Re: [pysnmp-users] cmdgen and SNMPv3

[Vincent B. <be...@lu...>]

 ❦ 15 novembre 2015 17:30 +0100, Vincent Bernat <be...@lu...> :

> Since many stuff doesn't seem to be thread safe and that SnmpEngine is
> only parsing MIB stuff to get constant data, this part should be
> extracted to do it once.

All the more than starting with PySNMP 4.3, MIBs are parsed/compiled
with PySMI. I can't say for sure, but is it safe to compile a MIB from
different threads? It seems that ply is not thread-safe. It is said:

╭─────┤ https://github.com/dabeaz/ply/blob/master/ply/yacc.py#L40-L45 ├─────
│The current implementation is only somewhat object-oriented. The
│LR parser itself is defined in terms of an object (which allows multiple
│parsers to co-exist).  However, most of the variables used during table
│construction are defined in terms of global variables.  Users shouldn't
│notice unless they are trying to define multiple parsers at the same
│time using threads (in which case they should have their head
│examined).
╰─────
-- 
You may my glories and my state dispose,
But not my griefs; still am I king of those.
		-- William Shakespeare, "Richard II"