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Edit File: base.cpython-310.pyc
o �b � � @ s U d Z ddlZddlZddlZddlmZmZ ddlmZm Z m Z ddl m Z ddl mZ ddlmZmZmZmZmZmZmZmZmZmZmZmZ ddl m Z m Z dd l m Z m!Z!m"Z"m#Z#m$Z$m%Z% dd l&m'Z(m)Z*m+Z, dd l-m.Z.m/Z/ dd l0m1Z1m2Z2m3Z3m4Z4m5Z5m6Z6m7Z7m8Z8m9Z9m:Z:m;Z;m<Z<m=Z=m>Z> dd l?m@Z@ ddlAmBZBmCZC ddlDmEZE ddlFmGZGmHZI er�ddlJmKZK ddlAmLZL eG�M� r�ddlNmOZO ndZOe e3�G dd� d��ZPe e<�G dd� d��ZQe e<�G dd� d��ZRedef ZSeeSeeTdf eeUeTf f ZVedeeUeSeeTdf eeUeTf f �ZWG d d � d �ZXe e7e8�G d d � d ��ZYed eeUeWf �ZZeedef eeTdf eeUeTf f Z[e e6e:e>�G d!d"� d"eY��Z\eG�M� �rZe e\e9� e e2�G d#d$� d$e��Z]G d%d&� d&e j^�Z_G d'd(� d(�Z`g ZaeeU ebd)< dS )*z8 Very basic functionality for a Reactor implementation. � N)�ABC�abstractmethod)�heapify�heappop�heappush)� format_stack)� FrameType) � TYPE_CHECKING�Any�Callable�Dict�List�NewType�Optional�Sequence�Set�Tuple�Union�cast)�classImplements� implementer)�abstract�defer�error�fdesc�main�threads)�ComplexResolverSimplifier� GAIResolver�SimpleResolverComplexifier)�Deferred� DeferredList)�IAddress� IConnector� IDelayedCall�IHostnameResolver� IProtocol� IReactorCore� IReactorPluggableNameResolver�IReactorPluggableResolver�IReactorThreads� IReactorTime�IReadDescriptor�IResolverSimple�IWriteDescriptor� _ISupportsExitSignalCapturing)� ClientFactory)�log�reflect)�Failure)�platform�seconds)�Client)� threadable)� ThreadPoolc @ s e Zd ZU dZdZee ed< efde de de f de e deee f d e d gdf d e d gdf d e g e f d dfd d�Zd e fdd�Zd$dd�Zde d dfdd�Zde d dfdd�Zd$dd�Zd efdd �Zd e d efd d �Zd e d efd d!�Zd efd"d#�ZdS )%� DelayedCallFN�_repr�time�func.�args�kw�cancel�resetr5 �returnc C s^ ||||f\| _ | _| _| _|| _|| _|| _d | _| _d| _ | j r-t � dd� | _ dS dS )aR @param time: Seconds from the epoch at which to call C{func}. @param func: The callable to call. @param args: The positional arguments to pass to the callable. @param kw: The keyword arguments to pass to the callable. @param cancel: A callable which will be called with this DelayedCall before cancellation. @param reset: A callable which will be called with this DelayedCall after changing this DelayedCall's scheduled execution time. The callable should adjust any necessary scheduling details to ensure this DelayedCall is invoked at the new appropriate time. @param seconds: If provided, a no-argument callable which will be used to determine the current time any time that information is needed. r � N���) r; r< r= r> �resetter� cancellerr5 � cancelled�called� delayed_time�debugr �creator)�selfr; r< r= r> r? r@ r5 � rL �7/usr/lib/python3/dist-packages/twisted/internet/base.py�__init__S s �zDelayedCall.__init__c C s | j | j S )z� Return the time at which this call will fire @return: The number of seconds after the epoch at which this call is scheduled to be made. �r; rH �rK rL rL rM �getTimev s zDelayedCall.getTimec C sH | j rtj�| jr tj�| �| � d| _ | jr t| �| _| ` | ` | ` dS )z� Unschedule this call @raise AlreadyCancelled: Raised if this call has already been unscheduled. @raise AlreadyCalled: Raised if this call has already been made. � N) rF r �AlreadyCancelledrG � AlreadyCalledrE rI �reprr: r< r= r> rP rL rL rM r? s zDelayedCall.cancel�secondsFromNowc C sX | j rtj�| jr tj�| �� | }|| jk r$d| _|| _| �| � dS || j | _dS )aY Reschedule this call for a different time @param secondsFromNow: The number of seconds from the time of the C{reset} call at which this call will be scheduled. @raise AlreadyCancelled: Raised if this call has been cancelled. @raise AlreadyCalled: Raised if this call has already been made. rB N) rF r rS rG rT r5 r; rH rD )rK rV �newTimerL rL rM r@ � s zDelayedCall.reset� secondsLaterc C sJ | j rtj�| jr tj�| j|7 _| jdk r#| �� | �| � dS dS )aQ Reschedule this call for a later time @param secondsLater: The number of seconds after the originally scheduled time for which to reschedule this call. @raise AlreadyCancelled: Raised if this call has been cancelled. @raise AlreadyCalled: Raised if this call has already been made. rB N)rF r rS rG rT rH �activate_delayrD )rK rX rL rL rM �delay� s �zDelayedCall.delayc C s | j | j7 _ d| _d S )NrB rO rP rL rL rM rY � s zDelayedCall.activate_delayc C s | j p| j S )z�Determine whether this call is still pending @return: True if this call has not yet been made or cancelled, False otherwise. )rF rG rP rL rL rM �active� s zDelayedCall.active�otherc C s t |t�r | j|jkS tS )z� Implement C{<=} operator between two L{DelayedCall} instances. Comparison is based on the C{time} attribute (unadjusted by the delayed time). �� isinstancer9 r; �NotImplemented�rK r\ rL rL rM �__le__� � zDelayedCall.__le__c C s t |t�r | j|jk S tS )z� Implement C{<} operator between two L{DelayedCall} instances. Comparison is based on the C{time} attribute (unadjusted by the delayed time). r] r` rL rL rM �__lt__� rb zDelayedCall.__lt__c C sV | j dur| j S t| d�r@t| jdd�}|du r5t| jdd�}|dur5t| jdd�}|dur5|� d|� �}|du r?t�| j�}nd}| �� }dt| �| j| | j | j f g}|dur�|� d|d f� | j r{|� d �d d � | j D ��� | jr{|� d � | jr�|� d �d d � | j�� D ��� |� d� | jr�|� dd�| j� � |� d� d�|�S )z� Implement C{repr()} for L{DelayedCall} instances. @returns: String containing details of the L{DelayedCall}. Nr< � __qualname__�__name__�im_class�.z.<DelayedCall 0x%x [%ss] called=%s cancelled=%s� �(z, c S s g | ]}t �|��qS rL �r2 � safe_repr)�.0�erL rL rM � <listcomp> s z(DelayedCall.__repr__.<locals>.<listcomp>c S s$ g | ]\}}|� d t �|�� ��qS )�=rj )rl �k�vrL rL rM rn s $ �)z traceback at creation: %sz �>� )r: �hasattr�getattrr< r2 rk r5 �idr; rG rF �extendr= �append�joinr> �itemsrI rJ )rK r< �imClass�now�LrL rL rM �__repr__� sH ��� �� zDelayedCall.__repr__�rA N)re � __module__rd rI r: r �str�__annotations__�runtimeSeconds�floatr r r �objectr rN rQ r? r@ rZ rY �boolr[ ra rc r rL rL rL rM r9 K s< �� �� � � � � �# r9 c @ s� e Zd ZdZddd�Zded edefd d �Zded ee ddfd d�Z deded ee ddfdd�Z ddede e dee fdd�Z dS )�ThreadedResolvera� L{ThreadedResolver} uses a reactor, a threadpool, and L{socket.gethostbyname} to perform name lookups without blocking the reactor thread. It also supports timeouts indepedently from whatever timeout logic L{socket.gethostbyname} might have. @ivar reactor: The reactor the threadpool of which will be used to call L{socket.gethostbyname} and the I/O thread of which the result will be delivered. �reactor� ReactorBaserA Nc C s || _ i | _d S �N)r� �_runningQueries)rK r� rL rL rM rN s �zThreadedResolver.__init__�name�errc C s t �d|�d|� ��}t|�S )N�address z not found: )r �DNSLookupErrorr3 )rK r� r� � lookupErrorrL rL rM �_fail& s zThreadedResolver._fail�lookupDeferredc C s, | j | \}}| j |= |�| �|d�� d S )Nz timeout error)r� �errbackr� )rK r� r� � userDeferred� cancelCallrL rL rM �_cleanup* s zThreadedResolver._cleanup�resultc C sj z | j | \}}W n ty Y d S w | j |= |�� t|t�r.|�| �||�� �� d S |�|� d S r� ) r� �KeyErrorr? r^ r3 r� r� �getErrorMessage�callback)rK r� r� r� r� r� rL rL rM � _checkTimeout/ s � z ThreadedResolver._checkTimeout�rR � � �- �timeoutc C st |rt |�}nd}t� }t�| jtt| j��� tj |�}tt | j�� || j ||�}||f| j |< |�| j||� |S )a1 See L{twisted.internet.interfaces.IResolverSimple.getHostByName}. Note that the elements of C{timeout} are summed and the result is used as a timeout for the lookup. Any intermediate timeout or retry logic is left up to the platform via L{socket.gethostbyname}. �< )�sumr r �deferToThreadPoolr� r r* � getThreadPool�socket� gethostbynamer+ � callLaterr� r� �addBothr� )rK r� r� � timeoutDelayr� r� r� rL rL rM � getHostByName? s � �z ThreadedResolver.getHostByName)r� r� rA N�r� )re r� rd �__doc__rN r� r3 r� r r� r� r �intr� rL rL rL rM r� s, ��� �����r� c @ s. e Zd Z ddedee dee fdd�ZdS ) �BlockingResolverr� r� r� rA c C sL zt �|�}W n ty d|�d�}t�|�}t�|� Y S w t�|�S )Nr� z not found)r� r� �OSErrorr r� r �fail�succeed)rK r� r� �address�msgr� rL rL rM r� ^ s � z BlockingResolver.getHostByNameNr� )re r� rd r� r r� r r� rL rL rL rM r� \ s ����r� .� _ThreePhaseEventTriggerHandlec @ s� e Zd ZdZddd�Zdededed edef d d �Z d eddfd d�Z d eddfdd�Z d eddfdd�Z ddd�Z deddfdd�ZdS )�_ThreePhaseEventa� Collection of callables (with arguments) which can be invoked as a group in a particular order. This provides the underlying implementation for the reactor's system event triggers. An instance of this class tracks triggers for all phases of a single type of event. @ivar before: A list of the before-phase triggers containing three-tuples of a callable, a tuple of positional arguments, and a dict of keyword arguments @ivar finishedBefore: A list of the before-phase triggers which have already been executed. This is only populated in the C{'BEFORE'} state. @ivar during: A list of the during-phase triggers containing three-tuples of a callable, a tuple of positional arguments, and a dict of keyword arguments @ivar after: A list of the after-phase triggers containing three-tuples of a callable, a tuple of positional arguments, and a dict of keyword arguments @ivar state: A string indicating what is currently going on with this object. One of C{'BASE'} (for when nothing in particular is happening; this is the initial value), C{'BEFORE'} (when the before-phase triggers are in the process of being executed). rA Nc C s g | _ g | _g | _d| _d S )N�BASE)�before�during�after�staterP rL rL rM rN � s z_ThreePhaseEvent.__init__�phase�callabler= �kwargsc O s6 |dvrt d��t| |��|||f� t||||f�S )a� Add a trigger to the indicate phase. @param phase: One of C{'before'}, C{'during'}, or C{'after'}. @param callable: An object to be called when this event is triggered. @param args: Positional arguments to pass to C{callable}. @param kwargs: Keyword arguments to pass to C{callable}. @return: An opaque handle which may be passed to L{removeTrigger} to reverse the effects of calling this method. �r� r� r� � invalid phase)r� rv ry r� )rK r� r� r= r� rL rL rM � addTrigger� s z_ThreePhaseEvent.addTrigger�handlec C s t | d| j �|� dS )aS Remove a previously added trigger callable. @param handle: An object previously returned by L{addTrigger}. The trigger added by that call will be removed. @raise ValueError: If the trigger associated with C{handle} has already been removed or if C{handle} is not a valid handle. �removeTrigger_N)rv r� )rK r� rL rL rM � removeTrigger� s z _ThreePhaseEvent.removeTriggerc C sV z|\}}}}W n t tfy td��w |dvr td��t| |��|||f� dS )zN Just try to remove the trigger. @see: removeTrigger zinvalid trigger handler� r� N)� TypeError� ValueErrorr� rv �remove�rK r� r� r� r= r� rL rL rM �removeTrigger_BASE� s �z#_ThreePhaseEvent.removeTrigger_BASEc C sP |\}}}}|dkr| � |�S |||f| jv r!tjdtdd� dS | � |� dS )z� Remove the trigger if it has yet to be executed, otherwise emit a warning that in the future an exception will be raised when removing an already-executed trigger. @see: removeTrigger r� zdRemoving already-fired system event triggers will raise an exception in a future version of Twisted.r� )�category� stacklevelN)r� �finishedBefore�warnings�warn�DeprecationWarningr� rL rL rM �removeTrigger_BEFORE� s �z%_ThreePhaseEvent.removeTrigger_BEFOREc C s� d| _ g | _g }| jrA| j�d�\}}}| j�|||f� z ||i |��}W n ty3 t�� Y n w t|t �r>|�|� | js t |�� | j � dS )z8 Call the triggers added to this event. �BEFOREr N) r� r� r� �popry � BaseExceptionr1 r� r^ r r! � addCallback�_continueFiring)rK � beforeResultsr� r= r� r� rL rL rM � fireEvent� s � � z_ThreePhaseEvent.fireEvent�ignoredc C sh d| _ g | _| j| jfD ]%}|r1|�d�\}}}z ||i |�� W n ty. t�� Y nw |sq dS )zJ Call the during and after phase triggers for this event. r� r N)r� r� r� r� r� r� r1 r� )rK r� r� r� r= r� rL rL rM r� � s ����z _ThreePhaseEvent._continueFiringr� )re r� rd r� rN r� � _ThreePhaseEventTriggerCallabler� r� r� r� r� r� r� r� rL rL rL rM r� u s& ���� � r� c @ sf e Zd ZU dZe� Zeed< ee�Z e ed< dedefdd�Z de de fdd�Z e de fd d ��Zd S ) �PluggableResolverMixinz� A mixin which implements the pluggable resolver reactor interfaces. @ivar resolver: The installed L{IResolverSimple}. @ivar _nameResolver: The installed L{IHostnameResolver}. �resolver� _nameResolverrA c C s( t �|�sJ �| j}|| _t|�| _|S )z� See L{IReactorPluggableResolver}. @param resolver: see L{IReactorPluggableResolver}. @return: see L{IReactorPluggableResolver}. )r- � providedByr� �_SimpleResolverComplexifierr� )rK r� � oldResolverrL rL rM �installResolver s z&PluggableResolverMixin.installResolverc C s | j }|| _ t|�| _|S )z� See L{IReactorPluggableNameResolver}. @param resolver: See L{IReactorPluggableNameResolver}. @return: see L{IReactorPluggableNameResolver}. )r� �_ComplexResolverSimplifierr� )rK r� �previousNameResolverrL rL rM �installNameResolver s z*PluggableResolverMixin.installNameResolverc C s | j S )zd Implementation of read-only L{IReactorPluggableNameResolver.nameResolver}. )r� rP rL rL rM � nameResolver, s z#PluggableResolverMixin.nameResolverN)re r� rd r� r� r� r- r� r� r� r% r� r� �propertyr� rL rL rL rM r� s r� �_SystemEventIDc s� e Zd ZdZdZdZdZdZdZdZ do� fdd� Z dZ dod d �Z dod d �Z d e e ddfdd�Zdeddfdd�Zdeddfdd�Zdeddfdd�Zdeddfdd�Zdeeeef fdd�Zdee fd d �Zdee fd d �Z dpd!ed"e e de e fd#d$�Z dod%d&�Z dod'd(�Z!dqd)e d*e e" ddfd+d,�Z#dqd)e d*e e" ddfd-d.�Z$dqd)e d*e e" ddfd/d0�Z%dod1d2�Z&drd eddfd4d5�Z'd6eddfd7d8�Z(d9ed6ed:e)d;e*f d<e+d=e+de,f d>d?�Z-d@e,ddfdAdB�Z.d:e)d;e*f d<e+d=e+de e, fdCdD�Z/dodEdF�Z0dodGdH�Z1dodIdJ�Z2e3e4�Z5d ed:e)d;e*f d<e+dKe+de6f dLdM�Z7dNe6ddfdOdP�Z8dNe6ddfdQdR�Z9de e: fdSdT�Z;dodUdV�Z<de e fdWdX�Z=dodYdZ�Z>e?�@� �r�eAdu�saJ �dZBdZCdZDdod[d\�ZEd]e)d;e*f d<e+d=e+ddfd^d_�ZFdod`da�ZGdodbdc�ZHdoddde�ZIdeAfdfdg�ZJdhe)d;e*f d<e+d=e+ddfdidj�ZKdke ddfdldm�ZL� ZMS d]e)d;e*f d<e+d=e+ddfdnd_�ZF� ZMS )sr� a� Default base class for Reactors. @ivar _stopped: A flag which is true between paired calls to C{reactor.run} and C{reactor.stop}. This should be replaced with an explicit state machine. @ivar _justStopped: A flag which is true between the time C{reactor.stop} is called and the time the shutdown system event is fired. This is used to determine whether that event should be fired after each iteration through the mainloop. This should be replaced with an explicit state machine. @ivar _started: A flag which is true from the time C{reactor.run} is called until the time C{reactor.run} returns. This is used to prevent calls to C{reactor.run} on a running reactor. This should be replaced with an explicit state machine. @ivar running: See L{IReactorCore.running} @ivar _registerAsIOThread: A flag controlling whether the reactor will register the thread it is running in as the I/O thread when it starts. If C{True}, registration will be done, otherwise it will not be. @ivar _exitSignal: See L{_ISupportsExitSignalCapturing._exitSignal} TFN�twisted.internet.reactorrA c s� t � �� g | _i | _g | _g | _d| _d| _d| _d| _ d| _ t � | _ d | _ | �dd| j� | �dd| j� | �dd| j� t�� rG| �� | �� d S )Nr Fr� �startup�shutdown)�superrN �threadCallQueue�_eventTriggers�_pendingTimedCalls�_newTimedCalls�_cancellations�running�_started� _justStopped�_startedBefore�set�_internalReaders�waker�addSystemEventTrigger�_reallyStartRunning�crash� disconnectAllr4 �supportsThreads� _initThreads� installWakerrP �� __class__rL rM rN Z s$ zReactorBase.__init__c C � t t�| j�d ��)Nz did not implement installWaker��NotImplementedErrorr2 �qualr� rP rL rL rM r� y � �zReactorBase.installWakerc C s | j r | j �� dS dS )z) Wake up the event loop. N)r� �wakeUprP rL rL rM r ~ s �zReactorBase.wakeUprZ c C r )zV Do one iteration over the readers and writers which have been added. z did not implement doIterationr �rK rZ rL rL rM � doIteration� s �zReactorBase.doIteration�readerc C r )Nz did not implement addReaderr �rK r rL rL rM � addReader� r zReactorBase.addReader�writerc C r )Nz did not implement addWriterr �rK r rL rL rM � addWriter� r zReactorBase.addWriterc C r )Nz did not implement removeReaderr r rL rL rM � removeReader� r zReactorBase.removeReaderc C r )Nz did not implement removeWriterr r rL rL rM � removeWriter� r zReactorBase.removeWriterc C r )Nz did not implement removeAllr rP rL rL rM � removeAll� r zReactorBase.removeAllc C r )Nz did not implement getReadersr rP rL rL rM � getReaders� r zReactorBase.getReadersc C r )Nz did not implement getWritersr rP rL rL rM � getWriters� r zReactorBase.getWritersr� r� r� c C s0 |st �d�S t�|�rt �|�S | j�||�S )z8 Return a Deferred that will resolve a hostname.z0.0.0.0)r r� r � isIPAddressr� r� )rK r� r� rL rL rM �resolve� s zReactorBase.resolvec C s& | j rt�d��d| _ d| _d| _dS )zD See twisted.internet.interfaces.IReactorCore.stop. z&Can't stop reactor that isn't running.TN)�_stoppedr �ReactorNotRunningr� r� rP rL rL rM �stop� s zReactorBase.stopc C s d| _ d| _| �dd| j� dS )z� See twisted.internet.interfaces.IReactorCore.crash. Reset reactor state tracking attributes and re-initialize certain state-transition helpers which were set up in C{__init__} but later destroyed (through use). Fr� r� N)r� r� r� r� rP rL rL rM r� � s zReactorBase.crash�number�framec C � t �d� | �| j� || _dS )z� Handle a SIGINT interrupt. @param number: See handler specification in L{signal.signal} @param frame: See handler specification in L{signal.signal} z Received SIGINT, shutting down.N�r1 r� �callFromThreadr � _exitSignal�rK r r rL rL rM �sigInt� � zReactorBase.sigIntc C r )z� Handle a SIGBREAK interrupt. @param number: See handler specification in L{signal.signal} @param frame: See handler specification in L{signal.signal} z!Received SIGBREAK, shutting down.Nr r rL rL rM �sigBreak� r zReactorBase.sigBreakc C r )z� Handle a SIGTERM interrupt. @param number: See handler specification in L{signal.signal} @param frame: See handler specification in L{signal.signal} z Received SIGTERM, shutting down.Nr r rL rL rM �sigTerm� r zReactorBase.sigTermc C s, | � � }|D ] }t�||jttj�� qdS )z2Disconnect every reader, and writer in the system.N)r r1 �callWithLogger�connectionLostr3 r �CONNECTION_LOST)rK � selectablesr rL rL rM r� � s ��zReactorBase.disconnectAllrB c C s | � � | �|� dS )zG See twisted.internet.interfaces.IReactorCore.iterate. N)�runUntilCurrentr r rL rL rM �iterate� s zReactorBase.iterate� eventTypec C s$ | j �|�}|dur|�� dS dS )zO See twisted.internet.interfaces.IReactorCore.fireSystemEvent. N)r� �getr� )rK r) �eventrL rL rM �fireSystemEvent s �zReactorBase.fireSystemEventr� r� .r= r� c O sV t �|�s J |� d���|| jvrt� | j|< t|| j| j||g|�R i |��f�S )zU See twisted.internet.interfaces.IReactorCore.addSystemEventTrigger. � is not callable)�builtinsr� r� r� r� r� )rK r� r) r� r= r� rL rL rM r� s �����z!ReactorBase.addSystemEventTrigger� triggerIDc C s |\}}| j | �|� dS )zX See twisted.internet.interfaces.IReactorCore.removeSystemEventTrigger. N)r� r� )rK r/ r) r� rL rL rM �removeSystemEventTrigger$ s z$ReactorBase.removeSystemEventTriggerc O s4 | j r ||i |�� dS | jdd|g|�R i |��S )zO See twisted.internet.interfaces.IReactorCore.callWhenRunning. Nr� r� )r� r� )rK r� r= r� rL rL rM �callWhenRunning+ s ���zReactorBase.callWhenRunningc C sD | j rt�� �| jrt�� �d| _ d| _| jrt�� | � d� dS )a� Method called when reactor starts: do some initialization and fire startup events. Don't call this directly, call reactor.run() instead: it should take care of calling this. This method is somewhat misnamed. The reactor will not necessarily be in the running state by the time this method returns. The only guarantee is that it will be on its way to the running state. TFr� N) r� r �ReactorAlreadyRunningr� �ReactorNotRestartabler �_registerAsIOThreadr7 �registerAsIOThreadr, rP rL rL rM � startRunning9 s zReactorBase.startRunningc C s d| _ dS )z� Method called to transition to the running state. This should happen in the I{during startup} event trigger phase. TN)r� rP rL rL rM r� O s z ReactorBase._reallyStartRunningc C s t � �r� )r rP rL rL rM �runV s zReactorBase.runr> c O sb t �|�s J |� d���|dksJ |� d���t| �� | |||| j| j| jd�}| j�|� |S )zI See twisted.internet.interfaces.IReactorTime.callLater. r- r z* is not greater than or equal to 0 seconds)r5 )r. r� r9 r5 �_cancelCallLater�_moveCallLaterSoonerr� ry )rK rZ r� r= r> � delayedCallrL rL rM r� ^ s � zReactorBase.callLaterr: c C sv | j }z-|�|�}|| }|dkr*|d d }|| |kr n || ||< |}|dks|||< W d S ty: Y d S w )Nr rR � )r� �indexr� )rK r: �heap�pos�elt�parentrL rL rM r9 r s � �z ReactorBase._moveCallLaterSoonerc C s | j d7 _ d S �NrR )r� )rK r: rL rL rM r8 � s z ReactorBase._cancelCallLaterc C s dd� | j | j D �S )zQ See L{twisted.internet.interfaces.IReactorTime.getDelayedCalls} c S � g | ]}|j s|�qS rL �rF �rl �xrL rL rM rn � s ��z/ReactorBase.getDelayedCalls.<locals>.<listcomp>)r� r� rP rL rL rM �getDelayedCalls� s �zReactorBase.getDelayedCallsc C s@ | j D ]}|jr| jd8 _q|�� t| j|� qg | _ d S rA )r� rF r� rY r r� )rK �callrL rL rM �_insertNewDelayedCalls� s z"ReactorBase._insertNewDelayedCallsc C s: | � � | js dS | jd j| �� }d}tdt||��S )z� Determine the longest time the reactor may sleep (waiting on I/O notification, perhaps) before it must wake up to service a time-related event. @return: The maximum number of seconds the reactor may sleep. Nr i�� )rH r� r; r5 �max�min)rK rZ �longestrL rL rM r� � s zReactorBase.timeoutc C s� | j rAd}t| j �}| j D ]&\}}}z ||i |�� W n ty( t�� Y nw |d7 }||kr3 nq | j d|�= | j rA| �� | �� | �� }| jr�| jd j |kr�t | j�}|j rd| j d8 _ qI|j dkrt|�� t| j|� qIzd|_|j|ji |j�� W n3 ty� t�� t|d�r�d}|d7 }|d7 }|d �|j��� �dd �7 }|d7 }t�|� Y nw | jr�| jd j |ksT| j d kr�| j t| j�d? kr�d| _ d d � | jD �| _t| j� | j r�d| _ | � d� dS dS )z. Run all pending timed calls. r rR NrB rJ � z? C: previous exception occurred in a DelayedCall created here: z C:rt z C:�2 c S rB rL rC rD rL rL rM rn � s ��z/ReactorBase.runUntilCurrent.<locals>.<listcomp>Fr� ) r� �lenr� r1 r� r rH r5 r� r; r rF r� rH rY r rG r< r= r> �deferrru rz rJ �rstrip�replacer� r r� r, ) rK �count�total�f�ar> r} rG rm rL rL rM r' � sn �� � ��� � �zReactorBase.runUntilCurrentc C s | � t| | j�� d| _d S )NT)r� � _GAIResolverr� � usingThreadsrP rL rL rM r� s zReactorBase._initThreadsrT c O s4 t |�s J |� d���| j�|||f� | �� dS )zl See L{twisted.internet.interfaces.IReactorFromThreads.callFromThread}. r- N)r� r� ry r �rK rT r= r� rL rL rM r s zReactorBase.callFromThreadc C s4 t ddd�| _| �| jj�| _| �dd| j�| _dS )zO Create the threadpool accessible with callFromThread. r � r� r� r� N)r8 � threadpoolr1 �start�_threadpoolStartupIDr� �_stopThreadPool�threadpoolShutdownIDrP rL rL rM �_initThreadPool s �zReactorBase._initThreadPoolc C � d S r� rL rP rL rL rM �_uninstallHandler$ s z ReactorBase._uninstallHandlerc C sj | j | jg}td|�D ]}z| �|� W q ty Y q w d| _ d| _| jdus+J �| j�� d| _dS )a4 Stop the reactor threadpool. This method is only valid if there is currently a threadpool (created by L{_initThreadPool}). It is not intended to be called directly; instead, it will be called by a shutdown trigger created in L{_initThreadPool}. N)r\ r^ �filterr0 r� rZ r )rK �triggers�triggerrL rL rM r] ' s � zReactorBase._stopThreadPoolc C s& | j du r| �� | j dusJ �| j S )z[ See L{twisted.internet.interfaces.IReactorThreads.getThreadPool}. N)rZ r_ rP rL rL rM r� : s zReactorBase.getThreadPool� _callablec O s | � � j|g|�R i |�� dS )z\ See L{twisted.internet.interfaces.IReactorInThreads.callInThread}. N)r� � callInThread)rK re r= r� rL rL rM rf F s zReactorBase.callInThread�sizec C s | � � j|d� dS )zc See L{twisted.internet.interfaces.IReactorThreads.suggestThreadPoolSize}. )� maxthreadsN)r� �adjustPoolsize)rK rg rL rL rM �suggestThreadPoolSizeN s z!ReactorBase.suggestThreadPoolSizec O s, t |�s J |� d���| j�|||f� d S )Nr- )r� r� ry rX rL rL rM r V s r� r� r� )rB )Nre r� rd r� r4 r � installedrW r rN �_lockr� r r r� r r, r r. r r r r r r r r r� r r� r r r r� r r r! r" r� r( r, r r r� r� r� r0 r1 r6 r� r7 � staticmethodr� r5 r9 r� r9 r8 r$ rF rH r� r' r4 r� r8 rZ r\ r^ r� r r_ ra r] r� rf rj � __classcell__rL rL r� rM r� 9 s� ��� � �� ��� � ��� � � ��� � D ��� � ��� � ����r� c @ s� e Zd ZdZdZdZdedededdfdd �Z d!d d �Z e d"d d��Z d!dd�Z d!dd�Zd!dd�Zdedee fdd�Zdeddfdd�Zdeddfdd �Zdefd d �Zdefd d �ZdS )#� BaseConnectorzm Basic implementation of L{IConnector}. State can be: "connecting", "connected", "disconnected" Nr �factoryr� r� rA c C s d| _ || _|| _|| _d S )N� disconnected)r� r� rp r� )rK rp r� r� rL rL rM rN m s zBaseConnector.__init__c C s@ | j dkr | �� dS | j dkr | jdusJ �| j�� dS dS )z!Disconnect whatever our state is.� connecting� connectedN)r� �stopConnecting� transport�loseConnectionrP rL rL rM � disconnectu s �zBaseConnector.disconnectr6 c C r` r� rL rP rL rL rM �_makeTransport} s z BaseConnector._makeTransportc C sn | j dkr td��d| _ | js| j�� d| _| �� | _| jdur/| j� | j| jj t � � �| _ | j�| � dS )z"Start connection to remote server.rq zcan't connect in this staterr rR N)r� � RuntimeError�factoryStartedrp �doStartrx ru r� r� r� �failIfNotConnectedr � TimeoutError� timeoutID�startedConnectingrP rL rL rM �connect� s �zBaseConnector.connectc C s@ | j dkr t�d��| jdusJ �d| _ | j�t�� � | `dS )zStop attempting to connect.rr zwe're not trying to connectNrq )r� r �NotConnectingErrorru r| � UserErrorrP rL rL rM rt � s z BaseConnector.stopConnectingc C s8 | j d urz| j �� W n ty Y nw | ` d S d S r� )r~ r? r� rP rL rL rM � cancelTimeout� s ��zBaseConnector.cancelTimeout�addrc C s d| _ | �� | j�|�S )Nrs )r� r� rp � buildProtocol)rK r� rL rL rM r� � s zBaseConnector.buildProtocol�reasonc C sD | � � d | _d| _| j�| |� | jdkr | j�� d| _d S d S �Nrq r )r� ru r� rp �clientConnectionFailed�doStoprz �rK r� rL rL rM �connectionFailed� s �z BaseConnector.connectionFailedc C s6 d| _ | j�| |� | j dkr| j�� d| _d S d S r� )r� rp �clientConnectionLostr� rz r� rL rL rM r$ � s �z BaseConnector.connectionLostc C r )Nz! did not implement getDestinationr rP rL rL rM �getDestination� r z BaseConnector.getDestinationc C s" d� t�| j�t| �| j| �� �S )Nz <{} instance at 0x{:x} {} {}>)�formatr2 r r� rw r� r� rP rL rL rM r � s �zBaseConnector.__repr__r� )rA r6 )re r� rd r� r~ rz r0 r� r� rN rw r rx r� rt r� r" r r& r� r3 r� r$ r� r� r rL rL rL rM ro b s0 ��� � ro c @ sP e Zd ZU dZdZejed< dZej ed< dejfdd�Z de e fdd �Z dS ) �BasePortziBasic implementation of a ListeningPort. Note: This does not actually implement IListeningPort. N� addressFamily� socketTyperA c C s, t � | j| j�}|�d� t�|�� � |S )NF)r� r� r� � setblockingr �_setCloseOnExec�fileno)rK �srL rL rM �createInternetSocket� s z BasePort.createInternetSocketc C s t dt�| j� ��)zRaises a RuntimeErrorzdoWrite called on a %s)ry r2 r r� rP rL rL rM �doWrite� s zBasePort.doWrite)re r� rd r� r� r� � AddressFamilyr� r� � SocketKindr� r r3 r� rL rL rL rM r� � s r� c @ sZ e Zd ZdZdZddd�Zddeddfd d �Zdd d �Zddeddfd d�Z ddd�Z dS )�_SignalReactorMixina! Private mixin to manage signals: it installs signal handlers at start time, and define run method. It can only be used mixed in with L{ReactorBase}, and has to be defined first in the inheritance (so that method resolution order finds startRunning first). @ivar _installSignalHandlers: A flag which indicates whether any signal handlers will be installed during startup. This includes handlers for SIGCHLD to monitor child processes, and SIGINT, SIGTERM, and SIGBREAK to stop the reactor. FrA Nc C s� zddl }W n ty t�d� Y dS w tt| �}|�|j�|jkr,|� |j|j � |� |j |j � t |dd�}|durG|� ||j � dS dS )zI Install the signal handlers for the Twisted event loop. r NzEWarning: signal module unavailable -- not installing signal handlers.�SIGBREAK)�signal� ImportErrorr1 r� r r� � getsignal�SIGINT�default_int_handlerr �SIGTERMr" rv r! )rK r� �reactorBaseSelfr� rL rL rM �_handleSignals� s �� �z"_SignalReactorMixin._handleSignalsT�installSignalHandlersc C s || _ t�tt| �� dS )aB Extend the base implementation in order to remember whether signal handlers should be installed later. @param installSignalHandlers: A flag which, if set, indicates that handlers for a number of (implementation-defined) signals should be installed during startup. N)�_installSignalHandlersr� r6 r �rK r� rL rL rM r6 s z _SignalReactorMixin.startRunningc C s& t �tt | �� | jr| �� dS dS )z� Extend the base implementation by also installing signal handlers, if C{self._installSignalHandlers} is true. N)r� r� r r� r� rP rL rL rM r� s �z'_SignalReactorMixin._reallyStartRunningc C s | j |d� | �� d S )N)r� )r6 �mainLoopr� rL rL rM r7 ! s z_SignalReactorMixin.runc C s� t t| �}|jr?z|jr!|�� |�� }|jo|}|�|� |js W n ty4 t� d� t� � Y nw t� d� |jsd S d S )Nz Unexpected error in main loop.zMain loop terminated.) r r� r� r' r� r� r r� r1 r� r� )rK r� �t2�trL rL rM r� % s �� � �z _SignalReactorMixin.mainLoopr� )T) re r� rd r� r� r� r� r6 r� r7 r� rL rL rL rM r� � s r� �__all__)cr� r. r� r� �abcr r �heapqr r r � tracebackr �typesr �typingr r r r r r r r r r r r �zope.interfacer r �twisted.internetr r r r r r �twisted.internet._resolverr r� r rV r r� �twisted.internet.deferr r! �twisted.internet.interfacesr" r# r$ r% r& r' r( r) r* r+ r, r- r. r/ �twisted.internet.protocolr0 �twisted.pythonr1 r2 �twisted.python.failurer3 �twisted.python.runtimer4 r5 r� �twisted.internet.tcpr6 r7 r� �twisted.python.threadpoolr8 r9 r� r� r� r� r� �_ThreePhaseEventTriggerr� r� r� r� � _ThreadCallr� ro �FileDescriptorr� r� r� r� rL rL rL rM �<module> st 8 @ HH � � 1& ( e\