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asyncore.cpython-310.pyc
o ���h,O � @ sx d Z ddlZddlZddlZddlZddlZddlZddlmZm Z m Z m Z m Z m Z mZmZmZmZmZmZmZ ejdedd� ee e eeeeh�Zze W n eyY i ZY nw dd� ZG d d � d e �Z e e e fZ d d � Z!d d� Z"dd� Z#dd� Z$d)dd�Z%d)dd�Z&e&Z'd*dd�Z(G d d � d �Z)G d d � d e)�Z*d d!� Z+d+d"d#�Z,ej-d$kr�G d%d&� d&�Z.G d'd(� d(e)�Z/dS 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� errorcodezlThe asyncore module is deprecated and will be removed in Python 3.12. The recommended replacement is asyncio� )� stacklevelc C sB zt �| �W S tttfy | tv rt| Y S d| Y S w )NzUnknown error %s)�os�strerror� ValueError� OverflowError� NameErrorr )�err� r �//opt/alt/python310/lib64/python3.10/asyncore.py� _strerrorK s �r c @ s e Zd ZdS )�ExitNowN)�__name__� __module__� __qualname__r r r r r S s r c C �2 z| � � W d S ty � | �� Y d S �N)�handle_read_event�_reraised_exceptions� handle_error��objr r r �readX � r% c C r r )�handle_write_eventr! r" r# r r r �write` r& r( c C r r )�handle_expt_eventr! r" r# r r r � _exceptionh r& r* c C s� z0|t j@ r | �� |t j@ r| �� |t j@ r | �� |t jt jB t j B @ r.| � � W d S W d S t yX } z |j t vrB| �� n | � � W Y d }~d S W Y d }~d S d }~w ty_ � | �� Y d S r )�select�POLLINr �POLLOUTr' �POLLPRIr) ZPOLLHUPZPOLLERRZPOLLNVAL� handle_close�OSError�errno� _DISCONNECTEDr" r! )r$ �flags�er r r � readwritep s( � �� r5 � c C s6 |d u rt }|r�g }g }g }t|�� �D ]&\}}|�� }|�� }|r'|�|� |r1|js1|�|� |s5|r:|�|� qg | krJ| krJ|krSn nt�| � d S t � |||| �\}}}|D ]}|� |�}|d u rlq`t |� q`|D ]}|� |�}|d u rqst |� qs|D ]}|� |�}|d u r�q�t |� q�d S d S r )� socket_map�list�items�readable�writable�append� accepting�time�sleepr+ �getr% r( r* ) �timeout�map�r�wr4 �fdr$ Zis_rZis_wr r r �poll� sF �" � rF c C s� |d u rt }| d urt| d �} t�� }|r^t|�� �D ]&\}}d}|�� r.|tjtjB O }|� � r:|j s:|tj O }|rB|� ||� q |�| �}|D ]\}}|� |�}|d u rXqJt||� qJd S d S )Ni� r )r7 �intr+ rF r8 r9 r: r, r. r; r= r- �registerr@ r5 )rA rB ZpollsterrE r$ r3 rC r r r �poll2� s. � � rI � >@Fc C s� |d u rt }|rttd�rt}nt}|d u r#|r!|| |� |sd S d S |r:|dkr>|| |� |d }|r<|dks)d S d S d S d S )NrF r � )r7 �hasattrr+ rI rF )rA Zuse_pollrB �countZpoll_funr r r �loop� s � �rN c @ s2 e Zd ZdZdZdZdZdZdZe dh�Z dAdd�Z dd� Z dBdd �Z dBd d �Zejejfd d �ZdBdd�Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d!� Z d"d#� Z d$d%� Z dCd'd(�Z d)d*� Z d+d,� Z!d-d.� Z"d/d0� Z#d1d2� Z$d3d4� Z%d5d6� Z&d7d8� Z'd9d:� Z(d;d<� Z)d=d>� Z*d?d@� Z+dS )D� dispatcherFN�warningc C s� |d u rt | _n|| _d | _|rK|�d� | �||� d| _z|�� | _W d S tyJ } z|j t t fv r9d| _n| � |� � W Y d }~d S d }~ww d | _ d S )NFT)r7 �_map�_fileno� setblocking� set_socket� connectedZ getpeername�addrr0 r1 r r � del_channel�socket)�self�sockrB r r r r �__init__� s& ��� zdispatcher.__init__c C s� | j jd | j j g}| jr| jr|�d� n| jr |�d� | jd ur@z |�d| j � W n ty? |�t| j�� Y nw dd� |�t | �f S )N�.Z listeningrU z%s:%dz <%s at %#x>� ) � __class__r r r= rV r< rU � TypeError�repr�join�id)rY Zstatusr r r �__repr__ s �zdispatcher.__repr__c C s |d u r| j }| || j< d S r )rQ rR )rY rB r r r � add_channel s zdispatcher.add_channelc C s, | j }|d u r | j}||v r||= d | _ d S r )rR rQ )rY rB rE r r r rW s zdispatcher.del_channelc C s. ||f| _ t�||�}|�d� | �|� d S �NF)Zfamily_and_typerX rS rT )rY Zfamily�typerZ r r r � create_socket s zdispatcher.create_socketc C s || _ |�� | _| �|� d S r )rX �filenorR rd �rY rZ rB r r r rT % s zdispatcher.set_socketc C sB z| j �t jt j| j �t jt j�dB � W d S ty Y d S w )NrK )rX Z setsockopt� SOL_SOCKETZ SO_REUSEADDR� getsockoptr0 �rY r r r �set_reuse_addr* s �� � �zdispatcher.set_reuse_addrc C � dS �NTr rl r r r r: ; 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rt ru rx ry r| r� r� r� r� r rw r' r) r" r� r� r� r� r� r� r/ r r r r rO � sL rO c @ s6 e Zd Zd dd�Zdd� Zdd� Zdd � Zd d � ZdS ) �dispatcher_with_sendNc C s t �| ||� d| _d S r )rO r[ � out_bufferri r r r r[ s z dispatcher_with_send.__init__c C s. d}t �| | jd d� �}| j|d � | _d S )Nr i )rO r| r� )rY Znum_sentr r r � initiate_send s z"dispatcher_with_send.initiate_sendc C s | � � d S r )r� rl r r r r� s z!dispatcher_with_send.handle_writec C s | j pt| j�S r )rU �lenr� rl r r r r; s z dispatcher_with_send.writablec C s0 | j r | �dt|� � | j| | _| �� d S )Nz sending %s)r� r� r` r� r� )rY r} r r r r| s zdispatcher_with_send.sendr� )r r r r[ r� r� r; r| r r r r r� s r� c C s� t �� \} }}g }|std��|r'|�|jjj|jjjt|j �f� |j }|s~|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�AssertionErrorr< �tb_frame�f_code� co_filename�co_namer� � tb_lineno�tb_nextra )r� r� �tbr� �fileZfunction�liner� r r r r� s �� r� c C s� | d u rt } t| �� �D ]1}z|�� W q ty/ } z|jtkr"n|s%� W Y d }~q d }~w ty6 � |s<� Y q | �� d S r ) r7 r8 �valuesr� r0 r1 r r! �clear)rB Z ignore_allr� r r r � close_all0 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 �duprE �rY rE r r r r[ U r� zfile_wrapper.__init__c C s* | j dkrtjd| t| d� | �� d S )Nr zunclosed file %r)�source)rE �warnings�warn�ResourceWarningr� rl r r r �__del__X s � zfile_wrapper.__del__c G � t j| jg|�R � S r )r r% rE �rY �argsr r r r� ^ � zfile_wrapper.recvc G r� r )r r( rE r� r r r r| a r� zfile_wrapper.sendNc C s$ |t jkr|t jkr|sdS td��)Nr z-Only asyncore specific behaviour implemented.)rX rj r� �NotImplementedError)rY �levelZoptnameZbuflenr r r rk d s �zfile_wrapper.getsockoptc C s( | j dk rd S | j }d| _ t�|� d S )Nr r� )rE r r� r� r r r r� o s zfile_wrapper.closec C s | j S r )rE rl r r r rh v s zfile_wrapper.filenor ) r r r r[ r� r� r| rk r% r( r� rh r r r r r� P s r� c @ s e Zd Zddd�Zdd� ZdS )�file_dispatcherNc C sN t �| d |� d| _z|�� }W n ty Y nw | �|� t�|d� d S )NTF)rO r[ rU rh �AttributeError�set_filer � set_blocking)rY rE rB r r r r[ { s � zfile_dispatcher.__init__c C s" t |�| _| j�� | _| �� d S r )r� rX rh rR rd r� r r r r� � s zfile_dispatcher.set_filer )r r r r[ r� r r r r r� y s r� )r6 N)rJ FNNre )0�__doc__r+ rX r� r> r� r r1 r r r r r r r r r r r r r r� �DeprecationWarningr� r2 r7 r r � Exceptionr �KeyboardInterrupt� SystemExitr! r% r( r* r5 rF rI Zpoll3rN rO r� r� r� rs r� r� r r r r �<module> sT <� � � ' * )�
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