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Editing: asyncore.cpython-38.pyc
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U i�f~N � @ sh d Z ddlZddlZddlZddlZddlZddlZddlmZm Z m Z m Z m Z m Z mZmZmZmZmZmZmZ ee e eeeeh�Zze W n ek r� i ZY nX dd� ZG dd� de�Zee e fZ dd � Z d d � Z d d � Z!dd� Z"d&dd�Z#d'dd�Z$e$Z%d(dd�Z&G dd� d�Z'G dd � d e'�Z(d d � Z)d)d d �Z*ej+d!k�rdG d"d#� d#�Z,G d$d%� d%e'�Z-dS )*a� Basic infrastructure for asynchronous socket service clients and servers. There are only two ways to have a program on a single processor do "more than one thing at a time". Multi-threaded programming is the simplest and most popular way to do it, but there is another very different technique, that lets you have nearly all the advantages of multi-threading, without actually using multiple threads. it's really only practical if your program is largely I/O bound. If your program is CPU bound, then pre-emptive scheduled threads are probably what you really need. Network servers are rarely CPU-bound, however. If your operating system supports the select() system call in its I/O library (and nearly all do), then you can use it to juggle multiple communication channels at once; doing other work while your I/O is taking place in the "background." Although this strategy can seem strange and complex, especially at first, it is in many ways easier to understand and control than multi-threaded programming. The module documented here solves many of the difficult problems for you, making the task of building sophisticated high-performance network servers and clients a snap. � N) �EALREADY� EINPROGRESS� EWOULDBLOCK� ECONNRESET�EINVAL�ENOTCONN� ESHUTDOWN�EISCONN�EBADF� ECONNABORTED�EPIPE�EAGAIN� errorcodec C sH z t �| �W S tttfk rB | tkr6t| Y S d| Y S X d S )NzUnknown error %s)�os�strerror� ValueError� OverflowError� NameErrorr )�err� r �-/opt/alt/python38/lib64/python3.8/asyncore.py� _strerrorD s r c @ s e Zd ZdS )�ExitNowN)�__name__� __module__� __qualname__r r r r r L s r c C s: z | � � W n( tk r" � Y n | �� Y nX d S �N)�handle_read_event�_reraised_exceptions� handle_error��objr r r �readQ s r" c C s: z | � � W n( tk r" � Y n | �� Y nX d S r )�handle_write_eventr r r r r r �writeY s r$ c C s: z | � � W n( tk r" � Y n | �� Y nX d S r )�handle_expt_eventr r r r r r � _exceptiona s r& c C s� zX|t j@ r| �� |t j@ r&| �� |t j@ r8| �� |t jt jB t j B @ rV| � � W nh t k r� } z$|j d t kr�| �� n| � � W 5 d }~X Y n( tk r� � Y n | �� Y nX d S �Nr )�select�POLLINr �POLLOUTr# �POLLPRIr% ZPOLLHUPZPOLLERRZPOLLNVAL� handle_close�OSError�args� _DISCONNECTEDr r )r! �flags�er r r � readwritei s" r2 � c C s< |d kr t }|�r8g }g }g }t|�� �D ]L\}}|�� }|�� }|rP|�|� |rd|jsd|�|� |sl|r*|�|� q*g | kr�| kr�|kr�n nt�| � d S t � |||| �\}}}|D ] }|� |�}|d kr�q�t |� q�|D ]"}|� |�}|d k�rq�t |� q�|D ]&}|� |�}|d k�r,�qt |� �qd S r )� socket_map�list�items�readable�writable�append� accepting�time�sleepr( �getr" r$ r& ) �timeout�map�r�wr1 �fdr! Zis_rZis_wr r r �poll} sD " rC c C s� |d kr t }| d k r t| d �} t�� }|r�t|�� �D ]L\}}d}|�� r\|tjtjB O }|� � rt|j st|tj O }|r8|� ||� q8|�| �}|D ]&\}}|� |�}|d kr�q�t||� q�d S )Ni� r )r4 �intr( rC r5 r6 r7 r) r+ r8 r: r* �registerr= r2 )r> r? ZpollsterrB r! r0 r@ r r r �poll2� s( rF � >@Fc C sb |d kr t }|r ttd�r t}nt}|d kr>|r^|| |� q,n |r^|dkr^|| |� |d }q>d S )NrC r � )r4 �hasattrr( rF rC )r> Zuse_pollr? �countZpoll_funr r r �loop� s rK c @ s2 e Zd ZdZdZdZdZdZdZe dh�Z dAdd�Z dd� Z dBdd �Z dCd d �Zejejfd d �ZdDdd�Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d!� Z d"d#� Z d$d%� Z dEd'd(�Z d)d*� Z d+d,� Z!d-d.� Z"d/d0� Z#d1d2� Z$d3d4� Z%d5d6� Z&d7d8� Z'd9d:� Z(d;d<� Z)d=d>� Z*d?d@� Z+dS )F� dispatcherFN�warningc C s� |d krt | _n|| _d | _|r�|�d� | �||� d| _z|�� | _W q� tk r� } z*|j d t t fkrvd| _n | � |� � W 5 d }~X Y q�X nd | _ d S �Nr TF)r4 �_map�_fileno� setblocking� set_socket� connectedZ getpeername�addrr- r. r r � del_channel�socket)�self�sockr? r r r r �__init__� s zdispatcher.__init__c C s� | j jd | j j g}| jr.| jr.|�d� n| jr>|�d� | jd k r�z|�d| j � W n$ tk r� |�t| j�� Y nX dd� |�t | �f S )N�.Z listeningrS z%s:%dz <%s at %#x>� ) � __class__r r r: rT r9 rS � TypeError�repr�join�id)rW Zstatusr r r �__repr__� s zdispatcher.__repr__c C s |d kr| j }| || j< d S r )rO rP )rW r? r r r � add_channel s zdispatcher.add_channelc C s, | j }|d kr| j}||kr"||= d | _ d S r )rP rO )rW r? rB r r r rU s zdispatcher.del_channelc C s. ||f| _ t�||�}|�d� | �|� d S r' )Zfamily_and_typerV rQ rR )rW Zfamily�typerX r r r � create_socket s zdispatcher.create_socketc C s || _ |�� | _| �|� d S r )rV �filenorP rb �rW rX r? r r r rR s zdispatcher.set_socketc C sD z*| j �t jt j| j �t jt j�dB � W n tk r> Y nX d S )NrH )rV Z setsockopt� SOL_SOCKETZ SO_REUSEADDR� getsockoptr- �rW r r r �set_reuse_addr# s ���zdispatcher.set_reuse_addrc C s dS �NTr ri r r r r7 4 s zdispatcher.readablec C s dS rk r ri r r r r8 7 s zdispatcher.writablec C s( d| _ tjdkr |dkr d}| j�|�S )NT�nt� )r: r �namerV �listen)rW Znumr r r ro > s zdispatcher.listenc C s || _ | j�|�S r )rT rV �bind)rW rT r r r rp D s zdispatcher.bindc C sp d| _ d| _| j�|�}|tttfks8|tkrBtj dkrB|| _ d S |dt fkr^|| _ | � � nt |t| ��d S )NFTrl r )rS � connectingrV Z connect_exr r r r r rn rT r �handle_connect_eventr- r )rW Zaddressr r r r �connectH s �� zdispatcher.connectc C sv z| j �� \}}W nV tk r( Y d S tk rh } z$|jd tttfkrVW Y � d S � W 5 d }~X Y n X ||fS d S r' )rV �acceptr] r- r. r r r )rW ZconnrT �whyr r r rt V s zdispatcher.acceptc C st z| j �|�}|W S tk rn } z>|jd tkr<W Y �*dS |jd tkr\| �� W Y � dS � W 5 d }~X Y nX d S r' )rV �sendr- r. r r/ r, )rW �data�resultru r r r rv d s zdispatcher.sendc C sr z(| j �|�}|s | �� W dS |W S W nD tk rl } z&|jd tkrZ| �� W Y � dS � W 5 d }~X Y nX d S )N� r )rV �recvr, r- r. r/ )rW Z buffer_sizerw ru r r r rz q s zdispatcher.recvc C sn d| _ d| _d| _| �� | jd k rjz| j�� W n6 tk rh } z|jd tt fkrX� W 5 d }~X Y nX d S )NFr ) rS r: rq rU rV �closer- r. r r )rW ru r r r r{ � s zdispatcher.closec C s t j�dt|� � d S )Nzlog: %s )�sys�stderrr$ �str)rW �messager r r �log� s zdispatcher.log�infoc C s || j krtd||f � d S )Nz%s: %s)�ignore_log_types�print)rW r rc r r r �log_info� s zdispatcher.log_infoc C s: | j r| �� n&| js.| jr$| �� | �� n| �� d S r )r: � handle_acceptrS rq rr � handle_readri r r r r � s z dispatcher.handle_read_eventc C s@ | j �t jt j�}|dkr(t|t|���| �� d| _d| _d S rN ) rV rh rg �SO_ERRORr- r �handle_connectrS rq �rW r r r r rr � s z dispatcher.handle_connect_eventc C s* | j r d S | js | jr | �� | �� d S r )r: rS rq rr � handle_writeri r r r r# � s z dispatcher.handle_write_eventc C s0 | j �t jt j�}|dkr$| �� n| �� d S r' )rV rh rg r� r, � handle_exptr� r r r r% � s z dispatcher.handle_expt_eventc C sX t � \}}}}z t| �}W n dt| � }Y nX | �d||||f d� | �� d S )Nz)<__repr__(self) failed for object at %0x>z:uncaptured python exception, closing channel %s (%s:%s %s)�error)�compact_tracebackr^ r` r� r, )rW Znil�t�v�tbinfoZ self_reprr r r r � s �� zdispatcher.handle_errorc C s | � dd� d S )Nz!unhandled incoming priority eventrM �r� ri r r r r� � s zdispatcher.handle_exptc C s | � dd� d S )Nzunhandled read eventrM r� ri r r r r� � s zdispatcher.handle_readc C s | � dd� d S )Nzunhandled write eventrM r� ri r r r r� � s zdispatcher.handle_writec C s | � dd� d S )Nzunhandled connect eventrM r� ri r r r r� � s zdispatcher.handle_connectc C s | � � }|d k r| j|� d S r )rt �handle_accepted)rW Zpairr r r r� � s zdispatcher.handle_acceptc C s |� � | �dd� d S )Nzunhandled accepted eventrM )r{ r� )rW rX rT r r r r� � s zdispatcher.handle_acceptedc C s | � dd� | �� d S )Nzunhandled close eventrM )r� r{ ri r r r r, � s zdispatcher.handle_close)NN)N)N)N)r� ),r r r �debugrS r: rq �closingrT � frozensetr� rY ra rb rU rV ZAF_INETZ SOCK_STREAMrd rR rj r7 r8 ro rp rs rt rv rz r{ r� r� r rr r# r% r r� r� r� r� r� r� r, r r r r rL � sJ rL c @ s6 e Zd Zd dd�Zdd� Zdd� Zdd � Zd d � ZdS ) �dispatcher_with_sendNc C s t �| ||� d| _d S )Nry )rL rY � out_bufferrf r r r rY � s z dispatcher_with_send.__init__c C s. d}t �| | jd d� �}| j|d � | _d S )Nr i )rL rv r� )rW Znum_sentr r r � initiate_send s z"dispatcher_with_send.initiate_sendc C s | � � d S r )r� ri r r r r� s z!dispatcher_with_send.handle_writec C s | j pt| j�S r )rS �lenr� ri r r r r8 s z dispatcher_with_send.writablec C s0 | j r| �dt|� � | j| | _| �� d S )Nz sending %s)r� r� r^ r� r� )rW rw r r r rv s zdispatcher_with_send.send)NN)r r r rY r� r� r8 rv r r r r r� � s r� c C s� t �� \} }}g }|s td��|rL|�|jjj|jjjt|j �f� |j }q ~|d \}}}d� dd� |D ��}|||f| ||fS )Nztraceback does not exist���r[ c S s g | ] }d | �qS )z [%s|%s|%s]r )�.0�xr r r � <listcomp>& s z%compact_traceback.<locals>.<listcomp>) r| �exc_info�AssertionErrorr9 �tb_frame�f_code� co_filename�co_namer~ � tb_lineno�tb_nextr_ )r� r� �tbr� �fileZfunction�liner� r r r r� s �r� c C s� | d kr t } t| �� �D ]n}z |�� W q tk r` } z|jd tkrJn|sP� W 5 d }~X Y q tk rt � Y q |s�� Y qX q| �� d S r' ) r4 r5 �valuesr{ r- r. r r �clear)r? Z ignore_allr� r r r � close_all) s r� �posixc @ sN e Zd Zdd� Zdd� Zdd� Zdd� Zdd d �ZeZeZ d d � Z dd� Z d S )� file_wrapperc C s t �|�| _d S r )r �duprB �rW rB r r r rY N s zfile_wrapper.__init__c C s* | j dkr tjd| t| d� | �� d S )Nr zunclosed file %r)�source)rB �warnings�warn�ResourceWarningr{ ri r r r �__del__Q s �zfile_wrapper.__del__c G s t j| jf|�� S r )r r" rB �rW r. r r r rz W s zfile_wrapper.recvc G s t j| jf|�� S r )r r$ rB r� r r r rv Z s zfile_wrapper.sendNc C s( |t jkr |t jkr |s dS td��d S )Nr z-Only asyncore specific behaviour implemented.)rV rg r� �NotImplementedError)rW �levelZoptnameZbuflenr r r rh ] s ��zfile_wrapper.getsockoptc C s( | j dk rd S | j }d| _ t�|� d S )Nr r� )rB r r{ r� r r r r{ h s zfile_wrapper.closec C s | j S r )rB ri r r r re o s zfile_wrapper.fileno)N) r r r rY r� rz rv rh r" r$ r{ re r r r r r� I s r� c @ s e Zd Zddd�Zdd� ZdS )�file_dispatcherNc C sP t �| d |� d| _z |�� }W n tk r4 Y nX | �|� t�|d� d S )NTF)rL rY rS re �AttributeError�set_filer � set_blocking)rW rB r? r r r rY t s zfile_dispatcher.__init__c C s" t |�| _| j�� | _| �� d S r )r� rV re rP rb r� r r r r� s zfile_dispatcher.set_file)N)r r r rY r� r r r r r� r s r� )r3 N)r3 N)rG FNN)NF).�__doc__r( rV r| r; r� r �errnor r r r r r r r r r r r r r� r/ r4 r r � Exceptionr �KeyboardInterrupt� SystemExitr r" r$ r& r2 rC rF Zpoll3rK rL r� r� r� rn r� r� r r r r �<module> sD < � ' * )
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