1 files changed, 100 insertions, 0 deletions
diff --git a/ml/Host.h b/ml/Host.h
new file mode 100644
index 0000000..52a0cd0
--- /dev/null
+++ b/ml/Host.h
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef ML_HOST_H
+#define ML_HOST_H
+
+#include "Config.h"
+#include "Dimension.h"
+
+#include "ml-private.h"
+#include "json/single_include/nlohmann/json.hpp"
+
+namespace ml {
+
+class RrdHost {
+public:
+    RrdHost(RRDHOST *RH) : RH(RH) {};
+
+    RRDHOST *getRH() { return RH; }
+
+    unsigned updateEvery() { return RH->rrd_update_every; }
+
+    std::string getUUID() {
+        char S[UUID_STR_LEN];
+        uuid_unparse_lower(RH->host_uuid, S);
+        return S;
+    }
+
+    void addDimension(Dimension *D);
+    void removeDimension(Dimension *D);
+
+    void getConfigAsJson(nlohmann::json &Json) const;
+
+    virtual ~RrdHost() {};
+
+protected:
+    RRDHOST *RH;
+
+    // Protect dimension and lock maps
+    std::mutex Mutex;
+
+    std::unordered_map<RRDDIM *, Dimension *> DimensionsMap;
+    std::unordered_map<Dimension *, std::mutex> LocksMap;
+};
+
+class TrainableHost : public RrdHost {
+public:
+    TrainableHost(RRDHOST *RH) : RrdHost(RH) {}
+
+    void train();
+
+    void updateResourceUsage() {
+        std::lock_guard<std::mutex> Lock(ResourceUsageMutex);
+        getrusage(RUSAGE_THREAD, &ResourceUsage);
+    }
+
+    void getResourceUsage(struct rusage *RU) {
+        std::lock_guard<std::mutex> Lock(ResourceUsageMutex);
+        memcpy(RU, &ResourceUsage, sizeof(struct rusage));
+    }
+
+    void getModelsAsJson(nlohmann::json &Json);
+
+private:
+    std::pair<Dimension *, Duration<double>> findDimensionToTrain(const TimePoint &NowTP);
+    void trainDimension(Dimension *D, const TimePoint &NowTP);
+
+    struct rusage ResourceUsage{};
+    std::mutex ResourceUsageMutex;
+};
+
+class DetectableHost : public TrainableHost {
+public:
+    DetectableHost(RRDHOST *RH) : TrainableHost(RH) {}
+
+    void startAnomalyDetectionThreads();
+    void stopAnomalyDetectionThreads();
+
+    void getDetectionInfoAsJson(nlohmann::json &Json) const;
+
+private:
+    void detect();
+    void detectOnce();
+
+private:
+    std::thread TrainingThread;
+    std::thread DetectionThread;
+
+    CalculatedNumber HostAnomalyRate{0.0};
+
+    size_t NumAnomalousDimensions{0};
+    size_t NumNormalDimensions{0};
+    size_t NumTrainedDimensions{0};
+    size_t NumActiveDimensions{0};
+};
+
+using Host = DetectableHost;
+
+} // namespace ml
+
+#endif /* ML_HOST_H */