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45 lines
No EOL
1.2 KiB
Text
45 lines
No EOL
1.2 KiB
Text
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module Measurement;
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export {
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redef record Reducer += {
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## A number of sample DataPoints to collect.
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samples: count &default=0;
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};
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redef record Result += {
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## A sample of something being measured. This is helpful in
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## some cases for collecting information to do further detection
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## or better logging for forensic purposes.
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samples: vector of Measurement::DataPoint &optional;
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};
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}
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redef record Result += {
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# Internal use only. This is the queue where samples
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# are maintained since the queue is self managing for
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# the number of samples requested.
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sample_queue: Queue::Queue &optional;
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};
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hook add_to_reducer(r: Reducer, val: double, data: DataPoint, result: Result)
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{
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if ( r$samples > 0 )
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{
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if ( ! result?$sample_queue )
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result$sample_queue = Queue::init([$max_len=r$samples]);
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Queue::push(result$sample_queue, data$str);
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}
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}
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hook compose_resultvals_hook(result: Result, rv1: Result, rv2: Result)
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{
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# Merge $sample_queue
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if ( rv1?$sample_queue && rv2?$sample_queue )
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result$sample_queue = Queue::merge(rv1$sample_queue, rv2$sample_queue);
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else if ( rv1?$sample_queue )
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result$sample_queue = rv1$sample_queue;
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else if ( rv2?$sample_queue )
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result$sample_queue = rv2$sample_queue;
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} |