Export some metrics from x264 speed control.

[nageru] / metrics.h

diff --git a/metrics.h b/metrics.h
index 519cb80f694c03756aaa34d5d809eaa1c569a722..2a19e259cc32bf4df11c1eb779d6339b16382fd9 100644 (file)
--- a/metrics.h
+++ b/metrics.h
@@ -32,6 +32,9 @@ public:
        void add(const std::string &name, const std::vector<std::pair<std::string, std::string>> &labels, std::atomic<int64_t> *location, Type type = TYPE_COUNTER);
        void add(const std::string &name, const std::vector<std::pair<std::string, std::string>> &labels, std::atomic<double> *location, Type type = TYPE_COUNTER);
 
+       // Only integer histogram, ie. keys are 0..(N-1).
+       void add_histogram(const std::string &name, const std::vector<std::pair<std::string, std::string>> &labels, std::atomic<int64_t> *location, size_t num_elements);
+
        std::string serialize() const;
 
 private:
@@ -50,9 +53,18 @@ private:
                };
        };
 
+       // TODO: This needs to be more general.
+       struct Histogram {
+               std::string name;
+               std::vector<std::pair<std::string, std::string>> labels;
+               std::atomic<int64_t> *location_int64;  // First bucket.
+               size_t num_elements;
+       };
+
        mutable std::mutex mu;
        std::map<std::string, Type> types;
        std::vector<Metric> metrics;
+       std::vector<Histogram> histograms;
 };
 
 extern Metrics global_metrics;