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Directory (0755) :  /etc/ldap/../etckeeper/../../usr/lib/initramfs-tools/../python3.8/multiprocessing/

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Current File : //etc/ldap/../etckeeper/../../usr/lib/initramfs-tools/../python3.8/multiprocessing/popen_fork.py
import os
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()
        child_r, parent_w = os.pipe()
        self.pid = os.fork()
        if self.pid == 0:
            try:
                os.close(parent_r)
                os.close(parent_w)
                code = process_obj._bootstrap(parent_sentinel=child_r)
            finally:
                os._exit(code)
        else:
            os.close(child_w)
            os.close(child_r)
            self.finalizer = util.Finalize(self, util.close_fds,
                                           (parent_r, parent_w,))
            self.sentinel = parent_r

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

NineSec Team - 2022
Name
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Last Modified
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..
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December 13 2023 9:43:48
root
0755
__pycache__
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December 13 2023 9:45:56
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dummy
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December 13 2023 9:45:56
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__init__.py
0.895 KB
November 22 2023 11:22:35
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0644
connection.py
30.942 KB
November 22 2023 11:22:35
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context.py
10.993 KB
November 22 2023 11:22:35
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forkserver.py
12.237 KB
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heap.py
11.354 KB
November 22 2023 11:22:35
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managers.py
47.771 KB
November 22 2023 11:22:35
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pool.py
31.747 KB
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popen_fork.py
2.508 KB
November 22 2023 11:22:35
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popen_forkserver.py
2.178 KB
November 22 2023 11:22:35
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popen_spawn_posix.py
1.981 KB
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popen_spawn_win32.py
3.917 KB
November 22 2023 11:22:35
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process.py
11.724 KB
November 22 2023 11:22:35
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queues.py
11.416 KB
November 22 2023 11:22:35
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reduction.py
9.289 KB
November 22 2023 11:22:35
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resource_sharer.py
5.227 KB
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resource_tracker.py
8.411 KB
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shared_memory.py
17.014 KB
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root
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sharedctypes.py
6.158 KB
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spawn.py
9.078 KB
November 22 2023 11:22:35
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synchronize.py
11.338 KB
November 22 2023 11:22:35
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util.py
13.623 KB
November 22 2023 11:22:35
root
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NineSec Team - 2022