BunchStateHandler.h

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#ifndef BUNCH_STATE_HANDLER_H
#define BUNCH_STATE_HANDLER_H
 
#include <memory>
#include <vector>
 
class BunchStateHandler {
public:
    struct ContainerState {
        bool unitlessPositions = false;
        bool momentsDirty      = true;
 
        void setUnitlessPositions(bool v);
        void markMomentsDirty();
        void markMomentsClean();
    };
 
    BunchStateHandler() = default;
 
    // -- per-container registration ---------------------------------------
 
    std::shared_ptr<ContainerState> registerContainer();
 
    // -- bunch-wide flags --------------------------------------------------
 
    bool isFirstRepartition() const { return firstRepartition_m; }
    bool& isFirstRepartitionRef() { return firstRepartition_m; }
    void setFirstRepartition(bool v);
 
    // -- emission liveness -------------------------------------------------
    // TBD: not wired up yet. Re-introduce a bunch-wide bool (plus impl in .cpp
    // and a unit test) once an emitting distribution actually needs it.
    // bool isEmittingNow() const;
    // void setEmittingNow(bool v);
 
private:
    // Weak refs to every slot handed out by registerContainer(). Used only by
    // handler-internal operations that iterate over all containers; pruned
    // lazily on iteration. Never exposed to callers.
    std::vector<std::weak_ptr<ContainerState>> registered_m;
 
    bool firstRepartition_m = true;
};
 
#endif