FM / multiprocessing

/snap/core18/2979/usr/lib/python3.6/multiprocessing/

/snap/core18/2979/usr/lib/python3.6/multiprocessing

Name	Size	Mode	Actions
dummy/	-	0755	rm
__pycache__/	-	0755	rm
connection.py	30891	0644	edit dl rm
context.py	10917	0644	edit dl rm
forkserver.py	8694	0644	edit dl rm
heap.py	8319	0644	edit dl rm
managers.py	38151	0644	edit dl rm
pool.py	26059	0644	edit dl rm
popen_fork.py	2307	0644	edit dl rm
popen_forkserver.py	1956	0644	edit dl rm
popen_spawn_posix.py	1904	0644	edit dl rm
popen_spawn_win32.py	2999	0644	edit dl rm
process.py	9211	0644	edit dl rm
queues.py	10763	0644	edit dl rm
reduction.py	9226	0644	edit dl rm
resource_sharer.py	5325	0644	edit dl rm
semaphore_tracker.py	5394	0644	edit dl rm
sharedctypes.py	6245	0644	edit dl rm
spawn.py	8863	0644	edit dl rm
synchronize.py	12050	0644	edit dl rm
util.py	11886	0644	edit dl rm
__init__.py	923	0644	edit dl rm

Edit: /snap/core18/2979/usr/lib/python3.6/multiprocessing/popen_spawn_posix.py (1904B)

import io
import os

from .context import reduction, set_spawning_popen
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, fd):
        self.fd = fd
    def detach(self):
        return self.fd

#
# Start child process using a fresh interpreter
#

class Popen(popen_fork.Popen):
    method = 'spawn'
    DupFd = _DupFd

def __init__(self, process_obj):
        self._fds = []
        super().__init__(process_obj)

def duplicate_for_child(self, fd):
        self._fds.append(fd)
        return fd

def _launch(self, process_obj):
        from . import semaphore_tracker
        tracker_fd = semaphore_tracker.getfd()
        self._fds.append(tracker_fd)
        prep_data = spawn.get_preparation_data(process_obj._name)
        fp = io.BytesIO()
        set_spawning_popen(self)
        try:
            reduction.dump(prep_data, fp)
            reduction.dump(process_obj, fp)
        finally:
            set_spawning_popen(None)

parent_r = child_w = child_r = parent_w = None
        try:
            parent_r, child_w = os.pipe()
            child_r, parent_w = os.pipe()
            cmd = spawn.get_command_line(tracker_fd=tracker_fd,
                                         pipe_handle=child_r)
            self._fds.extend([child_r, child_w])
            self.pid = util.spawnv_passfds(spawn.get_executable(),
                                           cmd, self._fds)
            self.sentinel = parent_r
            with open(parent_w, 'wb', closefd=False) as f:
                f.write(fp.getbuffer())
        finally:
            if parent_r is not None:
                util.Finalize(self, os.close, (parent_r,))
            for fd in (child_r, child_w, parent_w):
                if fd is not None:
                    os.close(fd)

import io import os from .context import reduction, set_spawning_popen 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, fd): self.fd = fd def detach(self): return self.fd # # Start child process using a fresh interpreter # class Popen(popen_fork.Popen): method = 'spawn' DupFd = _DupFd def __init__(self, process_obj): self._fds = [] super().__init__(process_obj) def duplicate_for_child(self, fd): self._fds.append(fd) return fd def _launch(self, process_obj): from . import semaphore_tracker tracker_fd = semaphore_tracker.getfd() self._fds.append(tracker_fd) prep_data = spawn.get_preparation_data(process_obj._name) fp = io.BytesIO() set_spawning_popen(self) try: reduction.dump(prep_data, fp) reduction.dump(process_obj, fp) finally: set_spawning_popen(None) parent_r = child_w = child_r = parent_w = None try: parent_r, child_w = os.pipe() child_r, parent_w = os.pipe() cmd = spawn.get_command_line(tracker_fd=tracker_fd, pipe_handle=child_r) self._fds.extend([child_r, child_w]) self.pid = util.spawnv_passfds(spawn.get_executable(), cmd, self._fds) self.sentinel = parent_r with open(parent_w, 'wb', closefd=False) as f: f.write(fp.getbuffer()) finally: if parent_r is not None: util.Finalize(self, os.close, (parent_r,)) for fd in (child_r, child_w, parent_w): if fd is not None: os.close(fd)