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Large update for the SumStats framework.

Browse source 
- On-demand access to sumstats results through "return from"
   functions named SumStats::request and Sumstats::request_key.
   Both functions are tested in standalone and clustered modes.

 - $name field has returned to SumStats which simplifies cluster
   code and makes the on-demand access stuff possible.

 - Clustered results can only be collected for 1 minute from their
   time of creation now instead of time of last read.

 - Thresholds use doubles instead of counts everywhere now.

 - Calculation dependency resolution occurs at start up time now
   instead of doing it at observation time which provide a minor
   cpu performance improvement.  A new plugin registration mechanism
   was created to support this change.

 - AppStats now has a minimal doc string and is broken into hook-based
   plugins.

 - AppStats and traceroute detection added to local.bro
This commit is contained in:
Seth Hall 2013-05-21 15:52:59 -04:00
parent 7d7d30e1f7
commit bec965b66f
34 changed files with 687 additions and 277 deletions
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15
scripts/base/frameworks/sumstats/plugins/std-dev.bro
View file

@ -1,5 +1,5 @@
@load ./variance
@load base/frameworks/sumstats
@load ../main
module SumStats;
@ -21,11 +21,18 @@ function calc_std_dev(rv: ResultVal)
rv$std_dev = sqrt(rv$variance);
}
# This depends on the variance plugin which uses priority -5
hook observe_hook(r: Reducer, val: double, obs: Observation, rv: ResultVal) &priority=-10
hook std_dev_hook(r: Reducer, val: double, obs: Observation, rv: ResultVal)
{
if ( STD_DEV in r$apply )
calc_std_dev(rv);
}
hook register_observe_plugins() &priority=-10
{
register_observe_plugin(STD_DEV, function(r: Reducer, val: double, obs: Observation, rv: ResultVal)
{
calc_std_dev(rv);
});
add_observe_plugin_dependency(STD_DEV, VARIANCE);
}
hook compose_resultvals_hook(result: ResultVal, rv1: ResultVal, rv2: ResultVal) &priority=-10