69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
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//
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// Created by matrixai on 4/2/24.
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//
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#ifndef TRAIN_RFID_LINUX_UTILS_H
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#define TRAIN_RFID_LINUX_UTILS_H
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#include <mutex>
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#include <sstream>
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#include <fstream>
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#include <dirent.h>
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <set>
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#include <map>
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#include <memory>
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#include <cstring>
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namespace ai_matrix
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{
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class Utils final
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{
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public:
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static Utils *getins();
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//计算均值
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float getMean(const std::vector<float> &data);
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//计算最大值
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float getMax(const std::vector<float> &data);
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//计算最小值
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float getMin(const std::vector<float> &data);
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//计算中位数
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float getMedian(const std::vector<float> &data);
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bool contains_vec(const std::vector<std::string> &vec, std::string x);
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private:
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Utils() = default;
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Utils(const Utils &) = delete;
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Utils(Utils &&) = delete;
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Utils &operator=(const Utils &) = delete;
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Utils &operator=(Utils &&) = delete;
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~Utils() = default;
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//定义一个嵌套类，负责释放内存，操作系统自动完成，不用担心内存泄露
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class GarbageCollector
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{
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public:
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~GarbageCollector()
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{
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if (Utils::ins)
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{
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delete Utils::ins;
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Utils::ins = nullptr;
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}
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}
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};
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static GarbageCollector gc;
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static Utils *ins;
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static std::mutex mx; //锁，保证线程安全
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};
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}
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#endif //TRAIN_RFID_LINUX_UTILS_H
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