| Server IP : 103.119.228.120 / Your IP : 3.142.171.100 Web Server : Apache System : Linux v8.techscape8.com 3.10.0-1160.119.1.el7.tuxcare.els2.x86_64 #1 SMP Mon Jul 15 12:09:18 UTC 2024 x86_64 User : nobody ( 99) PHP Version : 5.6.40 Disable Function : shell_exec,symlink,system,exec,proc_get_status,proc_nice,proc_terminate,define_syslog_variables,syslog,openlog,closelog,escapeshellcmd,passthru,ocinum cols,ini_alter,leak,listen,chgrp,apache_note,apache_setenv,debugger_on,debugger_off,ftp_exec,dl,dll,myshellexec,proc_open,socket_bind,proc_close,escapeshellarg,parse_ini_filepopen,fpassthru,exec,passthru,escapeshellarg,escapeshellcmd,proc_close,proc_open,ini_alter,popen,show_source,proc_nice,proc_terminate,proc_get_status,proc_close,pfsockopen,leak,apache_child_terminate,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,dl,symlink,shell_exec,system,dl,passthru,escapeshellarg,escapeshellcmd,myshellexec,c99_buff_prepare,c99_sess_put,fpassthru,getdisfunc,fx29exec,fx29exec2,is_windows,disp_freespace,fx29sh_getupdate,fx29_buff_prepare,fx29_sess_put,fx29shexit,fx29fsearch,fx29ftpbrutecheck,fx29sh_tools,fx29sh_about,milw0rm,imagez,sh_name,myshellexec,checkproxyhost,dosyayicek,c99_buff_prepare,c99_sess_put,c99getsource,c99sh_getupdate,c99fsearch,c99shexit,view_perms,posix_getpwuid,posix_getgrgid,posix_kill,parse_perms,parsesort,view_perms_color,set_encoder_input,ls_setcheckboxall,ls_reverse_all,rsg_read,rsg_glob,selfURL,dispsecinfo,unix2DosTime,addFile,system,get_users,view_size,DirFiles,DirFilesWide,DirPrintHTMLHeaders,GetFilesTotal,GetTitles,GetTimeTotal,GetMatchesCount,GetFileMatchesCount,GetResultFiles,fs_copy_dir,fs_copy_obj,fs_move_dir,fs_move_obj,fs_rmdir,SearchText,getmicrotime MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /lib/mysqlsh/lib/python3.9/multiprocessing/ |
Upload File : |
import io
import os
from .context import reduction, set_spawning_popen
if not reduction.HAVE_SEND_HANDLE:
raise ImportError('No support for sending fds between processes')
from . import forkserver
from . import popen_fork
from . import spawn
from . import util
__all__ = ['Popen']
#
# Wrapper for an fd used while launching a process
#
class _DupFd(object):
def __init__(self, ind):
self.ind = ind
def detach(self):
return forkserver.get_inherited_fds()[self.ind]
#
# Start child process using a server process
#
class Popen(popen_fork.Popen):
method = 'forkserver'
DupFd = _DupFd
def __init__(self, process_obj):
self._fds = []
super().__init__(process_obj)
def duplicate_for_child(self, fd):
self._fds.append(fd)
return len(self._fds) - 1
def _launch(self, process_obj):
prep_data = spawn.get_preparation_data(process_obj._name)
buf = io.BytesIO()
set_spawning_popen(self)
try:
reduction.dump(prep_data, buf)
reduction.dump(process_obj, buf)
finally:
set_spawning_popen(None)
self.sentinel, w = forkserver.connect_to_new_process(self._fds)
# Keep a duplicate of the data pipe's write end as a sentinel of the
# parent process used by the child process.
_parent_w = os.dup(w)
self.finalizer = util.Finalize(self, util.close_fds,
(_parent_w, self.sentinel))
with open(w, 'wb', closefd=True) as f:
f.write(buf.getbuffer())
self.pid = forkserver.read_signed(self.sentinel)
def poll(self, flag=os.WNOHANG):
if self.returncode is None:
from multiprocessing.connection import wait
timeout = 0 if flag == os.WNOHANG else None
if not wait([self.sentinel], timeout):
return None
try:
self.returncode = forkserver.read_signed(self.sentinel)
except (OSError, EOFError):
# This should not happen usually, but perhaps the forkserver
# process itself got killed
self.returncode = 255
return self.returncode