NetworkValidatedLedgersInterface.hpp

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#pragma once
 
#include <boost/signals2/connection.hpp>
#include <boost/signals2/signal.hpp>
#include <boost/signals2/variadic_signal.hpp>
 
#include <cstdint>
#include <optional>
 
namespace etl {

class NetworkValidatedLedgersInterface {
public:
    using SignalType = boost::signals2::signal<void(uint32_t)>;
 
    virtual ~NetworkValidatedLedgersInterface() = default;

    virtual void
    push(uint32_t idx) = 0;

    [[nodiscard]] virtual std::optional<uint32_t>
    getMostRecent() = 0;

    virtual bool
    waitUntilValidatedByNetwork(uint32_t sequence, std::optional<uint32_t> maxWaitMs = {}) = 0;

    [[nodiscard]] virtual boost::signals2::scoped_connection
    subscribe(SignalType::slot_type const& subscriber) = 0;
};
 
}  // namespace etl