Mercurial > ~darius > hgwebdir.cgi > pyinst

comparison vxi.py @ 24:6fe43d62c73b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add a wrapper around vxi_11_connection so it acts like the other classes.
author Daniel O'Connor <darius@dons.net.au>
date Thu, 11 Aug 2011 21:20:13 +0930
parents
children 12b6a3a0a481
comparison
equal deleted inserted replaced
23:876d951bbcc0 24:6fe43d62c73b
1 #!/usr/bin/env python
2
3 # Copyright (c) 2011
4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
5 #
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
8 # are met:
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
14 #
15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 # SUCH DAMAGE.
26 #
27
28 # A wrapper to make vxi_11 behave more like we expect
29
30 import exceptions
31 import vxi_11
32
33 class VXIDevice(object):
34 def __init__(self, host, device):
35 self.v = vxi_11.vxi_11_connection(host, device = device)
36
37 def flush(self, timeout = None):
38 pass
39
40 def write(self, data):
41 err, base = self.v.write(data)
42 if err != 0:
43 raise exceptions.IOError("Error writing " + str(err))
44
45 def read(self, timeout = None):
46 if timeout != None:
47 timeout = int(timeout * 1000.0) # Convert to msec
48
49 err, reason, result = self.v.read(timeout)
50 if err != 0:
51 raise exceptions.IOError("Error reading %d, reason %d" % (err, reason))
52 return result