Measurement framework is ready for testing.

- New, expanded API.
 - Calculations moved into plugins.
 - Scripts using measurement framework ported.
 - Updated the script-land queue implementation to make it more generic.
 -

scripts/base/frameworks/measurement/plugins/sample.bro

@@ -1,3 +1,4 @@
+@load base/utils/queue
 
 module Measurement;
 
@@ -29,7 +30,10 @@ hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal
 		{
 		if ( ! rv?$sample_queue )
 			rv$sample_queue = Queue::init([$max_len=r$samples]);
-		Queue::push(rv$sample_queue, data$str);
+		if ( ! rv?$samples )
+			rv$samples = vector();
+		Queue::put(rv$sample_queue, data);
+		Queue::get_vector(rv$sample_queue, rv$samples);
 		}
 	}
 

scripts/base/frameworks/measurement/plugins/sum.bro

@@ -27,6 +27,12 @@ function sum_threshold(data_id: string): threshold_function
 		};
 	}
 
+hook init_resultval_hook(r: Reducer, rv: ResultVal)
+	{
+	if ( SUM in r$apply && ! rv?$sum )
+		rv$sum = 0;
+	}
+
 hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
 	{
 	if ( SUM in r$apply )

scripts/base/frameworks/measurement/plugins/unique.bro

@@ -10,7 +10,7 @@ export {
 	redef record ResultVal += {
 		## If cardinality is being tracked, the number of unique
 		## items is tracked here.
-		unique: count &optional;
+		unique: count &default=0;
 	};
 }