a
    Šxdš
  ã                   @   s>   d Z ddlmZ ddlmZ dgZG dd„ dƒZe e¡ dS )zSynchronization primitives.é   )ÚThenable)ÚpromiseÚbarrierc                   @   sX   e Zd ZdZddd„Zdd„ Zdd„ Zd	d
„ Zdd„ Zdd„ Z	ddd„Z
dd„ ZeZdS )r   a…  Barrier.

    Synchronization primitive to call a callback after a list
    of promises have been fulfilled.

    Example:

    .. code-block:: python

        # Request supports the .then() method.
        p1 = http.Request('http://a')
        p2 = http.Request('http://b')
        p3 = http.Request('http://c')
        requests = [p1, p2, p3]

        def all_done():
            pass  # all requests complete

        b = barrier(requests).then(all_done)

        # oops, we forgot we want another request
        b.add(http.Request('http://d'))

    Note that you cannot add new promises to a barrier after
    the barrier is fulfilled.
    Nc                    s¢   t ƒ ˆ _|pdˆ _|pi ˆ _dˆ _|p(dˆ _ˆ jsL|rL| ¡ }|turL|ˆ _d ˆ _ˆ _	d ˆ _
dˆ _dˆ _‡ fdd„|pzg D ƒ t|pŠˆ jƒˆ _|ržˆ  |¡ d S )N© é    Fc                    s   g | ]}ˆ   |¡‘qS r   )Ú
add_noincr)Ú.0Úp©Úselfr   úL/var/www/html/Ranjet/env/lib/python3.9/site-packages/vine/synchronization.pyÚ
<listcomp>7   ó    z$barrier.__init__.<locals>.<listcomp>)r   r	   ÚargsÚkwargsÚ_valueÚsizeÚ__len__ÚNotImplementedÚreadyÚfailedÚreasonÚ	cancelledÚ	finalizedÚboolÚthen)r   Úpromisesr   r   Úcallbackr   Úplenr   r
   r   Ú__init__$   s"    



zbarrier.__init__c                 O   sJ   | j sF| jsF|  jd7  _| jrF| j| jkrFd| _ | j| ji | j¤Ž d S )Nr   T)r   r   r   r   r   r	   r   r   ©r   r   r   r   r   r   Ú__call__<   s
    zbarrier.__call__c                 C   s0   | j s&| j| jkr&| j| ji | j¤Ž d| _ d S ©NT)r   r   r   r	   r   r   r
   r   r   r   ÚfinalizeC   s    zbarrier.finalizec                 C   s   d| _ | j ¡  d S r"   )r   r	   Úcancelr
   r   r   r   r$   H   s    zbarrier.cancelc                 C   s"   | j s| jrtdƒ‚| | ¡ d S )Nz"Cannot add promise to full barrier)r   r   Ú
ValueErrorr   ©r   r	   r   r   r   r   L   s    zbarrier.add_noincrc                 C   s"   | j s|  |¡ |  jd7  _d S )Nr   )r   r   r   r&   r   r   r   ÚaddR   s    
zbarrier.addc                 C   s   | j  ||¡ d S ©N)r	   r   )r   r   Zerrbackr   r   r   r   W   s    zbarrier.thenc                 O   s   | j s| jj|i |¤Ž d S r(   )r   r	   Úthrowr    r   r   r   r)   Z   s    zbarrier.throw)NNNNN)N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r!   r#   r$   r   r'   r   r)   Zthrow1r   r   r   r   r      s     ÿ

N)r-   Zabstractr   r   r   Ú__all__r   Úregisterr   r   r   r   Ú<module>   s
   X