GlobalCliComm.hh

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#ifndef GLOBALCLICOMM_HH
#define GLOBALCLICOMM_HH

#include "CliComm.hh"
#include "hash_map.hh"
#include "xxhash.hh"
#include <memory>
#include <mutex>
#include <vector>

namespace openmsx {

class CliListener;

class GlobalCliComm final : public CliComm
{
public:
        GlobalCliComm(const GlobalCliComm&) = delete;
        GlobalCliComm& operator=(const GlobalCliComm&) = delete;

        GlobalCliComm() = default;
        ~GlobalCliComm();

        void addListener(std::unique_ptr<CliListener> listener);
        std::unique_ptr<CliListener> removeListener(CliListener& listener);

        // Before this method has been called commands send over external
        // connections are not yet processed (but they keep pending).
        void setAllowExternalCommands();

        // CliComm
        void log(LogLevel level, string_view message) override;
        void update(UpdateType type, string_view name,
                    string_view value) override;

private:
        void updateHelper(UpdateType type, string_view machine,
                          string_view name, string_view value);

        hash_map<std::string, std::string, XXHasher> prevValues[NUM_UPDATES];

        std::vector<std::unique_ptr<CliListener>> listeners; // unordered
        std::mutex mutex; // lock access to listeners member
        bool delivering = false;
        bool allowExternalCommands = false;

        friend class MSXCliComm;
};

} // namespace openmsx

#endif