Vehicle Researcher
6adb63b915
date: 2026-06-04T09:49:56 master commit: c0ab3550eca2e9daf197c46b7e4b24aa9637cf2e
62 lines
1.2 KiB
C++
62 lines
1.2 KiB
C++
#pragma once
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#include <condition_variable>
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <thread>
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struct GpsTrace;
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struct GeoBounds {
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double south = 0.0;
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double west = 0.0;
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double north = 0.0;
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double east = 0.0;
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bool valid() const {
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return south < north && west < east;
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}
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};
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struct RouteBasemap;
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struct MapCacheStats {
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uint64_t bytes = 0;
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size_t files = 0;
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};
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class MapDataManager {
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public:
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MapDataManager();
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~MapDataManager();
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MapDataManager(const MapDataManager &) = delete;
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MapDataManager &operator=(const MapDataManager &) = delete;
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void pump();
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void ensureTrace(const GpsTrace &trace);
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void clearCache();
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bool loading() const;
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const RouteBasemap *current() const;
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MapCacheStats cacheStats() const;
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private:
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struct Request {
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std::string key;
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GeoBounds bounds;
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std::string query;
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};
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void run();
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mutable std::mutex mutex_;
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std::condition_variable cv_;
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bool stopping_ = false;
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std::unique_ptr<Request> pending_;
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std::unique_ptr<Request> active_;
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std::unique_ptr<RouteBasemap> completed_;
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std::unique_ptr<RouteBasemap> current_;
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std::thread worker_;
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};
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