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t � �dS )zlClose the watcher.
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Nr r� r r r r% V s zAbstractChildWatcher.closec C s
t � �dS )z�Return ``True`` if the watcher is active and is used by the event loop.
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is_runningr� r r r r\ � s zBaseChildWatcher.is_activec C s
t � �d S r r )r � expected_pidr r r � _do_waitpid� s z BaseChildWatcher._do_waitpidc C s
t � �d S r r r� r r r �_do_waitpid_all� s z BaseChildWatcher._do_waitpid_allc C sf | j d k r$|d kr$| jr$t�dt� | j d k r<| j �tj� || _ |d k rb|�tj| j � | �
� d S )NzCA loop is being detached from a child watcher with pending handlers) r� r& r* r+ �RuntimeWarningr) r9 �SIGCHLDrH � _sig_chldr) r r r r r � s �
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(O(1) each time a child terminates).
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c C s i | _ d | _d S r )r& �_saved_sighandlerr� r r r r z s z MultiLoopChildWatcher.__init__c C s
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z$_UnixDefaultEventLoopPolicy.__init__c C sH t j�8 | jd kr:t� | _tt�� tj�r:| j�| j j
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�z)_UnixDefaultEventLoopPolicy._init_watcherc s6 t � �|� | jdk r2tt�� tj�r2| j�|� dS )z�Set the event loop.
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�z*_UnixDefaultEventLoopPolicy.set_event_loopc C s | j dkr| �� | j S )z~Get the watcher for child processes.
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z-_UnixDefaultEventLoopPolicy.get_child_watcherc C s | j dk r| j �� || _ dS )z$Set the watcher for child processes.N)rU r% )r rj r r r �set_child_watchere s
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