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diff --git a/Lib/idlelib/protocol.py b/Lib/idlelib/protocol.py
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+++ b/Lib/idlelib/protocol.py
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+"""protocol        (David Scherer <dscherer@cmu.edu>)
+
+     This module implements a simple RPC or "distributed object" protocol.
+     I am probably the 100,000th person to write this in Python, but, hey,
+     it was fun.
+
+     Contents:
+
+       connectionLost is an exception that will be thrown by functions in
+           the protocol module or calls to remote methods that fail because
+           the remote program has closed the socket or because no connection
+           could be established in the first place.
+
+       Server( port=None, connection_hook=None ) creates a server on a
+           well-known port, to which clients can connect.  When a client
+           connects, a Connection is created for it.  If connection_hook
+           is defined, then connection_hook( socket.getpeername() ) is called
+           before a Connection is created, and if it returns false then the
+           connection is refused.  connection_hook must be prepared to be
+           called from any thread.
+  
+       Client( ip='127.0.0.1', port=None ) returns a Connection to a Server
+           object at a well-known address and port.
+  
+       Connection( socket ) creates an RPC connection on an arbitrary socket,
+           which must already be connected to another program.  You do not
+           need to use this directly if you are using Client() or Server().
+  
+       publish( name, connect_function ) provides an object with the
+           specified name to some or all Connections.  When another program
+           calls Connection.getobject() with the specified name, the
+           specified connect_function is called with the arguments
+
+              connect_function( conn, addr )
+
+           where conn is the Connection object to the requesting client and
+           addr is the address returned by socket.getpeername().  If that
+           function returns an object, that object becomes accessible to
+           the caller.  If it returns None, the caller's request fails.
+
+     Connection objects:
+
+       .close() refuses additional RPC messages from the peer, and notifies
+           the peer that the connection has been closed.  All pending remote
+           method calls in either program will fail with a connectionLost
+           exception.  Further remote method calls on this connection will
+           also result in errors.
+
+       .getobject(name) returns a proxy for the remote object with the
+           specified name, if it exists and the peer permits us access.
+           Otherwise, it returns None.  It may throw a connectionLost
+           exception.  The returned proxy supports basic attribute access
+           and method calls, and its methods have an extra attribute,
+           .void, which is a function that has the same effect but always
+           returns None.  This last capability is provided as a performance
+           hack: object.method.void(params) can return without waiting for
+           the remote process to respond, but object.method(params) needs
+           to wait for a return value or exception.
+
+       .rpc_loop(block=0) processes *incoming* messages for this connection.
+           If block=1, it continues processing until an exception or return
+           value is received, which is normally forever.  Otherwise it
+           returns when all currently pending messages have been delivered.
+           It may throw a connectionLost exception.
+
+       .set_close_hook(f) specifies a function to be called when the remote
+           object closes the connection during a call to rpc_loop().  This
+           is a good way for servers to be notified when clients disconnect.
+
+       .set_shutdown_hook(f) specifies a function called *immediately* when
+           the receive loop detects that the connection has been lost.  The
+           provided function must be prepared to run in any thread.
+
+     Server objects:
+
+       .rpc_loop() processes incoming messages on all connections, and
+           returns when all pending messages have been processed.  It will
+           *not* throw connectionLost exceptions; the
+           Connection.set_close_hook() mechanism is much better for servers.
+"""
+
+import sys, os, string, types
+import socket
+from threading import Thread
+from Queue import Queue, Empty
+from cPickle import Pickler, Unpickler, PicklingError
+
+class connectionLost:
+    def __init__(self, what=""): self.what = what
+    def __repr__(self): return self.what
+    def __str__(self): return self.what
+
+def getmethods(cls):
+    "Returns a list of the names of the methods of a class."
+    methods = []
+    for b in cls.__bases__:
+        methods = methods + getmethods(b)
+    d = cls.__dict__
+    for k in d.keys():
+        if type(d[k])==types.FunctionType:
+            methods.append(k)
+    return methods
+
+class methodproxy:
+    "Proxy for a method of a remote object."
+    def __init__(self, classp, name):
+        self.classp=classp
+        self.name=name
+        self.client = classp.client
+    def __call__(self, *args, **keywords):
+        return self.client.call( 'm', self.classp.name, self.name, args, keywords )
+
+    def void(self, *args, **keywords):
+        self.client.call_void( 'm', self.classp.name,self.name,args,keywords)
+
+class classproxy:
+    "Proxy for a remote object."
+    def __init__(self, client, name, methods):
+        self.__dict__['client'] = client
+        self.__dict__['name'] = name
+        
+        for m in methods:
+            prox = methodproxy( self, m )
+            self.__dict__[m] = prox
+
+    def __getattr__(self, attr):
+        return self.client.call( 'g', self.name, attr )
+
+    def __setattr__(self, attr, value):
+        self.client.call_void( 's', self.name, attr, value )
+
+local_connect  = {}
+def publish(name, connect_function):
+    local_connect[name]=connect_function
+
+class socketFile:
+    "File emulator based on a socket.  Provides only blocking semantics for now."
+
+    def __init__(self, socket):
+        self.socket = socket
+        self.buffer = ''
+
+    def _recv(self,bytes):
+        try:
+            r=self.socket.recv(bytes)
+        except:
+            raise connectionLost()
+        if not r:
+            raise connectionLost()
+        return r
+
+    def write(self, string):
+        try:
+            self.socket.send( string )
+        except:
+            raise connectionLost()
+
+    def read(self,bytes):
+        x = bytes-len(self.buffer)
+        while x>0:
+            self.buffer=self.buffer+self._recv(x)
+            x = bytes-len(self.buffer)
+        s = self.buffer[:bytes]
+        self.buffer=self.buffer[bytes:]
+        return s
+
+    def readline(self):
+        while 1:
+            f = string.find(self.buffer,'\n')
+            if f>=0:
+                s = self.buffer[:f+1]
+                self.buffer=self.buffer[f+1:]
+                return s
+            self.buffer = self.buffer + self._recv(1024)
+
+
+class Connection (Thread):
+    debug = 0
+    def __init__(self, socket):
+        self.local_objects = {}
+        self.socket = socket
+        self.name = socket.getpeername()
+        self.socketfile = socketFile(socket)
+        self.queue = Queue(-1)
+        self.refuse_messages = 0
+        self.cmds = { 'm': self.r_meth,
+                      'g': self.r_get,
+                      's': self.r_set,
+                      'o': self.r_geto,
+                      'e': self.r_exc,
+                     #'r' handled by rpc_loop
+                    }
+
+        Thread.__init__(self)
+        self.setDaemon(1)
+        self.start()
+
+    def getobject(self, name):
+        methods = self.call( 'o', name )
+        if methods is None: return None
+        return classproxy(self, name, methods)
+
+    # close_hook is called from rpc_loop(), like a normal remote method
+    #   invocation
+    def set_close_hook(self,hook): self.close_hook = hook
+
+    # shutdown_hook is called directly from the run() thread, and needs
+    #   to be "thread safe"
+    def set_shutdown_hook(self,hook): self.shutdown_hook = hook
+
+    close_hook = None
+    shutdown_hook = None
+
+    def close(self):
+        self._shutdown()
+        self.refuse_messages = 1
+
+    def call(self, c, *args):
+        self.send( (c, args, 1 ) )
+        return self.rpc_loop( block = 1 )
+
+    def call_void(self, c, *args):
+        try:
+            self.send( (c, args, 0 ) )
+        except:
+            pass
+   
+    # the following methods handle individual RPC calls:
+
+    def r_geto(self, obj):
+        c = local_connect.get(obj)
+        if not c: return None
+        o = c(self, self.name)
+        if not o: return None
+        self.local_objects[obj] = o
+        return getmethods(o.__class__)
+
+    def r_meth(self, obj, name, args, keywords):
+        return apply( getattr(self.local_objects[obj],name), args, keywords)
+
+    def r_get(self, obj, name):       
+        return getattr(self.local_objects[obj],name)
+
+    def r_set(self, obj, name, value):
+        setattr(self.local_objects[obj],name,value)
+
+    def r_exc(self, e, v):
+        raise e, v
+
+    def rpc_exec(self, cmd, arg, ret):
+        if self.refuse_messages: return
+        if self.debug: print cmd,arg,ret
+        if ret:
+            try:
+                r=apply(self.cmds.get(cmd), arg)
+                self.send( ('r', r, 0) )
+            except:
+                try:
+                    self.send( ('e', sys.exc_info()[:2], 0) )
+                except PicklingError:
+                    self.send( ('e', (TypeError, 'Unpicklable exception.'), 0 ) )
+        else:
+            # we cannot report exceptions to the caller, so
+            #   we report them in this process.
+            r=apply(self.cmds.get(cmd), arg)
+
+    # the following methods implement the RPC and message loops:
+
+    def rpc_loop(self, block=0):
+        if self.refuse_messages: raise connectionLost('(already closed)')
+        try:
+            while 1:
+                try:
+                    cmd, arg, ret = self.queue.get( block )
+                except Empty:
+                    return None
+                if cmd=='r': return arg
+                self.rpc_exec(cmd,arg,ret)
+        except connectionLost:
+            if self.close_hook:
+                self.close_hook()
+                self.close_hook = None
+            raise
+
+    def run(self):
+        try:
+            while 1:
+                data = self.recv()
+                self.queue.put( data )
+        except:
+            self.queue.put( ('e', sys.exc_info()[:2], 0) )
+
+    # The following send raw pickled data to the peer
+
+    def send(self, data):
+        try:
+            Pickler(self.socketfile,1).dump( data )
+        except connectionLost:
+            self._shutdown()
+            if self.shutdown_hook: self.shutdown_hook()
+            raise
+
+    def recv(self):
+        try:
+            return Unpickler(self.socketfile).load()
+        except connectionLost:
+            self._shutdown()
+            if self.shutdown_hook: self.shutdown_hook()
+            raise
+        except:
+            raise
+
+    def _shutdown(self):
+        try:
+            self.socket.shutdown(1)
+            self.socket.close()
+        except:
+            pass
+
+
+class Server (Thread):
+    default_port = 0x1D1E   # "IDlE"
+
+    def __init__(self, port=None, connection_hook=None):
+        self.connections = []
+        self.port = port or self.default_port
+        self.connection_hook = connection_hook
+
+        try:
+            self.wellknown = s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            s.bind('', self.port)
+            s.listen(3)
+        except:
+            raise connectionLost
+
+        Thread.__init__(self)
+        self.setDaemon(1)
+        self.start()
+
+    def run(self):
+        s = self.wellknown
+        while 1:
+            conn, addr = s.accept()
+            if self.connection_hook and not self.connection_hook(addr):
+                try:
+                    conn.shutdown(1)
+                except:
+                    pass
+                continue
+            self.connections.append( Connection(conn) )
+
+    def rpc_loop(self):
+        cns = self.connections[:]
+        for c in cns:
+            try:
+                c.rpc_loop(block = 0)
+            except connectionLost:
+                if c in self.connections:
+                    self.connections.remove(c)
+
+def Client(ip='127.0.0.1', port=None):
+    try:
+        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        s.connect(ip,port or Server.default_port)
+    except socket.error, what:
+        raise connectionLost(str(what))
+    except:
+        raise connectionLost()
+    return Connection(s)