I have problem understating what are rules for using elxir in
multithreaded
applications.
In
http://elixir.ematia.de/trac/wiki/TutorialDivingIn#a8.Moreonsessions
we found:
"Elixir provides a default global contextual (thread-local) session
for you to
use,"
Does it mean every thread gets thread local session on which it can
safely
operate ?
Yes.
My scenario is to use threads to not block main qt app loop for long
time DB
operations. I wish I have one default session for use in qt thread
(fast
access, GUI updates etc) and few session backgrounds.
1. Can I use same session for all threads ?
Yes, but it will be distinct for all threads. Not one for main & one
for *all* workers.
2. If not can I pass elxir Entities abong threads ? Should I
"copy"/"assign"
them to thread local session ?
Entities are bound to a session. So by definition of a per-thread-
session, you can't.
I'm not 100% sure, but I'd say something like this should work:
entity = from_another_thread()
entity = type(entity).get(entity.id)
Alternatively, you can of course pass class & id as tuples directly &
use these to construct the entities in a different thread.
Diez
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