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a a�h� � @ sR d Z ddlZddlmZ ddlmZmZmZ G dd� de�Z d dd �Z dd gZ dS ) z*0MQ polling related functions and classes.� N)�zmq_poll� )�POLLIN�POLLOUT�POLLERRc @ sZ e Zd ZdZdZi Zdd� Zdd� Zee B fdd�Z ee B fd d �Z d d � Z dd d�Z dS )�Pollerz>A stateful poll interface that mirrors Python's built-in poll.Nc C s g | _ i | _d S �N)�sockets�_map)�self� r �~/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/zmq/sugar/poll.py�__init__ s zPoller.__init__c C s || j v S r )r )r �socketr r r � __contains__ s zPoller.__contains__c C sh |rN|| j v r(| j | }||f| j|< qdt| j�}| j�||f� || j |< n|| j v rd| �|� n dS )a p.register(socket, flags=POLLIN|POLLOUT) Register a 0MQ socket or native fd for I/O monitoring. register(s,0) is equivalent to unregister(s). Parameters ---------- socket : zmq.Socket or native socket A zmq.Socket or any Python object having a ``fileno()`` method that returns a valid file descriptor. flags : int The events to watch for. Can be POLLIN, POLLOUT or POLLIN|POLLOUT. If `flags=0`, socket will be unregistered. N)r r �len�append� unregister)r r �flags�idxr r r �register s zPoller.registerc C s | � ||� dS )zCModify the flags for an already registered 0MQ socket or native fd.N)r )r r r r r r �modify; s z Poller.modifyc C sF | j �|�}| j�|� | j|d� D ]\}}| j | d8 < q&dS )z�Remove a 0MQ socket or native fd for I/O monitoring. Parameters ---------- socket : Socket The socket instance to stop polling. Nr )r �popr )r r r r r r r r ? s zPoller.unregisterc C s6 |du s|dk rd}nt |t�r(t|�}t| j|d�S )a� Poll the registered 0MQ or native fds for I/O. If there are currently events ready to be processed, this function will return immediately. Otherwise, this function will return as soon the first event is available or after timeout milliseconds have elapsed. Parameters ---------- timeout : float, int The timeout in milliseconds. If None, no `timeout` (infinite). This is in milliseconds to be compatible with ``select.poll()``. Returns ------- events : list of tuples The list of events that are ready to be processed. This is a list of tuples of the form ``(socket, event_mask)``, where the 0MQ Socket or integer fd is the first element, and the poll event mask (POLLIN, POLLOUT) is the second. It is common to call ``events = dict(poller.poll())``, which turns the list of tuples into a mapping of ``socket : event_mask``. Nr ���)�timeout)� isinstance�float�intr r )r r r r r �pollM s z Poller.poll)N)�__name__� __module__� __qualname__�__doc__r r r r r r r r r r r r r r r s r c C s� |du r d}t |d �}|dk r$d}g }t| | | �D ]F}d}|| v rP|tO }||v r`|tO }||v rp|tO }|�||f� q8t||�}g g g } }}|D ]>\}}|t@ r�| �|� |t@ r�|�|� |t@ r�|�|� q�| ||fS )a\ select(rlist, wlist, xlist, timeout=None) -> (rlist, wlist, xlist) Return the result of poll as a lists of sockets ready for r/w/exception. This has the same interface as Python's built-in ``select.select()`` function. Parameters ---------- timeout : float, int, optional The timeout in seconds. If None, no timeout (infinite). This is in seconds to be compatible with ``select.select()``. rlist : list of sockets/FDs sockets/FDs to be polled for read events wlist : list of sockets/FDs sockets/FDs to be polled for write events xlist : list of sockets/FDs sockets/FDs to be polled for error events Returns ------- (rlist, wlist, xlist) : tuple of lists of sockets (length 3) Lists correspond to sockets available for read/write/error events respectively. Nr g @�@r )r �setr r r r r )ZrlistZwlistZxlistr r �sr Zreturn_socketsr r r �selectj s2 r% )N) r" ZzmqZ zmq.backendr � constantsr r r �objectr r% �__all__r r r r �<module> s Z 8
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