wlan-cloud-analytics/src/dict_ssid.h

#include <map>
#include <mutex>
#include <string>

namespace OpenWifi {

	class SSID_DICT {
	  public:
		SSID_DICT() = default;

		static auto instance() {
			static auto instance_ = new SSID_DICT;
			return instance_;
		}

		inline uint64_t Add(const std::string &ssid) {
			std::lock_guard G(Mutex_);
			auto it = Dict_.find(ssid);
			if (it == end(Dict_)) {
				auto Id = Index_++;
				Dict_[ssid] = Id;
				return Id;
			}
			return it->second;
		}

		inline void Remove(const std::string &ssid) {
			std::lock_guard G(Mutex_);
			Dict_.erase(ssid);
		}

		inline std::string Get(uint64_t ssid_id) {
			std::lock_guard G(Mutex_);
			for (const auto &[name, id] : Dict_) {
				if (ssid_id == id)
					return name;
			}
			return "";
		}

	  private:
		std::recursive_mutex Mutex_;
		uint64_t Index_ = 1;
		std::map<std::string, uint64_t> Dict_;
	};

	inline auto SSID_DICT() { return SSID_DICT::instance(); }
} // namespace OpenWifi