new poll mechanism
- remove secop.poller and basic poller - regular polls for 'important' parameters done by method doPoll - all other parameters are polled slower (slowInterval) and with lower priority (only one at a time when main poll is due) - nopoll decorator for read_* to disable poll - enablePoll attribute (default True) for disabling polling a module - fast polls may be implemented by means of a statemachine - configurable slow poll interval + allow a Parameter to override a Property (parameter Readable.pollinterval overrides Module.pollinterval) Change-Id: Ib1b3453041a233678b7c4b4add22ac399670e447 Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/27832 Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de> Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch> Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
This commit is contained in:
@ -69,8 +69,8 @@ def test_handler():
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data = []
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class Mod(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@ReadHandler(['a', 'b'])
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def read_hdl(self, pname):
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@ -115,8 +115,8 @@ def test_common_handler():
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data = []
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class Mod(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@CommonReadHandler(['a', 'b'])
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def read_hdl(self):
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@ -164,8 +164,8 @@ def test_common_handler():
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def test_nopoll():
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class Mod1(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@ReadHandler(['a', 'b'])
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def read_hdl(self):
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@ -175,8 +175,8 @@ def test_nopoll():
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assert Mod1.read_b.poll is True
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class Mod2(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@CommonReadHandler(['a', 'b'])
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def read_hdl(self):
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@ -186,8 +186,8 @@ def test_nopoll():
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assert Mod2.read_b.poll is False
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class Mod3(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@ReadHandler(['a', 'b'])
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@nopoll
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@ -198,8 +198,8 @@ def test_nopoll():
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assert Mod3.read_b.poll is False
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class Mod4(ModuleTest):
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a = Parameter('', FloatRange(), readonly=False, poll=True)
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b = Parameter('', FloatRange(), readonly=False, poll=True)
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a = Parameter('', FloatRange(), readonly=False)
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b = Parameter('', FloatRange(), readonly=False)
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@nopoll
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@ReadHandler(['a', 'b'])
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@ -22,15 +22,15 @@
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# *****************************************************************************
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"""test data types."""
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import sys
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import threading
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import pytest
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from secop.datatypes import BoolType, FloatRange, StringType, IntRange, ScaledInteger
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from secop.errors import ProgrammingError, ConfigError
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from secop.modules import Communicator, Drivable, Readable, Module
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from secop.params import Command, Parameter
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from secop.poller import BasicPoller
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from secop.lib.multievent import MultiEvent
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from secop.rwhandler import ReadHandler, WriteHandler
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from secop.rwhandler import ReadHandler, WriteHandler, nopoll
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from secop.lib import generalConfig
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@ -67,11 +67,19 @@ class ServerStub:
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self.dispatcher = DispatcherStub(updates)
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class DummyMultiEvent(threading.Event):
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def get_trigger(self):
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def trigger(event=self):
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event.set()
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sys.exit()
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return trigger
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def test_Communicator():
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o = Communicator('communicator', LoggerStub(), {'.description': ''}, ServerStub({}))
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o.earlyInit()
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o.initModule()
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event = MultiEvent()
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event = DummyMultiEvent()
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o.startModule(event)
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assert event.is_set() # event should be set immediately
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@ -96,8 +104,6 @@ def test_ModuleMagic():
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"""another stuff"""
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return not arg
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pollerClass = BasicPoller
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def read_param1(self):
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return True
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@ -107,6 +113,7 @@ def test_ModuleMagic():
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def read_a1(self):
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return True
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@nopoll
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def read_a2(self):
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return True
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@ -140,8 +147,10 @@ def test_ModuleMagic():
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value = Parameter(datatype=FloatRange(unit='deg'))
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target = Parameter(datatype=FloatRange(), default=0)
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a1 = Parameter(datatype=FloatRange(unit='$/s'), readonly=False)
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# remark: it might be a programming error to override the datatype
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# and not overriding the read_* method. This is not checked!
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b2 = Parameter('<b2>', datatype=BoolType(), default=True,
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poll=True, readonly=False, initwrite=True)
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readonly=False, initwrite=True)
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def write_a1(self, value):
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self._a1_written = value
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@ -182,12 +191,13 @@ def test_ModuleMagic():
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'value': 'first'}
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assert updates.pop('o1') == expectedBeforeStart
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o1.earlyInit()
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event = MultiEvent()
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event = DummyMultiEvent()
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o1.startModule(event)
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event.wait()
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# should contain polled values
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expectedAfterStart = {'status': (Drivable.Status.IDLE, 'ok'),
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'value': 'second'}
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expectedAfterStart = {
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'status': (Drivable.Status.IDLE, 'ok'), 'value': 'second',
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'param1': True, 'param2': 0.0, 'a1': True}
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assert updates.pop('o1') == expectedAfterStart
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# check in addition if parameters are written
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@ -197,11 +207,12 @@ def test_ModuleMagic():
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expectedBeforeStart['target'] = 0.0
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assert updates.pop('o2') == expectedBeforeStart
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o2.earlyInit()
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event = MultiEvent()
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event = DummyMultiEvent()
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o2.startModule(event)
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event.wait()
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# value has changed type, b2 and a1 are written
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expectedAfterStart.update(value=0, b2=True, a1=2.7)
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expectedAfterStart.update(value=0, b2=True, a1=True)
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# ramerk: a1=True: this behaviour is a Porgamming error
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assert updates.pop('o2') == expectedAfterStart
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assert o2._a1_written == 2.7
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assert o2._b2_written is True
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@ -218,13 +229,15 @@ def test_ModuleMagic():
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# check '$' in unit works properly
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assert o2.parameters['a1'].datatype.unit == 'mm/s'
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cfg = Newclass2.configurables
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assert set(cfg.keys()) == {'export', 'group', 'description', 'disable_value_range_check',
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assert set(cfg.keys()) == {
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'export', 'group', 'description', 'disable_value_range_check',
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'meaning', 'visibility', 'implementation', 'interface_classes', 'target', 'stop',
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'status', 'param1', 'param2', 'cmd', 'a2', 'pollinterval', 'b2', 'cmd2', 'value',
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'a1'}
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assert set(cfg['value'].keys()) == {'group', 'export', 'relative_resolution',
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'status', 'param1', 'param2', 'cmd', 'a2', 'pollinterval', 'slowinterval', 'b2',
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'cmd2', 'value', 'a1'}
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assert set(cfg['value'].keys()) == {
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'group', 'export', 'relative_resolution',
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'visibility', 'unit', 'default', 'datatype', 'fmtstr',
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'absolute_resolution', 'poll', 'max', 'min', 'readonly', 'constant',
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'absolute_resolution', 'max', 'min', 'readonly', 'constant',
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'description', 'needscfg'}
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# check on the level of classes
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@ -21,18 +21,20 @@
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# *****************************************************************************
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"""test poller."""
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import sys
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import threading
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import time
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from collections import OrderedDict
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import logging
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import pytest
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from secop.modules import Drivable
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from secop.poller import DYNAMIC, REGULAR, SLOW, Poller
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from secop.core import Module, Parameter, FloatRange, Readable, ReadHandler, nopoll
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from secop.lib.multievent import MultiEvent
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Status = Drivable.Status
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class Time:
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STARTTIME = 1000 # artificial time zero
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STARTTIME = 1000 # artificial time zero
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def __init__(self):
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self.reset()
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self.finish = float('inf')
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@ -61,190 +63,103 @@ class Time:
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self.seconds += seconds
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self.busytime += seconds
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artime = Time() # artificial test time
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@pytest.fixture(autouse=True)
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def patch_time(monkeypatch):
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monkeypatch.setattr(time, 'time', artime.time)
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class Event(threading.Event):
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def wait(self, timeout=None):
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artime.sleep(max(0, timeout))
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class Event:
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def __init__(self):
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self.flag = False
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class DispatcherStub:
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maxcycles = 10
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def wait(self, timeout):
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artime.sleep(max(0,timeout))
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def set(self):
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self.flag = True
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def clear(self):
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self.flag = False
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def is_set(self):
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return self.flag
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class Parameter:
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def __init__(self, name, readonly, poll, polltype, interval):
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self.poll = poll
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self.polltype = polltype # used for check only
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self.export = name
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self.readonly = readonly
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self.interval = interval
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self.timestamp = 0
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self.handler = None
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self.reset()
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def reset(self):
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self.cnt = 0
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self.span = 0
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self.maxspan = 0
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def rfunc(self):
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artime.busy(artime.commtime)
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def announce_update(self, modulename, pname, pobj):
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now = artime.time()
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self.span = now - self.timestamp
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self.maxspan = max(self.maxspan, self.span)
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self.timestamp = now
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self.cnt += 1
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return True
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def __repr__(self):
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return 'Parameter(%s)' % ", ".join("%s=%r" % item for item in self.__dict__.items())
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class Module:
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properties = {}
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pollerClass = Poller
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class io:
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name = 'common_io'
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def __init__(self, name, pollinterval=5, fastfactor=0.25, slowfactor=4, busy=False,
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counts=(), auto=None):
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'''create a dummy module
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nauto, ndynamic, nregular, nslow are the number of parameters of each polltype
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'''
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self.pollinterval = pollinterval
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self.fast_pollfactor = fastfactor
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self.slow_pollfactor = slowfactor
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self.parameters = OrderedDict()
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self.name = name
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self.is_busy = busy
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if auto is not None:
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self.pvalue = self.addPar('value', True, auto or DYNAMIC, DYNAMIC)
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# readonly = False should not matter:
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self.pstatus = self.addPar('status', False, auto or DYNAMIC, DYNAMIC)
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self.pregular = self.addPar('regular', True, auto or REGULAR, REGULAR)
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self.pslow = self.addPar('slow', False, auto or SLOW, SLOW)
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self.addPar('notpolled', True, False, 0)
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self.counts = 'auto'
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if hasattr(pobj, 'stat'):
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pobj.stat.append(now)
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else:
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ndynamic, nregular, nslow = counts
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for i in range(ndynamic):
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self.addPar('%s:d%d' % (name, i), True, DYNAMIC, DYNAMIC)
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for i in range(nregular):
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self.addPar('%s:r%d' % (name, i), True, REGULAR, REGULAR)
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for i in range(nslow):
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self.addPar('%s:s%d' % (name, i), False, SLOW, SLOW)
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self.counts = counts
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pobj.stat = [now]
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self.maxcycles -= 1
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if self.maxcycles <= 0:
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self.finish_event.set()
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sys.exit() # stop thread
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def addPar(self, name, readonly, poll, expected_polltype):
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# self.count[polltype] += 1
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expected_interval = self.pollinterval
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if expected_polltype == SLOW:
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expected_interval *= self.slow_pollfactor
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elif expected_polltype == DYNAMIC and self.is_busy:
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expected_interval *= self.fast_pollfactor
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pobj = Parameter(name, readonly, poll, expected_polltype, expected_interval)
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setattr(self, 'read_' + pobj.export, pobj.rfunc)
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self.parameters[pobj.export] = pobj
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return pobj
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def isBusy(self):
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return self.is_busy
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class ServerStub:
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def __init__(self):
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self.dispatcher = DispatcherStub()
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def pollOneParam(self, pname):
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getattr(self, 'read_' + pname)()
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def writeInitParams(self):
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pass
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class Base(Module):
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def __init__(self):
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srv = ServerStub()
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super().__init__('mod', logging.getLogger('dummy'), dict(description=''), srv)
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self.dispatcher = srv.dispatcher
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self.nextPollEvent = Event()
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def __repr__(self):
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rdict = self.__dict__.copy()
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rdict.pop('parameters')
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return 'Module(%r, counts=%r, f=%r, pollinterval=%g, is_busy=%r)' % (self.name,
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self.counts, (self.fast_pollfactor, self.slow_pollfactor, 1),
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self.pollinterval, self.is_busy)
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def run(self, maxcycles):
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self.dispatcher.maxcycles = maxcycles
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self.dispatcher.finish_event = threading.Event()
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self.startModule(MultiEvent())
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self.dispatcher.finish_event.wait(1)
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module_list = [
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[Module('x', 3.0, 0.125, 10, False, auto=True),
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Module('y', 3.0, 0.125, 10, False, auto=False)],
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[Module('a', 1.0, 0.25, 4, True, (5, 5, 10)),
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Module('b', 2.0, 0.25, 4, True, (5, 5, 50))],
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[Module('c', 1.0, 0.25, 4, False, (5, 0, 0))],
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[Module('d', 1.0, 0.25, 4, True, (0, 9, 0))],
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[Module('e', 1.0, 0.25, 4, True, (0, 0, 9))],
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[Module('f', 1.0, 0.25, 4, True, (0, 0, 0))],
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]
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@pytest.mark.parametrize('modules', module_list)
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def test_Poller(modules):
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# check for proper timing
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for overloaded in False, True:
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artime.reset()
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count = {DYNAMIC: 0, REGULAR: 0, SLOW: 0}
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maxspan = {DYNAMIC: 0, REGULAR: 0, SLOW: 0}
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pollTable = dict()
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for module in modules:
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Poller.add_to_table(pollTable, module)
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for pobj in module.parameters.values():
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if pobj.poll:
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maxspan[pobj.polltype] = max(maxspan[pobj.polltype], pobj.interval)
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count[pobj.polltype] += 1
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pobj.reset()
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assert len(pollTable) == 1
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poller = pollTable[(Poller, 'common_io')]
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artime.stop = poller.stop
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poller._event = Event() # patch Event.wait
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class Mod1(Base, Readable):
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param1 = Parameter('', FloatRange())
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param2 = Parameter('', FloatRange())
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param3 = Parameter('', FloatRange())
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param4 = Parameter('', FloatRange())
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assert (sum(count.values()) > 0) == bool(poller)
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@ReadHandler(('param1', 'param2', 'param3'))
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def read_param(self, name):
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artime.sleep(1.0)
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return 0
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def started_callback(modules=modules):
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for module in modules:
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for pobj in module.parameters.values():
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assert pobj.cnt == bool(pobj.poll) # all parameters have to be polled once
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pobj.reset() # set maxspan and cnt to 0
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@nopoll
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def read_param4(self):
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return 0
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if overloaded:
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# overloaded scenario
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artime.commtime = 1.0
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ncycles = 10
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if count[SLOW] > 0:
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cycletime = (count[REGULAR] + 1) * count[SLOW] * 2
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else:
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cycletime = max(count[REGULAR], count[DYNAMIC]) * 2
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artime.reset(cycletime * ncycles * 1.01) # poller will quit given time
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poller.run(started_callback)
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total = artime.time() - artime.STARTTIME
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for module in modules:
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for pobj in module.parameters.values():
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if pobj.poll:
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# average_span = total / (pobj.cnt + 1)
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assert total / (pobj.cnt + 1) <= max(cycletime, pobj.interval * 1.1)
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else:
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# normal scenario
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artime.commtime = 0.001
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artime.reset(max(maxspan.values()) * 5) # poller will quit given time
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poller.run(started_callback)
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total = artime.time() - artime.STARTTIME
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for module in modules:
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for pobj in module.parameters.values():
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if pobj.poll:
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assert pobj.cnt > 0
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assert pobj.maxspan <= maxspan[pobj.polltype] * 1.1
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assert (pobj.cnt + 1) * pobj.interval >= total * 0.99
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assert abs(pobj.span - pobj.interval) < 0.01
|
||||
pobj.reset()
|
||||
def read_status(self):
|
||||
artime.sleep(1.0)
|
||||
return 0
|
||||
|
||||
def read_value(self):
|
||||
artime.sleep(1.0)
|
||||
return 0
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
'ncycles, pollinterval, slowinterval, mspan, pspan',
|
||||
[ # normal case: 5+-1 15+-1
|
||||
( 60, 5, 15, (4, 6), (14, 16)),
|
||||
# pollinterval faster then reading: mspan max 3 s (polls of value, status and ONE other parameter)
|
||||
( 60, 1, 5, (1, 3), (5, 16)),
|
||||
])
|
||||
def test_poll(ncycles, pollinterval, slowinterval, mspan, pspan, monkeypatch):
|
||||
monkeypatch.setattr(time, 'time', artime.time)
|
||||
artime.reset()
|
||||
m = Mod1()
|
||||
m.pollinterval = pollinterval
|
||||
m.slowInterval = slowinterval
|
||||
m.run(ncycles)
|
||||
assert not hasattr(m.parameters['param4'], 'stat')
|
||||
for pname in ['value', 'status']:
|
||||
pobj = m.parameters[pname]
|
||||
lowcnt = 0
|
||||
for t1, t2 in zip(pobj.stat[1:], pobj.stat[2:-1]):
|
||||
if t2 - t1 < mspan[0]:
|
||||
print(t2 - t1)
|
||||
lowcnt += 1
|
||||
assert t2 - t1 <= mspan[1]
|
||||
assert lowcnt <= 1
|
||||
for pname in ['param1', 'param2', 'param3']:
|
||||
pobj = m.parameters[pname]
|
||||
lowcnt = 0
|
||||
for t1, t2 in zip(pobj.stat[1:], pobj.stat[2:-1]):
|
||||
if t2 - t1 < pspan[0]:
|
||||
print(pname, t2 - t1)
|
||||
lowcnt += 1
|
||||
assert t2 - t1 <= pspan[1]
|
||||
assert lowcnt <= 1
|
||||
|
||||
@ -26,6 +26,7 @@ import pytest
|
||||
from secop.datatypes import FloatRange, IntRange, StringType, ValueType
|
||||
from secop.errors import BadValueError, ConfigError, ProgrammingError
|
||||
from secop.properties import HasProperties, Property
|
||||
from secop.core import Parameter
|
||||
|
||||
|
||||
def Prop(*args, name=None, **kwds):
|
||||
@ -149,17 +150,25 @@ def test_Property_override():
|
||||
assert o2.a == 3
|
||||
|
||||
with pytest.raises(ProgrammingError) as e:
|
||||
class cx(c): # pylint: disable=unused-variable
|
||||
class cx(c): # pylint: disable=unused-variable
|
||||
def a(self):
|
||||
pass
|
||||
assert 'collides with' in str(e.value)
|
||||
|
||||
with pytest.raises(ProgrammingError) as e:
|
||||
class cz(c): # pylint: disable=unused-variable
|
||||
class cy(c): # pylint: disable=unused-variable
|
||||
a = 's'
|
||||
|
||||
assert 'can not set' in str(e.value)
|
||||
|
||||
with pytest.raises(ProgrammingError) as e:
|
||||
class cz(c): # pylint: disable=unused-variable
|
||||
a = 's'
|
||||
|
||||
class cp(c): # pylint: disable=unused-variable
|
||||
# overriding a Property with a Parameter is allowed
|
||||
a = Parameter('x', IntRange())
|
||||
|
||||
|
||||
def test_Properties_mro():
|
||||
class Base(HasProperties):
|
||||
|
||||
Reference in New Issue
Block a user