grthtrhthjhtyjytjytkergtrhtrjytjerhrfh4:24 29/09/2026o |jPL@sdZddlmZmZddlmZddlmZddlZddl Z ddl Z dZ dZ dd Z ed gd Zd e_e jd krIdej_dej_dej_dej_GdddeZGdddedZGdddeZGdddeZGdddeZee drGdddeZee d rGd!d"d"eZee d#rGd$d%d%eZee d&rGd'd(d(eZd)d*Zed&reZdSed reZdSed#reZdSedreZdSeZdS)+z|Selectors module. This module allows high-level and efficient I/O multiplexing, built upon the `select` module primitives. )ABCMetaabstractmethod) namedtuple)MappingNc Cs`t|tr|}nzt|}Wntttfy"td|dw|dkr.td||S)zReturn a file descriptor from a file object. Parameters: fileobj -- file object or file descriptor Returns: corresponding file descriptor Raises: ValueError if the object is invalid zInvalid file object: {!r}NrzInvalid file descriptor: {}) isinstanceintfilenoAttributeError TypeError ValueErrorformat)fileobjfdr0/opt/alt/python310/lib64/python3.10/selectors.py_fileobj_to_fds r SelectorKey)rreventsdatazSelectorKey(fileobj, fd, events, data) Object used to associate a file object to its backing file descriptor, selected event mask, and attached data. )zFile object registered.zUnderlying file descriptor.z3Events that must be waited for on this file object.zzOptional opaque data associated to this file object. For example, this could be used to store a per-client session ID.c@s0eZdZdZddZddZddZdd Zd S) _SelectorMappingz)Mapping of file objects to selector keys.cCs ||_dSN) _selector)selfselectorrrr__init__@ z_SelectorMapping.__init__cC t|jjSr)lenr _fd_to_keyrrrr__len__C z_SelectorMapping.__len__cCs:z |j|}|jj|WStytd|dwN{!r} is not registered)r_fileobj_lookupr"KeyErrorr)rrrrrr __getitem__Fs   z_SelectorMapping.__getitem__cCr r)iterrr"r#rrr__iter__Mr%z_SelectorMapping.__iter__N)__name__ __module__ __qualname____doc__rr$r*r,rrrrr=s  rc@sneZdZdZedddZeddZdddZedd d Zd d Z d dZ eddZ ddZ ddZ dS) 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. An arbitrary object can be attached to the file object, which can be used for example to store context information, a callback, etc. A selector can use various implementations (select(), poll(), epoll()...) depending on the platform. The default `Selector` class uses the most efficient implementation on the current platform. NcCt)a3Register a file object. 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: ValueError if events is invalid KeyError if fileobj is already registered OSError if fileobj is closed or otherwise is unacceptable to the underlying system call (if a system call is made) Note: OSError may or may not be raised NotImplementedErrorrrrrrrrregister`szBaseSelector.registercCr2)ajUnregister a file object. 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) r3)rrrrr unregisterwzBaseSelector.unregistercCs||||||S)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 )r7r6r5rrrmodifys zBaseSelector.modifycCr2)aqPerform the actual selection, until some monitored file objects are ready or a timeout expires. Parameters: timeout -- if timeout > 0, this specifies the maximum wait time, in seconds if timeout <= 0, the select() call won't block, and will report the currently ready file objects if timeout is None, select() will block until a monitored file object becomes ready Returns: list of (key, events) for ready file objects `events` is a bitwise mask of EVENT_READ|EVENT_WRITE r3)rtimeoutrrrselectr8zBaseSelector.selectcCsdS)zmClose the selector. This must be called to make sure that any underlying resource is freed. Nrr#rrrcloseszBaseSelector.closecCsB|}|dur tdz||WSty td|dw)zzReturn the key associated to a registered file object. Returns: SelectorKey for this file object NzSelector is closedr')get_map RuntimeErrorr)r)rrmappingrrrget_keys  zBaseSelector.get_keycCr2)z2Return a mapping of file objects to selector keys.r3r#rrrr=szBaseSelector.get_mapcCs|Srrr#rrr __enter__szBaseSelector.__enter__cGs |dSr)r<)rargsrrr__exit__r%zBaseSelector.__exit__r)r-r.r/r0rr6r7r9r;r<r@r=rArCrrrrr1Qs      r1) metaclassc@sTeZdZdZddZddZdddZd d Zdd d Zd dZ ddZ ddZ dS)_BaseSelectorImplzBase selector implementation.cCsi|_t||_dSr)r"r_mapr#rrrrsz_BaseSelectorImpl.__init__cCsDzt|WSty!|jD]}|j|ur|jYSqw)alReturn a file descriptor from a file object. This wraps _fileobj_to_fd() to do an exhaustive search in case the object is invalid but we still have it in our map. This is used by unregister() so we can unregister an object that was previously registered even if it is closed. It is also used by _SelectorMapping. )rr r"valuesrrrrkeyrrrr(s   z!_BaseSelectorImpl._fileobj_lookupNcCsb|r |ttB@rtd|t|||||}|j|jvr)td||j||j|j<|S)NzInvalid events: {!r}z"{!r} (FD {}) is already registered) EVENT_READ EVENT_WRITEr rrr(rr"r)rrrrrIrrrr6s   z_BaseSelectorImpl.registercCs8z |j||}W|Stytd|dwr&)r"popr(r)rrHrrrr7s  z_BaseSelectorImpl.unregistercCsz |j||}Wntytd|dw||jkr-||||||}|S||jkr>|j|d}||j|j <|S)Nr')r) r"r(r)rrr7r6r_replacerrLrrrr9s     z_BaseSelectorImpl.modifycCs|jd|_dSr)r"clearrFr#rrrr< s  z_BaseSelectorImpl.closecCs|jSr)rFr#rrrr=sz_BaseSelectorImpl.get_mapcCs"z|j|WStyYdSw)zReturn the key associated to a given file descriptor. Parameters: fd -- file descriptor Returns: corresponding key, or None if not found N)r"r))rrrrr _key_from_fds   z_BaseSelectorImpl._key_from_fdr) r-r.r/r0rr(r6r7r9r<r=rPrrrrrEs   rEcs`eZdZdZfddZdfdd ZfddZejd kr$dd d Z ne j Z dd d Z Z S)SelectSelectorzSelect-based selector.cstt|_t|_dSr)superrset_readers_writersr# __class__rrr&s  zSelectSelector.__init__Ncs@t|||}|t@r|j|j|t@r|j|j|Sr)rRr6rJrTaddrrKrUrLrVrrr6+s zSelectSelector.registercs,t|}|j|j|j|j|Sr)rRr7rTdiscardrrUrHrVrrr73s zSelectSelector.unregisterZwin32cCs$t||||\}}}|||gfSr)r;)rrw_r:xrrr_select:szSelectSelector._selectc Cs|durdnt|d}g}z||j|jg|\}}}Wn ty'|YSwt|}t|}||BD]%}d}||vr@|tO}||vrH|tO}||}|rY| |||j @fq4|SNr) maxr^rTrUInterruptedErrorrSrJrKrPappendr) rr:readyrZr[r\rrrIrrrr;@s(   zSelectSelector.selectr) r-r.r/r0rr6r7sysplatformr^r; __classcell__rrrVrrQ#s    rQcs^eZdZdZdZdZdZfddZd fdd ZfddZ d fd d Z d d d Z Z S)_PollLikeSelectorzsP   ~T3 Z  . M