'Done' was introduced in order to suppress unneccessary
duplicate updates. However, since super calls on access methods are
allowed, it is not nice when such a method returns Done, as this
is not automagically replaced by the current parameter value.
As a consequence:
- using Done is discouraged, but not (yet) removed in all code
- the 'omit_unchanged_within' property is moved from Module to an
internal Parameter property 'update_unchanged'
- its default is moved from a SEC node property to generalConfig
- the 'update_unchanged' parameter property may be set to
'never' for parameters where duplicate updates make no sense
- this property might be set to 'always', for measurements, where
even unchanged values taken from HW should be transmitted
Change-Id: I2847c983ca09c2c4098e402edd08d0c96c3913f4
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/30672
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
use mro for status code inheritance
- as a consequence, the decorator class 'StatusCode' is now a
decorator function 'status_code'. snake case is anyway more
common for decorators.
- adapt tests
+ fix an error message
Change-Id: Ib409b963c51e0fe807397ff1d73d77d0147b8580
- Change Configuration format to be python-based.
- move config logic to frappy/config.py
- Add first py-config: cryo_cfg.py
- Adapt test to new expected config format
Change-Id: Iaec484e0e1e21ebbb1e5c74b53be6231329ddf71
With the current implementation, we run into a deadlock with the lock
from the state machine interfering with the accessLock on the module.
We can not wait for the state machine to finish while having the
accessLock locked by write_target. As a consequence, when restarting
the state machine we should not wait, but remember the state function
to call and postpone the restart after the cleanup has finished.
For this, we want to know the status before calling the state function.
- create HasState mixin, using doPoll for driving the machine
- StatusCode decorator for assigning a status to a state function
- remove the state machines 'threaded' option
- 'Retry' is now a unique value instead of a class. The retry period
is determined by the (fast) poll interval.
- return 'Finish' instead of None for finishing the machine. returning
None for state function is now an error, as this might happen
easily inadvertently.
Change-Id: Icb31367442f10e98be69af3e05a84f12ce5cc966
This valve needs 8 turns to open. As the encoder forgets
the number if turns on power cycle, a home switch is
mounte, which engages during the last turn when closing.
The final close position is determined by closing the valve
with a defined motor current/torque.
+ fix an issue in StateMachine.start: the first cycle
must be called after the new state is assigned
Change-Id: I34cd05d10d97b043f9e3126310943b74ee727382
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/28030
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
- fix: calling state.start(<new state>) on restart must ensure
that the function <new state> is called before state.start()
returns.
- modify slighly behaviour of cleanup function
Change-Id: I483a3aefa6af4712b3cf13f62c86d4c06edd1d8d
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/28020
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
a quite simple, but powerful state machine
There is not need to subclass StateMachine, but use an instance
of it. The code typically lives on methods of an other class.
Features:
- store any variables (except already defined attributes) on the state
- actions handle the conditions to stay or initiate a transition
by calling the state machines goto method
- a state machine might run endlessly or finish in a None action.
- it may be started or restarted
- a cleanup function for handling exceptions and for stop or restart
- support for time dependent features
Change-Id: I86b86ed1f25d04e305237edb99206912b068aedf
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/27593
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
