FüƒaîKã@s*dZddlmZmZddlmZmZddlZddlZddl Z d)Z d*Z dd„Z edd d d d gƒZ d e _e jd+krÑde j_de j_de j_de j_Gdd„deƒZGdd„ddeƒZGdd„deƒZGdd„deƒZeedƒrQGdd„deƒZeed ƒrvGd!d"„d"eƒZeed#ƒr›Gd$d%„d%eƒZeed&ƒrÀGd'd(„d(eƒZd(eƒkrØeZnNd"eƒkrðeZn6d%eƒkreZndeƒkr eZneZdS),z|Selectors module. This module allows high-level and efficient I/O multiplexing, built upon the `select` module primitives. é)ÚABCMetaÚabstractmethod)Ú namedtupleÚMappingNéc Cs‰t|tƒr|}nLyt|jƒƒ}Wn3tttfk rctdj|ƒƒd‚YnX|dkr…tdj|ƒƒ‚|S)zÕReturn a file descriptor from a file object. Parameters: fileobj -- file object or file descriptor Returns: corresponding file descriptor Raises: ValueError if the object is invalid zInvalid file object: {!r}NrzInvalid file descriptor: {})Ú isinstanceÚintÚfilenoÚAttributeErrorÚ TypeErrorÚ ValueErrorÚformat)ÚfileobjÚfd©rú/usr/lib/python3.5/selectors.pyÚ_fileobj_to_fds    rÚ SelectorKeyrrÚeventsÚdatazŸSelectorKey(fileobj, fd, events, data) Object used to associate a file object to its backing file descriptor, selected event mask, and attached data. éézFile object registered.zUnderlying file descriptor.z3Events that must be waited for on this file object.zzOptional opaque data associated to this file object. For example, this could be used to store a per-client session ID.c@sFeZdZdZdd„Zdd„Zdd„Zdd „Zd S) Ú_SelectorMappingz)Mapping of file objects to selector keys.cCs ||_dS)N)Ú _selector)ÚselfZselectorrrrÚ__init__>sz_SelectorMapping.__init__cCst|jjƒS)N)ÚlenrÚ _fd_to_key)rrrrÚ__len__Asz_SelectorMapping.__len__c CsUy$|jj|ƒ}|jj|SWn*tk rPtdj|ƒƒd‚YnXdS)Nz{!r} is not registered)rÚ_fileobj_lookuprÚKeyErrorr )rrrrrrÚ __getitem__Ds  z_SelectorMapping.__getitem__cCst|jjƒS)N)Úiterrr)rrrrÚ__iter__Ksz_SelectorMapping.__iter__N)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrr!r#rrrrr;s    rc@s£eZdZdZeddd„ƒZedd„ƒZddd„Zedd d „ƒZd d „Z d d„Z edd„ƒZ dd„Z dd„Z dS)Ú BaseSelectora-Selector abstract base class. A selector supports registering file objects to be monitored for specific I/O events. A file object is a file descriptor or any object with a `fileno()` method. 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Parameters: fileobj -- file object or file descriptor Returns: SelectorKey instance Raises: KeyError if fileobj is not registered Note: If fileobj is registered but has since been closed this does *not* raise OSError (even if the wrapped syscall does) N)r))rrrrrÚ unregisteruszBaseSelector.unregistercCs |j|ƒ|j|||ƒS)ayChange a registered file object monitored events or attached data. Parameters: fileobj -- file object or file descriptor events -- events to monitor (bitwise mask of EVENT_READ|EVENT_WRITE) data -- attached data Returns: SelectorKey instance Raises: Anything that unregister() or register() raises )r+r*)rrrrrrrÚmodifyˆs zBaseSelector.modifycCs t‚dS)aqPerform the actual selection, until some monitored file objects are ready or a timeout expires. 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N)rr rÚvaluesrr)rrÚkeyrrrrÖs   z!_BaseSelectorImpl._fileobj_lookupNcCsŠ| s|ttB@r+tdj|ƒƒ‚t||j|ƒ||ƒ}|j|jkrvtdj||jƒƒ‚||j|j<|S)NzInvalid events: {!r}z"{!r} (FD {}) is already registered) Ú EVENT_READÚ EVENT_WRITEr r rrrrr )rrrrr;rrrr*és z_BaseSelectorImpl.registerc CsPy|jj|j|ƒƒ}Wn*tk rKtdj|ƒƒd‚YnX|S)Nz{!r} is not registered)rÚpoprr r )rrr;rrrr+ös  z_BaseSelectorImpl.unregisterc Cs°y|j|j|ƒ}Wn*tk rFtdj|ƒƒd‚YnX||jkr{|j|ƒ|j|||ƒ}n1||jkr¬|jd|ƒ}||j|j <|S)Nz{!r} is not registeredr) rrr r rr+r*rÚ_replacer)rrrrr;rrrr,ýs  z_BaseSelectorImpl.modifycCs|jjƒd|_dS)N)rÚclearr9)rrrrr/ s z_BaseSelectorImpl.closecCs|jS)N)r9)rrrrr0sz_BaseSelectorImpl.get_mapc Cs,y|j|SWntk r'dSYnXdS)z³Return the key associated to a given file descriptor. 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