source: trunk/packages/xen-3.1/xen-3.1/tools/python/xen/web/protocol.py @ 34

Last change on this file since 34 was 34, checked in by hartmans, 18 years ago

Add xen and xen-common

File size: 1.4 KB
Line 
1#============================================================================
2# This library is free software; you can redistribute it and/or
3# modify it under the terms of version 2.1 of the GNU Lesser General Public
4# License as published by the Free Software Foundation.
5#
6# This library is distributed in the hope that it will be useful,
7# but WITHOUT ANY WARRANTY; without even the implied warranty of
8# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
9# Lesser General Public License for more details.
10#
11# You should have received a copy of the GNU Lesser General Public
12# License along with this library; if not, write to the Free Software
13# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
14#============================================================================
15# Copyright (C) 2005 Mike Wray <mike.wray@hp.com>
16# Copyright (C) 2005 XenSource Ltd.
17#============================================================================
18
19class Protocol:
20
21    def __init__(self):
22        self.transport = None
23
24    def setTransport(self, transport):
25        self.transport = transport
26
27    def dataReceived(self, data):
28        raise NotImplementedError()
29
30    def write(self, data):
31        if self.transport:
32            return self.transport.write(data)
33        else:
34            return 0
35
36    def read(self):
37        if self.transport:
38            return self.transport.read()
39        else:
40            return None
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