Determines whether a reactor is persistent
(vlr-pers-p reactor)
The specified reactor object, if it is persistent; nil, if the reactor is transient.
_$ (vlr-pers circleReactor)
#<VLR-Object-Reactor>
Verify that a reactor is persistent:
_$ (vlr-pers-p circleReactor)
#<VLR-Object-Reactor>
Change the persistent reactor to transient:
_$ (vlr-pers-release circleReactor)
#<VLR-Object-Reactor>
Verify that the reactor is no longer persistent:
_$ (vlr-pers-p circleReactor)
nil