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// Copyright Oliver Kowalke 2013. // 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 BOOST_FIBERS_ALGO_ROUND_ROBIN_H #define BOOST_FIBERS_ALGO_ROUND_ROBIN_H #include <condition_variable> #include <chrono> #include <mutex> #include <boost/config.hpp> #include <boost/fiber/algo/algorithm.hpp> #include <boost/fiber/context.hpp> #include <boost/fiber/detail/config.hpp> #include <boost/fiber/scheduler.hpp> #ifdef BOOST_HAS_ABI_HEADERS # include BOOST_ABI_PREFIX #endif #ifdef _MSC_VER # pragma warning(push) # pragma warning(disable:4251) #endif namespace boost { namespace fibers { namespace algo { class BOOST_FIBERS_DECL round_robin : public algorithm { private: typedef scheduler::ready_queue_type rqueue_type; rqueue_type rqueue_{}; std::mutex mtx_{}; std::condition_variable cnd_{}; bool flag_{ false }; public: round_robin() = default; round_robin( round_robin const&) = delete; round_robin & operator=( round_robin const&) = delete; void awakened( context *) noexcept override; context * pick_next() noexcept override; bool has_ready_fibers() const noexcept override; void suspend_until( std::chrono::steady_clock::time_point const&) noexcept override; void notify() noexcept override; }; }}} #ifdef _MSC_VER # pragma warning(pop) #endif #ifdef BOOST_HAS_ABI_HEADERS # include BOOST_ABI_SUFFIX #endif #endif // BOOST_FIBERS_ALGO_ROUND_ROBIN_H
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