)�Z/d-d.� Z0d/Z1d0Z2d1Z3d2Z4d3d4� Z5d5d6� Z6G d7d8� d8e)�Z7d9d:� Z8d;d<� Z9G d=d>� d>e*�Z:d?d@� Z;ejd k�rzdAdB� Z<ej=ej>hZ?dSdCd�Z@n,ddlAZAe eAdD��r�eAjBZCneAjDZCdTdEd�Z@ejd k�r�dFdG� ZEdHdI� ZFejGe(eE� dJdK� ZHdLdM� ZIejGe'eH� n dNdG� ZEdOdI� ZFejGe(eE� dS )U�Client�Listener�Pipe�wait� N� )�util)�AuthenticationError�BufferTooShort)� reduction)�
WAIT_OBJECT_0�WAIT_ABANDONED_0� WAIT_TIMEOUT�INFINITE�win32i g 4@Zsha256�AF_INET�AF_UNIX�AF_PIPEc C s t j� | S )N)�time� monotonic)�timeout� r �2/usr/lib64/python3.6/multiprocessing/connection.py�
_init_timeout? s r c C s t j� | kS )N)r r )�tr r r �_check_timeoutB s r c C sX | dkr d S | dkr&t jdtj� d�S | dkrLt jdtj� tt�f d d�S td
��d S ) Nr � localhostr r z listener-)�prefix�dirr z\\.\pipe\pyc-%d-%d-� zunrecognized family)r r ) �tempfileZmktempr Z get_temp_dir�os�getpid�next�
_mmap_counter�
ValueError)�familyr r r �arbitrary_addressI s r& c C sJ t jdkr | dkr td| ��t jdkrF| dkrFtt| �sFtd| ��d S )Nr r z Family %s is not recognized.r )�sys�platformr$ �hasattr�socket)r% r r r �_validate_familyW s
r+ c C sJ t | �tkrdS t | �tkr*| jd�r*dS t | �tkr:dS td| ��d S )Nr z\\r r z address type of %r unrecognized)�type�tuple�str�
startswithr$ )�addressr r r � address_typec s r1 c @ s� e Zd ZdZd+dd�Zdd� Zdd� Zd d
� Zd d � Zd
d� Z e
dd� �Z e
dd� �Z e
dd� �Z
dd� Zdd� Zd,dd�Zd d � Zd-d d �Zd.d d!�Zd"d#� Zd/d%d&�Zd'd(� Zd)d*� ZdS )0�_ConnectionBaseNTc C sB |j � }|dk rtd��| r,| r,td��|| _|| _|| _d S )Nr zinvalid handlez6at least one of `readable` and `writable` must be True)� __index__r$ �_handle� _readable� _writable)�self�handle�readable�writabler r r �__init__y s z_ConnectionBase.__init__c C s | j d k r| j� d S )N)r4 �_close)r7 r r r �__del__� s
z_ConnectionBase.__del__c C s | j d krtd��d S )Nzhandle is closed)r4 �OSError)r7 r r r �
_check_closed� s
z _ConnectionBase._check_closedc C s | j std��d S )Nzconnection is write-only)r5 r> )r7 r r r �_check_readable� s z _ConnectionBase._check_readablec C s | j std��d S )Nzconnection is read-only)r6 r> )r7 r r r �_check_writable� s z _ConnectionBase._check_writablec C s" | j rd| _n| j� td��d S )NFzbad message length)r6 r5 �closer> )r7 r r r �_bad_message_length� s z#_ConnectionBase._bad_message_lengthc C s
| j d kS )N)r4 )r7 r r r �closed� s z_ConnectionBase.closedc C s | j S )N)r5 )r7 r r r r9 � s z_ConnectionBase.readablec C s | j S )N)r6 )r7 r r r r: � s z_ConnectionBase.writablec C s | j � | jS )N)r? r4 )r7 r r r �fileno� s z_ConnectionBase.filenoc C s$ | j d k r z | j� W d d | _ X d S )N)r4 r< )r7 r r r rB � s
z_ConnectionBase.closer c C s� | j � | j� t|�}|jdkr.tt|��}t|�}|dk rFtd��||k rVtd��|d krh|| }n&|dk rztd��n|| |kr�td��| j|||| � � d S )Nr r zoffset is negativezbuffer length < offsetzsize is negativez buffer length < offset + size)r? rA �
memoryview�itemsize�bytes�lenr$ � _send_bytes)r7 �buf�offset�size�m�nr r r �
send_bytes� s"
z_ConnectionBase.send_bytesc C s$ | j � | j� | jtj|�� d S )N)r? rA rJ �_ForkingPickler�dumps)r7 �objr r r �send� s z_ConnectionBase.sendc C sJ | j � | j� |d k r(|dk r(td��| j|�}|d krB| j� |j� S )Nr znegative maxlength)r? r@ r$ � _recv_bytesrC �getvalue)r7 Z maxlengthrK r r r �
recv_bytes� s
z_ConnectionBase.recv_bytesc C s� | j � | j� t|���}|j}|t|� }|dk r>td��n||krNtd��| j� }|j� }||| k rvt|j � ��|j
d� |j ||| || | � � |S Q R X d S )Nr znegative offsetzoffset too large) r? r@ rF rG rI r$ rU �tellr rV �seek�readinto)r7 rK rL rN rG Zbytesize�resultrM r r r �recv_bytes_into� s"
z _ConnectionBase.recv_bytes_intoc C s& | j � | j� | j� }tj|j� �S )N)r? r@ rU rQ �loads� getbuffer)r7 rK r r r �recv� s z_ConnectionBase.recv� c C s | j � | j� | j|�S )N)r? r@ �_poll)r7 r r r r �poll s z_ConnectionBase.pollc C s | S )Nr )r7 r r r � __enter__ s z_ConnectionBase.__enter__c C s | j � d S )N)rB )r7 �exc_type� exc_value�exc_tbr r r �__exit__
s z_ConnectionBase.__exit__)TT)r N)N)r )r` )�__name__�
__module__� __qualname__r4 r; r= r? r@ rA rC �propertyrD r9 r: rE rB rP rT rW r\ r_ rb rc rg r r r r r2 v s(
r2 c @ s@ e Zd ZdZejfdd�Zdd� Zd
dd�Zd d
� Z d d � Z
dS )�PipeConnectionFc C s || j � d S )N)r4 )r7 Z _CloseHandler r r r< s zPipeConnection._closec C sh t j| j|dd�\}}z<y |t jkr6t j|jgdt�}W n |j� � Y nX W d |jd�\}}X d S )NT)�
overlappedF) �_winapiZ WriteFiler4 �ERROR_IO_PENDING�WaitForMultipleObjects�eventr �cancel�GetOverlappedResult)r7 rK �ov�err�waitresZnwrittenr r r rJ s
zPipeConnection._send_bytesNc C s | j rd| _ tj� S |d kr dnt|d�}y�tj| j|dd�\}}z<y |tjkrbtj|j gdt
�}W n |j � � Y nX W d |j d�\}}|dkr�tj� }|j
|j� � |S |tjkr�| j||�S X W n8 tk
�r } z|jtjkr�t�n� W Y d d }~X nX td��d S )NF� T)rm r z.shouldn't get here; expected KeyboardInterrupt)�_got_empty_message�io�BytesIO�minrn �ReadFiler4 ro rp rq r rr rs �writer^ ZERROR_MORE_DATA�_get_more_datar> �winerror�ERROR_BROKEN_PIPE�EOFError� RuntimeError) r7 �maxsizeZbsizert ru rv Znread�f�er r r rU * s6
zPipeConnection._recv_bytesc C s. | j stj| j�d dkr dS tt| g|��S )Nr T)rx rn �
PeekNamedPiper4 �boolr )r7 r r r r ra J s zPipeConnection._pollc C s� |j � }tj� }|j|� tj| j�d }|d k rJt|�| |krJ| j� tj | j|dd�\}}|j
d�\}}|j|j � � |S )Nr T)rm ) r^ ry rz r} rn r� r4 rI rC r| rs )r7 rt r� rK r� �leftru Zrbytesr r r r~ P s
z PipeConnection._get_more_data)N) rh ri rj rx rn � CloseHandler< rJ rU ra r~ r r r r rl s
rl c @ sx e Zd Zer(ejfdd�ZejZej Z
ne j fdd�Ze j
Ze jZ
efdd�Ze
fdd�Zdd � Zdd d �Zd
d� Zd
S )�
Connectionc C s || j � d S )N)r4 )r7 r< r r r r< g s zConnection._closec C s || j � d S )N)r4 )r7 r< r r r r< l s c C s< t |�}x.|| j|�}||8 }|dkr(P ||d � }q
W d S )Nr )rI r4 )r7 rK r} � remainingrO r r r �_sendq s zConnection._sendc C sf t j� }| j}|}xN|dkr`|||�}t|�}|dkrL||krDt�ntd��|j|� ||8 }qW |S )Nr z got end of file during message)ry rz r4 rI r� r> r} )r7 rM �readrK r8 r� �chunkrO r r r �_recvz s
zConnection._recvc C sD t |�}tjd|�}|dkr2| j|� | j|� n| j|| � d S )Nz!ii @ )rI �structZpackr� )r7 rK rO �headerr r r rJ � s
zConnection._send_bytesNc C s: | j d�}tjd|j� �\}|d k r0||kr0d S | j |�S )N� z!i)r� r� ZunpackrV )r7 r� rK rM r r r rU � s
zConnection._recv_bytesc C s t | g|�}t|�S )N)r r� )r7 r �rr r r ra � s zConnection._poll)N)rh ri rj rn �_multiprocessingZ closesocketr< rT Z_writer_ Z_readr rB r} r� r� r� rJ rU ra r r r r r� ` s
r� c @ sN e Zd Zddd�Zdd� Zdd� Zed d
� �Zed d
� �Zd d
� Z dd� Z
dS )r Nr c C sr |p|rt |�pt}|p t|�}t|� |dkr>t||�| _nt|||�| _|d k rht|t� rht d��|| _
d S )Nr z authkey should be a byte string) r1 �default_familyr& r+ � PipeListener� _listener�SocketListener�
isinstancerH � TypeError�_authkey)r7 r0 r% �backlog�authkeyr r r r; � s zListener.__init__c C s> | j d krtd��| j j� }| jr:t|| j� t|| j� |S )Nzlistener is closed)r� r> �acceptr� �deliver_challenge�answer_challenge)r7 �cr r r r� � s
zListener.acceptc C s | j }|d k r d | _ |j� d S )N)r� rB )r7 Zlistenerr r r rB � s zListener.closec C s | j jS )N)r� �_address)r7 r r r �<lambda>� s zListener.<lambda>c C s | j jS )N)r� �_last_accepted)r7 r r r r� � s c C s | S )Nr )r7 r r r rc � s zListener.__enter__c C s | j � d S )N)rB )r7 rd re rf r r r rg � s zListener.__exit__)NNr N) rh ri rj r; r� rB rk r0 Z
last_acceptedrc rg r r r r r � s
c C sj |p
t | �}t|� |dkr&t| �}nt| �}|d k rJt|t� rJtd��|d k rft||� t||� |S )Nr z authkey should be a byte string) r1 r+ �
PipeClient� SocketClientr� rH r� r� r� )r0 r% r� r� r r r r � s
Tc C sj | r>t j� \}}|jd� |jd� t|j� �}t|j� �}n$tj� \}}t|dd�}t|dd�}||fS )NTF)r: )r9 )r* Z
socketpair� setblockingr� �detachr �pipe)�duplex�s1�s2�c1�c2Zfd1Zfd2r r r r � s
c
C s� t d�}| r*tj}tjtjB }tt }}ntj}tj}dt }}tj||tjB tj B tj
tj B tj B d||tj
tj�}tj||dtjtjtjtj�}tj|tj d d � tj|dd�}|jd�\} }
t|| d�} t|| d�} | | fS )Nr r r T)rm )r: )r9 )r& rn �PIPE_ACCESS_DUPLEX� GENERIC_READ�
GENERIC_WRITE�BUFSIZEZPIPE_ACCESS_INBOUND�CreateNamedPipe�FILE_FLAG_OVERLAPPED� FILE_FLAG_FIRST_PIPE_INSTANCE�PIPE_TYPE_MESSAGE�PIPE_READMODE_MESSAGE� PIPE_WAIT�NMPWAIT_WAIT_FOREVER�NULL�
CreateFile�
OPEN_EXISTING�SetNamedPipeHandleState�ConnectNamedPipers rl )
r� r0 Zopenmode�accessZobsizeZibsizeZh1Zh2rm �_ru r� r� r r r r s2
c @ s& e Zd Zd dd�Zdd� Zdd� ZdS )
r� r c C s� t j tt |��| _yRtjdkr2| jjt jt jd� | jjd� | jj |� | jj
|� | jj � | _ W n t
k
r� | jj� � Y nX || _d | _|dkr�tj| tj|fdd�| _nd | _d S )N�posixr Tr r )�args� exitpriority)r* �getattr�_socketr �nameZ
setsockoptZ
SOL_SOCKETZ SO_REUSEADDRr� ZbindZlistenZ getsocknamer� r> rB Z_familyr� r �Finalize�unlink�_unlink)r7 r0 r% r� r r r r; < s$
zSocketListener.__init__c C s& | j j� \}| _|jd� t|j� �S )NT)r� r� r� r� r� r� )r7 �sr r r r� T s
zSocketListener.acceptc C s0 z| j j� W d | j}|d k r*d | _|� X d S )N)r� rB r� )r7 r� r r r rB Y s zSocketListener.closeN)r )rh ri rj r; r� rB r r r r r� 8 s
r� c C sD t | �}tjtt|���"}|jd� |j| � t|j� �S Q R X d S )NT)r1 r* r� r� Zconnectr� r� )r0 r% r� r r r r� c s
r� c @ s4 e Zd Zd dd�Zd dd�Zdd� Zed d
� �ZdS )
r� Nc C sL || _ | jdd�g| _d | _tjd| j � tj| tj| j| j fdd�| _ d S )NT)�firstz listener created with address=%rr )r� r� )
r� � _new_handle�
_handle_queuer� r � sub_debugr� r� �_finalize_pipe_listenerrB )r7 r0 r� r r r r; w s zPipeListener.__init__Fc C sH t jt jB }|r|t jO }t j| j|t jt jB t jB t j t
t
t j t j �S )N)
rn r� r� r� r� r� r� r� r� ZPIPE_UNLIMITED_INSTANCESr� r� r� )r7 r� �flagsr r r r� � s
zPipeListener._new_handlec C s� | j j| j� � | j jd�}ytj|dd�}W n0 tk
r^ } z|jtjkrN� W Y d d }~X nPX z<ytj |j
gdt �}W n |j � tj
|� � Y nX W d |jd�\}}X t|�S )Nr T)rm F)r� �appendr� �poprn r� r> r Z
ERROR_NO_DATArp rq r rr r� rs rl )r7 r8 rt r� �resr� ru r r r r� � s"
zPipeListener.acceptc C s( t jd|� x| D ]}tj|� qW d S )Nz closing listener with address=%r)r r� rn r� )Zqueuer0 r8 r r r r� � s
z$PipeListener._finalize_pipe_listener)N)F)rh ri rj r; r� r� � staticmethodr� r r r r r� s s
r� c C s� t � }x~y6tj| d� tj| tjtjB dtjtjtjtj�}W n> t k
r| } z"|j
tj tj fksjt
|�rl� W Y d d }~X qX P qW � tj|tjd d � t|�S )Ni� r )r rn Z
WaitNamedPiper� r� r� r� r� r� r> r ZERROR_SEM_TIMEOUTZERROR_PIPE_BUSYr r� r� rl )r0 r �hr� r r r r� � s"
r� � s #CHALLENGE#s #WELCOME#s #FAILURE#c C sf dd l }tjt�}| jt| � |j||t�j� }| j d�}||krP| jt
� n| jt � t d��d S )Nr � zdigest received was wrong)
�hmacr �urandom�MESSAGE_LENGTHrP � CHALLENGE�new�HMAC_DIGEST_NAME�digestrW �WELCOME�FAILUREr )�
connectionr� r� �messager� �responser r r r� � s
r� c C s\ dd l }| jd�}|tt�d � }|j||t�j� }| j|� | jd�}|tkrXt d��d S )Nr r� zdigest sent was rejected)
r� rW rI r� r� r� r� rP r� r )r� r� r� r� r� r� r r r r� � s
r� c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�ConnectionWrapperc C s: || _ || _|| _x"dD ]}t||�}t| ||� qW d S )NrE rB rb rW rP )rE rB rb rW rP )�_conn�_dumps�_loadsr� �setattr)r7 �connrR r] �attrrS r r r r; � s
zConnectionWrapper.__init__c C s | j |�}| jj|� d S )N)r� r� rP )r7 rS r� r r r rT � s
zConnectionWrapper.sendc C s | j j� }| j|�S )N)r� rW r� )r7 r� r r r r_ � s
zConnectionWrapper.recvN)rh ri rj r; rT r_ r r r r r� � s r� c C s t j| fd d d d�jd�S )Nr zutf-8)� xmlrpclibrR �encode)rS r r r �
_xml_dumps� s r� c C s t j| jd��\\}}|S )Nzutf-8)r� r] �decode)r� rS �methodr r r �
_xml_loads� s r� c @ s e Zd Zdd� ZdS )� XmlListenerc C s dd l jatj| �}t|tt�S )Nr )�
xmlrpc.client�clientr� r r� r� r� r� )r7 rS r r r r� s
zXmlListener.acceptN)rh ri rj r� r r r r r� s r� c O s dd l jatt| |�tt�S )Nr )r� r� r� r� r r� r� )r� �kwdsr r r � XmlClient
s
r� c C s� t | �}g }x�|r�tj|d|�}|tkr,P n\t| koFtt|� k n rV|t8 }n2t| koptt|� k n r�|t8 }ntd��|j|| � ||d d � }d}qW |S )NFzShould not get herer r ) �listrn rp r
r rI r r� r� )Zhandlesr �L�readyr� r r r �_exhaustive_wait s
r� c
. sn |d krt }n |dk r d}nt|d d �}t| �} i �g }t� � t� }�zH�x2| D �](}yt|d�}W n tk
r� |�|j� < Y qTX ytj|� dd�\}}W n8 t k
r� } z d |j
}}|t krʂ W Y d d }~X nX |tj kr�|j
|� |�|j< qT|�rptj� d d� dk�rpy|jd�\} }W n* t k
�rT } z |j
}W Y d d }~X nX | �rpt|d ��rpd|_� j|� d}qTW t�j� |�}W d x|D ]}|j� �q�W x�|D ]�}y|jd�\} }W n6 t k
�r� } z|j
}|t k�r� W Y d d }~X nX |tjk�r��|j }� j|� |dk�r�t|d ��r�d|_�q�W X � j�fd
d �|D �� � fd d
�| D �S )Nr i� g �?rE T� � Frx c 3 s | ]}� | V qd S )Nr )�.0r� )�waithandle_to_objr r � <genexpr>v s zwait.<locals>.<genexpr>c s g | ]}|� kr|�qS r r )r� �o)�
ready_objectsr r �
<listcomp>w s zwait.<locals>.<listcomp>)r� r� )r �intr� �setr� �AttributeErrorr3 rn r| r> r �
_ready_errorsro r� rq r' Zgetwindowsversionrs r) rx �addr� �keysrr ZERROR_OPERATION_ABORTED�update)
� object_listr Zov_listZ
ready_handlesr� rE rt ru r� r� r )r r� r r + sh
� PollSelectorc C s� t � �x}x| D ]}|j|tj� qW |d k r8tj� | }x@|j|�}|rVdd� |D �S |d k r:|tj� }|dk r:|S q:W W d Q R X d S )Nc S s g | ]\}}|j �qS r )Zfileobj)r� �keyZeventsr r r r � s zwait.<locals>.<listcomp>r )�
_WaitSelector�register� selectorsZ
EVENT_READr r Zselect)r r ZselectorrS Zdeadliner� r r r r � s
c C sN | j � }tj|tjtj��*}ddlm} |j|�}t|| j | j
ffS Q R X d S )Nr )�resource_sharer) rE r* Zfromfdr Z SOCK_STREAMr r Z DupSocket�rebuild_connectionr9 r: )r� r8 r� r �dsr r r �reduce_connection� s
r c C s | j � }t|j � ||�S )N)r� r� )r r9 r: Zsockr r r r � s r c C sB | j r tjnd| jrtjndB }tj| j� |�}t|| j | jffS )Nr ) r9 rn ZFILE_GENERIC_READr: ZFILE_GENERIC_WRITEr
Z DupHandlerE �rebuild_pipe_connection)r� r� �dhr r r �reduce_pipe_connection� s r c C s | j � }t|||�S )N)r� rl )r r9 r: r8 r r r r � s r c C s t j| j� �}t|| j| jffS )N)r
ZDupFdrE r r9 r: )r� �dfr r r r � s c C s | j � }t|||�S )N)r� r� )r r9 r: �fdr r r r � s )NN)T)T)N)N)J�__all__ry r r' r* r� r r � itertoolsr� r r r r �contextr
ZForkingPicklerrQ rn r r r
r � ImportErrorr( r� ZCONNECTION_TIMEOUTr� �countr# r� Zfamiliesr) r r r& r+ r1 r2 rl r� �objectr r r r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� ZERROR_NETNAME_DELETEDr r r r
r ZSelectSelectorr r r
r r r r r r �<module>
s�
PJ8
,+ 8
P