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annotate vxi.py @ 79:84f96c5fe791

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Use different message ID that does not result in "Query UNTERMINATE" messages in the error log. Fix testsrq. Rename queryrsb to querystb as that matches the operating manual.
author Daniel O'Connor <doconnor@gsoft.com.au>
date Fri, 27 Sep 2024 16:53:43 +0930
parents 12b6a3a0a481
children
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6fe43d62c73b Add a wrapper around vxi_11_connection so it acts like the other classes.
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1 #!/usr/bin/env python
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2
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3 # Copyright (c) 2011
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4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
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5 #
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6 # Redistribution and use in source and binary forms, with or without
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7 # modification, are permitted provided that the following conditions
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8 # are met:
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9 # 1. Redistributions of source code must retain the above copyright
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10 # notice, this list of conditions and the following disclaimer.
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11 # 2. Redistributions in binary form must reproduce the above copyright
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12 # notice, this list of conditions and the following disclaimer in the
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13 # documentation and/or other materials provided with the distribution.
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14 #
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15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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25 # SUCH DAMAGE.
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26 #
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28 # A wrapper to make vxi_11 behave more like we expect
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29
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30 import exceptions
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31 import vxi_11
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32
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33 class VXIDevice(object):
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34 def __init__(self, host, device):
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35 self.v = vxi_11.vxi_11_connection(host, device = device, timeout = 1500)
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37 def flush(self, timeout = None):
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38 pass
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39
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40 def write(self, data):
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41 err, base = self.v.write(data)
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42 if err != 0:
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43 raise exceptions.IOError("Error writing " + str(err))
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45 def read(self, timeout = None):
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46 if timeout != None:
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47 timeout = int(timeout * 1000.0) # Convert to msec
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49 err, reason, result = self.v.read(timeout)
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50 if err != 0:
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51 raise exceptions.IOError("Error reading %d, reason %d" % (err, reason))
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52 return result