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selectors.cpython-37.opt-2.pyc
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For example, this could be used to store a per-client session ID.c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) �_SelectorMappingc C s || _ d S )N)� _selector)�selfZselectorr r r �__init__? s z_SelectorMapping.__init__c C s t | jj�S )N)�lenr � _fd_to_key)r r r r �__len__B s z_SelectorMapping.__len__c C sB y| j �|�}| j j| S tk r< td�|��d �Y nX d S )Nz{!r} is not registered)r �_fileobj_lookupr �KeyErrorr )r r r r r r � __getitem__E s z _SelectorMapping.__getitem__c C s t | jj�S )N)�iterr r )r r r r �__iter__L s z_SelectorMapping.__iter__N)�__name__� __module__� __qualname__r r r" r$ r r r r r < s r c @ sj e Zd Zeddd��Zedd� �Zddd�Zeddd ��Zd d � Zd d � Z edd� �Z dd� Z dd� Z dS )� BaseSelectorNc C s t �d S )N)�NotImplementedError)r r r r r r r �register_ s zBaseSelector.registerc C s t �d S )N)r) )r r r r r � unregisterv s zBaseSelector.unregisterc C s | � |� | �|||�S )N)r+ r* )r r r r r r r �modify� s zBaseSelector.modifyc C s t �d S )N)r) )r �timeoutr r r �select� s zBaseSelector.selectc C s d S )Nr )r r r r �close� s zBaseSelector.closec C sJ | � � }|d krtd��y|| S tk rD td�|��d �Y nX d S )NzSelector is closedz{!r} is not registered)�get_map� RuntimeErrorr! r )r r �mappingr r r �get_key� s zBaseSelector.get_keyc C s t �d S )N)r) )r r r r r0 � s zBaseSelector.get_mapc C s | S )Nr )r r r r � __enter__� s zBaseSelector.__enter__c G s | � � d S )N)r/ )r �argsr r r �__exit__� s zBaseSelector.__exit__)N)N)N) r% r& r' r r* r+ r, r. r/ r3 r0 r4 r6 r r r r r( P s r( )� metaclassc @ sP e Zd Zdd� Zdd� Zddd�Zdd � Zdd d �Zd d � Zdd� Z dd� Z dS )�_BaseSelectorImplc C s i | _ t| �| _d S )N)r r �_map)r r r r r � s z_BaseSelectorImpl.__init__c C sH yt |�S tk rB x"| j�� D ]}|j|kr$|jS q$W � Y nX d S )N)r r r �valuesr r )r r �keyr r r r � s z!_BaseSelectorImpl._fileobj_lookupNc C sb |r|t tB @ r td�|���t|| �|�||�}|j| jkrRtd�||j���|| j|j< |S )NzInvalid events: {!r}z"{!r} (FD {}) is already registered) � EVENT_READ� EVENT_WRITEr r r r r r r! )r r r r r; r r r r* � s z_BaseSelectorImpl.registerc C s@ y| j �| �|��}W n$ tk r: td�|��d �Y nX |S )Nz{!r} is not registered)r �popr r! r )r r r; r r r r+ � s z _BaseSelectorImpl.unregisterc C s� y| j | �|� }W n$ tk r8 td�|��d �Y nX ||jkr^| �|� | �|||�}n"||jkr�|j|d�}|| j |j < |S )Nz{!r} is not registered)r ) r r r! r r r+ r* r �_replacer )r r r r r; r r r r, � s z_BaseSelectorImpl.modifyc C s | j �� d | _d S )N)r �clearr9 )r r r r r/ s z_BaseSelectorImpl.closec C s | j S )N)r9 )r r r r r0 s z_BaseSelectorImpl.get_mapc C s$ y | j | S tk r d S X d S )N)r r! )r r r r r � _key_from_fd s z _BaseSelectorImpl._key_from_fd)N)N) r% r& r' r r r* r+ r, r/ r0 rA r r r r r8 � s r8 c s\ e Zd Z� fdd�Zd � fdd� Z� fdd�ZejdkrDdd d �Zne j Zdd d �Z � Z S )�SelectSelectorc s t � �� t� | _t� | _d S )N)�superr �set�_readers�_writers)r )� __class__r r r % s zSelectSelector.__init__Nc s@ t � �|||�}|t@ r&| j�|j� |t@ r<| j�|j� |S )N)rC r* r< rE �addr r= rF )r r r r r; )rG r r r* * s zSelectSelector.registerc s, t � �|�}| j�|j� | j�|j� |S )N)rC r+ rE �discardr rF )r r r; )rG r r r+ 2 s zSelectSelector.unregister�win32c C s$ t � ||||�\}}}||| g fS )N)r. )r �r�w�_r- �xr r r �_select9 s zSelectSelector._selectc C s� |d kr d nt |d�}g }y | �| j| jg |�\}}}W n tk rL |S X t|�}t|�}xV||B D ]J}d}||kr�|tO }||kr�|tO }| �|�}|rh|� |||j @ f� qhW |S )Nr ) �maxrO rE rF �InterruptedErrorrD r< r= rA �appendr ) r r- �readyrK rL rM r r r; r r r r. ? s$ zSelectSelector.select)N)N)N) r% r& r' r r* r+ �sys�platformrO r. � __classcell__r r )rG r rB " s rB c sZ e Zd ZdZdZdZ� fdd�Zd � fdd� Z� fdd�Zd � fdd � Z dd d �Z � Z S )�_PollLikeSelectorNc s t � �� | �� | _d S )N)rC r � _selector_clsr )r )rG r r r [ s z_PollLikeSelector.__init__c sl t � �|||�}d}|t@ r&|| jO }|t@ r8|| jO }y| j�|j|� W n t � �|� � Y nX |S )Nr ) rC r* r< � _EVENT_READr= � _EVENT_WRITEr r r+ )r r r r r; Z poller_events)rG r r r* _ s z_PollLikeSelector.registerc s8 t � �|�}y| j�|j� W n tk r2 Y nX |S )N)rC r+ r r �OSError)r r r; )rG r r r+ m s z _PollLikeSelector.unregisterc s� y| j | �|� }W n$ tk r8 t|�d��d �Y nX d}||jkr�d}|t@ r^|| jO }|t@ rp|| jO }y| j� |j |� W n t � � |� � Y nX d}||j kr�d}|r�|j||d�}|| j |j < |S )Nz is not registeredFr T)r r )r r r! r r< rY r= rZ r r, r rC r+ r r? )r r r r r; ZchangedZselector_events)rG r r r, w s. z_PollLikeSelector.modifyc C s� |d krd }n |dkr d}nt �|d �}g }y| j�|�}W n tk rR |S X x^|D ]V\}}d}|| j @ rz|tO }|| j @ r�|tO }| � |�}|rZ|� |||j @ f� qZW |S )Nr g @�@) �math�ceilr �pollrQ rY r= rZ r< rA rR r )r r- rS � fd_event_listr �eventr r; r r r r. � s( z_PollLikeSelector.select)N)N)N) r% r& r' rX rY rZ r r* r+ r, r. rV r r )rG r rW U s rW r^ c @ s e Zd ZejZejZejZ dS )� PollSelectorN) r% r& r' r. r^ rX �POLLINrY �POLLOUTrZ r r r r ra � s ra �epollc s@ e Zd ZejZejZejZ dd� Z ddd�Z� fdd�Z � Z S ) � EpollSelectorc C s | j �� S )N)r r )r r r r r � s zEpollSelector.filenoNc C s� |d krd}n |dkr d}nt �|d �d }tt| j�d�}g }y| j�||�}W n tk rh |S X x^|D ]V\}}d}|tj @ r�|t O }|tj @ r�|t O }| � |�}|rp|�|||j@ f� qpW |S )N���r g @�@g����MbP?r )r\ r] rP r r r r^ rQ r. �EPOLLINr= �EPOLLOUTr< rA rR r ) r r- �max_evrS r_ r r` r r; r r r r. � s* zEpollSelector.selectc s | j �� t� �� d S )N)r r/ rC )r )rG r r r/ � s zEpollSelector.close)N) r% r& r' r. rd rX rg rY rh rZ r r/ rV r r )rG r re � s re �devpollc s6 e Zd ZejZejZejZ dd� Z � fdd�Z � Z S )�DevpollSelectorc C s | j �� S )N)r r )r r r r r � s zDevpollSelector.filenoc s | j �� t� �� d S )N)r r/ rC )r )rG r r r/ � s zDevpollSelector.close) r% r& r' r. rj rX rb rY rc rZ r r/ rV r r )rG r rk � s rk �kqueuec sT e Zd Z� fdd�Zdd� Zd� fdd� Z� fdd �Zdd d �Z� fd d �Z� Z S )�KqueueSelectorc s t � �� t�� | _d S )N)rC r r. rl r )r )rG r r r � s zKqueueSelector.__init__c C s | j �� S )N)r r )r r r r r s zKqueueSelector.filenoNc s� t � �|||�}y`|t@ r@t�|jtjtj�}| j� |gdd� |t @ rnt�|jtj tj�}| j� |gdd� W n t � � |� � Y nX |S )Nr ) rC r* r< r. �keventr �KQ_FILTER_READZ KQ_EV_ADDr �controlr= �KQ_FILTER_WRITEr+ )r r r r r; �kev)rG r r r* s zKqueueSelector.registerc s� t � �|�}|jt@ rVt�|jtjtj�}y| j � |gdd� W n t k rT Y nX |jt @ r�t�|jtj tj�}y| j � |gdd� W n t k r� Y nX |S )Nr )rC r+ r r< r. rn r ro Z KQ_EV_DELETEr rp r[ r= rq )r r r; rr )rG r r r+ s zKqueueSelector.unregisterc C s� |d kr d nt |d�}t| j�}g }y| j�d ||�}W n tk rL |S X xb|D ]Z}|j}|j}d}|tj krz|t O }|tj kr�|t O }| � |�} | rT|�| || j@ f� qTW |S )Nr )rP r r r rp rQ Zident�filterr. ro r< rq r= rA rR r ) r r- ri rS Zkev_listrr r �flagr r; r r r r. ) s& zKqueueSelector.selectc s | j �� t� �� d S )N)r r/ rC )r )rG r r r/ ? s zKqueueSelector.close)N)N) r% r& r' r r r* r+ r. r/ rV r r )rG r rm � s rm ) �abcr r � collectionsr Zcollections.abcr r\ r. rT r< r= r r �__doc__� version_infor r r r r r( r8 rB rW �hasattrra re rk rm �globalsZDefaultSelectorr r r r �<module> sJ ~T3Z . 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