Merged revisions 65864 via svnmerge from

benjaminp · benjaminp · commit 58ea9fedc825 · 2008-08-19T19:17:39.000Z
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r65864 | jesse.noller | 2008-08-19 14:06:19 -0500 (Tue, 19 Aug 2008) | 2 lines

  issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included.
........
diff --git a/Doc/includes/mp_distributing.py b/Doc/includes/mp_distributing.py
@@ -17,10 +17,10 @@
 import subprocess
 import logging
 import itertools
-import Queue
+import queue
 
 try:
-    import cPickle as pickle
+    import pickle as pickle
 except ImportError:
     import pickle
 
@@ -152,7 +152,7 @@ def _help_stuff_finish(inqueue, task_handler, size):
 
 def LocalProcess(**kwds):
     p = Process(**kwds)
-    p.set_name('localhost/' + p.get_name())
+    p.set_name('localhost/' + p.name)
     return p
 
 class Cluster(managers.SyncManager):
@@ -210,7 +210,7 @@ def shutdown(self):
         self._base_shutdown()
 
     def Process(self, group=None, target=None, name=None, args=(), kwargs={}):
-        slot = self._slot_iterator.next()
+        slot = next(self._slot_iterator)
         return slot.Process(
             group=group, target=target, name=name, args=args, kwargs=kwargs
             )
@@ -231,7 +231,7 @@ def __iter__(self):
 # Queue subclass used by distributed pool
 #
 
-class SettableQueue(Queue.Queue):
+class SettableQueue(queue.Queue):
     def empty(self):
         return not self.queue
     def full(self):
@@ -243,7 +243,7 @@ def set_contents(self, contents):
         try:
             self.queue.clear()
             self.queue.extend(contents)
-            self.not_empty.notify_all()
+            self.not_empty.notifyAll()
         finally:
             self.not_empty.release()
 
diff --git a/Doc/includes/mp_pool.py b/Doc/includes/mp_pool.py
@@ -14,7 +14,7 @@
 def calculate(func, args):
     result = func(*args)
     return '%s says that %s%s = %s' % (
-        multiprocessing.current_process().get_name(),
+        multiprocessing.current_process().name,
         func.__name__, args, result
         )
 
diff --git a/Doc/includes/mp_synchronize.py b/Doc/includes/mp_synchronize.py
@@ -224,7 +224,7 @@ def test_sharedvalues():
     p.start()
     p.join()
 
-    assert p.get_exitcode() == 0
+    assert p.exitcode == 0
 
 
 ####
diff --git a/Doc/includes/mp_webserver.py b/Doc/includes/mp_webserver.py
@@ -21,7 +21,7 @@
 
 
 def note(format, *args):
-    sys.stderr.write('[%s]\t%s\n' % (current_process().get_name(),format%args))
+    sys.stderr.write('[%s]\t%s\n' % (current_process().name, format%args))
 
 
 class RequestHandler(SimpleHTTPRequestHandler):
diff --git a/Doc/includes/mp_workers.py b/Doc/includes/mp_workers.py
@@ -29,7 +29,7 @@ def worker(input, output):
 def calculate(func, args):
     result = func(*args)
     return '%s says that %s%s = %s' % \
-        (current_process().get_name(), func.__name__, args, result)
+        (current_process().name, func.__name__, args, result)
 
 #
 # Functions referenced by tasks
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
@@ -290,11 +290,11 @@ The :mod:`multiprocessing` package mostly replicates the API of the
       A process cannot join itself because this would cause a deadlock.  It is
       an error to attempt to join a process before it has been started.
 
-   .. method:: get_name()
+   .. attribute:: Process.name
 
       Return the process's name.
 
-   .. method:: set_name(name)
+   .. attribute:: Process.name = name
 
       Set the process's name.
 
@@ -309,11 +309,11 @@ The :mod:`multiprocessing` package mostly replicates the API of the
       Roughly, a process object is alive from the moment the :meth:`start`
       method returns until the child process terminates.
 
-   .. method:: is_daemon()
+   .. attribute:: Process.daemon
 
-      Return the process's daemon flag.
+      Return the process's daemon flag., this is a boolean.
 
-   .. method:: set_daemon(daemonic)
+   .. attribute:: Process.daemon = daemonic
 
       Set the process's daemon flag to the Boolean value *daemonic*.  This must
       be called before :meth:`start` is called.
@@ -329,18 +329,18 @@ The :mod:`multiprocessing` package mostly replicates the API of the
 
    In addition process objects also support the following methods:
 
-   .. method:: get_pid()
+   .. attribute:: Process.pid
 
       Return the process ID.  Before the process is spawned, this will be
       ``None``.
 
-   .. method:: get_exit_code()
+   .. attribute:: Process.exitcode
 
       Return the child's exit code.  This will be ``None`` if the process has
       not yet terminated.  A negative value *-N* indicates that the child was
       terminated by signal *N*.
 
-   .. method:: get_auth_key()
+   .. attribute:: Process.authkey
 
       Return the process's authentication key (a byte string).
 
@@ -349,11 +349,11 @@ The :mod:`multiprocessing` package mostly replicates the API of the
 
       When a :class:`Process` object is created, it will inherit the
       authentication key of its parent process, although this may be changed
-      using :meth:`set_auth_key` below.
+      using :attr:`Process.authkey` below.
 
       See :ref:`multiprocessing-auth-keys`.
 
-   .. method:: set_auth_key(authkey)
+   .. attribute:: Process.authkey = authkey
 
       Set the process's authentication key which must be a byte string.
 
diff --git a/Lib/multiprocessing/dummy/__init__.py b/Lib/multiprocessing/dummy/__init__.py
@@ -47,7 +47,8 @@ def start(self):
         self._parent._children[self] = None
         threading.Thread.start(self)
 
-    def get_exitcode(self):
+    @property
+    def exitcode(self):
         if self._start_called and not self.is_alive():
             return 0
         else:
diff --git a/Lib/multiprocessing/forking.py b/Lib/multiprocessing/forking.py
@@ -315,7 +315,7 @@ def get_preparation_data(name):
             sys_argv=sys.argv,
             log_to_stderr=_log_to_stderr,
             orig_dir=process.ORIGINAL_DIR,
-            authkey=process.current_process().get_authkey(),
+            authkey=process.current_process().authkey,
             )
 
         if _logger is not None:
@@ -363,7 +363,7 @@ def prepare(data):
     old_main_modules.append(sys.modules['__main__'])
 
     if 'name' in data:
-        process.current_process().set_name(data['name'])
+        process.current_process().name = data['name']
 
     if 'authkey' in data:
         process.current_process()._authkey = data['authkey']
diff --git a/Lib/multiprocessing/managers.py b/Lib/multiprocessing/managers.py
@@ -450,7 +450,7 @@ class BaseManager(object):
 
     def __init__(self, address=None, authkey=None, serializer='pickle'):
         if authkey is None:
-            authkey = current_process().get_authkey()
+            authkey = current_process().authkey
         self._address = address     # XXX not final address if eg ('', 0)
         self._authkey = AuthenticationString(authkey)
         self._state = State()
@@ -495,7 +495,7 @@ def start(self):
                   self._serializer, writer),
             )
         ident = ':'.join(str(i) for i in self._process._identity)
-        self._process.set_name(type(self).__name__  + '-' + ident)
+        self._process.name = type(self).__name__  + '-' + ident
         self._process.start()
 
         # get address of server
@@ -696,7 +696,7 @@ def __init__(self, token, serializer, manager=None,
         elif self._manager is not None:
             self._authkey = self._manager._authkey
         else:
-            self._authkey = current_process().get_authkey()
+            self._authkey = current_process().authkey
 
         if incref:
             self._incref()
@@ -705,7 +705,7 @@ def __init__(self, token, serializer, manager=None,
 
     def _connect(self):
         util.debug('making connection to manager')
-        name = current_process().get_name()
+        name = current_process().name
         if threading.current_thread().name != 'MainThread':
             name += '|' + threading.current_thread().name
         conn = self._Client(self._token.address, authkey=self._authkey)
@@ -886,7 +886,7 @@ def AutoProxy(token, serializer, manager=None, authkey=None,
     if authkey is None and manager is not None:
         authkey = manager._authkey
     if authkey is None:
-        authkey = current_process().get_authkey()
+        authkey = current_process().authkey
 
     ProxyType = MakeProxyType('AutoProxy[%s]' % token.typeid, exposed)
     proxy = ProxyType(token, serializer, manager=manager, authkey=authkey,
diff --git a/Lib/multiprocessing/pool.py b/Lib/multiprocessing/pool.py
@@ -99,7 +99,7 @@ def __init__(self, processes=None, initializer=None, initargs=()):
                 args=(self._inqueue, self._outqueue, initializer, initargs)
                 )
             self._pool.append(w)
-            w.name = w.get_name().replace('Process', 'PoolWorker')
+            w.name = w.name.replace('Process', 'PoolWorker')
             w.daemon = True
             w.start()
 
diff --git a/Lib/multiprocessing/process.py b/Lib/multiprocessing/process.py
@@ -132,53 +132,52 @@ def is_alive(self):
         self._popen.poll()
         return self._popen.returncode is None
 
-    def get_name(self):
-        '''
-        Return name of process
-        '''
+    @property
+    def name(self):
         return self._name
 
-    def set_name(self, name):
-        '''
-        Set name of process
-        '''
+    @name.setter
+    def name(self, name):
         assert isinstance(name, str), 'name must be a string'
         self._name = name
 
-    def is_daemon(self):
+    @property
+    def daemon(self):
         '''
         Return whether process is a daemon
         '''
         return self._daemonic
 
-    def set_daemon(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
 
-    def get_authkey(self):
-        '''
-        Return authorization key of process
-        '''
+    @property
+    def authkey(self):
         return self._authkey
 
-    def set_authkey(self, authkey):
+    @authkey.setter
+    def authkey(self, authkey):
         '''
         Set authorization key of process
         '''
         self._authkey = AuthenticationString(authkey)
 
-    def get_exitcode(self):
+    @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()
 
-    def get_ident(self):
+    @property
+    def ident(self):
         '''
         Return indentifier (PID) of process or `None` if it has yet to start
         '''
@@ -187,7 +186,7 @@ def get_ident(self):
         else:
             return self._popen and self._popen.pid
 
-    pid = property(get_ident)
+    pid = ident
 
     def __repr__(self):
         if self is _current_process:
@@ -198,7 +197,7 @@ def __repr__(self):
             status = 'initial'
         else:
             if self._popen.poll() is not None:
-                status = self.get_exitcode()
+                status = self.exitcode
             else:
                 status = 'started'
 
@@ -245,7 +244,7 @@ def _bootstrap(self):
         except:
             exitcode = 1
             import traceback
-            sys.stderr.write('Process %s:\n' % self.get_name())
+            sys.stderr.write('Process %s:\n' % self.name)
             sys.stderr.flush()
             traceback.print_exc()
 
diff --git a/Lib/multiprocessing/reduction.py b/Lib/multiprocessing/reduction.py
@@ -82,9 +82,9 @@ def _get_listener():
         try:
             if _listener is None:
                 debug('starting listener and thread for sending handles')
-                _listener = Listener(authkey=current_process().get_authkey())
+                _listener = Listener(authkey=current_process().authkey)
                 t = threading.Thread(target=_serve)
-                t.set_daemon(True)
+                t.daemon = True
                 t.start()
         finally:
             _lock.release()
@@ -127,7 +127,7 @@ def rebuild_handle(pickled_data):
     if inherited:
         return handle
     sub_debug('rebuilding handle %d', handle)
-    conn = Client(address, authkey=current_process().get_authkey())
+    conn = Client(address, authkey=current_process().authkey)
     conn.send((handle, os.getpid()))
     new_handle = recv_handle(conn)
     conn.close()
diff --git a/Lib/multiprocessing/synchronize.py b/Lib/multiprocessing/synchronize.py
@@ -108,9 +108,9 @@ def __init__(self):
     def __repr__(self):
         try:
             if self._semlock._is_mine():
-                name = current_process().get_name()
-                if threading.current_thread().get_name() != 'MainThread':
-                    name += '|' + threading.current_thread().get_name()
+                name = current_process().name
+                if threading.current_thread().name != 'MainThread':
+                    name += '|' + threading.current_thread().name
             elif self._semlock._get_value() == 1:
                 name = 'None'
             elif self._semlock._count() > 0:
@@ -133,9 +133,9 @@ def __init__(self):
     def __repr__(self):
         try:
             if self._semlock._is_mine():
-                name = current_process().get_name()
-                if threading.current_thread().get_name() != 'MainThread':
-                    name += '|' + threading.current_thread().get_name()
+                name = current_process().name
+                if threading.current_thread().name != 'MainThread':
+                    name += '|' + threading.current_thread().name
                 count = self._semlock._count()
             elif self._semlock._get_value() == 1:
                 name, count = 'None', 0
diff --git a/Lib/multiprocessing/util.py b/Lib/multiprocessing/util.py
@@ -274,11 +274,11 @@ def _exit_function():
 
     for p in active_children():
         if p._daemonic:
-            info('calling terminate() for daemon %s', p.get_name())
+            info('calling terminate() for daemon %s', p.name)
             p._popen.terminate()
 
     for p in active_children():
-        info('calling join() for process %s', p.get_name())
+        info('calling join() for process %s', p.name)
         p.join()
 
     debug('running the remaining "atexit" finalizers')
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py

Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@`
`14`	`14`	`def calculate(func, args):`
`15`	`15`	`result = func(*args)`
`16`	`16`	`return '%s says that %s%s = %s' % (`
`17`		`- multiprocessing.current_process().get_name(),`
	`17`	`+ multiprocessing.current_process().name,`
`18`	`18`	`func.__name__, args, result`
`19`	`19`	`)`
`20`	`20`
Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ def worker(input, output):`
`29`	`29`	`def calculate(func, args):`
`30`	`30`	`result = func(*args)`
`31`	`31`	`return '%s says that %s%s = %s' % \`
`32`		`- (current_process().get_name(), func.__name__, args, result)`
	`32`	`+ (current_process().name, func.__name__, args, result)`
`33`	`33`
`34`	`34`	`#`
`35`	`35`	`# Functions referenced by tasks`
Original file line number	Diff line number	Diff line change
`@@ -99,7 +99,7 @@ def __init__(self, processes=None, initializer=None, initargs=()):`
`99`	`99`	`args=(self._inqueue, self._outqueue, initializer, initargs)`
`100`	`100`	`)`
`101`	`101`	`self._pool.append(w)`
`102`		`- w.name = w.get_name().replace('Process', 'PoolWorker')`
	`102`	`+ w.name = w.name.replace('Process', 'PoolWorker')`
`103`	`103`	`w.daemon = True`
`104`	`104`	`w.start()`
`105`	`105`