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opt / alt / python37 / lib64 / python3.7 / multiprocessing /

ðŸ“ ..
ðŸ“„ __init__.py(923 B)
ðŸ“ __pycache__
ðŸ“„ connection.py(30.56 KB)
ðŸ“„ context.py(10.67 KB)
ðŸ“ dummy
ðŸ“„ forkserver.py(12.11 KB)
ðŸ“„ heap.py(8.71 KB)
ðŸ“„ managers.py(40.02 KB)
ðŸ“„ pool.py(26.21 KB)
ðŸ“„ popen_fork.py(2.34 KB)
ðŸ“„ popen_forkserver.py(1.97 KB)
ðŸ“„ popen_spawn_posix.py(1.88 KB)
ðŸ“„ popen_spawn_win32.py(3.68 KB)
ðŸ“„ process.py(10.3 KB)
ðŸ“„ queues.py(11.32 KB)
ðŸ“„ reduction.py(9.14 KB)
ðŸ“„ resource_sharer.py(5.23 KB)
ðŸ“„ semaphore_tracker.py(5.34 KB)
ðŸ“„ sharedctypes.py(6.16 KB)
ðŸ“„ spawn.py(8.64 KB)
ðŸ“„ synchronize.py(11.31 KB)
ðŸ“„ util.py(13.36 KB)

Editing: 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.finalizer = None
        self._launch(process_obj)

def duplicate_for_child(self, fd):
        return fd

def poll(self, flag=os.WNOHANG):
        if self.returncode is None:
            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
            if pid == self.pid:
                if os.WIFSIGNALED(sts):
                    self.returncode = -os.WTERMSIG(sts)
                else:
                    assert os.WIFEXITED(sts), "Status is {:n}".format(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 _send_signal(self, sig):
        if self.returncode is None:
            try:
                os.kill(self.pid, sig)
            except ProcessLookupError:
                pass
            except OSError:
                if self.wait(timeout=0.1) is None:
                    raise

def terminate(self):
        self._send_signal(signal.SIGTERM)

def kill(self):
        self._send_signal(signal.SIGKILL)

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)
                code = process_obj._bootstrap()
            finally:
                os._exit(code)
        else:
            os.close(child_w)
            self.finalizer = util.Finalize(self, os.close, (parent_r,))
            self.sentinel = parent_r

def close(self):
        if self.finalizer is not None:
            self.finalizer()

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Editing: popen_fork.py

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