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Editing: base.cpython-38.pyc
U �q�[� � @ s� d Z ddlmZmZ ddlZddlmZmZ ddlZddl Z ddl m Z m Z m Z ddlZddlmZmZmZmZmZmZmZmZmZ ddlmZmZm Z m Z m Z m Z ddl m!Z"m#Z$m%Z& dd l'm(Z(m)Z)m*Z* dd l+m,Z,m-Z- dd l.m/Z0m1Z1 dd l2m3Z3m4Z4 dd l5m6Z6 ddl'm7Z7 ee�e6G dd� d���Z8ee�G dd� de9��Z:ee�e6G dd� d���Z;G dd� de9�Z<eeeeee�G dd� de9��Z=e1�>� �r�ee=e� ee�e6G dd� d���Z?G dd � d e j@�ZAG d d � d e9�ZBg ZCdS ) z8 Very basic functionality for a Reactor implementation. � )�division�absolute_importN)� implementer�classImplements)�heappush�heappop�heapify) � IReactorCore� IReactorTime�IReactorThreads�IResolverSimple�IReactorPluggableResolver� IReactorPluggableNameResolver� IConnector� IDelayedCall� _ISupportsExitSignalCapturing)�fdesc�main�error�abstract�defer�threads)� GAIResolver�ComplexResolverSimplifier�SimpleResolverComplexifier)�log�failure�reflect)�unicode� iteritems)�seconds�platform)�Deferred� DeferredList)� _oldStyle)� threadablec @ sh e Zd ZdZdZefdd�Zdd� Zdd� Zd d � Z d d � Z d d� Z dd� Z dd� Z dd� Zdd� ZdS )� DelayedCallFNc C s\ ||||f\| _ | _| _| _|| _|| _|| _d | _| _d| _ | j rXt � � dd� | _ 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���)�time�func�args�kw�resetter� cancellerr � cancelled�called� delayed_time�debug� traceback� format_stack�creator)�selfr( r) r* r+ �cancel�resetr � r8 �7/usr/lib/python3/dist-packages/twisted/internet/base.py�__init__4 s zDelayedCall.__init__c C s | j | j S )z�Return the time at which this call will fire @rtype: C{float} @return: The number of seconds after the epoch at which this call is scheduled to be made. �r( r0 �r5 r8 r8 r9 �getTimeO s zDelayedCall.getTimec C sL | j rtj�n:| jr tj�n,| �| � 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) r. r �AlreadyCancelledr/ � AlreadyCalledr- r1 �repr�_reprr) r* r+ r< r8 r8 r9 r6 X s zDelayedCall.cancelc C sZ | j rtj�nH| jr tj�n:| �� | }|| jk rJd| _|| _| �| � n || j | _dS )as Reschedule this call for a different time @type secondsFromNow: C{float} @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. r N) r. r r? r/ r@ r r( r0 r, )r5 ZsecondsFromNowZnewTimer8 r8 r9 r7 k s zDelayedCall.resetc C sJ | j rtj�n8| jr tj�n*| j|7 _| jdk rF| �� | �| � dS )ai Reschedule this call for a later time @type secondsLater: C{float} @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. r N)r. r r? r/ r@ r0 �activate_delayr, )r5 Z secondsLaterr8 r8 r9 �delay� s zDelayedCall.delayc C s | j | j7 _ d| _d S �Nr r; r< r8 r8 r9 rC � s zDelayedCall.activate_delayc C s | j p | j S )z�Determine whether this call is still pending @rtype: C{bool} @return: True if this call has not yet been made or cancelled, False otherwise. )r. r/ r< r8 r8 r9 �active� s zDelayedCall.activec C s | j |j kS )z� Implement C{<=} operator between two L{DelayedCall} instances. Comparison is based on the C{time} attribute (unadjusted by the delayed time). �r( �r5 �otherr8 r8 r9 �__le__� s zDelayedCall.__le__c C s | j |j k S )z� Implement C{<} operator between two L{DelayedCall} instances. Comparison is based on the C{time} attribute (unadjusted by the delayed time). rG rH r8 r8 r9 �__lt__� s zDelayedCall.__lt__c C sN | j dk r| j S t| d�rrt| jd�r0| jj}qvt| jd�rd| jj}t| jd�rp| jjjd | }qvt�| j�}nd}| � � }dt | �| j | | j | j f g}|dk �r |�d|d f� | jr�|�d �d d � | jD ��� | jr�|�d � | j�r|�d �d d � | j�� D ��� |�d� | j�r:|�dd�| j� � |�d� d�|�S )z� Implement C{repr()} for L{DelayedCall} instances. @rtype: C{str} @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 r8 �r � safe_repr)�.0�er8 r8 r9 � <listcomp>� s z(DelayedCall.__repr__.<locals>.<listcomp>c S s" g | ]\}}d |t �|�f �qS )z%s=%srR )rT �k�vr8 r8 r9 rV � s �)z traceback at creation: %sz �>� )rB �hasattrr) rL Z func_namerN rM r rS r �idr( r/ r. �extendr* �append�joinr+ �itemsr1 r4 )r5 r) �now�Lr8 r8 r9 �__repr__� s> � zDelayedCall.__repr__)rM � __module__rL r1 rB �runtimeSecondsr: r= r6 r7 rD rC rF rJ rK rd r8 r8 r8 r9 r& + s � r& c @ s: e Zd ZdZdd� Zdd� Zdd� Zdd � Zdd d �Zd S )�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. c C s || _ i | _d S �N)�reactor�_runningQueries)r5 ri r8 r8 r9 r: � s zThreadedResolver.__init__c C s t �d||f �}t�|�S )Nzaddress %r not found: %s)r �DNSLookupErrorr �Failure)r5 �name�errr8 r8 r9 �_fail� s zThreadedResolver._failc C s, | j | \}}| j |= |�| �|d�� d S )Nz timeout error)rj �errbackro )r5 rm �lookupDeferred� userDeferred� cancelCallr8 r8 r9 �_cleanup� s zThreadedResolver._cleanupc C sj z| j | \}}W n tk r& Y n@X | j |= |�� t|tj�r\|�| �||�� �� n |� |� d S rh ) rj �KeyErrorr6 � isinstancer rl rp ro ZgetErrorMessage�callback)r5 �resultrm rq rr rs r8 r8 r9 � _checkTimeout s z ThreadedResolver._checkTimeout�r> � � �- c C sj |rt |�}nd}t�� }t�| j| j�� tj|�}| 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" r ZdeferToThreadPoolri � getThreadPool�socket� gethostbyname� callLaterrt rj ZaddBothry )r5 rm �timeoutZ timeoutDelayrr rq rs r8 r8 r9 � getHostByName s& � �z ThreadedResolver.getHostByNameN)rz ) rM re rL �__doc__r: ro rt ry r� r8 r8 r8 r9 rg � s rg c @ s e Zd Zddd�ZdS )�BlockingResolverrz c C sR zt �|�}W n4 t jk rB d|f }t�|�}t�|� Y S X t�|�S d S )Nzaddress %r not found)r� r� r rk r Zfail�succeed)r5 rm r� Zaddress�msgrn r8 r8 r9 r� - s z BlockingResolver.getHostByNameN)rz )rM re rL r� r8 r8 r8 r9 r� ) s r� c @ sH e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dS )�_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). c C s g | _ g | _g | _d| _d S )N�BASE)�before�during�after�stater< r8 r8 r9 r: U s z_ThreePhaseEvent.__init__c O s2 |dkrt d��t| |��|||f� ||||fS )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)ru �getattrr_ )r5 �phase�callabler* �kwargsr8 r8 r9 � addTrigger\ s z_ThreePhaseEvent.addTriggerc C s t | d| j �|�S )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. ZremoveTrigger_)r� r� )r5 �handler8 r8 r9 � removeTriggero s z _ThreePhaseEvent.removeTriggerc C s\ z|\}}}}W n t tfk r0 td��Y n(X |dkrBtd��t| |��|||f� dS )zN Just try to remove the trigger. @see: removeTrigger zinvalid trigger handler� r� N)� TypeError� ValueErrorru r� �remove�r5 r� r� r� r* r� r8 r8 r9 �removeTrigger_BASE| s z#_ThreePhaseEvent.removeTrigger_BASEc C sN |\}}}}|dkr | � |�S |||f| jkr@tjdtdd� n | � |� 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� r8 r8 r9 �removeTrigger_BEFORE� s �z%_ThreePhaseEvent.removeTrigger_BEFOREc C s� d| _ g | _g }| jrt| j�d�\}}}| j�|||f� z|||�}W n t�� Y qX t|t�r|�|� qt |�� | j � dS )z8 Call the triggers added to this event. ZBEFOREr N) r� r� r� �popr_ r rn rv r" r# Z addCallback�_continueFiring)r5 Z beforeResultsr� r* r� rx r8 r8 r9 � fireEvent� s z_ThreePhaseEvent.fireEventc C s\ d| _ g | _| j| jfD ]>}|r|�d�\}}}z|||� W q t�� Y q X q qdS )zJ Call the during and after phase triggers for this event. r� r N)r� r� r� r� r� r rn )r5 Zignoredr� r� r* r� r8 r8 r9 r� � s z _ThreePhaseEvent._continueFiringN) rM re rL r� r: r� r� r� r� r� r� r8 r8 r8 r9 r� 8 s r� c @ s� e Zd ZdZdZdZdZdZe� Z dZ dZ dd� Z dZ dd � Z d d � Zd d � Zedd� �Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d!� Zdad#d$�Zd%d&� Z d'd(� Z d)d*� Z d+d,� Z d-d.� Z d/d0� Z!dbd2d3�Z"d4d5� Z#d6d7� Z$d8d9� Z%d:d;� Z&d<d=� Z'd>d?� Z(e)e*�Z+d@dA� Z,dBdC� Z-dDdE� Z.dFdG� Z/dHdI� Z0dJdK� Z1dLdM� Z2dNdO� Z3e4�5� �r�dZ6dZ7dZ8dPdQ� Z9dRdS� Z:dTdU� Z;dVdW� Z<dXdY� Z=dZd[� Z>d\d]� Z?d^d_� Z@nd`dS� Z:dS )c� ReactorBasea� Default base class for Reactors. @type _stopped: C{bool} @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. @type _justStopped: C{bool} @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. @type _started: C{bool} @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.reactorc C s� g | _ i | _g | _g | _d| _d| _d| _d| _d| _t � | _ d | _ d | _ | � dd| j� | � dd| j� | � dd| j� t�� r�| �� | �� d S )Nr Fr� �startup�shutdown)�threadCallQueue�_eventTriggers�_pendingTimedCalls�_newTimedCalls�_cancellations�running�_started� _justStopped�_startedBefore�setZ_internalReaders� _nameResolver�waker�addSystemEventTrigger�_reallyStartRunning�crash� disconnectAllr! �supportsThreads� _initThreads� installWakerr< r8 r8 r9 r: � s, �zReactorBase.__init__c C s t t�| j�d ��d S )Nz did not implement installWaker��NotImplementedErrorr �qual� __class__r< r8 r8 r9 r� s �zReactorBase.installWakerc C s( t �|�st�| j}|| _t|�| _|S )z� See L{IReactorPluggableResolver}. @param resolver: see L{IReactorPluggableResolver}. @return: see L{IReactorPluggableResolver}. )r Z providedBy�AssertionError�resolver�_SimpleResolverComplexifierr� )r5 r� Z oldResolverr8 r8 r9 �installResolver s zReactorBase.installResolverc C s | j }|| _ t|�| _|S )z� See L{IReactorPluggableNameResolver}. @param resolver: See L{IReactorPluggableNameResolver}. @return: see L{IReactorPluggableNameResolver}. )r� �_ComplexResolverSimplifierr� )r5 r� ZpreviousNameResolverr8 r8 r9 �installNameResolver# s z ReactorBase.installNameResolverc C s | j S )zd Implementation of read-only L{IReactorPluggableNameResolver.nameResolver}. )r� r< r8 r8 r9 � nameResolver1 s zReactorBase.nameResolverc C s | j r| j �� dS )z) Wake up the event loop. N)r� �wakeUpr< r8 r8 r9 r� : s zReactorBase.wakeUpc C s t t�| j�d ��dS )zV Do one iteration over the readers and writers which have been added. z did not implement doIterationNr� �r5 rD r8 r8 r9 � doIterationC s �zReactorBase.doIterationc C s t t�| j�d ��d S )Nz did not implement addReaderr� �r5 �readerr8 r8 r9 � addReaderJ s �zReactorBase.addReaderc C s t t�| j�d ��d S )Nz did not implement addWriterr� �r5 �writerr8 r8 r9 � addWriterN s �zReactorBase.addWriterc C s t t�| j�d ��d S )Nz did not implement removeReaderr� r� r8 r8 r9 � removeReaderR s �zReactorBase.removeReaderc C s t t�| j�d ��d S )Nz did not implement removeWriterr� r� r8 r8 r9 � removeWriterV s �zReactorBase.removeWriterc C s t t�| j�d ��d S )Nz did not implement removeAllr� r< r8 r8 r9 � removeAllZ s �zReactorBase.removeAllc C s t t�| j�d ��d S )Nz did not implement getReadersr� r< r8 r8 r9 � getReaders_ s �zReactorBase.getReadersc C s t t�| j�d ��d S )Nz did not implement getWritersr� r< r8 r8 r9 � getWritersd s �zReactorBase.getWritersrz c C s0 |st �d�S t�|�r"t �|�S | j�||�S )z8Return a Deferred that will resolve a hostname. z0.0.0.0)r r� r Z isIPAddressr� r� )r5 rm r� r8 r8 r9 �resolvei 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 ZReactorNotRunningr� r� r< r8 r8 r9 �stopv 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� r< r8 r8 r9 r� � s �zReactorBase.crashc G s$ t �d� | �| j� |d | _dS )zp Handle a SIGINT interrupt. @param args: See handler specification in L{signal.signal} z Received SIGINT, shutting down.r N�r r� �callFromThreadr� � _exitSignal�r5 r* r8 r8 r9 �sigInt� s zReactorBase.sigIntc G s$ t �d� | �| j� |d | _dS )zr Handle a SIGBREAK interrupt. @param args: See handler specification in L{signal.signal} z!Received SIGBREAK, shutting down.r Nr� r� r8 r8 r9 �sigBreak� s zReactorBase.sigBreakc G s$ t �d� | �| j� |d | _dS )zq Handle a SIGTERM interrupt. @param args: See handler specification in L{signal.signal} z Received SIGTERM, shutting down.r Nr� r� r8 r8 r9 �sigTerm� s zReactorBase.sigTermc C s. | � � }|D ] }t�||jt�tj�� q dS )z;Disconnect every reader, and writer in the system. N)r� r ZcallWithLogger�connectionLostr rl r ZCONNECTION_LOST)r5 Z selectablesr� r8 r8 r9 r� � s �zReactorBase.disconnectAllr c C s | � � | �|� dS )z>See twisted.internet.interfaces.IReactorCore.iterate. N)�runUntilCurrentr� r� r8 r8 r9 �iterate� s zReactorBase.iteratec C s | j �|�}|dk r |�� dS )zFSee twisted.internet.interfaces.IReactorCore.fireSystemEvent. N)r� �getr� )r5 � eventTypeZeventr8 r8 r9 �fireSystemEvent� s zReactorBase.fireSystemEventc O sH t |�std| ��|| jkr*t� | j|< || j| j||f|�|�fS )zLSee twisted.internet.interfaces.IReactorCore.addSystemEventTrigger. �%s is not callable)r� r� r� r� r� )r5 Z_phaseZ _eventType�_fr* r+ r8 r8 r9 r� � s ���z!ReactorBase.addSystemEventTriggerc C s |\}}| j | �|� dS )zOSee twisted.internet.interfaces.IReactorCore.removeSystemEventTrigger. N)r� r� )r5 Z triggerIDr� r� r8 r8 r9 �removeSystemEventTrigger� s z$ReactorBase.removeSystemEventTriggerc O s, | j r|||� n| jdd|f|�|�S dS )zFSee twisted.internet.interfaces.IReactorCore.callWhenRunning. r� r� N)r� r� )r5 � _callabler* r+ r8 r8 r9 �callWhenRunning� s ���zReactorBase.callWhenRunningc C sD | j rt�� �| jr t�� �d| _ d| _| jr6t�� | � 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 ZReactorAlreadyRunningr� ZReactorNotRestartabler� �_registerAsIOThreadr% ZregisterAsIOThreadr� r< r8 r8 r9 � startRunning� 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� r< r8 r8 r9 r� � s z ReactorBase._reallyStartRunningc O s^ t |�std| ��|dks*td|f ��t| �� | |||| j| j| jd�}| j�|� |S )z@See twisted.internet.interfaces.IReactorTime.callLater. r� r z,%s is not greater than or equal to 0 seconds)r )r� r� r& r �_cancelCallLater�_moveCallLaterSoonerr� r_ )r5 Z_secondsr� r* r+ �tpler8 r8 r9 r� s �� zReactorBase.callLaterc C sr | j }zR|�|�}|| }|dkrN|d d }|| |kr<qN|| ||< |}q|||< W n tk rl Y nX d S )Nr r> � )r� �indexr� )r5 r� �heap�posZelt�parentr8 r8 r9 r� s z ReactorBase._moveCallLaterSoonerc C s | j d7 _ d S �Nr> )r� )r5 r� r8 r8 r9 r� & s z ReactorBase._cancelCallLaterc C s dd� | j | j D �S )a3 Return all the outstanding delayed calls in the system. They are returned in no particular order. This method is not efficient -- it is really only meant for test cases. @return: A list of outstanding delayed calls. @type: L{list} of L{DelayedCall} c S s g | ]}|j s|�qS r8 �r. �rT �xr8 r8 r9 rV 4 s z/ReactorBase.getDelayedCalls.<locals>.<listcomp>)r� r� r< r8 r8 r9 �getDelayedCalls* s zReactorBase.getDelayedCallsc C s@ | j D ].}|jr | jd8 _q|�� t| j|� qg | _ d S r� )r� r. r� rC r r� )r5 �callr8 r8 r9 �_insertNewDelayedCalls7 s z"ReactorBase._insertNewDelayedCallsc C s: | � � | jsdS | jd j| �� }d}tdt||��S )a 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. @rtype: L{float} Nr i�� )r� r� r( r �max�min)r5 rD Zlongestr8 r8 r9 r� A s zReactorBase.timeoutc C s� | j rxd}t| j �}| j D ]B\}}}z|||� W n t�� Y nX |d7 }||kr q^q| j d|�= | j rx| �� | �� | �� }| j�rb| jd j|k�rbt | j�}|j r�| j d8 _ q�|j dkr�|� � t| j|� q�zd|_|j|j|j� W q� t�� t|d��rZd}|d7 }|d7 }|d�|j��� �dd �7 }|d7 }t�|� Y q�X q�| j d k�r�| j t| j�d? k�r�d| _ d d � | jD �| _t| j� | j�r�d | _| � d� dS )z. Run all pending timed calls. r r> Nr4 � z? C: previous exception occurred in a DelayedCall created here: z C:r[ z C:�2 c S s g | ]}|j s|�qS r8 r� r� r8 r8 r9 rV � s �z/ReactorBase.runUntilCurrent.<locals>.<listcomp>Fr� ) r� �lenr rn r� r� r r� r( r r. r� r0 rC r r/ r) r* r+ Zdeferrr\ r` r4 �rstrip�replacer� r r� r� ) r5 �countZtotal�f�ar+ rb r� rU r8 r8 r9 r� _ s\ � zReactorBase.runUntilCurrentc s� t �� � � fdd�}t|ttf�s*td��g }|D ](}||�}|dkrPtd��q2|�|� q2d}|dk r�i }t|�D ]@\}}||�}|dkr�td��||�}|dkr�td��|||< qt||fS )a� Check for valid arguments and environment to spawnProcess. @return: A two element tuple giving values to use when creating the process. The first element of the tuple is a C{list} of C{bytes} giving the values for argv of the child process. The second element of the tuple is either L{None} if C{env} was L{None} or a C{dict} mapping C{bytes} environment keys to C{bytes} environment values. c sJ t | t�r0z| �� �} W n tk r. Y dS X t | t�rFd| krF| S dS )a\ Return either L{bytes} or L{None}. If the given value is not allowable for some reason, L{None} is returned. Otherwise, a possibly different object which should be used in place of arg is returned. This forces unicode encoding to happen now, rather than implicitly later. N� )rv r �encode�UnicodeEncodeError�bytes)�arg�ZdefaultEncodingr8 r9 � argChecker� s z1ReactorBase._checkProcessArgs.<locals>.argCheckerz!Arguments must be a tuple or listNz$Arguments contain a non-string valuez%Environment contains a non-string keyz'Environment contains a non-string value)�sys�getfilesystemencodingrv �tuple�listr� r_ r ) r5 r* �envr Z outputArgsr Z outputEnv�key�valr8 r r9 �_checkProcessArgs� s, z ReactorBase._checkProcessArgsc C s | � t| | j�� d| _d S )NT)r� � _GAIResolverr� � usingThreadsr< r8 r8 r9 r� � s zReactorBase._initThreadsc O s4 t |�std|f ��| j�|||f� | �� dS )zl See L{twisted.internet.interfaces.IReactorFromThreads.callFromThread}. r� N)r� r� r� r_ r� �r5 r r* r+ r8 r8 r9 r� � s zReactorBase.callFromThreadc C sB ddl m} |�ddd�| _| �| jj�| _| �dd| j�| _dS )zO Create the threadpool accessible with callFromThread. r )� threadpool� r� r� r� N) �twisted.pythonr Z ThreadPoolr� �start�_threadpoolStartupIDr� �_stopThreadPool�threadpoolShutdownID)r5 r r8 r8 r9 �_initThreadPool� s �� �zReactorBase._initThreadPoolc C s d S rh r8 r< r8 r8 r9 �_uninstallHandler s z ReactorBase._uninstallHandlerc C s` | j | jg}td|�D ](}z| �|� W q tk r< Y qX qd| _ d| _| 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 �filterr� r� r r� )r5 ZtriggersZtriggerr8 r8 r9 r s zReactorBase._stopThreadPoolc C s | j dkr| �� | j S )z[ See L{twisted.internet.interfaces.IReactorThreads.getThreadPool}. N)r r! r< r8 r8 r9 r� ! s zReactorBase.getThreadPoolc O s | � � j|f|�|� dS )z\ See L{twisted.internet.interfaces.IReactorInThreads.callInThread}. N)r� � callInThread)r5 r� r* r� r8 r8 r9 r$ * s zReactorBase.callInThreadc C s | � � j|d� dS )zc See L{twisted.internet.interfaces.IReactorThreads.suggestThreadPoolSize}. )Z maxthreadsN)r� ZadjustPoolsize)r5 �sizer8 r8 r9 �suggestThreadPoolSize1 s z!ReactorBase.suggestThreadPoolSizec O s, t |�std|f ��| j�|||f� d S )Nr� )r� r� r� r_ r r8 r8 r9 r� 8 s )rz )r )ArM re rL r� r� r� Z installedr r� r� r� r: �_lockr� r� r� �propertyr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� � staticmethodrf r r� r� r� r� r� r� r� r r! r� r r r r� r� r! r" r r� r$ r& r8 r8 r8 r9 r� � sx AG r� c @ s` e Zd ZdZdZdZdd� Zdd� Zdd � Zd d � Z d d � Z dd� Z dd� Z dd� Z dd� ZdS )� BaseConnectorzdBasic implementation of connector. State can be: "connecting", "connected", "disconnected" Nr c C s d| _ || _|| _|| _d S )N� disconnected)r� ri �factoryr� )r5 r, r� ri r8 r8 r9 r: K s zBaseConnector.__init__c C s, | j dkr| �� n| j dkr(| j�� dS )z!Disconnect whatever our state is.� connecting� connectedN)r� �stopConnecting� transportZloseConnectionr< r8 r8 r9 � disconnectQ s zBaseConnector.disconnectc C sp | j dkrtd��d| _ | js.| j�� d| _| �� | _}| jdk r`| j� | j|j t � � �| _ | j�| � dS )z"Start connection to remote server.r+ zcan't connect in this stater- r> N)r� � RuntimeError�factoryStartedr, ZdoStartZ_makeTransportr0 r� ri r� �failIfNotConnectedr � TimeoutError� timeoutIDZstartedConnecting)r5 r0 r8 r8 r9 �connectX s zBaseConnector.connectc C s2 | j dkrt�d��d| _ | j�t�� � | `dS )zStop attempting to connect.r- zwe're not trying to connectr+ N)r� r ZNotConnectingErrorr0 r4 Z UserErrorr< r8 r8 r9 r/ f s z BaseConnector.stopConnectingc C s6 | j d k r2z| j �� W n tk r, Y nX | ` d S rh )r6 r6 r� r< r8 r8 r9 � cancelTimeouto s zBaseConnector.cancelTimeoutc C s d| _ | �� | j�|�S )Nr. )r� r8 r, � buildProtocol)r5 Zaddrr8 r8 r9 r9 w s zBaseConnector.buildProtocolc C s@ | � � d | _d| _| j�| |� | jdkr<| j�� d| _d S �Nr+ r )r8 r0 r� r, ZclientConnectionFailed�doStopr3 �r5 �reasonr8 r8 r9 �connectionFailed| s z BaseConnector.connectionFailedc C s2 d| _ | j�| |� | j dkr.| j�� d| _d S r: )r� r, ZclientConnectionLostr; r3 r< r8 r8 r9 r� � s z BaseConnector.connectionLostc C s t t�| j�d ��d S )Nz! did not implement getDestinationr� r< r8 r8 r9 �getDestination� s �z BaseConnector.getDestination)rM re rL r� r6 r3 r: r1 r7 r/ r8 r9 r> r� r? r8 r8 r8 r9 r* A s r* c @ s( e Zd ZdZdZdZdd� Zdd� ZdS )�BasePortziBasic implementation of a ListeningPort. Note: This does not actually implement IListeningPort. Nc C s, t � | j| j�}|�d� t�|�� � |S rE )r� � addressFamily� socketTypeZ setblockingr Z_setCloseOnExec�fileno)r5 �sr8 r8 r9 �createInternetSocket� s z BasePort.createInternetSocketc C s t dt�| j� ��dS )zRaises a RuntimeErrorzdoWrite called on a %sN)r2 r r� r� r< r8 r8 r9 �doWrite� s �zBasePort.doWrite)rM re rL r� rA rB rE rF r8 r8 r8 r9 r@ � s r@ c @ s@ e Zd ZdZdZdd� Zddd�Zdd � Zdd d �Zd d � Z dS )�_SignalReactorMixinaK 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). @type _installSignalHandlers: C{bool} @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. Fc C s~ z ddl }W n tk r, t�d� Y dS X |�|j�|jkrP|� |j| j� |� |j| j � t |d�rz|� |j | j � dS )zI Install the signal handlers for the Twisted event loop. r NzEWarning: signal module unavailable -- not installing signal handlers.�SIGBREAK) �signal� ImportErrorr r� � getsignal�SIGINT�default_int_handlerr� �SIGTERMr� r\ rH r� )r5 rI r8 r8 r9 �_handleSignals� s z"_SignalReactorMixin._handleSignalsTc C s || _ t�| � dS )ao Extend the base implementation in order to remember whether signal handlers should be installed later. @type installSignalHandlers: C{bool} @param installSignalHandlers: A flag which, if set, indicates that handlers for a number of (implementation-defined) signals should be installed during startup. N)�_installSignalHandlersr� r� �r5 �installSignalHandlersr8 r8 r9 r� � s z _SignalReactorMixin.startRunningc C s t �| � | jr| �� dS )z� Extend the base implementation by also installing signal handlers, if C{self._installSignalHandlers} is true. N)r� r� rP rO r< r8 r8 r9 r� � s z'_SignalReactorMixin._reallyStartRunningc C s | j |d� | �� d S )N)rR )r� �mainLooprQ r8 r8 r9 �run� s z_SignalReactorMixin.runc C sf | j rbz0| j r4| �� | �� }| jo&|}| �|� qW n t�d� t�� Y q X t�d� q d S )Nz Unexpected error in main loop.zMain loop terminated.)r� r� r� r� r� r r� rn )r5 �t2�tr8 r8 r9 rS � s z _SignalReactorMixin.mainLoopN)T)T) rM re rL r� rP rO r� r� rT rS r8 r8 r8 r9 rG � s rG )Dr� Z __future__r r r� Zzope.interfacer r r r� �heapqr r r r2 Ztwisted.internet.interfacesr r r r r r r r r Ztwisted.internetr r r r r r Ztwisted.internet._resolverr r r r� r r� r r r r Ztwisted.python.compatr r Ztwisted.python.runtimer rf r! Ztwisted.internet.deferr" r# Ztwisted.python._oldstyler$ r% r& �objectrg r� r� r� r� r* ZFileDescriptorr@ rG �__all__r8 r8 r8 r9 �<module> sX , 9C � z R\
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