threading_config.h

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#pragma once
 
#include <cstddef>
 
namespace contur {

    struct HostThreadingConfig
    {
        std::size_t hostThreadCount = 1;

        bool deterministicMode = true;

        bool workStealingEnabled = false;

        [[nodiscard]] constexpr bool isValid() const noexcept
        {
            return hostThreadCount >= 1U;
        }

        [[nodiscard]] constexpr bool isSingleThreaded() const noexcept
        {
            return hostThreadCount == 1U;
        }

        [[nodiscard]] constexpr HostThreadingConfig normalized() const noexcept
        {
            HostThreadingConfig normalizedConfig = *this;
 
            if (normalizedConfig.hostThreadCount == 0U)
            {
                normalizedConfig.hostThreadCount = 1U;
            }
 
            if (normalizedConfig.isSingleThreaded())
            {
                normalizedConfig.workStealingEnabled = false;
            }
 
            return normalizedConfig;
        }

        constexpr void normalize() noexcept
        {
            *this = normalized();
        }
    };
 
} // namespace contur