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Current Path: /opt/alt/python35/lib64/python3.5/multiprocessing

opt / alt / python35 / lib64 / python3.5 / multiprocessing /

ðŸ“ ..
ðŸ“„ __init__.py(923 B)
ðŸ“ __pycache__
ðŸ“„ connection.py(30.13 KB)
ðŸ“„ context.py(10.43 KB)
ðŸ“ dummy
ðŸ“„ forkserver.py(8.02 KB)
ðŸ“„ heap.py(8.13 KB)
ðŸ“„ managers.py(35.12 KB)
ðŸ“„ pool.py(25.21 KB)
ðŸ“„ popen_fork.py(2.27 KB)
ðŸ“„ popen_forkserver.py(1.92 KB)
ðŸ“„ popen_spawn_posix.py(1.87 KB)
ðŸ“„ popen_spawn_win32.py(2.93 KB)
ðŸ“„ process.py(8.92 KB)
ðŸ“„ queues.py(10.5 KB)
ðŸ“„ reduction.py(7.92 KB)
ðŸ“„ resource_sharer.py(5.19 KB)
ðŸ“„ semaphore_tracker.py(4.71 KB)
ðŸ“„ sharedctypes.py(6.08 KB)
ðŸ“„ spawn.py(8.65 KB)
ðŸ“„ synchronize.py(11.77 KB)
ðŸ“„ util.py(11.37 KB)

Editing: popen_spawn_posix.py

import io
import os

from . import context
from . import popen_fork
from . import reduction
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()
        context.set_spawning_popen(self)
        try:
            reduction.dump(prep_data, fp)
            reduction.dump(process_obj, fp)
        finally:
            context.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)

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Editing: popen_spawn_posix.py

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