Geforce File Manager

NAME	SIZE	ACTIONS
📁 __pycache__		[ DEL ]
📁 dummy		[ DEL ]
📄 __init__.py	923 B	[ EDIT ] \| [ DEL ]
📄 connection.py	31,062 B	[ EDIT ] \| [ DEL ]
📄 context.py	10,917 B	[ EDIT ] \| [ DEL ]
📄 forkserver.py	8,694 B	[ EDIT ] \| [ DEL ]
📄 heap.py	8,319 B	[ EDIT ] \| [ DEL ]
📄 managers.py	38,151 B	[ EDIT ] \| [ DEL ]
📄 pool.py	26,059 B	[ EDIT ] \| [ DEL ]
📄 popen_fork.py	2,307 B	[ EDIT ] \| [ DEL ]
📄 popen_forkserver.py	1,956 B	[ EDIT ] \| [ DEL ]
📄 popen_spawn_posix.py	1,904 B	[ EDIT ] \| [ DEL ]
📄 popen_spawn_win32.py	2,999 B	[ EDIT ] \| [ DEL ]
📄 process.py	9,211 B	[ EDIT ] \| [ DEL ]
📄 queues.py	10,763 B	[ EDIT ] \| [ DEL ]
📄 reduction.py	9,226 B	[ EDIT ] \| [ DEL ]
📄 resource_sharer.py	5,325 B	[ EDIT ] \| [ DEL ]
📄 semaphore_tracker.py	5,394 B	[ EDIT ] \| [ DEL ]
📄 sharedctypes.py	6,245 B	[ EDIT ] \| [ DEL ]
📄 spawn.py	8,863 B	[ EDIT ] \| [ DEL ]
📄 synchronize.py	12,050 B	[ EDIT ] \| [ DEL ]
📄 util.py	11,886 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: popen_fork.py

import os
import sys
import signal

from . import util

__all__ = ['Popen']

#
# Start child process using fork
#

class Popen(object):
    method = 'fork'

def __init__(self, process_obj):
        util._flush_std_streams()
        self.returncode = None
        self._launch(process_obj)

def duplicate_for_child(self, fd):
        return fd

def poll(self, flag=os.WNOHANG):
        if self.returncode is None:
            while True:
                try:
                    pid, sts = os.waitpid(self.pid, flag)
                except OSError as e:
                    # Child process not yet created. See #1731717
                    # e.errno == errno.ECHILD == 10
                    return None
                else:
                    break
            if pid == self.pid:
                if os.WIFSIGNALED(sts):
                    self.returncode = -os.WTERMSIG(sts)
                else:
                    assert os.WIFEXITED(sts)
                    self.returncode = os.WEXITSTATUS(sts)
        return self.returncode

def wait(self, timeout=None):
        if self.returncode is None:
            if timeout is not None:
                from multiprocessing.connection import wait
                if not wait([self.sentinel], timeout):
                    return None
            # This shouldn't block if wait() returned successfully.
            return self.poll(os.WNOHANG if timeout == 0.0 else 0)
        return self.returncode

def terminate(self):
        if self.returncode is None:
            try:
                os.kill(self.pid, signal.SIGTERM)
            except ProcessLookupError:
                pass
            except OSError:
                if self.wait(timeout=0.1) is None:
                    raise

def _launch(self, process_obj):
        code = 1
        parent_r, child_w = os.pipe()
        self.pid = os.fork()
        if self.pid == 0:
            try:
                os.close(parent_r)
                if 'random' in sys.modules:
                    import random
                    random.seed()
                code = process_obj._bootstrap()
            finally:
                os._exit(code)
        else:
            os.close(child_w)
            util.Finalize(self, os.close, (parent_r,))
            self.sentinel = parent_r