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- //
- // impl/system_context.ipp
- // ~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
- //
- // 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)
- //
-
- #ifndef ASIO_IMPL_SYSTEM_CONTEXT_IPP
- #define ASIO_IMPL_SYSTEM_CONTEXT_IPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
- #include "asio/system_context.hpp"
-
- #include "asio/detail/push_options.hpp"
-
- namespace asio {
-
- struct system_context::thread_function
- {
- detail::scheduler* scheduler_;
-
- void operator()()
- {
- asio::error_code ec;
- scheduler_->run(ec);
- }
- };
-
- system_context::system_context()
- : scheduler_(add_scheduler(new detail::scheduler(*this, 0, false)))
- {
- scheduler_.work_started();
-
- thread_function f = { &scheduler_ };
- std::size_t num_threads = detail::thread::hardware_concurrency() * 2;
- threads_.create_threads(f, num_threads ? num_threads : 2);
- }
-
- system_context::~system_context()
- {
- scheduler_.work_finished();
- scheduler_.stop();
- threads_.join();
- }
-
- void system_context::stop()
- {
- scheduler_.stop();
- }
-
- bool system_context::stopped() const ASIO_NOEXCEPT
- {
- return scheduler_.stopped();
- }
-
- void system_context::join()
- {
- scheduler_.work_finished();
- threads_.join();
- }
-
- detail::scheduler& system_context::add_scheduler(detail::scheduler* s)
- {
- detail::scoped_ptr<detail::scheduler> scoped_impl(s);
- asio::add_service<detail::scheduler>(*this, scoped_impl.get());
- return *scoped_impl.release();
- }
-
- } // namespace asio
-
- #include "asio/detail/pop_options.hpp"
-
- #endif // ASIO_IMPL_SYSTEM_CONTEXT_IPP
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