Operation   : Linux premium131.web-hosting.com 4.18.0-553.44.1.lve.el8.x86_64 #1 SMP Thu Mar 13 14:29:12 UTC 2025 x86_64
Software     : Apache
Server IP    : 162.0.232.56 | Your IP: 216.73.216.111
Domains      : 1034 Domain(s)
Permission   : [ 0755 ]

o

�=?h���@s�
dZd
dl
Z
d
dlZd
dlZd
dlZd
dlZd
dlZd
dlZd
dlZd
dl	Z	d
dl
Z
d
dlZd
dlZddl
mZ
ddl
mZ
ddl
mZ
ddl
mZ
ddl
mZ
dd	l
mZ
dd
l
mZ
ddl
mZ
ddl
mZ
dd
l
mZ
ddlmZ
dZe
jdkred�
�
dd�Zdd�ZGdd�dej�Z Gdd�dej!�Z"Gdd�dej#ej$�Z%Gdd�dej&�Z'Gdd�d�Z(Gd d!�d!e(�Z)Gd"d#�d#e(�Z*Gd$d%�d%e*�Z+Gd&d'�d'e*�Z,Gd(d)�d)e(�Z-Gd*d+�d+e(�Z.Gd,d-�d-ej/�Z0e Z1e0Z2dS).z2Selector event loop for Unix with signal handling.�N�
)
�base_events)
�base_subprocess)
�	constants)
�
coroutines)
�events)
�
exceptions)
�futures)
�selector_events)
�tasks)
�
transports)
�logger)�SelectorEventLoop�AbstractChildWatcher�SafeChildWatcher�FastChildWatcher�PidfdChildWatcher�MultiLoopChildWatcher�ThreadedChildWatcher�DefaultEventLoopPolicyZwin32z+Signals are not really supported on Windowsc
C�d
S)zDummy signal handler.N�)�signum�framerr�:/opt/alt/python310/lib64/python3.10/asyncio/unix_events.py�_sighandler_noop*src

Cs$zt�
|�
WSty


|YSw�
N)�os�waitstatus_to_exitcode�
ValueError)
�statusrrrr/s



�rcs�eZ
dZd
Zd)�f
dd�	Z�f
dd�Zdd�Zd	d
�Zdd�Zd
d�Z	dd�Z
		d*dd�
Z		d*dd�
Z	d)dd�
Z
dd�Z	d)ddddd�dd�Z	d)dddddd�dd �Zd!d"�Zd#d$�Zd%d&�Zd'd(�Z�ZS)+�_UnixSelectorEventLoopzdUnix event loop.

    Adds signal handling and UNIX Domain Socket support to SelectorEventLoop.
    Ncst��
|
�

i|_dSr)�super�__init__�_signal_handlers)�self�selector�
�	__class__rrr#?�


z_UnixSelectorEventLoop.__init__c
s`t��
�
t��st|j�
D]}
|�|
�

qdS|jr.tjd
|�d�t	|d�
|j�
�
dSdS)NzClosing the loop z@ on interpreter shutdown stage, skipping signal handlers removal�
�source)r"�close�sys�
is_finalizing�listr$�remove_signal_handler�warnings�warn�ResourceWarning�clear�r%�sigr'rrr,Cs




�

��z_UnixSelectorEventLoop.closecCs|
D]
}|sq|�|�

qdSr)
�_handle_signal)r%�datarrrr�_process_self_dataQs



�z)_UnixSelectorEventLoop._process_self_datac
Gs.
t�
|�
s
t�|�
rtd
�
�
|�|
�

|��
z
t�|j�	��

Wnt
tfy5
}
ztt
|�
�
�
d}~w
wt�|||d�}||j|
<zt�|
t�
t�|
d�
WdSty�
}
z8|j|
=|js�zt�d�

Wnt
tfy�
}
zt�d|�
WYd}~nd}~w
w|jtjkr�td|
�d��
�
�d}~w
w)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()NF����set_wakeup_fd(-1) failed: %s�sig � cannot be caught)rZiscoroutineZiscoroutinefunction�	TypeError�
_check_signalZ
_check_closed�signal�
set_wakeup_fdZ_csock�filenor�OSError�RuntimeError�strrZHandler$r�siginterruptr
�info�errno�EINVAL)r%r6�callback�args�exc�handleZnexcrrr�add_signal_handlerXs>

�




��








��
��z)_UnixSelectorEventLoop.add_signal_handlercCs:|j�
|
�
}|d
urd
S|jr|�|
�

d
S|�|�

d
S)z2Internal helper that is the actual signal handler.N)r$�getZ
_cancelledr0Z_add_callback_signalsafe)r%r6rMrrrr7�s



z%_UnixSelectorEventLoop._handle_signalc
Cs�|�|
�

z|j
|
=Wn
ty


Yd
Sw|
tjkrtj}ntj}zt�|
|�
WntyE
}
z|jtj	kr@t
d|
�d��
�
�d}~w
w|j
smzt�d�

WdSttfyl
}
z
t
�d|�
WYd}~dSd}~w
wdS)zwRemove a handler for a signal.  UNIX only.

        Return True if a signal handler was removed, False if not.
        Fr<r=Nr:r;T)r?r$�KeyErrorr@�SIGINT�default_int_handler�SIG_DFLrCrHrIrDrArr
rG)r%r6�handlerrLrrrr0�s6




�





��

�
��z,_UnixSelectorEventLoop.remove_signal_handlercCs6t|
t
�std
|
���
�
|
t��v
rtd|
���
�
dS)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.
        zsig must be an int, not zinvalid signal number N)�
isinstance�intr>r@�
valid_signalsrr5rrrr?�s



�z$_UnixSelectorEventLoop._check_signalcC�t||
|||�Sr)
�_UnixReadPipeTransport�r%�pipe�protocol�waiter�extrarrr�_make_read_pipe_transport��z0_UnixSelectorEventLoop._make_read_pipe_transportcCrXr)
�_UnixWritePipeTransportrZrrr�_make_write_pipe_transport�r`z1_UnixSelectorEventLoop._make_write_pipe_transportc	

�s��
t�
��U}
|
��std
�
�
|��}t||
||||||f||d�|	�
�
}|
�|��|j|�
z|IdH
Wnt	t
fy?


�tyQ


|��
|�
�IdH
�wWd�
|S1s]w



Y
|S)NzRasyncio.get_child_watcher() is not activated, subprocess support is not installed.)r]r^)r�get_child_watcher�	is_activerD�
create_future�_UnixSubprocessTransport�add_child_handlerZget_pid�_child_watcher_callback�
SystemExit�KeyboardInterrupt�
BaseExceptionr,Z_wait)
r%r\rK�shell�stdin�stdout�stderr�bufsizer^�kwargs�watcherr]�transprrr�_make_subprocess_transport�s:�




���

�






��
��z1_UnixSelectorEventLoop._make_subprocess_transportcCs|�|j
|j|�
dSr)�call_soon_threadsafe�	call_soonZ_process_exited)r%�pid�
returncodersrrrrh�sz._UnixSelectorEventLoop._child_watcher_callback)�ssl�sock�server_hostname�ssl_handshake_timeoutc	�s
�
|dust|t
�sJ�
|r|durtd
�
�
n|du
rtd�
�
|du
r'td�
�
|du
rZ|du
r3td�
�
t�|�
}t�tjtjd�}z|�d�

|�	||�IdH
Wn(


|�
�
�|durbtd�
�
|jtjksn|jtjkrutd|���
�
|�d�

|j
||
|||d	�IdH\}}||fS)
Nz/you have to pass server_hostname when using sslz+server_hostname is only meaningful with ssl�1ssl_handshake_timeout is only meaningful with ssl�3path and sock can not be specified at the same timer
Fzno path and sock were specified�.A UNIX Domain Stream Socket was expected, got )
r|)rUrErr�fspath�socket�AF_UNIX�SOCK_STREAM�setblockingZsock_connectr,�family�typeZ_create_connection_transport)	r%�protocol_factory�pathryrzr{r|�	transportr\rrr�create_unix_connection�sP�



��



�


�













�


�z-_UnixSelectorEventLoop.create_unix_connection�dT)rz�backlogryr|�
start_servingc
�s�
�
t|t
�r
td
�
�
|du
r|std�
�
|du
r�|du
r td�
�
t�|�
}t�tjtj�}|ddv
rezt	�
t�	|�
j�
rBt�|�

Wn!t
yL


Yntyd
}
z
t�d||�
WYd}~nd}~w
wz|�|�

WnFty�
}	
z|��
|	jtjkr�d|�d�}
ttj|
�d��d}	~	w



|��
�|dur�td	�
�
|jtjks�|jtjkr�td
|���
�
|�d�

t�||g
|
|||�}|r�|��
t�d�
IdH
|S)Nz*ssl argument must be an SSLContext or Noner}r~r
)r
�
z2Unable to check or remove stale UNIX socket %r: %rzAddress z is already in usez-path was not specified, and no sock specifiedrF)rU�boolr>rrr�r�r�r��stat�S_ISSOCK�st_mode�remove�FileNotFoundErrorrCr
�errorZbindr,rHZ
EADDRINUSEr�r�r�rZServerZ_start_servingr�sleep)r%r�r�rzr�ryr|r��errrL�msgZserverrrr�create_unix_server
sp�



�


�





�



���




�




�


�


�
z)_UnixSelectorEventLoop.create_unix_serverc

�s��
ztj

Wnty


t�d
�
�
wz|��}Wnttjfy-
}
zt�d�
�
d}~w
wzt�|�
j	}Wnt
yB


t�d�
�
w|rG|n
|}|sMdS|��}	|�|	d|
||||d�
|	IdHS)Nzos.sendfile() is not availableznot a regular filer
)
r�sendfile�AttributeErrorr�SendfileNotAvailableErrorrB�io�UnsupportedOperation�fstat�st_sizerCre�_sock_sendfile_native_impl)
r%rz�file�offset�countrBr�Zfsize�	blocksize�futrrr�_sock_sendfile_nativeU
s6�





��



��



�



�
z,_UnixSelectorEventLoop._sock_sendfile_nativec	Cs*|��}	|du
r
|�
|�

|
��r|�|||�
dS|r2||}|d
k
r2|�|||�
|
�|�

dSz
t�|	|||�}
Wn�ttfya


|durO|�	|
|�
|�
|	|j|
|	||||||�

YdSty�
}
zK|du
r�|j
t
jkr�t|�
tu
r�tdt
j�}||_|}|d
kr�t�d�
}
|�|||�
|
�|
�

n|�|||�
|
�|�

WYd}~dSWYd}~dSd}~w
ttfy�


�ty�
}
z|�|||�
|
�|�

WYd}~dSd}~w
w|
d
kr�|�|||�
|
�|�

dS||
7}||
7}|du�
r|�	|
|�
|�
|	|j|
|	||||||�

dS)Nr
zsocket is not connectedzos.sendfile call failed)rB�
remove_writer�	cancelled�_sock_sendfile_update_fileposZ
set_resultrr��BlockingIOError�InterruptedError�_sock_add_cancellation_callbackZ
add_writerr�rCrHZENOTCONNr��ConnectionError�	__cause__rr�Z
set_exceptionrirjrk)r%r�Z
registered_fdrzrBr�r�r��
total_sent�fdZsentrL�new_excr�rrrr�l
st



















�



�


�

��



��







�z1_UnixSelectorEventLoop._sock_sendfile_native_implcCs |d
krt�
|
|tj�
dSdS�Nr
)r�lseek�SEEK_SET)r%rBr�r�rrrr��
s

�z4_UnixSelectorEventLoop._sock_sendfile_update_fileposcs��
fd
d�}|
�|�

dS)Nc
s.|��r�
�
�}
|
d
kr��|
�

dSdSdS)Nr:)r�rBr�)r�r��r%rzrr�cb�
s



�zB_UnixSelectorEventLoop._sock_add_cancellation_callback.<locals>.cb)
Zadd_done_callback)r%r�rzr�rr�rr��
s
z6_UnixSelectorEventLoop._sock_add_cancellation_callbackr�NN)�__name__�
__module__�__qualname__�__doc__r#r,r9rNr7r0r?r_rbrtrhr�r�r�r�r�r��
__classcell__rrr'rr!9sD
-
 

�

�
��

�.�

�CFr!cs�eZ
dZd
Zd�f
dd�	Zdd�Zdd�Zd	d
�Zdd�Zd
d�Z	dd�Z
dd�Zdd�Ze
jf
dd�
Zddd�
Zdd�Zdd�Z�ZS) rYiNcs�t��
|�

||jd
<|
|_||_|��|_||_d|_d|_	t
�|j�
j}t
�|�
sBt
�|�
sBt
�|�
sBd|_d|_d|_td�
�
t
�|jd�
|j�|jj|�
|j�|jj|j|j�
|du
rm|j�tj|d�
dSdS)Nr[Fz)Pipe transport is for pipes/sockets only.)r"r#�_extra�_loop�_piperB�_fileno�	_protocol�_closing�_pausedrr�r�r��S_ISFIFOr��S_ISCHRr�set_blockingrv�connection_made�_add_reader�_read_readyr	�_set_result_unless_cancelled)r%�loopr[r\r]r^�moder'rrr#�
s8












��



�

��z_UnixReadPipeTransport.__init__c
Cs�|jj
g
}
|jdur|
�d
�

n|jr|
�d�

|
�d|j���

t|jdd�}|jdu
rH|du
rHt�	||jt
j�}|rB|
�d�

n|
�d�

n|jdu
rS|
�d�

n|
�d
�

d�d	�
|
�
�
S)
N�closed�closing�fd=�	_selector�polling�idle�open�<{}>�
 )r(r�r��appendr�r��getattrr�r
�_test_selector_event�	selectorsZ
EVENT_READ�format�join)r%rGr&r�rrr�__repr__�
s$













�





z_UnixReadPipeTransport.__repr__c

Cs�z
t�
|j|j�}
Wn$ttfy


YdSty.
}
z
|�|d
�
WYd}~dSd}~w
w|
r9|j�	|
�

dS|j
��rDt�
d|�
d|_|j
�|j�

|j
�|jj�

|j
�|jd�
dS)Nz"Fatal read error on pipe transport�%r was closed by peerT)r�readr��max_sizer�r�rC�_fatal_errorr�Z
data_receivedr��	get_debugr
rGr��_remove_readerrvZeof_received�_call_connection_lost)r%r8rLrrrr��
s 





��






z"_UnixReadPipeTransport._read_readyc

CsB|js|j
rdSd
|_
|j�|j�

|j��rt�d|�
dSdS)NTz%r pauses reading)r�r�r�r�r�r�r
�debug�
r%rrr�
pause_readings






�z$_UnixReadPipeTransport.pause_readingc

CsF|js|j
sdSd
|_
|j�|j|j�
|j��r!t�d|�
dSdS)NFz%r resumes reading)	r�r�r�r�r�r�r�r
r�r�rrr�resume_readings






�z%_UnixReadPipeTransport.resume_readingcC�
|
|_dSr�
r��r%r\rrr�set_protocol�

z#_UnixReadPipeTransport.set_protocolc


C�|jSrr�r�rrr�get_protocol�
z#_UnixReadPipeTransport.get_protocolc


Cr�r�
r�r�rrr�
is_closingr�z!_UnixReadPipeTransport.is_closingc

Cs|js
|�
d�

dSdSr)r��_closer�rrrr,!s

�z_UnixReadPipeTransport.closecC�0|jdu
r|
d
|��t
|d�
|j��
dSdS�Nzunclosed transport r*�r�r3r,�r%�_warnrrr�__del__%�



�z_UnixReadPipeTransport.__del__�Fatal error on pipe transportcCsZt|
t
�r|
jtjkr|j��rtjd
||dd�
n|j�||
||j	d��

|�
|
�

dS�Nz%r: %sT�
�exc_info)�message�	exceptionr�r\)rUrCrHZEIOr�r�r
r��call_exception_handlerr�r��r%rLr�rrrr�*s


�



�z#_UnixReadPipeTransport._fatal_errorcCs(d
|_|j
�|j�

|j
�|j|
�
dS�NT)r�r�r�r�rvr��r%rLrrrr�8s


z_UnixReadPipeTransport._closecC�Nz|j�
|
�

W|j��
d|_d|_d|_dS|j��
d|_d|_d|_wr�r�Zconnection_lostr�r,r�r
rrrr�=�







�


z,_UnixReadPipeTransport._call_connection_lostr��
r�)r�r�r�r�r#r�r�r�r�r�r�r�r,r1r2r�r�r�r�r�rrr'rrY�
s
rYcs�eZ
dZd%�f
dd�	Zdd�Zdd�Zdd	�Zd
d�Zdd
�Zdd�Z	dd�Z
dd�Zdd�Zdd�Z
dd�Zejf
dd�
Zdd�Zd&dd �
Zd'd!d"�
Zd#d$�Z�ZS)(raNc
s
t��
||
�
||jd
<||_|��|_||_t�|_d|_	d|_
t�|j�
j
}t�|�
}t�|�
}t�|�
}	|sJ|sJ|	sJd|_d|_d|_td�
�
t�|jd�
|j�|jj|�
|	sd|rptj�d�
sp|j�|jj|j|j�
|du
r|j�tj|d�
dSdS)Nr[r
Fz?Pipe transport is only for pipes, sockets and character devices�aix)r"r#r�r�rBr�r��	bytearray�_buffer�
_conn_lostr�rr�r�r�r�r�r�rr�r�rvr�r-�platform�
startswithr�r�r	r�)
r%r�r[r\r]r^r�Zis_charZis_fifoZ	is_socketr'rrr#Js8






















�

��z _UnixWritePipeTransport.__init__c
Cs�|jj
g
}
|jdur|
�d
�

n|jr|
�d�

|
�d|j���

t|jdd�}|jdu
rT|du
rTt�	||jt
j�}|rB|
�d�

n|
�d�

|��}|
�d|���

n|jdu
r_|
�d�

n|
�d
�

d	�
d
�|
�
�
S)Nr�r�r�r�r�r�zbufsize=r�r�r�)r(r�r�r�r�r�r�r�r
r�r�ZEVENT_WRITE�get_write_buffer_sizer�r�)r%rGr&r�rprrrr�os(













�







z _UnixWritePipeTransport.__repr__c

Cs
t|j
�
Sr)�lenr
r�rrrr
�r�z-_UnixWritePipeTransport.get_write_buffer_sizec

Cs8|j�
�rt�d
|�
|jr|�t��

dS|��
dS)Nr�)r�r�r
rGr
r��BrokenPipeErrorr�rrrr��s




z#_UnixWritePipeTransport._read_readyc
CsB
t|
t
ttf�sJt|
�
�
�
t|
t�rt|
�
}
|
sdS|js!|jr5|jtjkr,t	�
d
�

|jd7_dS|js�z	t�
|j|
�}Wn5ttfyN


d}Yn)ttfyW


�tyv
}
z|jd7_|�|d�
WYd}~dSd}~w
w|t|
�
krdS|dkr�t|
�
|d�}
|j�|j|j�
|j|
7_|��
dS)Nz=pipe closed by peer or os.write(pipe, data) raised exception.rr
�#Fatal write error on pipe transport)rU�bytesr

�
memoryview�reprr
r�rZ!LOG_THRESHOLD_FOR_CONNLOST_WRITESr
�warningr
r�writer�r�r�rirjrkr�r
r�Z_add_writer�_write_readyZ_maybe_pause_protocol)r%r8�
nrLrrrr
�s<


















��




z_UnixWritePipeTransport.writec

Cs
|jsJd
�
�
z
t
�|j|j�}
Wn@ttfy


YdSttfy&


�tyQ
}
z |j�	�
|j
d7_
|j�|j�

|�
|d�
WYd}~dSd}~w
w|
t|j�
krz|j�	�
|j�|j�

|��
|jrx|j�|j�

|�d�

dS|
dkr�|jd|
�=dSdS)NzData should not be emptyrr
r
)r
rr
r�r�r�rirjrkr4r
r��_remove_writerr�r
Z_maybe_resume_protocolr�r�r�)r%r
rLrrrr
�s2










��










�z$_UnixWritePipeTransport._write_readyc


Crr
rr�rrr�
can_write_eof��
z%_UnixWritePipeTransport.can_write_eofc

CsF|jrdS|j
s
J�
d
|_|js!|j�|j�

|j�|jd�
dSdSr
)r�r�r
r�r�r�rvr�r�rrr�	write_eof�s







�z!_UnixWritePipeTransport.write_eofcCr�rr�r�rrrr��r�z$_UnixWritePipeTransport.set_protocolc


Cr�rr�r�rrrr��r�z$_UnixWritePipeTransport.get_protocolc


Cr�rr�r�rrrr��r�z"_UnixWritePipeTransport.is_closingc

Cs$|jdu
r|j
s|��
dSdSdSr)r�r�r
r�rrrr,�s
�z_UnixWritePipeTransport.closecCr�r�r�r�rrrr��r�z_UnixWritePipeTransport.__del__c

C�|�d�

dSr)
r�r�rrr�abort��
z_UnixWritePipeTransport.abortr�cCsNt|
t
�r|j��rtjd
||dd�
n|j�||
||jd��

|�|
�

dSr�)	rUrCr�r�r
r�r

r�r�r
rrrr��s



�



�z$_UnixWritePipeTransport._fatal_errorcCsFd
|_|j
r
|j�|j�

|j
��
|j�|j�

|j�|j|
�
dSr
)	r�r
r�r
r�r4r�rvr�r
rrrr�s






z_UnixWritePipeTransport._closecCr
rr
r
rrrr�
r
z-_UnixWritePipeTransport._call_connection_lostr�r
r)r�r�r�r#r�r
r�r
r
r
r
r�r�r�r,r1r2r�r
r�r�r�r�rrr'rraGs$%	#	

rac@seZ
dZd
d�ZdS)rfc		Ks�d}|tj
krtj�d
�
rt��\}}z7tj|
f
||||d|d�|�
�
|_|du
r:|�	�
t
|��d|d�|j_d}W|du
rI|�	�
|�	�
dSdS|du
rX|�	�
|�	�
ww)Nr	
F)rlrmrnroZuniversal_newlinesrp�wb)
�	buffering)
�
subprocess�PIPEr-r

r
r�Z
socketpair�Popen�_procr,r��detachrm)	r%rKrlrmrnrorprqZstdin_wrrr�_starts0




�

��


�

�


�z_UnixSubprocessTransport._startN)r�r�r�r(
rrrrrfsrfc@sHeZ
dZd
Zdd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
dS)raHAbstract 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�t��
)
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.
        �
�NotImplementedError�r%rwrJrKrrrrgCs	z&AbstractChildWatcher.add_child_handlerc
Cr)
)
z�Removes the handler for process 'pid'.

        The function returns True if the handler was successfully removed,
        False if there was nothing to remove.r*
�r%rwrrr�remove_child_handlerNsz)AbstractChildWatcher.remove_child_handlerc
Cr)
)
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.
        r*
�r%r�rrr�attach_loopVsz AbstractChildWatcher.attach_loopc


Cr)
)
zlClose the watcher.

        This must be called to make sure that any underlying resource is freed.
        r*
r�rrrr,`szAbstractChildWatcher.closec


Cr)
)
z�Return ``True`` if the watcher is active and is used by the event loop.

        Return True if the watcher is installed and ready to handle process exit
        notifications.

        r*
r�rrrrdgszAbstractChildWatcher.is_activec


Cr)
)
zdEnter the watcher's context and allow starting new processes

        This function must return selfr*
r�rrr�	__enter__pszAbstractChildWatcher.__enter__c
Cr)
)
zExit the watcher's contextr*
�r%�
a�
b�
crrr�__exit__vszAbstractChildWatcher.__exit__N)r�r�r�r�rgr.
r0
r,rdr1
r6
rrrrr,s

	rc@sXeZ
dZd
Zdd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
dd�Zdd�ZdS)ra6Child watcher implementation using Linux's pid file descriptors.

    This child watcher polls process file descriptors (pidfds) to await child
    process termination. In some respects, PidfdChildWatcher is a "Goldilocks"
    child watcher implementation. It doesn't require signals or threads, doesn't
    interfere with any processes launched outside the event loop, and scales
    linearly with the number of subprocesses launched by the event loop. The
    main disadvantage is that pidfds are specific to Linux, and only work on
    recent (5.3+) kernels.
    c

C�d|_i|_
dSr�r��
_callbacksr�rrrr#��


zPidfdChildWatcher.__init__c


C�|Srrr�rrrr1
�r
zPidfdChildWatcher.__enter__c
C�dSrr)r%�exc_type�	exc_value�
exc_tracebackrrrr6
�r
zPidfdChildWatcher.__exit__c

C�|jdu
o	|j�
�Sr�r�Z
is_runningr�rrrrd��
zPidfdChildWatcher.is_activec

Cr
r�
r0
r�rrrr,�r 
zPidfdChildWatcher.closecCsd|jdu
r|
dur|j
rt�d
t�
|j
��D]\}}}|j�|�

t�|�

q|j
�	�
|
|_dS�NzCA loop is being detached from a child watcher with pending handlers)
r�r9
r1r2�RuntimeWarning�valuesr�rr,r4)r%r��pidfd�
_rrrr0
�s


�





zPidfdChildWatcher.attach_loopcGs\|j�
|
�
}|du
r|d
||f|j|
<dSt�|
�
}|j�||j|
�
|||f|j|
<dSr�)r9
rOrZ
pidfd_openr�r��_do_wait)r%rwrJrKZexistingrG
rrrrg�s





z#PidfdChildWatcher.add_child_handlercCs~|j�
|
�
\}}}|j�|�

z
t�|
d
�\}}Wnty*


d}t�d|
�
Ynwt	|�
}t�
|�

||
|g|�
R�
dS)Nr
�zJchild process pid %d exit status already read:  will report returncode 255)r9
�popr�r�r�waitpid�ChildProcessErrorr
r
rr,)r%rwrG
rJrKrH
r rxrrrrI
�s






��	

zPidfdChildWatcher._do_waitcCsFz|j�
|
�
\}}}Wn
ty


Yd
Sw|j�|�

t�|�

dS)NFT)r9
rK
rPr�r�rr,)r%rwrG
rH
rrrr.
�s



�


z&PidfdChildWatcher.remove_child_handlerN)
r�r�r�r�r#r1
r6
rdr,r0
rgrI
r.
rrrrr{s
	rc@sDeZ
dZd
d�Zdd�Zdd�Zdd�Zd	d
�Zdd�Zd
d�Z	dS)�BaseChildWatcherc

Cr7
rr8
r�rrrr#�r:
zBaseChildWatcher.__init__c

Cr
rrC
r�rrrr,�r 
zBaseChildWatcher.closec

Cr@
rrA
r�rrrrd�rB
zBaseChildWatcher.is_activec
Cr)
rr*
)r%�expected_pidrrr�_do_waitpid�r�zBaseChildWatcher._do_waitpidc


Cr)
rr*
r�rrr�_do_waitpid_all�r�z BaseChildWatcher._do_waitpid_allcCs�|
dust|
t
j�sJ�
|jdu
r|
dur|jrt�d
t�
|jdu
r*|j�t	j
�

|
|_|
du
r?|
�t	j
|j�
|�
�
dSdSrD
)rUrZAbstractEventLoopr�r9
r1r2rE
r0r@�SIGCHLDrN�	_sig_chldrQ
r/
rrrr0
�s


�



�zBaseChildWatcher.attach_loopc

CsZz|��
WdSt
tfy


�ty,
}

z|j�d
|
d��

WYd}
~
dSd}
~
w
w)N�$Unknown exception in SIGCHLD handler)r�r
)rQ
rirjrkr�r

r
rrrrS
�s






���zBaseChildWatcher._sig_chldN)
r�r�r�r#r,rdrP
rQ
r0
rS
rrrrrN
�srN
csPeZ
dZd
Z�f
dd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
�ZS)rad
'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|j�
�
t���
dSr)r9
r4r"r,r�r'rrr,	s


zSafeChildWatcher.closec


Cr;
rrr�rrrr1

r
zSafeChildWatcher.__enter__c
Cr<
rrr2
rrrr6
r
zSafeChildWatcher.__exit__cGs||f|j|
<|�
|
�

dSr)r9
rP
r,
rrrrgs
z"SafeChildWatcher.add_child_handlercC�$z|j|
=Wd
St
y


YdSw�NTF�r9
rPr-
rrrr.
�




�z%SafeChildWatcher.remove_child_handlerc
C�t|j
�
D]}
|�|
�

qdSr�r/r9
rP
r-
rrrrQ
 s
�z SafeChildWatcher._do_waitpid_allcCs�|
d
ksJ�
zt�
|
tj�\}}Wnty$


|
}d}t�d|�
Ynw|d
kr+dSt|�
}|j��r;t�	d|
|�
z
|j
�|�
\}}Wnty_


|j��r\tjd|dd�
YdSYdSw|||g|�
R�
dS)Nr
rJ
�8Unknown child process pid %d, will report returncode 255�$process %s exited with returncode %s�'Child watcher got an unexpected pid: %rTr�)
rrL
�WNOHANGrM
r
r
rr�r�r�r9
rK
rP)r%rO
rwr rxrJrKrrrrP
%s8






��	



�




���zSafeChildWatcher._do_waitpid)r�r�r�r�r,r1
r6
rgr.
rQ
rP
r�rrr'rr�s

rcsTeZ
dZd
Z�f
dd�Z�f
dd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
�ZS)raW
'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��
�
t��|_i|_d
|_dSr�)r"r#�	threadingZLock�_lock�_zombies�_forksr�r'rrr#Rs






zFastChildWatcher.__init__c

s"|j�
�
|j�
�
t���
dSr)r9
r4ra
r"r,r�r'rrr,Xs




zFastChildWatcher.closec

Cs<|j�
|j
d
7_
|Wd�
S1sw



Y
dS)Nr)r`
rb
r�rrrr1
]s

$�zFastChildWatcher.__enter__cCsv|j�(
|j
d
8_
|j
s|js	Wd�
dSt|j�
}|j��
Wd�
n1s.w



Y
t�d|�
dS)Nrz5Caught subprocesses termination from unknown pids: %s)r`
rb
ra
rEr4r
r
)r%r3
r4
r5
Zcollateral_victimsrrrr6
cs


�

�	

�zFastChildWatcher.__exit__c	Gs�|jsJd
�
�
|j
�(
z|j�|
�
}Wnty*


||f|j|
<YWd�
dSwWd�
n1s5w



Y
||
|g|�
R�
dS)NzMust use the context manager)rb
r`
ra
rK
rPr9
)r%rwrJrKrxrrrrgqs




���	z"FastChildWatcher.add_child_handlercCrU
rV
rW
r-
rrrr.
rX
z%FastChildWatcher.remove_child_handlerc
	Cs
	zt�
dtj�\}
}Wn
ty


YdSw|
dkrdSt|�
}|j�F
z
|j�|
�
\}}Wn'tyV


|j	rR||j
|
<|j��rJt
�d|
|�
YWd�
qd}Yn
w|j��rct
�d|
|�
Wd�
n1smw



Y
|dur~t
�d|
|�
n	||
|g|�
R�
q
)NTr:r
z,unknown process %s exited with returncode %sr\
z8Caught subprocess termination from unknown pid: %d -> %d)rrL
r^
rM
rr`
r9
rK
rPrb
ra
r�r�r
r�r
)r%rwr rxrJrKrrrrQ
�sH


�






��
�


���


��z FastChildWatcher._do_waitpid_all)r�r�r�r�r#r,r1
r6
rgr.
rQ
r�rrr'rrHs
	rc@sheZ
dZd
Zdd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	dd�Z
dd�Zdd�Zdd�Z
dd�ZdS)ra~
A watcher that doesn't require running loop in the main thread.

    This implementation registers a SIGCHLD signal handler on
    instantiation (which may conflict with other code that
    install own handler for this signal).

    The solution is safe but it has a significant overhead when
    handling a big number of processes (*O(n)* each time a
    SIGCHLD is received).
    c

Csi|_d|_
dSr)r9
�_saved_sighandlerr�rrrr#�r:
zMultiLoopChildWatcher.__init__c

Cs
|jdu
Sr)
rc
r�rrrrd�r�zMultiLoopChildWatcher.is_activec
CsT|j�
�
|jdurdSt�tj�
}
|
|jkrt�d
�

nt�tj|j�
d|_dS)Nz+SIGCHLD handler was changed by outside code)	r9
r4rc
r@�	getsignalrR
rS
r
r
)r%rTrrrr,�s









zMultiLoopChildWatcher.closec


Cr;
rrr�rrrr1
�r
zMultiLoopChildWatcher.__enter__c
Cr<
rr�r%r=
Zexc_valZexc_tbrrrr6
�r
zMultiLoopChildWatcher.__exit__cGs&t�
�}|||f|j|
<|�|
�

dSr)r�get_running_loopr9
rP
)r%rwrJrKr�rrrrg�s

z'MultiLoopChildWatcher.add_child_handlercCrU
rV
rW
r-
rrrr.
�rX
z*MultiLoopChildWatcher.remove_child_handlercCsN|jdu
rdSt
�
t
j|j�|_|jdurt�d
�

t
j|_t
�t
jd�
dS)NzaPrevious SIGCHLD handler was set by non-Python code, restore to default handler on watcher close.F)rc
r@rR
rS
r
r
rSrFr/
rrrr0
�s





z!MultiLoopChildWatcher.attach_loopc
CrY
rrZ
r-
rrrrQ
�s

�z%MultiLoopChildWatcher._do_waitpid_allc	Cs�|
d
ksJ�
zt�
|
tj�\}}Wnty&


|
}d}t�d|�
d}Yn
w|d
kr-dSt|�
}d}z|j�|�
\}}}Wnt	yP


tjd|dd�
YdSw|�
�r^t�d||�
dS|rk|��rkt�d	|
|�
|j
|||g|�
R�
dS)
Nr
rJ
r[
FTr]
r��%Loop %r that handles pid %r is closedr\
)rrL
r^
rM
r
r
rr9
rK
rP�	is_closedr�r�ru)	r%rO
rwr rxZ	debug_logr�rJrKrrrrP
s<






��





��


�z!MultiLoopChildWatcher._do_waitpidc	CsDz|��
WdSt
tfy


�ty!


tjd
dd�
YdSw)NrT
Tr�)rQ
rirjrkr
r
)r%rrrrrrS
%s





�zMultiLoopChildWatcher._sig_chldN)r�r�r�r�r#rdr,r1
r6
rgr.
r0
rQ
rP
rS
rrrrr�s
%rc@sneZ
dZd
Zdd�Zdd�Zdd�Zdd	�Zd
d�Zdd
�Z	e
jf
dd�
Zdd�Z
dd�Zdd�Zdd�ZdS)raA
Threaded child watcher implementation.

    The watcher uses a thread per process
    for waiting for the process finish.

    It doesn't require subscription on POSIX signal
    but a thread creation is not free.

    The watcher has O(1) complexity, its performance doesn't depend
    on amount of spawn processes.
    c

Cst�
d
�
|_i|_dSr�)�	itertoolsr��_pid_counter�_threadsr�rrrr#;r)zThreadedChildWatcher.__init__c


Crr
rr�rrrrd?r
zThreadedChildWatcher.is_activec

Cs|��
dSr)
�
_join_threadsr�rrrr,Bs
zThreadedChildWatcher.closec
Cs.d
d�t|j
���
D�
}
|
D]}|��
qdS)z%Internal: Join all non-daemon threadsc
Ssg|]}
|
��r|
j
s|
�qSr)�is_alive�daemon��.0�threadrrr�
<listcomp>Gs

�

�z6ThreadedChildWatcher._join_threads.<locals>.<listcomp>N)r/rk
rF
r�)r%�threadsrq
rrrrl
Es

�z"ThreadedChildWatcher._join_threadsc


Cr;
rrr�rrrr1
Lr
zThreadedChildWatcher.__enter__c
Cr<
rrre
rrrr6
Or
zThreadedChildWatcher.__exit__cCs:d
d�t|j
���
D�
}|r|
|j�d�t|d�
dSdS)Nc
Ssg|]}
|
��r|
�qSr)
rm
ro
rrrrr
Ss

�z0ThreadedChildWatcher.__del__.<locals>.<listcomp>z0 has registered but not finished child processesr*)r/rk
rF
r(r3)r%r�rs
rrrr�Rs




��zThreadedChildWatcher.__del__cGsFt�
�}tj|jd
t|j�
��||
||fdd�}||j|
<|��
dS)Nzwaitpid-T)�target�namerKrn
)	rrf
r_
ZThreadrP
�nextrj
rk
�start)r%rwrJrKr�rq
rrrrgZs





�

z&ThreadedChildWatcher.add_child_handlerc
Crr
rr-
rrrr.
csz)ThreadedChildWatcher.remove_child_handlerc
Cr<
rrr/
rrrr0
ir
z ThreadedChildWatcher.attach_loopcCs�|d
ksJ�
z
t�
|d
�\}}Wnty#


|}d}t�d|�
Ynwt|�
}|
��r3t�d||�
|
��r?t�d|
|�
n|
j	|||g|�
R�
|j
�|�

dS)Nr
rJ
r[
r\
rg
)rrL
rM
r
r
rr�r�rh
rurk
rK
)r%r�rO
rJrKrwr rxrrrrP
ls(






��	


�
z ThreadedChildWatcher._do_waitpidN)r�r�r�r�r#rdr,rl
r1
r6
r1r2r�rgr.
r0
rP
rrrrr.s
	rcsHeZ
dZd
ZeZ�f
dd�Zdd�Z�f
dd�Zdd	�Z	d
d�Z
�ZS)�_UnixDefaultEventLoopPolicyz:UNIX event loop policy with a watcher for child processes.c

st��
�
d|_dSr)r"r#�_watcherr�r'rrr#�s



z$_UnixDefaultEventLoopPolicy.__init__c

Cs~tj
�2
|jdur%t�|_t��t��ur-|j�|jj	�

Wd�
dSWd�
dSWd�
dS1s8w



Y
dSr)
rr`
ry
rr_
�current_thread�main_threadr0
�_localr�r�rrr�
_init_watcher�s





�
�"�z)_UnixDefaultEventLoopPolicy._init_watchercs>t��
|
�

|jd
u
rt��t��ur|j�|
�

d
Sd
Sd
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_loopry
r_
rz
r{
r0
r/
r'rrr~
�s


�
z*_UnixDefaultEventLoopPolicy.set_event_loopc

Cs|jd
ur	|�
�
|jS)z~Get the watcher for child processes.

        If not yet set, a ThreadedChildWatcher object is automatically created.
        N)ry
r}
r�rrrrc�s

z-_UnixDefaultEventLoopPolicy.get_child_watchercCs4|
d
ust|
t
�sJ�
|jd
u
r|j��
|
|_d
S)z$Set the watcher for child processes.N)rUrry
r,)r%rrrrr�set_child_watcher�s



z-_UnixDefaultEventLoopPolicy.set_child_watcher)r�r�r�r�r!Z
_loop_factoryr#r}
r~
rcr
r�rrr'rrx
�s


rx
)3r�rHr�ri
rr�r@r�r�r#
r-r_
r1�rrrrrrr	r
rr�logr
�__all__r

�ImportErrorrrZBaseSelectorEventLoopr!Z
ReadTransportrYZ_FlowControlMixinZWriteTransportraZBaseSubprocessTransportrfrrrN
rrrrZBaseDefaultEventLoopPolicyrx
rrrrrr�<module>
sd





















	

		
�NON5Ji}Y2