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/__init__.py (7627B)

#
# Package analogous to 'threading.py' but using processes
#
# multiprocessing/__init__.py
#
# This package is intended to duplicate the functionality (and much of
# the API) of threading.py but uses processes instead of threads.  A
# subpackage 'multiprocessing.dummy' has the same API but is a simple
# wrapper for 'threading'.
#
# Try calling `multiprocessing.doc.main()` to read the html
# documentation in in a webbrowser.
#
#
# Copyright (c) 2006-2008, R Oudkerk
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. Neither the name of author nor the names of any contributors may be
#    used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#

__version__ = '0.70a1'

__all__ = [
    'Process', 'current_process', 'active_children', 'freeze_support',
    'Manager', 'Pipe', 'cpu_count', 'log_to_stderr', 'get_logger',
    'allow_connection_pickling', 'BufferTooShort', 'TimeoutError',
    'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', 'Condition',
    'Event', 'Queue', 'JoinableQueue', 'Pool', 'Value', 'Array',
    'RawValue', 'RawArray', 'SUBDEBUG', 'SUBWARNING',
    ]

__author__ = 'R. Oudkerk (r.m.oudkerk@gmail.com)'

#
# Imports
#

import os
import sys

from multiprocessing.process import Process, current_process, active_children
from multiprocessing.util import SUBDEBUG, SUBWARNING

#
# Exceptions
#

class ProcessError(Exception):
    pass

class BufferTooShort(ProcessError):
    pass

class TimeoutError(ProcessError):
    pass

class AuthenticationError(ProcessError):
    pass

# This is down here because _multiprocessing uses BufferTooShort
import _multiprocessing

#
# Definitions not depending on native semaphores
#

def Manager():
    '''
    Returns a manager associated with a running server process

The managers methods such as `Lock()`, `Condition()` and `Queue()`
    can be used to create shared objects.
    '''
    from multiprocessing.managers import SyncManager
    m = SyncManager()
    m.start()
    return m

def Pipe(duplex=True):
    '''
    Returns two connection object connected by a pipe
    '''
    from multiprocessing.connection import Pipe
    return Pipe(duplex)

def cpu_count():
    '''
    Returns the number of CPUs in the system
    '''
    if sys.platform == 'win32':
        try:
            num = int(os.environ['NUMBER_OF_PROCESSORS'])
        except (ValueError, KeyError):
            num = 0
    elif 'bsd' in sys.platform or sys.platform == 'darwin':
        try:
            num = int(os.popen('sysctl -n hw.ncpu').read())
        except ValueError:
            num = 0
    else:
        try:
            num = os.sysconf('SC_NPROCESSORS_ONLN')
        except (ValueError, OSError, AttributeError):
            num = 0

if num >= 1:
        return num
    else:
        raise NotImplementedError('cannot determine number of cpus')

def freeze_support():
    '''
    Check whether this is a fake forked process in a frozen executable.
    If so then run code specified by commandline and exit.
    '''
    if sys.platform == 'win32' and getattr(sys, 'frozen', False):
        from multiprocessing.forking import freeze_support
        freeze_support()

def get_logger():
    '''
    Return package logger -- if it does not already exist then it is created
    '''
    from multiprocessing.util import get_logger
    return get_logger()

def log_to_stderr(level=None):
    '''
    Turn on logging and add a handler which prints to stderr
    '''
    from multiprocessing.util import log_to_stderr
    return log_to_stderr(level)

def allow_connection_pickling():
    '''
    Install support for sending connections and sockets between processes
    '''
    from multiprocessing import reduction

#
# Definitions depending on native semaphores
#

def Lock():
    '''
    Returns a non-recursive lock object
    '''
    from multiprocessing.synchronize import Lock
    return Lock()

def RLock():
    '''
    Returns a recursive lock object
    '''
    from multiprocessing.synchronize import RLock
    return RLock()

def Condition(lock=None):
    '''
    Returns a condition object
    '''
    from multiprocessing.synchronize import Condition
    return Condition(lock)

def Semaphore(value=1):
    '''
    Returns a semaphore object
    '''
    from multiprocessing.synchronize import Semaphore
    return Semaphore(value)

def BoundedSemaphore(value=1):
    '''
    Returns a bounded semaphore object
    '''
    from multiprocessing.synchronize import BoundedSemaphore
    return BoundedSemaphore(value)

def Event():
    '''
    Returns an event object
    '''
    from multiprocessing.synchronize import Event
    return Event()

def Queue(maxsize=0):
    '''
    Returns a queue object
    '''
    from multiprocessing.queues import Queue
    return Queue(maxsize)

def JoinableQueue(maxsize=0):
    '''
    Returns a queue object
    '''
    from multiprocessing.queues import JoinableQueue
    return JoinableQueue(maxsize)

def Pool(processes=None, initializer=None, initargs=()):
    '''
    Returns a process pool object
    '''
    from multiprocessing.pool import Pool
    return Pool(processes, initializer, initargs)

def RawValue(typecode_or_type, *args):
    '''
    Returns a shared object
    '''
    from multiprocessing.sharedctypes import RawValue
    return RawValue(typecode_or_type, *args)

def RawArray(typecode_or_type, size_or_initializer):
    '''
    Returns a shared array
    '''
    from multiprocessing.sharedctypes import RawArray
    return RawArray(typecode_or_type, size_or_initializer)

def Value(typecode_or_type, *args, **kwds):
    '''
    Returns a synchronized shared object
    '''
    from multiprocessing.sharedctypes import Value
    return Value(typecode_or_type, *args, **kwds)

def Array(typecode_or_type, size_or_initializer, **kwds):
    '''
    Returns a synchronized shared array
    '''
    from multiprocessing.sharedctypes import Array
    return Array(typecode_or_type, size_or_initializer, **kwds)

#
#
#

if sys.platform == 'win32':

def set_executable(executable):
        '''
        Sets the path to a python.exe or pythonw.exe binary used to run
        child processes on Windows instead of sys.executable.
        Useful for people embedding Python.
        '''
        from multiprocessing.forking import set_executable
        set_executable(executable)

__all__ += ['set_executable']

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