explicit type()

in include/unifex/win32/windows_thread_pool.hpp [472:499]

• 23 lines of code
• 6 McCabe index (conditional complexity)

    explicit type(windows_thread_pool& pool, bool isStopPossible) {
        ::InitializeThreadpoolEnvironment(&environ_);
        ::SetThreadpoolCallbackPool(&environ_, pool.threadPool_);

        // Give the optimiser a hand for cases where the parameter
        // can never be true.
        if constexpr (is_stop_never_possible_v<StopToken>) {
            isStopPossible = false;
        }

        timer_ = ::CreateThreadpoolTimer(
            isStopPossible ? &stoppable_timer_callback : &timer_callback, static_cast<void*>(this), &environ_);
        if (timer_ == nullptr) {
            DWORD errorCode = ::GetLastError();
            ::DestroyThreadpoolEnvironment(&environ_);
            throw_(
                std::system_error{static_cast<int>(errorCode), std::system_category(), "CreateThreadpoolTimer()"});
        }

        if (isStopPossible) {
            state_ = new (std::nothrow) std::atomic<std::uint32_t>{not_started};
            if (state_ == nullptr) {
                ::CloseThreadpoolTimer(timer_);
                ::DestroyThreadpoolEnvironment(&environ_);
                throw_(std::bad_alloc{});
            }
        }
    }