Zy Filemanager

📁 File Browser

Name	Size	Permissions	Actions
📁 __pycache__	DIR	0755	🗑️
📁 dummy	DIR	0755	🗑️
📄 __init__.py (916 bytes)	916 B	0644	✍️ ⬇️ 🗑️
📄 connection.py (31,856 bytes)	31.11 KB	0644	✍️ ⬇️ 🗑️
📄 context.py (11,257 bytes)	10.99 KB	0644	✍️ ⬇️ 🗑️
📄 forkserver.py (12,531 bytes)	12.24 KB	0644	✍️ ⬇️ 🗑️
📄 heap.py (11,626 bytes)	11.35 KB	0644	✍️ ⬇️ 🗑️
📄 managers.py (48,917 bytes)	47.77 KB	0644	✍️ ⬇️ 🗑️
📄 pool.py (32,509 bytes)	31.75 KB	0644	✍️ ⬇️ 🗑️
📄 popen_fork.py (2,568 bytes)	2.51 KB	0644	✍️ ⬇️ 🗑️
📄 popen_forkserver.py (2,230 bytes)	2.18 KB	0644	✍️ ⬇️ 🗑️
📄 popen_spawn_posix.py (2,029 bytes)	1.98 KB	0644	✍️ ⬇️ 🗑️
📄 popen_spawn_win32.py (4,011 bytes)	3.92 KB	0644	✍️ ⬇️ 🗑️
📄 process.py (12,005 bytes)	11.72 KB	0644	✍️ ⬇️ 🗑️
📄 queues.py (11,690 bytes)	11.42 KB	0644	✍️ ⬇️ 🗑️
📄 reduction.py (9,512 bytes)	9.29 KB	0644	✍️ ⬇️ 🗑️
📄 resource_sharer.py (5,352 bytes)	5.23 KB	0644	✍️ ⬇️ 🗑️
📄 resource_tracker.py (8,613 bytes)	8.41 KB	0644	✍️ ⬇️ 🗑️
📄 shared_memory.py (17,422 bytes)	17.01 KB	0644	✍️ ⬇️ 🗑️
📄 sharedctypes.py (6,306 bytes)	6.16 KB	0644	✍️ ⬇️ 🗑️
📄 spawn.py (9,296 bytes)	9.08 KB	0644	✍️ ⬇️ 🗑️
📄 synchronize.py (11,610 bytes)	11.34 KB	0644	✍️ ⬇️ 🗑️
📄 util.py (13,950 bytes)	13.62 KB	0644	✍️ ⬇️ 🗑️

✍️ Editing: popen_forkserver.py

            File: /lib64/python3.8/multiprocessing/popen_forkserver.py

            Size: 2.18 KB | 
            Last Modified: 2023-06-06 20:32:21        

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

↩️ Back

Zy Filemanager

📁 File Browser

📤 Upload Files

Single File

Multiple Files

ZIP Extract

➕ Create New

New Folder

New File

✍️ Editing: popen_forkserver.py

Backup Management