Alarm signal interrupting tpsvrdone function

Question

I have a server that contains no services. In tpsvrinit, I set an alarm and exit.
When the alarm signal arrives, the server executes a function and resets the
alarm. This way I can have a function that is called every 5 seconds in an executable
process that is administered by tuxedo, which is perfect. The only trouble I
can see is when I shutdown the server. In tpsvrdone, the alarm signal can arrive
and cause the tuxedo server to execute the alarm handler. tpsvrdone is never
re-executed and the server doesn't shutdown. I figured that I could cancel the
alarm as the very first thing in tpsvrdone, but even then, that doesn't guarentee
that the alarm signal won't arrive just before I do this. Is there anyway I can
tell in my server wether the server is being shutdown (ie. through the MIB) and
then from my alarm handler, check this and then complete the shutdown of the server?

Answer 1

If you return properly from the alarm handler, I don't know why tpsvrdone wouldn't
continue where it left off.
But another way would be for you to have one service in that server, which you
could call before you shut it down so that it would cancel the alarm. In fact, the
server could just tpreturn(TPEXIT) at that point. You would be replacing tpsvrdone
with the service function, and calling a ud script instead of tmshutdown.
     Scott Orshan
Pants wrote:
I have a server that contains no services. In tpsvrinit, I set an alarm and exit.
When the alarm signal arrives, the server executes a function and resets the
alarm. This way I can have a function that is called every 5 seconds in an executable
process that is administered by tuxedo, which is perfect. The only trouble I
can see is when I shutdown the server. In tpsvrdone, the alarm signal can arrive
and cause the tuxedo server to execute the alarm handler. tpsvrdone is never
re-executed and the server doesn't shutdown. I figured that I could cancel the
alarm as the very first thing in tpsvrdone, but even then, that doesn't guarentee
that the alarm signal won't arrive just before I do this. Is there anyway I can
tell in my server wether the server is being shutdown (ie. through the MIB) and
then from my alarm handler, check this and then complete the shutdown of the server?