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- #ifndef BACKEND_H
- #define BACKEND_H
- #include "Event.hh"
- #include "Watcher.hh"
- #include "Signal.hh"
- #include <thread>
- class Backend {
- public:
- virtual ~Backend();
- void run();
- void notifyStarted();
- virtual void start();
- virtual void writeSnapshot(WatcherRef watcher, std::string *snapshotPath) = 0;
- virtual void getEventsSince(WatcherRef watcher, std::string *snapshotPath) = 0;
- virtual void subscribe(WatcherRef watcher) = 0;
- virtual void unsubscribe(WatcherRef watcher) = 0;
- static std::shared_ptr<Backend> getShared(std::string backend);
- void watch(WatcherRef watcher);
- void unwatch(WatcherRef watcher);
- void unref();
- void handleWatcherError(WatcherError &err);
- std::mutex mMutex;
- std::thread mThread;
- private:
- std::unordered_set<WatcherRef> mSubscriptions;
- Signal mStartedSignal;
- void handleError(std::exception &err);
- };
- #endif
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