FM / multiprocessing

/usr/lib64/python2.6/multiprocessing

Name	Size	Mode	Actions
dummy/	-	0755	rm
connection.py	12663	0644	edit dl rm
connection.pyc	14286	0644	edit dl rm
connection.pyo	14136	0644	edit dl rm
forking.py	14538	0644	edit dl rm
forking.pyc	14314	0644	edit dl rm
forking.pyo	14150	0644	edit dl rm
heap.py	5748	0644	edit dl rm
heap.pyc	6516	0644	edit dl rm
heap.pyo	6135	0644	edit dl rm
managers.py	34804	0644	edit dl rm
managers.pyc	38462	0644	edit dl rm
managers.pyo	37848	0644	edit dl rm
pool.py	17699	0644	edit dl rm
pool.pyc	18631	0644	edit dl rm
pool.pyo	18172	0644	edit dl rm
process.py	7904	0644	edit dl rm
process.pyc	9534	0644	edit dl rm
process.pyo	8780	0644	edit dl rm
queues.py	11089	0644	edit dl rm
queues.pyc	11696	0644	edit dl rm
queues.pyo	11593	0644	edit dl rm
reduction.py	5124	0644	edit dl rm
reduction.pyc	6034	0644	edit dl rm
reduction.pyo	6034	0644	edit dl rm
sharedctypes.py	6145	0644	edit dl rm
sharedctypes.pyc	8553	0644	edit dl rm
sharedctypes.pyo	8473	0644	edit dl rm
synchronize.py	8966	0644	edit dl rm
synchronize.pyc	10506	0644	edit dl rm
synchronize.pyo	10168	0644	edit dl rm
util.py	7839	0644	edit dl rm
util.pyc	9738	0644	edit dl rm
util.pyo	9643	0644	edit dl rm
__init__.py	7627	0644	edit dl rm
__init__.pyc	8369	0644	edit dl rm
__init__.pyo	8369	0644	edit dl rm

Edit: /usr/lib64/python2.6/multiprocessing/process.py (7904B)

#
# Module providing the `Process` class which emulates `threading.Thread`
#
# multiprocessing/process.py
#
# Copyright (c) 2006-2008, R Oudkerk --- see COPYING.txt
#

__all__ = ['Process', 'current_process', 'active_children']

#
# Imports
#

import os
import sys
import signal
import itertools

#
#
#

try:
    ORIGINAL_DIR = os.path.abspath(os.getcwd())
except OSError:
    ORIGINAL_DIR = None

#
# Public functions
#

def current_process():
    '''
    Return process object representing the current process
    '''
    return _current_process

def active_children():
    '''
    Return list of process objects corresponding to live child processes
    '''
    _cleanup()
    return list(_current_process._children)

#
#
#

def _cleanup():
    # check for processes which have finished
    for p in list(_current_process._children):
        if p._popen.poll() is not None:
            _current_process._children.discard(p)

#
# The `Process` class
#

class Process(object):
    '''
    Process objects represent activity that is run in a separate process

The class is analagous to `threading.Thread`
    '''
    _Popen = None

def __init__(self, group=None, target=None, name=None, args=(), kwargs={}):
        assert group is None, 'group argument must be None for now'
        count = _current_process._counter.next()
        self._identity = _current_process._identity + (count,)
        self._authkey = _current_process._authkey
        self._daemonic = _current_process._daemonic
        self._tempdir = _current_process._tempdir
        self._parent_pid = os.getpid()
        self._popen = None
        self._target = target
        self._args = tuple(args)
        self._kwargs = dict(kwargs)
        self._name = name or type(self).__name__ + '-' + \
                     ':'.join(str(i) for i in self._identity)

def run(self):
        '''
        Method to be run in sub-process; can be overridden in sub-class
        '''
        if self._target:
            self._target(*self._args, **self._kwargs)

def start(self):
        '''
        Start child process
        '''
        assert self._popen is None, 'cannot start a process twice'
        assert self._parent_pid == os.getpid(), \
               'can only start a process object created by current process'
        assert not _current_process._daemonic, \
               'daemonic processes are not allowed to have children'
        _cleanup()
        if self._Popen is not None:
            Popen = self._Popen
        else:
            from .forking import Popen
        self._popen = Popen(self)
        _current_process._children.add(self)

def terminate(self):
        '''
        Terminate process; sends SIGTERM signal or uses TerminateProcess()
        '''
        self._popen.terminate()

def join(self, timeout=None):
        '''
        Wait until child process terminates
        '''
        assert self._parent_pid == os.getpid(), 'can only join a child process'
        assert self._popen is not None, 'can only join a started process'
        res = self._popen.wait(timeout)
        if res is not None:
            _current_process._children.discard(self)

def is_alive(self):
        '''
        Return whether process is alive
        '''
        if self is _current_process:
            return True
        assert self._parent_pid == os.getpid(), 'can only test a child process'
        if self._popen is None:
            return False
        self._popen.poll()
        return self._popen.returncode is None

@property
    def name(self):
        return self._name

@name.setter
    def name(self, name):
        assert isinstance(name, basestring), 'name must be a string'
        self._name = name

@property
    def daemon(self):
        '''
        Return whether process is a daemon
        '''
        return self._daemonic

@daemon.setter
    def daemon(self, daemonic):
        '''
        Set whether process is a daemon
        '''
        assert self._popen is None, 'process has already started'
        self._daemonic = daemonic

@property
    def authkey(self):
        return self._authkey

@authkey.setter
    def authkey(self, authkey):
        '''
        Set authorization key of process
        '''
        self._authkey = AuthenticationString(authkey)

@property
    def exitcode(self):
        '''
        Return exit code of process or `None` if it has yet to stop
        '''
        if self._popen is None:
            return self._popen
        return self._popen.poll()

@property
    def ident(self):
        '''
        Return indentifier (PID) of process or `None` if it has yet to start
        '''
        if self is _current_process:
            return os.getpid()
        else:
            return self._popen and self._popen.pid

pid = ident

def __repr__(self):
        if self is _current_process:
            status = 'started'
        elif self._parent_pid != os.getpid():
            status = 'unknown'
        elif self._popen is None:
            status = 'initial'
        else:
            if self._popen.poll() is not None:
                status = self.exitcode
            else:
                status = 'started'

if type(status) is int:
            if status == 0:
                status = 'stopped'
            else:
                status = 'stopped[%s]' % _exitcode_to_name.get(status, status)

return '<%s(%s, %s%s)>' % (type(self).__name__, self._name,
                                   status, self._daemonic and ' daemon' or '')

def _bootstrap(self):
        from . import util
        global _current_process

try:
            self._children = set()
            self._counter = itertools.count(1)
            try:
                sys.stdin.close()
                sys.stdin = open(os.devnull)
            except (OSError, ValueError):
                pass
            _current_process = self
            util._finalizer_registry.clear()
            util._run_after_forkers()
            util.info('child process calling self.run()')
            try:
                self.run()
                exitcode = 0
            finally:
                util._exit_function()
        except SystemExit, e:
            if not e.args:
                exitcode = 1
            elif type(e.args[0]) is int:
                exitcode = e.args[0]
            else:
                sys.stderr.write(e.args[0] + '\n')
                sys.stderr.flush()
                exitcode = 1
        except:
            exitcode = 1
            import traceback
            sys.stderr.write('Process %s:\n' % self.name)
            sys.stderr.flush()
            traceback.print_exc()

util.info('process exiting with exitcode %d' % exitcode)
        return exitcode

#
# We subclass bytes to avoid accidental transmission of auth keys over network
#

class AuthenticationString(bytes):
    def __reduce__(self):
        from .forking import Popen
        if not Popen.thread_is_spawning():
            raise TypeError(
                'Pickling an AuthenticationString object is '
                'disallowed for security reasons'
                )
        return AuthenticationString, (bytes(self),)

#
# Create object representing the main process
#

class _MainProcess(Process):

def __init__(self):
        self._identity = ()
        self._daemonic = False
        self._name = 'MainProcess'
        self._parent_pid = None
        self._popen = None
        self._counter = itertools.count(1)
        self._children = set()
        self._authkey = AuthenticationString(os.urandom(32))
        self._tempdir = None

_current_process = _MainProcess()
del _MainProcess

#
# Give names to some return codes
#

_exitcode_to_name = {}

for name, signum in signal.__dict__.items():
    if name[:3]=='SIG' and '_' not in name:
        _exitcode_to_name[-signum] = name

cmd: