Experimental Physics and
Industrial Control System

Ralph Lange <[email protected]> · Mon, 19 Jan 2004 15:02:28 +0100

>>>>> "Marty" == Marty Kraimer <[email protected]> writes:

  >> Can anybody write couple words about IOC deinitialization? Has
  >> Epics similar hook here?

  > Sorry but iocCore is currently written to run forever. There is no deinitialization.

Some target systems (e.g. vxWorks) offer functions that you can hook
into for a system shutdown and/or reboot. (E.g. Some VME cards that are
generating interrupts with a high frequency must be shut up for a reboot
else vxWorks will get into a "panic: workQ overflow" and never finish
booting.)

But you have to keep in mind that if you are using these features your
code will not be portable. And: the hooks might not be called under any
possible reboot condition, you might not have control over the order in
which hooks are called, etc. (This depends on your target system.)

Hope this helps,
Ralph

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System