remove 'maxage' argument for read_* methods

'maxage' is not really used at any place. remove it, as this makes
the code cleaner

Change-Id: I6f10b4ab91fc57640336db1832716ca9012eb241
Reviewed-on: https://forge.frm2.tum.de/review/20347
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>

secop/lib/sequence.py

@@ -127,7 +127,7 @@ class SequencerMixin(object):
         """Can be called to check if a sequence is currently running."""
         return self._seq_thread and self._seq_thread.isAlive()
 
-    def read_status(self, maxage=0):
+    def read_status(self):
         if self.seq_is_alive():
             return self.Status.BUSY, u'moving: ' + self._seq_phase
         elif self._seq_error:
@@ -139,7 +139,7 @@ class SequencerMixin(object):
                 return self.Status.ERROR, self._seq_stopped
             return self.Status.WARN, self._seq_stopped
         if hasattr(self, u'read_hw_status'):
-            return self.read_hw_status(maxage)
+            return self.read_hw_status()
         return self.Status.IDLE, u''
 
     def do_stop(self):

secop/metaclass.py

@@ -140,11 +140,11 @@ class ModuleMeta(type):
                     break
                 rfunc = getattr(base, 'read_' + pname, None)
 
-            def wrapped_rfunc(self, maxage=0, pname=pname, rfunc=rfunc):
+            def wrapped_rfunc(self, pname=pname, rfunc=rfunc):
                 if rfunc:
                     self.log.debug("rfunc(%s): call %r" % (pname, rfunc))
                     try:
-                        value = rfunc(self, maxage)
+                        value = rfunc(self)
                     except Exception as e:
                         pobj = self.accessibles[pname]
                         self.DISPATCHER.announce_update_error(self, pname, pobj, e)

secop/modules.py

@@ -352,7 +352,7 @@ class Drivable(Writable):
     # improved polling: may poll faster if module is BUSY
     def pollParams(self, nr=0):
         # poll status first
-        self.read_status(0)
+        self.read_status()
         fastpoll = self.isBusy()
         for pname, pobj in self.parameters.items():
             if not pobj.poll:

secop/simulation.py

@@ -47,7 +47,7 @@ class SimBase(object):
                 self.accessibles[k] = Parameter('extra_param: %s' % k.strip(),
                                        datatype=FloatRange(),
                                        default=0.0)
-                def reader(maxage=0, pname=k):
+                def reader(pname=k):
                     self.log.debug('simulated reading %s' % pname)
                     return self.accessibles[pname].value
                 setattr(self, 'read_' + k, reader)
@@ -71,7 +71,7 @@ class SimBase(object):
     def sim(self):
         return True
 
-    def read_value(self, maxage=0):
+    def read_value(self):
         if 'jitter' in self.accessibles:
             return self._value + self.jitter*(0.5-random.random())
         return self._value
@@ -95,7 +95,7 @@ class SimWritable(SimBase, Writable):
         SimBase.__init__(self, cfgdict)
         Writable.__init__(self, devname, logger, cfgdict, dispatcher)
         self._value = self.accessibles['value'].default
-    def read_value(self, maxage=0):
+    def read_value(self):
         return self.target
     def write_target(self, value):
         self.value = value