Edit File: base_events.cpython-37.pyc
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N)r� )rR r r r �_write_to_self� s z BaseEventLoop._write_to_selfc C s t �dS )zProcess selector events.N)r� )rR � event_listr r r �_process_events� s z BaseEventLoop._process_eventsc C s | j rtd��d S )NzEvent loop is closed)r� rX )rR r r r r� � s zBaseEventLoop._check_closedc C s* | j �|� | �� s&| �| j|�� � d S )N)r� �discardr� �call_soon_threadsafer� �aclose)rR �agenr r r �_asyncgen_finalizer_hook� s z&BaseEventLoop._asyncgen_finalizer_hookc C s. | j r tjd|�d�t| d� | j�|� d S )Nzasynchronous generator z3 was scheduled after loop.shutdown_asyncgens() call)�source)r� �warnings�warn�ResourceWarningr� �add)rR r� r r r �_asyncgen_firstiter_hook� s z&BaseEventLoop._asyncgen_firstiter_hookc � s� d| _ t| j�sdS t| j�}| j�� tjdd� |D �d| d��I dH }x8t||�D ]*\}}t|t �rV| � d|��||d�� qVW dS )z,Shutdown all active asynchronous generators.TNc S s g | ] }|� � �qS r )r� )�.0Zagr r r � <listcomp>� s z4BaseEventLoop.shutdown_asyncgens.<locals>.<listcomp>)Zreturn_exceptionsrr z;an error occurred during closing of asynchronous generator )�messager? Zasyncgen) r� �lenr� r� �clearr �gather�zipr rA �call_exception_handler)rR Z closing_agensZresults�resultr� r r r �shutdown_asyncgens� s z BaseEventLoop.shutdown_asyncgensc C s( | � � rtd��t�� d k r$td��d S )Nz"This event loop is already runningz7Cannot run the event loop while another loop is running)r� rX r Z_get_running_loop)rR r r r �_check_runnung s z BaseEventLoop._check_runnungc C s� | � � | �� | �| j� t�� | _t�� }tj | j | j d� z$t � | � x| �� | jrNP qNW W dd| _d| _t � d� | �d� tj |� X dS )zRun until stop() is called.)� firstiter� finalizerNF)r� r� � _set_coroutine_origin_tracking�_debug� threading� get_identr� �sys�get_asyncgen_hooks�set_asyncgen_hooksr� r� r Z_set_running_loop� _run_oncer� )rR Zold_agen_hooksr r r � run_forever s$ zBaseEventLoop.run_foreverc C s� | � � | �� t�|� }tj|| d�}|r4d|_|�t� z<y | � � W n* |rp|� � rp|� � sp|� � � Y nX W d|� t� X |� � s�td��|�� S )a\ Run until the Future is done. If the argument is a coroutine, it is wrapped in a Task. WARNING: It would be disastrous to call run_until_complete() with the same coroutine twice -- it would wrap it in two different Tasks and that can't be good. Return the Future's result, or raise its exception. )rr FNz+Event loop stopped before Future completed.)r� r� r Zisfuturer Z ensure_futureZ_log_destroy_pendingZadd_done_callbackrE r� r r> r? Zremove_done_callbackrX r� )rR ZfutureZnew_taskr r r �run_until_complete' s" z BaseEventLoop.run_until_completec C s d| _ dS )z�Stop running the event loop. Every callback already scheduled will still run. This simply informs run_forever to stop looping after a complete iteration. TN)r� )rR r r r rB M s zBaseEventLoop.stopc C sj | � � rtd��| jrdS | jr,t�d| � d| _| j�� | j�� | j }|dk rfd| _ |j dd� dS )z�Close the event loop. This clears the queues and shuts down the executor, but does not wait for the executor to finish. The event loop must not be running. z!Cannot close a running event loopNzClose %rTF)�wait) r� rX r� r� r �debugr� r� r� r� Zshutdown)rR �executorr r r r� U s zBaseEventLoop.closec C s | j S )z*Returns True if the event loop was closed.)r� )rR r r r r� k s zBaseEventLoop.is_closedc C s2 | � � s.tjd| ��t| d� | �� s.| �� d S )Nzunclosed event loop )r� )r� r� r� r� r� r� )rR r r r �__del__o s zBaseEventLoop.__del__c C s | j dk S )z*Returns True if the event loop is running.N)r� )rR r r r r� v s zBaseEventLoop.is_runningc C s t �� S )z�Return the time according to the event loop's clock. This is a float expressed in seconds since an epoch, but the epoch, precision, accuracy and drift are unspecified and may differ per event loop. )r� r� )rR r r r r� z s zBaseEventLoop.time)�contextc G s2 | j | �� | |f|�d|i�}|jr.|jd= |S )a8 Arrange for a callback to be called at a given time. Return a Handle: an opaque object with a cancel() method that can be used to cancel the call. The delay can be an int or float, expressed in seconds. It is always relative to the current time. Each callback will be called exactly once. If two callbacks are scheduled for exactly the same time, it undefined which will be called first. Any positional arguments after the callback will be passed to the callback when it is called. r� r� )�call_atr� r� )rR Zdelay�callbackr� r� �timerr r r � call_later� s zBaseEventLoop.call_laterc G sZ | � � | jr"| �� | �|d� t�|||| |�}|jrB|jd= t�| j |� d|_ |S )z|Like call_later(), but uses an absolute time. Absolute time corresponds to the event loop's time() method. r� r� T) r� r� � _check_thread�_check_callbackr � TimerHandler� �heapq�heappushr� )rR �whenr� r� r� r� r r r r� � s zBaseEventLoop.call_atc G sB | � � | jr"| �� | �|d� | �|||�}|jr>|jd= |S )aT Arrange for a callback to be called as soon as possible. This operates as a FIFO queue: callbacks are called in the order in which they are registered. Each callback will be called exactly once. Any positional arguments after the callback will be passed to the callback when it is called. � call_soonr� )r� r� r� r� � _call_soonr� )rR r� r� r� r r r r r� � s zBaseEventLoop.call_soonc C sD t �|�st �|�r$td|� d���t|�s@td|� d|����d S )Nz coroutines cannot be used with z()z"a callable object was expected by z(), got )r Z iscoroutineZiscoroutinefunctionr1 r� )rR r� �methodr r r r� � s z BaseEventLoop._check_callbackc C s. t �||| |�}|jr |jd= | j�|� |S )Nr� )r �Handler� r� r5 )rR r� r� r� r r r r r� � s zBaseEventLoop._call_soonc C s, | j dkrdS t�� }|| j kr(td��dS )ao Check that the current thread is the thread running the event loop. Non-thread-safe methods of this class make this assumption and will likely behave incorrectly when the assumption is violated. Should only be called when (self._debug == True). The caller is responsible for checking this condition for performance reasons. NzMNon-thread-safe operation invoked on an event loop other than the current one)r� r� r� rX )rR Z thread_idr r r r� � s zBaseEventLoop._check_threadc G sB | � � | jr| �|d� | �|||�}|jr6|jd= | �� |S )z"Like call_soon(), but thread-safe.r� r� )r� r� r� r� r� r� )rR r� r� r� r r r r r� � s z"BaseEventLoop.call_soon_threadsafec G sZ | � � | jr| �|d� |d kr@| j}|d kr@tj�� }|| _tj|j|f|�� | d�S )N�run_in_executor)rr ) r� r� r� r� � concurrentr ZThreadPoolExecutorZ wrap_futureZsubmit)rR r� �funcr� r r r r� � s z BaseEventLoop.run_in_executorc C s || _ d S )N)r� )rR r� r r r �set_default_executor� s z"BaseEventLoop.set_default_executorc C s� |� d|��g}|r$|� d|��� |r8|� d|��� |rL|� d|��� |r`|� d|��� d�|�}t�d|� | �� }t�||||||�} | �� | } d|� d | d d �d | ��}| | jkr�t�|� n t�|� | S ) N�:zfamily=ztype=zproto=zflags=z, zGet address info %szGetting address info z took g @�@z.3fzms: ) r5 �joinr r� r� r! � getaddrinfor� �info) rR r7 r8 r9 r: r; �flags�msg�t0Zaddrinfo�dtr r r �_getaddrinfo_debug� s& z BaseEventLoop._getaddrinfo_debugr )r9 r: r; r c � s2 | j r| j}ntj}| �d |||||||�I d H S )N)r� r r! r r� )rR r7 r8 r9 r: r; r Z getaddr_funcr r r r s zBaseEventLoop.getaddrinfoc � s | � d tj||�I d H S )N)r� r! � getnameinfo)rR Zsockaddrr r r r r s zBaseEventLoop.getnameinfo)�fallbackc � s� | j r|�� dkrtd��| �||||� y| �||||�I d H S tjk rj } z |sZ� W d d }~X Y nX | �||||�I d H S )Nr z the socket must be non-blocking)r� Z gettimeoutr" �_check_sendfile_params�_sock_sendfile_nativer �SendfileNotAvailableError�_sock_sendfile_fallback)rR r& �file�offset�countr rD r r r � sock_sendfile s zBaseEventLoop.sock_sendfilec � s t �d|�d���d S )Nz-syscall sendfile is not available for socket z and file {file!r} combination)r r )rR r& r r r r r r r , s z#BaseEventLoop._sock_sendfile_nativec � s� |r|� |� |r t|tj�ntj}t|�}d}ztxn|rPt|| |�}|dkrPP t|�d |� }| �d |j|�I d H } | s|P | �||d | � �I d H || 7 }q4W |S |dkr�t |d�r�|� || � X d S )Nr �seek) r �minr Z!SENDFILE_FALLBACK_READBUFFER_SIZE� bytearray� memoryviewr� �readintoZ sock_sendallr ) rR r& r r r � blocksize�buf� total_sent�view�readr r r r 3 s( z%BaseEventLoop._sock_sendfile_fallbackc C s� dt |dd�krtd��|jtjks,td��|d k rbt|t�sLtd�|���|dkrbtd�|���t|t�sztd�|���|dk r�td�|���d S )N�b�modez$file should be opened in binary modez+only SOCK_STREAM type sockets are supportedz+count must be a positive integer (got {!r})r z0offset must be a non-negative integer (got {!r})) r r" r: r! r- r r0 r1 �format)rR r& r r r r r r r M s& z$BaseEventLoop._check_sendfile_params)�sslr9 r; r r& � local_addrr� rv c � s | dk r|st d��| dkr0|r0|s,t d��|} | dk rD|sDt d��|dk sV|dk �r�|dk rft d��| j||f|tj||| d�I dH } | s�td��| dk r�| j| |tj||| d�I dH } | s�td��g }�x�| D �]J\}}}}}y�tj|||d�}|�d � | dk �r�x�| D ]r\}}}}}y|�|� P W nP tk �r| } z0d |�d |j�� � �}t|j |�}|� |� W dd}~X Y nX �qW |� � d}w�| j �r�t �d ||� | �||�I dH W n^ tk �r� } z |dk �r�|� � |� |� W dd}~X Y q� |dk �r|� � � Y q�X P q�W t|�d k�r:|d �nJt|d �� t� fdd�|D ���rf|d �td�d�dd� |D �����n.|dk�r�t d��|jtjk�r�t d|����| j|||| | d�I dH \}}| j �r�|�d�}t �d|||||� ||fS )a� Connect to a TCP server. Create a streaming transport connection to a given Internet host and port: socket family AF_INET or socket.AF_INET6 depending on host (or family if specified), socket type SOCK_STREAM. protocol_factory must be a callable returning a protocol instance. This method is a coroutine which will try to establish the connection in the background. When successful, the coroutine returns a (transport, protocol) pair. Nz+server_hostname is only meaningful with sslz:You must set server_hostname when using ssl without a hostz1ssl_handshake_timeout is only meaningful with sslz8host/port and sock can not be specified at the same time)r9 r: r; r rr z!getaddrinfo() returned empty list)r9 r: r; Fz*error while attempting to bind on address z: zconnect %r to %rr r c 3 s | ]}t |�� kV qd S )N)r )r� rD )�modelr r � <genexpr>� s z2BaseEventLoop.create_connection.<locals>.<genexpr>zMultiple exceptions: {}z, c s s | ]}t |�V qd S )N)r )r� rD r r r r$ � s z5host and port was not specified and no sock specifiedz"A Stream Socket was expected, got )rv r! z %r connected to %s:%r: (%r, %r))r" �_ensure_resolvedr! r- r% � setblocking�bind�strerror�lower�errnor5 r� r� r r� � sock_connectr� r �allr r r: � _create_connection_transport�get_extra_info)rR rt r7 r8 r! r9 r; r r& r" r� rv �infosZ laddr_infos� exceptionsr: Zcnamer� �_ZladdrrD r rY r� r )r# r �create_connectionb s� " z BaseEventLoop.create_connectionc � s� |� d� |� }| �� }|rHt|t�r*d n|} | j||| ||||d�} n| �|||�} y|I d H W n | �� � Y nX | |fS )NF)r� r� rv )r& rP r �boolr� r� r� ) rR r& rt r! r� r� rv r� r� r� rY r r r r- � s z*BaseEventLoop._create_connection_transportc � s� |� � rtd��t|dtjj�}|tjjkr:td|����|tjjkr�y| �||||�I dH S tj k r� } z |sv� W dd}~X Y nX |s�td|����| � ||||�I dH S )a� Send a file to transport. Return the total number of bytes which were sent. The method uses high-performance os.sendfile if available. file must be a regular file object opened in binary mode. offset tells from where to start reading the file. If specified, count is the total number of bytes to transmit as opposed to sending the file until EOF is reached. File position is updated on return or also in case of error in which case file.tell() can be used to figure out the number of bytes which were sent. fallback set to True makes asyncio to manually read and send the file when the platform does not support the sendfile syscall (e.g. Windows or SSL socket on Unix). Raise SendfileNotAvailableError if the system does not support sendfile syscall and fallback is False. zTransport is closingZ_sendfile_compatiblez(sendfile is not supported for transport NzHfallback is disabled and native sendfile is not supported for transport ) rU rX r r Z _SendfileModeZ UNSUPPORTEDZ TRY_NATIVE�_sendfile_nativer r �_sendfile_fallback)rR rY r r r r r rD r r r �sendfile s& zBaseEventLoop.sendfilec � s t �d��d S )Nz!sendfile syscall is not supported)r r )rR rS r r r r r r r4 / s z BaseEventLoop._sendfile_nativec � s� |r|� |� |r t|d�nd}t|�}d}t|�}z~xx|rVt|| |�}|dkrV|S t|�d |� } | �d |j| �I d H } | s�|S |�� I d H |�| d | � � || 7 }q8W W d |dkr�t |d�r�|� || � |� � I d H X d S )Ni @ r r ) r r r rH r r� r rW �writer rd ) rR rS r r r r r r r; r r r r r r5 3 s, z BaseEventLoop._sendfile_fallback)r� r� rv c � s� t dkrtd��t|t j�s*td|����t|dd�sFtd|�d���| �� }tj| ||||||dd�}|� � |� |� | � |j |�} | � |j �} y|I dH W n. tk r� |�� | �� | �� � Y nX |jS ) zzUpgrade transport to TLS. Return a new transport that *protocol* should start using immediately. Nz"Python ssl module is not availablez@sslcontext is expected to be an instance of ssl.SSLContext, got Z_start_tls_compatibleFz transport z is not supported by start_tls())rv r� )r! rX r Z SSLContextr1 r rP r Z SSLProtocolrM rN r� rZ rb rA r� rc Z_app_transport) rR rY r� r� r� r� rv r� Z ssl_protocolZ conmade_cbZ resume_cbr r r � start_tlsL s4 zBaseEventLoop.start_tls)r9 r; r � reuse_address� reuse_port�allow_broadcastr& c � s� | dk r�| j tjkr"td| ����� s>�s>|s>|s>|s>|s>| r~t� �|||||| d�} d�dd� | �� D ��} td| � d���| �d � d} �n�� s��s�|d kr�td ��||fd ff}�nBttd ��r|tj k�rx*� �fD ] }|dk r�t |t �s�t d��q�W ||f� �fff}n�t �� }x�d � fd�ffD ]�\}}|dk �r,t |t��rXt|�dk�s`td��| j||tj||| d�I dH }|�s�td��xB|D ]:\}}}}}||f}||k�r�ddg||< ||| |< �q�W �q,W � �fdd�|�� D �}|�s�td��g }|tk �r*|�rtd��ntjdtdd� �x|D ]�\\}}\}}d} d} yxtj|tj|d�} |�rlt| � | �r�| �tjtjd� | �d � � �r�| � |� ��r�| �s�| � | |�I dH |} W n^ tk �r } z | dk �r�| � � |� |� W dd}~X Y n" | dk �r| � � � Y nX P �q2W |d �|� } | � � } | �!| | | | �} | j"�r�� �rrt#�$d� �| | � nt#�%d �| | � y| I dH W n | � � � Y nX | | fS ) zCreate datagram connection.Nz A UDP Socket was expected, got )r" � remote_addrr9 r; r r9 r: r; z, c s s$ | ] \}}|r|� d |� �V qdS )�=Nr )r� �k�vr r r r$ � s z9BaseEventLoop.create_datagram_endpoint.<locals>.<genexpr>zKsocket modifier keyword arguments can not be used when sock is specified. (�)Fr zunexpected address family)NN�AF_UNIXzstring is expectedr � z2-tuple is expected)r9 r: r; r rr z!getaddrinfo() returned empty listc s8 g | ]0\}}� r |d dks�r,|d dks||f�qS )r Nr r )r� �keyZ addr_pair)r" r< r r r� � s z:BaseEventLoop.create_datagram_endpoint.<locals>.<listcomp>z can not get address informationz~Passing `reuse_address=True` is no longer supported, as the usage of SO_REUSEPORT in UDP poses a significant security concern.zcThe *reuse_address* parameter has been deprecated as of 3.7.6 and is scheduled for removal in 3.11.)� stacklevel)r9 r: r; z@Datagram endpoint local_addr=%r remote_addr=%r created: (%r, %r)z2Datagram endpoint remote_addr=%r created: (%r, %r))&r: r! r. r" �dictr �itemsr& r rA r r r1 r� � OrderedDict�tupler� r{ r% r% �_unsetr� r� �DeprecationWarningr' r# r$ Z SO_BROADCASTr' r+ r� r5 rP r� r� r r r� ) rR rt r" r< r9 r; r r9 r: r; r& ZoptsZproblemsZr_addrZaddr_pairs_infoZaddrZ addr_infos�idxr/ Zfamr1 Zpror� rC r0 Z local_addressZremote_addressrD r� r� rY r )r" r< r �create_datagram_endpointz s� z&BaseEventLoop.create_datagram_endpointc � s\ |d d� \}}t |||||f|dd � �� } | d k r<| gS |j||||||d�I d H S d S )NrB )r9 r: r; r )r= r ) rR r� r9 r: r; r rr r7 r8 r r r r r% s z BaseEventLoop._ensure_resolvedc � s8 | j ||f|tj|| d�I d H }|s4td|�d���|S )N)r9 r: r rr z getaddrinfo(z) returned empty list)r% r! r- r% )rR r7 r8 r9 r r/ r r r �_create_server_getaddrinfo s z(BaseEventLoop._create_server_getaddrinfor ) r9 r r& ru r! r9 r: rv r� c � s� t |t�rtd��| dk r*|dkr*td��|dk s<�dk �r*|dk rLtd��| dkrhtjdkoftjdk} g } |dkr|dg}n$t |t�s�t |t j j �s�|g}n|}� ���fdd �|D �}t j |d �i�I dH }ttj�|��}d }�z"�x|D �] }|\}}}}}yt�|||�}W n6 tjk �rJ �j�rDtjd |||d d� w�Y nX | �|� | �rn|�tjtjd � | �r|t|� t �r�|tj k�r�t td��r�|�tj tj d � y|�!|� W q� t"k �r� } z t"|j#d||j$�%� f �d�W dd}~X Y q�X q�W d }W d|�s&x| D ]}|�&� �qW X n4|dk�r<td��|j'tj(k�rXtd|����|g} x| D ]}|�)d � �qdW t*�| |||| �}| �r�|�+� t j,d�d�I dH �j�r�t�-d|� |S )a1 Create a TCP server. The host parameter can be a string, in that case the TCP server is bound to host and port. The host parameter can also be a sequence of strings and in that case the TCP server is bound to all hosts of the sequence. If a host appears multiple times (possibly indirectly e.g. when hostnames resolve to the same IP address), the server is only bound once to that host. Return a Server object which can be used to stop the service. This method is a coroutine. z*ssl argument must be an SSLContext or NoneNz1ssl_handshake_timeout is only meaningful with sslz8host/port and sock can not be specified at the same time�posix�cygwinr* c s g | ]}�j |�� �d ��qS ))r9 r )rM )r� r7 )r9 r r8 rR r r r� F s z/BaseEventLoop.create_server.<locals>.<listcomp>rr Fz:create_server() failed to create socket.socket(%r, %r, %r)T)�exc_info� IPPROTO_IPV6z0error while attempting to bind on address %r: %sz)Neither host/port nor sock were specifiedz"A Stream Socket was expected, got r )rr z %r is serving).r r3 r1 r" �os�namer� �platformr r� �abc�Iterabler r� �set� itertools�chain� from_iterabler! �errorr� r �warningr5 r# r$ Z SO_REUSEADDRr' r4 r r rQ Z IPV6_V6ONLYr' r% r* r( r) r� r: r- r& rh r� r� r )rR rt r7 r8 r9 r r& ru r! r9 r: rv r� rs ZhostsZfsr/ Z completedZresr< Zsocktyper; Z canonnameZsa�errr� r )r9 r r8 rR r � create_server s� * zBaseEventLoop.create_server)r! rv c � sv |j tjkrtd|����|dk r.|s.td��| j|||dd|d�I dH \}}| jrn|�d�}t�d|||� ||fS ) a Handle an accepted connection. This is used by servers that accept connections outside of asyncio but that use asyncio to handle connections. This method is a coroutine. When completed, the coroutine returns a (transport, protocol) pair. z"A Stream Socket was expected, got Nz1ssl_handshake_timeout is only meaningful with sslr* T)r� rv r! z%r handled: (%r, %r)) r: r! r- r" r- r� r. r r� )rR rt r& r! rv rY r� r r r �connect_accepted_socket� s z%BaseEventLoop.connect_accepted_socketc � sd |� }| � � }| �|||�}y|I d H W n |�� � Y nX | jr\t�d|�� ||� ||fS )Nz Read pipe %r connected: (%r, %r))rP r� r� r� r r� �fileno)rR rt r� r� r� rY r r r �connect_read_pipe� s z BaseEventLoop.connect_read_pipec � sd |� }| � � }| �|||�}y|I d H W n |�� � Y nX | jr\t�d|�� ||� ||fS )Nz!Write pipe %r connected: (%r, %r))rP r� r� r� r r� r` )rR rt r� r� r� rY r r r �connect_write_pipe� s z BaseEventLoop.connect_write_pipec C s� |g}|d k r"|� dt|�� �� |d k rJ|tjkrJ|� dt|�� �� n8|d k rf|� dt|�� �� |d k r�|� dt|�� �� t�d�|�� d S )Nzstdin=zstdout=stderr=zstdout=zstderr=� )r5 r r r r r� r )rR r r� r� r� r r r r �_log_subprocess� s z BaseEventLoop._log_subprocess)r� r� r� �universal_newlinesr� r� c � s� t |ttf�std��|r"td��|s.td��|dkr>td��|� } d } | jrfd| } | �| |||� | j| |d||||f| �I d H } | jr�| d k r�t�d| | � | | fS ) Nzcmd must be a stringz universal_newlines must be Falsezshell must be Truer zbufsize must be 0zrun shell command %rTz%s: %r) r r/ r r" r� rd r� r r ) rR rt �cmdr� r� r� re r� r� r� r� � debug_logrY r r r �subprocess_shell� s$ z BaseEventLoop.subprocess_shellc � s� |r t d��|rt d��|dkr(t d��|f| } x.| D ]&} t| ttf�s8tdt| �j� ���q8W |� } d }| jr�d|��}| �||||� | j | | d||||f| �I d H }| jr�|d k r�t � d||� || fS ) Nz universal_newlines must be Falsezshell must be Falser zbufsize must be 0z6program arguments must be a bytes or text string, not zexecute program Fz%s: %r) r" r r r/ r1 r: re r� rd r� r r )rR rt Zprogramr� r� r� re r� r� r� r� Z popen_args�argr� rg rY r r r �subprocess_exec� s, z BaseEventLoop.subprocess_execc C s | j S )zKReturn an exception handler, or None if the default one is in use. )r� )rR r r r �get_exception_handler s z#BaseEventLoop.get_exception_handlerc C s( |dk r t |�s td|����|| _dS )a� Set handler as the new event loop exception handler. If handler is None, the default exception handler will be set. If handler is a callable object, it should have a signature matching '(loop, context)', where 'loop' will be a reference to the active event loop, 'context' will be a dict object (see `call_exception_handler()` documentation for details about context). Nz+A callable object or None is expected, got )r� r1 r� )rR Zhandlerr r r �set_exception_handler s z#BaseEventLoop.set_exception_handlerc C s |� d�}|sd}|� d�}|dk r6t|�||jf}nd}d|kr`| jdk r`| jjr`| jj|d< |g}x�t|�D ]�}|dkr~qp|| }|dkr�d �t�|��}d }||� � 7 }n2|dkr�d �t�|��}d }||� � 7 }nt |�}|� |� d |� �� qpW t j d �|�|d� dS )aE Default exception handler. This is called when an exception occurs and no exception handler is set, and can be called by a custom exception handler that wants to defer to the default behavior. This default handler logs the error message and other context-dependent information. In debug mode, a truncated stack trace is also appended showing where the given object (e.g. a handle or future or task) was created, if any. The context parameter has the same meaning as in `call_exception_handler()`. r� z!Unhandled exception in event loopr? NFZsource_tracebackZhandle_traceback> r? r� r* z+Object created at (most recent call last): z+Handle created at (most recent call last): z: � )rP )�getr: � __traceback__r� r� �sortedr � traceback� format_list�rstripr r5 r r[ ) rR r� r� r? rP Z log_linesrC �value�tbr r r �default_exception_handler# s6 z'BaseEventLoop.default_exception_handlerc C s� | j dkr>y| �|� W q� tk r: tjddd� Y q�X nny| � | |� W n\ tk r� } z>y| �d||d�� W n" tk r� tjddd� Y nX W dd}~X Y nX dS )aD Call the current event loop's exception handler. The context argument is a dict containing the following keys: - 'message': Error message; - 'exception' (optional): Exception object; - 'future' (optional): Future instance; - 'task' (optional): Task instance; - 'handle' (optional): Handle instance; - 'protocol' (optional): Protocol instance; - 'transport' (optional): Transport instance; - 'socket' (optional): Socket instance; - 'asyncgen' (optional): Asynchronous generator that caused the exception. New keys maybe introduced in the future. Note: do not overload this method in an event loop subclass. For custom exception handling, use the `set_exception_handler()` method. Nz&Exception in default exception handlerT)rP z$Unhandled error in exception handler)r� r? r� zeException in default exception handler while handling an unexpected error in custom exception handler)r� rv rA r r[ )rR r� rD r r r r� U s" z$BaseEventLoop.call_exception_handlerc C s> t |tj�std��|jr dS t |tj�r.t�| j�|� dS )z3Add a Handle to _scheduled (TimerHandle) or _ready.zA Handle is required hereN)r r r� r{ � _cancelledr� r� r5 )rR r r r r � _add_callback� s zBaseEventLoop._add_callbackc C s | � |� | �� dS )z6Like _add_callback() but called from a signal handler.N)rx r� )rR r r r r �_add_callback_signalsafe� s z&BaseEventLoop._add_callback_signalsafec C s |j r| jd7 _dS )z3Notification that a TimerHandle has been cancelled.r N)r� r� )rR r r r r �_timer_handle_cancelled� s z%BaseEventLoop._timer_handle_cancelledc C s� t | j�}|tkrd| j| tkrdg }x&| jD ] }|jr>d|_q,|�|� q,W t�|� || _d| _n8x6| jr�| jd jr�| jd8 _t� | j�}d|_qfW d}| j s�| j r�d}n*| jr�| jd j }t td|| �� �t�}| j�r�|dk�r�| �� }| j�|�}| �� | }|dk�r tj} ntj} t |�} |dk�rNt�| d|d | � nD| �rpt�| d|d |d | � n"|dk�r�t�| d |d |d � n | j�|�}| �|� | �� | j } xD| j�r�| jd }|j | k�r�P t� | j�}d|_| j �|� �q�W t | j �} x�t| �D ]|} | j � � }|j�r,�q| j�r�zD|| _ | �� }|� � | �� | }|| j k�rvt� d t!|�|� W dd| _ X n|� � �qW d}dS ) z�Run one full iteration of the event loop. This calls all currently ready callbacks, polls for I/O, schedules the resulting callbacks, and finally schedules 'call_later' callbacks. Fr r Ng �?z poll took %.3f ms: %s eventsg @�@z$poll %.3f ms took %.3f ms: %s eventsz"poll %.3f ms took %.3f ms: timeoutz Executing %s took %.3f seconds)"r� r� � _MIN_SCHEDULED_TIMER_HANDLESr� �%_MIN_CANCELLED_TIMER_HANDLES_FRACTIONrw r5 r� �heapify�heappopr� r� Z_whenr �maxr� �MAXIMUM_SELECT_TIMEOUTr� Z _selectorZselect�logging�INFO�DEBUGr �logr� r� �range�popleftr� Z_runr� r\ r )rR Z sched_countZ new_scheduledr Ztimeoutr� r r� r �levelZneventZend_timeZntodo�ir r r r� � s� zBaseEventLoop._run_oncec C sH t |�t | j�krd S |r2t�� | _t�tj� n t�| j� || _d S )N)r3 r� r� �#get_coroutine_origin_tracking_depthr� �#set_coroutine_origin_tracking_depthr ZDEBUG_STACK_DEPTH)rR �enabledr r r r� � s z,BaseEventLoop._set_coroutine_origin_trackingc C s | j S )N)r� )rR r r r r� s zBaseEventLoop.get_debugc C s || _ | �� r | �| j|� d S )N)r� r� r� r� )rR r� r r r r� s zBaseEventLoop.set_debug)N)N)NNN)NN)NN)N)r )r N)NN)FN)r N)NN)NN)Pre rf rg rT rz rP r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rB r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r r r r r r2 r- r6 r4 r5 r8 rI rL r! r- r% rM r2 Z AI_PASSIVEr^ r_ ra rb rd r r rh rj rk rl rv r� rx ry rz r� r� r� r� r r r r r e s� & ., l23cr )r r )2�__doc__r� Zcollections.abcZconcurrent.futuresr� r� rX r� rR r! r r� r� rq r� r� r� r! � ImportErrorr* r r r r r r r r r� r �__all__r{ r| r r4 r� �objectrI r r r' r= rE rG ZProtocolrH ZAbstractServerrh ZAbstractEventLoopr r r r r �<module> sZ ; Do
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