STEllAR-GROUP / hpx / #882

//  Copyright (c) 2007-2025 Hartmut Kaiser

//  Copyright (c)      2011 Bryce Lelbach

//  Copyright (c)      2020 Nikunj Gupta

//

//  SPDX-License-Identifier: BSL-1.0

//  Distributed under the Boost Software License, Version 1.0. (See accompanying

//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include <hpx/assert.hpp>

#include <hpx/modules/errors.hpp>

#include <hpx/threading_base/detail/get_default_timer_service.hpp>

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)

#include <winsock2.h>

#endif

#include <asio/io_context.hpp>

namespace hpx::threads::detail {

    static get_default_timer_service_type get_default_timer_service_f;

    void set_get_default_timer_service(get_default_timer_service_type f)

        get_default_timer_service_f = HPX_MOVE(f);

    }

    ::asio::io_context& get_default_timer_service()

        if (detail::get_default_timer_service_f)

            return detail::get_default_timer_service_f();

        else

        {

#if defined(HPX_HAVE_TIMER_POOL)

            HPX_THROW_EXCEPTION(hpx::error::invalid_status,

                "No timer service installed. When running timed "

                "threads without a runtime a timer service has to be "

                "installed manually using "

                "hpx::threads::detail::set_get_default_timer_service.");

#else

            HPX_THROW_EXCEPTION(hpx::error::invalid_status,

                "hpx::threads::detail::get_default_timer_service",

                "No timer service installed. Rebuild HPX with "

                "HPX_WITH_TIMER_POOL=ON or provide a timer service "

                "manually using "

                "hpx::threads::detail::set_get_default_timer_service.");

#endif

        }

    }

}    // namespace hpx::threads::detail