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� j f؆ � @ s� d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d d d d g Z e j d k ree d � � n d d � Z Gd d � d e j � Z e e d � r�d d � Z n d d l Z d d � Z Gd d � d e j! � Z" Gd! d" � d" e j# e j$ � Z% e e d# � re j& Z' n d d l Z d$ d% � Z' Gd& d' � d' e j( � Z) Gd( d � d � Z* Gd) d* � d* e* � Z+ Gd+ d � d e+ � Z, Gd, d � d e+ � Z- Gd- d. � d. e j. � Z/ e Z0 e/ Z1 d S)/z2Selector event loop for Unix with signal handling.� N� )� base_events)�base_subprocess)�compat)� constants)� coroutines)�events)�futures)�selector_events)� selectors)� transports)� coroutine)�logger�SelectorEventLoop�AbstractChildWatcher�SafeChildWatcher�FastChildWatcher�DefaultEventLoopPolicy�win32z+Signals are not really supported on Windowsc C s d S)zDummy signal handler.N� )�signumZframer r �8/opt/alt/python34/lib64/python3.4/asyncio/unix_events.py�_sighandler_noop% s r c s e Z d Z d Z d � f d d � Z d d � Z � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d d d � Z d d d d � Z e d d d � � Z d d � Z e d d d d d d d d � � Z e d d d d d! d d d" d# �� Z � S)$�_UnixSelectorEventLoopzdUnix event loop. Adds signal handling and UNIX Domain Socket support to SelectorEventLoop. Nc s t � j | � i | _ d S)N)�super�__init__�_signal_handlers)�selfZselector)� __class__r r r 0 s z _UnixSelectorEventLoop.__init__c C s t j � S)N)�socketZ socketpair)r r r r � _socketpair4 s z"_UnixSelectorEventLoop._socketpairc s8 t � j � x$ t | j � D] } | j | � q Wd S)N)r �close�listr �remove_signal_handler)r �sig)r r r r! 7 s z _UnixSelectorEventLoop.closec C s. x' | D] } | s q n | j | � q Wd S)N)�_handle_signal)r �datar r r r �_process_self_data< s z)_UnixSelectorEventLoop._process_self_datac + G s� t j | � s t j | � r- t d � � n | j | � | j � y t j | j j � � Wn= t t f k r� } z t t | � � � WYd d } ~ Xn Xt j | | | � } | | j | <y$ t j | t � t j | d � Wn� t k r�} z� | j | =| j s^y t j d � Wq^t t f k rZ} z t j d | � WYd d } ~ Xq^Xn | j t j k r�t d j | � � � n � WYd d } ~ Xn Xd S)z�Add a handler for a signal. UNIX only. Raise ValueError if the signal number is invalid or uncatchable. Raise RuntimeError if there is a problem setting up the handler. z3coroutines cannot be used with add_signal_handler()NFr z set_wakeup_fd(-1) failed: %szsig {} cannot be caught���)r Z iscoroutineZiscoroutinefunction� TypeError� _check_signalZ _check_closed�signal� set_wakeup_fdZ_csock�fileno� ValueError�OSError� RuntimeError�strr ZHandler r � siginterruptr �info�errno�EINVAL�format)r r$ �callback�args�exc�handleZnexcr r r �add_signal_handlerC s0 % &z)_UnixSelectorEventLoop.add_signal_handlerc C sL | j j | � } | d k r" d S| j r; | j | � n | j | � d S)z2Internal helper that is the actual signal handler.N)r �getZ _cancelledr# Z_add_callback_signalsafe)r r$ r: r r r r% p s z%_UnixSelectorEventLoop._handle_signalc & C s | j | � y | j | =Wn t k r3 d SYn X| t j k rO t j } n t j } y t j | | � WnR t k r� } z2 | j t j k r� t d j | � � � n � WYd d } ~ Xn X| j s y t j d � Wq t t f k r} z t j d | � WYd d } ~ Xq Xn d S)zwRemove a handler for a signal. UNIX only. Return True if a signal handler was removed, False if not. Fzsig {} cannot be caughtNr z set_wakeup_fd(-1) failed: %sTr( )r* r �KeyErrorr+ �SIGINT�default_int_handler�SIG_DFLr/ r4 r5 r0 r6 r, r. r r3 )r r$ Zhandlerr9 r r r r# z s( &z,_UnixSelectorEventLoop.remove_signal_handlerc C sh t | t � s' t d j | � � � n d | k oA t j k n sd t d j | t j � � � n d S)z�Internal helper to validate a signal. Raise ValueError if the signal number is invalid or uncatchable. Raise RuntimeError if there is a problem setting up the handler. z sig must be an int, not {!r}r zsig {} out of range(1, {})N)� isinstance�intr) r6 r+ �NSIGr. )r r$ r r r r* � s z$_UnixSelectorEventLoop._check_signalc C s t | | | | | � S)N)�_UnixReadPipeTransport)r �pipe�protocol�waiter�extrar r r �_make_read_pipe_transport� s z0_UnixSelectorEventLoop._make_read_pipe_transportc C s t | | | | | � S)N)�_UnixWritePipeTransport)r rE rF rG rH r r r �_make_write_pipe_transport� s z1_UnixSelectorEventLoop._make_write_pipe_transportc k s� t j � �� } t j d | � } t | | | | | | | | d | d | | �} | j | j � | j | � y | Dd HWn+ t k r� } z | } WYd d } ~ Xn Xd } | d k r� | j � | j � Dd H| � n Wd QX| S)N�looprG rH ) r �get_child_watcherr ZFuture�_UnixSubprocessTransport�add_child_handlerZget_pid�_child_watcher_callback� Exceptionr! Z_wait)r rF r8 �shell�stdin�stdout�stderr�bufsizerH �kwargs�watcherrG �transpr9 �errr r r �_make_subprocess_transport� s$ z1_UnixSelectorEventLoop._make_subprocess_transportc C s | j | j | � d S)N)Zcall_soon_threadsafeZ_process_exited)r �pid� returncoderY r r r rP � s z._UnixSelectorEventLoop._child_watcher_callback�ssl�sock�server_hostnamec c s | r$ | d k r? t d � � q? n | d k r? t d � � n | d k r� | d k rf t d � � n t j t j t j d � } y& | j d � | j | | � Dd HWq� | j � � Yq� Xn( | d k r� t d � � n | j d � | j | | | | � Dd H\ } } | | f S)Nz/you have to pass server_hostname when using sslz+server_hostname is only meaningful with sslz3path and sock can not be specified at the same timer Fz no path and sock were specified)r. r �AF_UNIX� SOCK_STREAM� setblockingZ sock_connectr! Z _create_connection_transport)r �protocol_factory�pathr^ r_ r` � transportrF r r r �create_unix_connection� s. z-_UnixSelectorEventLoop.create_unix_connection�backlog�d c C s� t | t � r t d � � n | d k r� | d k rE t d � � n t j t j t j � } y | j | � Wq8t k r� } zK | j � | j t j k r� d j | � } t t j | � d � n � WYd d } ~ Xq8| j � � Yq8XnE | d k rt d � � n | j t j k r8t d j | � � � n t j | | g � } | j | � | j d � | j | | | | � | S)Nz*ssl argument must be an SSLContext or Nonez3path and sock can not be specified at the same timez Address {!r} is already in usez-path was not specified, and no sock specifiedz+A UNIX Domain Socket was expected, got {!r}F)rA �boolr) r. r ra rb Zbindr/ r! r4 Z EADDRINUSEr6 Zfamilyr ZServerZlistenrc Z_start_serving) r rd re r_ rh r^ r9 �msgZserverr r r �create_unix_server� s: z)_UnixSelectorEventLoop.create_unix_server)�__name__� __module__� __qualname__�__doc__r r r! r' r; r% r# r* rI rK r r[ rP rg rl r r )r r r * s, - r � set_blockingc C s t j | d � d S)NF)�osrq )�fdr r r �_set_nonblocking s rt c C s< t j | t j � } | t j B} t j | t j | � d S)N)�fcntlZF_GETFLrr � O_NONBLOCKZF_SETFL)rs �flagsr r r rt $ s c s� e Z d Z d Z d d � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e j r� d d � Z n d d d � Z d d � Z d d � Z � S) rD � i Nc s t � j | � | | j d <| | _ | | _ | j � | _ t j | j � j } t j | � p} t j | � p} t j | � s� t d � � n t | j � | | _ d | _ | j j | j j | � | j j | j j | j | j � | d k r| j j t j | d � n d S)NrE z)Pipe transport is for pipes/sockets only.F)r r �_extra�_loop�_piper- �_filenorr �fstat�st_mode�stat�S_ISFIFO�S_ISSOCK�S_ISCHRr. rt � _protocol�_closing� call_soon�connection_made� add_reader� _read_readyr � _set_result_unless_cancelled)r rL rE rF rG rH �mode)r r r r . s& z _UnixReadPipeTransport.__init__c C s� | j j g } | j d k r. | j d � n | j rG | j d � n | j d | j � | j d k r� t j | j j | j t j � } | r� | j d � q� | j d � n | j d � d d j | � S)N�closed�closingzfd=%s�polling�idlez<%s>� ) r rm r{ �appendr� r| r �_test_selector_eventrz � _selectorr Z EVENT_READ�join)r r3 r� r r r �__repr__E s z _UnixReadPipeTransport.__repr__c C s� y t j | j | j � } WnL t t f k r6 Yn� t k rj } z | j | d � WYd d } ~ Xn� X| r� | j j | � nj | j j � r� t j d | � n d | _ | j j | j � | j j | j j � | j j | j d � d S)Nz"Fatal read error on pipe transportz%r was closed by peerT)rr �readr| �max_size�BlockingIOError�InterruptedErrorr/ � _fatal_errorr� Z data_receivedrz � get_debugr r3 r� � remove_readerr� Z eof_received�_call_connection_lost)r r& r9 r r r r� X s # z"_UnixReadPipeTransport._read_readyc C s | j j | j � d S)N)rz r� r| )r r r r � pause_readingj s z$_UnixReadPipeTransport.pause_readingc C s | j j | j | j � d S)N)rz r� r| r� )r r r r �resume_readingm s z%_UnixReadPipeTransport.resume_readingc C s | j S)N)r� )r r r r � is_closingp s z!_UnixReadPipeTransport.is_closingc C s | j s | j d � n d S)N)r� �_close)r r r r r! s s z _UnixReadPipeTransport.closec C s7 | j d k r3 t j d | t � | j j � n d S)Nzunclosed transport %r)r{ �warnings�warn�ResourceWarningr! )r r r r �__del__{ s z _UnixReadPipeTransport.__del__z Fatal error on pipe transportc C s� t | t � rO | j t j k rO | j j � r~ t j d | | d d �q~ n/ | j j i | d 6| d 6| d 6| j d 6� | j | � d S)Nz%r: %s�exc_infoT�message� exceptionrf rF ) rA r/ r4 ZEIOrz r� r �debug�call_exception_handlerr� r� )r r9 r� r r r r� � s ! z#_UnixReadPipeTransport._fatal_errorc C s6 d | _ | j j | j � | j j | j | � d S)NT)r� rz r� r| r� r� )r r9 r r r r� � s z _UnixReadPipeTransport._closec C sD z | j j | � Wd | j j � d | _ d | _ d | _ Xd S)N)r� �connection_lostr{ r! rz )r r9 r r r r� � s z,_UnixReadPipeTransport._call_connection_losti )rm rn ro r� r r� r� r� r� r� r! r �PY34r� r� r� r� r r )r r rD * s rD c s� e Z d Z d d � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e j r� d d � Z n d d � Z d d d � Z d d d � Z d d � Z � S)!rJ Nc sC t � j | | � | | j d <| | _ | j � | _ t j | j � j } t j | � } | p} t j | � p} t j | � s� t d � � n t | j � | | _ g | _ d | _ d | _ | j j | j j | � | s� t j j d � r| j j | j j | j | j � n | d k r?| j j t j | d � n d S)NrE z?Pipe transport is only for pipes, sockets and character devicesr F�aix) r r ry r{ r- r| rr r} r~ r r� r� r� r. rt r� �_buffer� _conn_lostr� rz r� r� �sys�platform� startswithr� r� r r� )r rL rE rF rG rH r� Z is_socket)r r r r � s, z _UnixWritePipeTransport.__init__c C s� | j j g } | j d k r. | j d � n | j rG | j d � n | j d | j � | j d k r� t j | j j | j t j � } | r� | j d � n | j d � | j � } | j d | � n | j d � d d j | � S) Nr� r� zfd=%sr� r� z bufsize=%sz<%s>r� )r rm r{ r� r� r| r r� rz r� r Z EVENT_WRITE�get_write_buffer_sizer� )r r3 r� rV r r r r� � s" z _UnixWritePipeTransport.__repr__c C s t d d � | j D� � S)Nc s s | ] } t | � Vq d S)N)�len)�.0r& r r r � <genexpr>� s z@_UnixWritePipeTransport.get_write_buffer_size.<locals>.<genexpr>)�sumr� )r r r r r� � s z-_UnixWritePipeTransport.get_write_buffer_sizec C sL | j j � r" t j d | � n | j r> | j t � � n | j � d S)Nz%r was closed by peer)rz r� r r3 r� r� �BrokenPipeError)r r r r r� � s z#_UnixWritePipeTransport._read_readyc C sh t | t � r t | � } n | s( d S| j s: | j ro | j t j k r\ t j d � n | j d 7_ d S| j sJy t j | j | � } Wne t t f k r� d } YnH t k r� } z( | j d 7_ | j | d � d SWYd d } ~ Xn X| t | � k rd S| d k r.| | d � } n | j j | j | j � n | j j | � | j � d S)Nz=pipe closed by peer or os.write(pipe, data) raised exception.r r z#Fatal write error on pipe transport)rA � bytearray� memoryviewr� r� r Z!LOG_THRESHOLD_FOR_CONNLOST_WRITESr �warningr� rr �writer| r� r� rQ r� r� rz Z add_writer� _write_readyr� Z_maybe_pause_protocol)r r& �nr9 r r r r� � s2 z _UnixWritePipeTransport.writec C sU d j | j � } | j j � y t j | j | � } Wn~ t t f k rb | j j | � Yn� t k r� } z7 | j d 7_ | j j | j � | j | d � WYd d } ~ Xn� X| t | � k r"| j j | j � | j � | j r | j r | j j | j � | j d � n d S| d k rA| | d � } n | j j | � d S)N� r z#Fatal write error on pipe transportr )r� r� �clearrr r� r| r� r� r� rQ r� rz � remove_writerr� r� Z_maybe_resume_protocolr� r� r� )r r& r� r9 r r r r� s( # z$_UnixWritePipeTransport._write_readyc C s d S)NTr )r r r r � can_write_eof s z%_UnixWritePipeTransport.can_write_eofc C sO | j r d Sd | _ | j sK | j j | j � | j j | j d � n d S)NT)r� r� rz r� r| r� r� )r r r r � write_eof# s z!_UnixWritePipeTransport.write_eofc C s | j S)N)r� )r r r r r� , s z"_UnixWritePipeTransport.is_closingc C s* | j d k r& | j r& | j � n d S)N)r{ r� r� )r r r r r! / s z _UnixWritePipeTransport.closec C s7 | j d k r3 t j d | t � | j j � n d S)Nzunclosed transport %r)r{ r� r� r� r! )r r r r r� 8 s z _UnixWritePipeTransport.__del__c C s | j d � d S)N)r� )r r r r �abort= s z _UnixWritePipeTransport.abortz Fatal error on pipe transportc C s� t | t t f � rC | j j � rr t j d | | d d �qr n/ | j j i | d 6| d 6| d 6| j d 6� | j | � d S)Nz%r: %sr� Tr� r� rf rF ) rA r� �ConnectionResetErrorrz r� r r� r� r� r� )r r9 r� r r r r� @ s z$_UnixWritePipeTransport._fatal_errorc C sb d | _ | j r( | j j | j � n | j j � | j j | j � | j j | j | � d S)NT) r� r� rz r� r| r� r� r� r� )r r9 r r r r� N s z _UnixWritePipeTransport._closec C sD z | j j | � Wd | j j � d | _ d | _ d | _ Xd S)N)r� r� r{ r! rz )r r9 r r r r� V s z-_UnixWritePipeTransport._call_connection_lost)rm rn ro r r� r� r� r� r� r� r� r� r! r r� r� r� r� r� r� r r )r r rJ � s ! ! rJ �set_inheritablec C si t t d d � } t j | t j � } | sJ t j | t j | | B� n t j | t j | | @� d S)NZ FD_CLOEXECr )�getattrru ZF_GETFDZF_SETFD)rs Z inheritableZ cloexec_flag�oldr r r �_set_inheritablef s r� c @ s e Z d Z d d � Z d S)rN c K s� d } | t j k r@ | j j � \ } } t | j � d � n t j | d | d | d | d | d d d | | �| _ | d k r� | j � t | j � d d | �| j _ n d S) NFrR rS rT rU Zuniversal_newlinesrV �wb� buffering) � subprocess�PIPErz r r� r- �Popen�_procr! �open�detachrS ) r r8 rR rS rT rU rV rW Zstdin_wr r r �_startr s z _UnixSubprocessTransport._startN)rm rn ro r� r r r r rN p s rN c @ s^ e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S)r aH Abstract base class for monitoring child processes. Objects derived from this class monitor a collection of subprocesses and report their termination or interruption by a signal. New callbacks are registered with .add_child_handler(). Starting a new process must be done within a 'with' block to allow the watcher to suspend its activity until the new process if fully registered (this is needed to prevent a race condition in some implementations). Example: with watcher: proc = subprocess.Popen("sleep 1") watcher.add_child_handler(proc.pid, callback) Notes: Implementations of this class must be thread-safe. Since child watcher objects may catch the SIGCHLD signal and call waitpid(-1), there should be only one active object per process. c G s t � � d S)a Register a new child handler. Arrange for callback(pid, returncode, *args) to be called when process 'pid' terminates. Specifying another callback for the same process replaces the previous handler. Note: callback() must be thread-safe. N)�NotImplementedError)r r\ r7 r8 r r r rO � s z&AbstractChildWatcher.add_child_handlerc C s t � � d S)z�Removes the handler for process 'pid'. The function returns True if the handler was successfully removed, False if there was nothing to remove.N)r� )r r\ r r r �remove_child_handler� s z)AbstractChildWatcher.remove_child_handlerc C s t � � d S)z�Attach the watcher to an event loop. If the watcher was previously attached to an event loop, then it is first detached before attaching to the new loop. Note: loop may be None. N)r� )r rL r r r � attach_loop� s z AbstractChildWatcher.attach_loopc C s t � � d S)zlClose the watcher. This must be called to make sure that any underlying resource is freed. N)r� )r r r r r! � s zAbstractChildWatcher.closec C s t � � d S)zdEnter the watcher's context and allow starting new processes This function must return selfN)r� )r r r r � __enter__� s z AbstractChildWatcher.__enter__c C s t � � d S)zExit the watcher's contextN)r� )r �a�b�cr r r �__exit__� s z AbstractChildWatcher.__exit__N) rm rn ro rp rO r� r� r! r� r� r r r r r � s c @ sd e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S)�BaseChildWatcherc C s d | _ d S)N)rz )r r r r r � s zBaseChildWatcher.__init__c C s | j d � d S)N)r� )r r r r r! � s zBaseChildWatcher.closec C s t � � d S)N)r� )r � expected_pidr r r � _do_waitpid� s z BaseChildWatcher._do_waitpidc C s t � � d S)N)r� )r r r r �_do_waitpid_all� s z BaseChildWatcher._do_waitpid_allc C sa | j d k r% | j j t j � n | | _ | d k r] | j t j | j � | j � n d S)N)rz r# r+ �SIGCHLDr; � _sig_chldr� )r rL r r r r� � s z BaseChildWatcher.attach_loopc C sX y | j � WnC t k rS } z# | j j i d d 6| d 6� WYd d } ~ Xn Xd S)Nz$Unknown exception in SIGCHLD handlerr� r� )r� rQ rz r� )r r9 r r r r� � s zBaseChildWatcher._sig_chldc C sA t j | � r t j | � St j | � r9 t j | � S| Sd S)N)rr � WIFSIGNALED�WTERMSIG� WIFEXITED� WEXITSTATUS)r �statusr r r �_compute_returncode� s z$BaseChildWatcher._compute_returncodeN) rm rn ro r r! r� r� r� r� r� r r r r r� � s r� c s� e Z d Z d Z � f d d � Z � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z � S)r ad 'Safe' child watcher implementation. This implementation avoids disrupting other code spawning processes by polling explicitly each process in the SIGCHLD handler instead of calling os.waitpid(-1). This is a safe solution but it has a significant overhead when handling a big number of children (O(n) each time SIGCHLD is raised) c s t � j � i | _ d S)N)r r � _callbacks)r )r r r r s zSafeChildWatcher.__init__c s | j j � t � j � d S)N)r� r� r r! )r )r r r r! s zSafeChildWatcher.closec C s | S)Nr )r r r r r� s zSafeChildWatcher.__enter__c C s d S)Nr )r r� r� r� r r r r� s zSafeChildWatcher.__exit__c G s$ | | f | j | <| j | � d S)N)r� r� )r r\ r7 r8 r r r rO s z"SafeChildWatcher.add_child_handlerc C s/ y | j | =d SWn t k r* d SYn Xd S)NTF)r� r= )r r\ r r r r� $ s z%SafeChildWatcher.remove_child_handlerc C s+ x$ t | j � D] } | j | � q Wd S)N)r" r� r� )r r\ r r r r� + s z SafeChildWatcher._do_waitpid_allc C s y t j | t j � \ } } Wn. t k rO | } d } t j d | � YnE X| d k r` d S| j | � } | j j � r� t j d | | � n y | j j | � \ } } Wn: t k r� | j j � r� t j d | d d �n Yn X| | | | � d S)N� z8Unknown child process pid %d, will report returncode 255r z$process %s exited with returncode %sz'Child watcher got an unexpected pid: %rr� T) rr �waitpid�WNOHANG�ChildProcessErrorr r� r� rz r� r� r� �popr= )r r� r\ r� r] r7 r8 r r r r� 0 s* z SafeChildWatcher._do_waitpid) rm rn ro rp r r! r� r� rO r� r� r� r r )r r r s c sv e Z d Z d Z � f d d � Z � f d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z � S)r aW 'Fast' child watcher implementation. This implementation reaps every terminated processes by calling os.waitpid(-1) directly, possibly breaking other code spawning processes and waiting for their termination. There is no noticeable overhead when handling a big number of children (O(1) each time a child terminates). c s; t � j � i | _ t j � | _ i | _ d | _ d S)Nr )r r r� � threadingZLock�_lock�_zombies�_forks)r )r r r r ] s zFastChildWatcher.__init__c s+ | j j � | j j � t � j � d S)N)r� r� r� r r! )r )r r r r! d s zFastChildWatcher.closec C s' | j � | j d 7_ | SWd QXd S)Nr )r� r� )r r r r r� i s zFastChildWatcher.__enter__c C sf | j �G | j d 8_ | j s, | j r0 d St | j � } | j j � Wd QXt j d | � d S)Nr z5Caught subprocesses termination from unknown pids: %s)r� r� r� r1 r� r r� )r r� r� r� Zcollateral_victimsr r r r� o s zFastChildWatcher.__exit__c G sf | j �G y | j j | � } Wn) t k rK | | f | j | <d SYn XWd QX| | | | � d S)N)r� r� r� r= r� )r r\ r7 r8 r] r r r rO } s z"FastChildWatcher.add_child_handlerc C s/ y | j | =d SWn t k r* d SYn Xd S)NTF)r� r= )r r\ r r r r� � s z%FastChildWatcher.remove_child_handlerc C sA x:y t j d t j � \ } } Wn t k r: d SYn X| d k rK d S| j | � } | j �� y | j j | � \ } } WnY t k r� | j r� | | j | <| j j � r� t j d | | � n w n d } Yn& X| j j � rt j d | | � n Wd QX| d k r)t j d | | � q | | | | � q Wd S)Nr r z,unknown process %s exited with returncode %sz$process %s exited with returncode %sz8Caught subprocess termination from unknown pid: %d -> %dr( )rr r� r� r� r� r� r� r� r= r� r� rz r� r r� r� )r r\ r� r] r7 r8 r r r r� � s6 z FastChildWatcher._do_waitpid_all) rm rn ro rp r r! r� r� rO r� r� r r )r r r S s c sd e Z d Z d Z e Z � f d d � Z d d � Z � f d d � Z d d � Z d d � Z � S) �_UnixDefaultEventLoopPolicyz:UNIX event loop policy with a watcher for child processes.c s t � j � d | _ d S)N)r r �_watcher)r )r r r r � s z$_UnixDefaultEventLoopPolicy.__init__c C sc t j �T | j d k rY t � | _ t t j � t j � rY | j j | j j � qY n Wd QXd S)N) r r� r� r rA r� �current_thread� _MainThreadr� �_localrz )r r r r � _init_watcher� s z)_UnixDefaultEventLoopPolicy._init_watcherc sN t � j | � | j d k rJ t t j � t j � rJ | j j | � n d S)z�Set the event loop. As a side effect, if a child watcher was set before, then calling .set_event_loop() from the main thread will call .attach_loop(loop) on the child watcher. N)r �set_event_loopr� rA r� r� r� r� )r rL )r r r r� � s z*_UnixDefaultEventLoopPolicy.set_event_loopc C s# | j d k r | j � n | j S)zzGet the watcher for child processes. If not yet set, a SafeChildWatcher object is automatically created. N)r� r� )r r r r rM � s z-_UnixDefaultEventLoopPolicy.get_child_watcherc C s, | j d k r | j j � n | | _ d S)z$Set the watcher for child processes.N)r� r! )r rX r r r �set_child_watcher� s z-_UnixDefaultEventLoopPolicy.set_child_watcher) rm rn ro rp r Z _loop_factoryr r� r� rM r� r r )r r r� � s r� )2rp r4 rr r+ r r r� r� r� r� � r r r r r r r r r r r �logr �__all__r� � ImportErrorr ZBaseSelectorEventLoopr �hasattrrt ru Z ReadTransportrD Z_FlowControlMixinZWriteTransportrJ r� r� ZBaseSubprocessTransportrN r r� r r ZBaseDefaultEventLoopPolicyr� r r r r r r �<module> s^ � s � F6Ni2
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