--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/pdist/client.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,157 @@
+"""RPC Client module."""
+
+import sys
+import socket
+import pickle
+import __builtin__
+import os
+
+
+# Default verbosity (0 = silent, 1 = print connections, 2 = print requests too)
+VERBOSE = 1
+
+
+class Client:
+
+    """RPC Client class.  No need to derive a class -- it's fully generic."""
+
+    def __init__(self, address, verbose = VERBOSE):
+        self._pre_init(address, verbose)
+        self._post_init()
+
+    def _pre_init(self, address, verbose = VERBOSE):
+        if type(address) == type(0):
+            address = ('', address)
+        self._address = address
+        self._verbose = verbose
+        if self._verbose: print "Connecting to %s ..." % repr(address)
+        self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self._socket.connect(address)
+        if self._verbose: print "Connected."
+        self._lastid = 0 # Last id for which a reply has been received
+        self._nextid = 1 # Id of next request
+        self._replies = {} # Unprocessed replies
+        self._rf = self._socket.makefile('r')
+        self._wf = self._socket.makefile('w')
+
+    def _post_init(self):
+        self._methods = self._call('.methods')
+
+    def __del__(self):
+        self._close()
+
+    def _close(self):
+        if self._rf: self._rf.close()
+        self._rf = None
+        if self._wf: self._wf.close()
+        self._wf = None
+        if self._socket: self._socket.close()
+        self._socket = None
+
+    def __getattr__(self, name):
+        if name in self._methods:
+            method = _stub(self, name)
+            setattr(self, name, method) # XXX circular reference
+            return method
+        raise AttributeError, name
+
+    def _setverbose(self, verbose):
+        self._verbose = verbose
+
+    def _call(self, name, *args):
+        return self._vcall(name, args)
+
+    def _vcall(self, name, args):
+        return self._recv(self._vsend(name, args))
+
+    def _send(self, name, *args):
+        return self._vsend(name, args)
+
+    def _send_noreply(self, name, *args):
+        return self._vsend(name, args, 0)
+
+    def _vsend_noreply(self, name, args):
+        return self._vsend(name, args, 0)
+
+    def _vsend(self, name, args, wantreply = 1):
+        id = self._nextid
+        self._nextid = id+1
+        if not wantreply: id = -id
+        request = (name, args, id)
+        if self._verbose > 1: print "sending request: %s" % repr(request)
+        wp = pickle.Pickler(self._wf)
+        wp.dump(request)
+        return id
+
+    def _recv(self, id):
+        exception, value, rid = self._vrecv(id)
+        if rid != id:
+            raise RuntimeError, "request/reply id mismatch: %d/%d" % (id, rid)
+        if exception is None:
+            return value
+        x = exception
+        if hasattr(__builtin__, exception):
+            x = getattr(__builtin__, exception)
+        elif exception in ('posix.error', 'mac.error'):
+            x = os.error
+        if x == exception:
+            exception = x
+        raise exception, value
+
+    def _vrecv(self, id):
+        self._flush()
+        if self._replies.has_key(id):
+            if self._verbose > 1: print "retrieving previous reply, id = %d" % id
+            reply = self._replies[id]
+            del self._replies[id]
+            return reply
+        aid = abs(id)
+        while 1:
+            if self._verbose > 1: print "waiting for reply, id = %d" % id
+            rp = pickle.Unpickler(self._rf)
+            reply = rp.load()
+            del rp
+            if self._verbose > 1: print "got reply: %s" % repr(reply)
+            rid = reply[2]
+            arid = abs(rid)
+            if arid == aid:
+                if self._verbose > 1: print "got it"
+                return reply
+            self._replies[rid] = reply
+            if arid > aid:
+                if self._verbose > 1: print "got higher id, assume all ok"
+                return (None, None, id)
+
+    def _flush(self):
+        self._wf.flush()
+
+
+from security import Security
+
+
+class SecureClient(Client, Security):
+
+    def __init__(self, *args):
+        import string
+        apply(self._pre_init, args)
+        Security.__init__(self)
+        self._wf.flush()
+        line = self._rf.readline()
+        challenge = string.atoi(string.strip(line))
+        response = self._encode_challenge(challenge)
+        line = repr(long(response))
+        if line[-1] in 'Ll': line = line[:-1]
+        self._wf.write(line + '\n')
+        self._wf.flush()
+        self._post_init()
+
+class _stub:
+
+    """Helper class for Client -- each instance serves as a method of the client."""
+
+    def __init__(self, client, name):
+        self._client = client
+        self._name = name
+
+    def __call__(self, *args):
+        return self._client._vcall(self._name, args)