windows-user-space-emulator/src/fuzzing-engine/fuzzer.hpp

#pragma once
#include <span>
#include <memory>
#include <thread>
#include <cstdint>
#include <functional>

namespace fuzzer
{
    using coverage_functor = void(uint64_t address);

    enum class execution_result
    {
        success,
        error,
    };

    struct executer
    {
        virtual ~executer() = default;

        virtual execution_result execute(std::span<const uint8_t> data, const std::function<coverage_functor>& coverage_handler) = 0;
    };

    struct fuzzing_handler
    {
        virtual ~fuzzing_handler() = default;

        virtual std::unique_ptr<executer> make_executer() = 0;

        virtual bool stop()
        {
            return false;
        }
    };

    void run(fuzzing_handler& handler, size_t concurrency = std::thread::hardware_concurrency());
}