/usr/lib/python2.7/dist-packages/sardana/macroserver/macros/communication.py is in python-sardana 1.2.0-2.
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##
## This file is part of Sardana
##
## http://www.tango-controls.org/static/sardana/latest/doc/html/index.html
##
## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
## Sardana is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Sardana is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with Sardana. If not, see <http://www.gnu.org/licenses/>.
##
##############################################################################
"""This is the standard macro module"""
__docformat__ = 'restructuredtext'
__all__ = ["get", "put"]
from sardana.macroserver.macro import *
import array
class put(Macro):
"""Sends a string to the communication channel"""
param_def = [
['communication channel', Type.ComChannel, None, 'the communication channel'],
['data', Type.String, None, 'data to be sent']
]
def run(self, comch, data):
name = comch.getName()
nb = comch.write(data)
o = str(nb) + " bytes sent to " + name
self.output(o)
class get(Macro):
"""Reads and outputs the data from the communication channel"""
param_def = [
['communication channel', Type.ComChannel, None, 'the communication channel'],
['maximum length', Type.String, -1, 'maximum number of bytes to read']
]
def run(self, comch, maxlen):
name = comch.getName()
data = comch.command_inout("read",maxlen)
datastr = array.array('B',data).tostring()
self.output("'" + datastr + "'")
self.output(data)
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