Re: Background threads and maintenance applications - how to terminate them safely?
Re: Background threads and maintenance applications - how to terminate them safely?
- Subject: Re: Background threads and maintenance applications - how to terminate them safely?
- From: Miguel Arroz <email@hidden>
- Date: Tue, 23 Oct 2007 02:16:21 +0100
Hi!
So, the ideia is to override the isTerminating method, and only
return true is things are safe to terminate?
WOLongResponse won't solve my problem, because the user will
introduce the data, get the "OK" page, close the browser and go away.
I don't want him to be waiting, because, unless the whole server goes
down, I'm sure, at that point, that all the data is valid and can be
saved with no problems.
Yours
Miguel Arroz
On 2007/10/23, at 01:08, Lachlan Deck wrote:
Hi there,
On 23/10/2007, at 9:30 AM, Miguel Arroz wrote:
My problem is: I have two types of situations that worry me:
1) A maintenance app that is running on the server, with no user
interaction. It just seats there, in an infinite loop, doing stuff
that need to be done.
See below.
2) A normal app that sometimes launches a background thread to
process some stuff. The ideia is that the user submits data, but
the data processing may take some time (30 seconds, for example).
What I want is to send the "OK, great, it's done" page to the
user, terminate the session, and process his data in the
background before saving it.
WOLongResponse + NSNotificationCenter.
My question is: how can I terminate this apps safely? When we are
talking about sessions, we have the "Refuse new sessions" option,
that will hold the app until no more active sessions exist. This
will terminate apps safely, without discarding data. How to do
this with background threads? How can I tell WO "do not terminate
the app until this thread is over or this method is done"?
See WOApplication.terminate/isTerminating.
with regards,
--
Lachlan Deck
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Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
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