// Copyright Oliver Kowalke 2013.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_FIBERS_ALGO_ROUND_ROBIN_H
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#define BOOST_FIBERS_ALGO_ROUND_ROBIN_H
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#include <condition_variable>
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#include <chrono>
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#include <mutex>
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#include <boost/config.hpp>
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#include <boost/fiber/algo/algorithm.hpp>
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#include <boost/fiber/context.hpp>
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#include <boost/fiber/detail/config.hpp>
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#include <boost/fiber/scheduler.hpp>
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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#ifdef _MSC_VER
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# pragma warning(push)
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# pragma warning(disable:4251)
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#endif
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namespace boost {
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namespace fibers {
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namespace algo {
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class BOOST_FIBERS_DECL round_robin : public algorithm {
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private:
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typedef scheduler::ready_queue_type rqueue_type;
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rqueue_type rqueue_{};
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std::mutex mtx_{};
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std::condition_variable cnd_{};
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bool flag_{ false };
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public:
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round_robin() = default;
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round_robin( round_robin const&) = delete;
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round_robin & operator=( round_robin const&) = delete;
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void awakened( context *) noexcept override;
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context * pick_next() noexcept override;
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bool has_ready_fibers() const noexcept override;
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void suspend_until( std::chrono::steady_clock::time_point const&) noexcept override;
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void notify() noexcept override;
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};
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}}}
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#ifdef _MSC_VER
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# pragma warning(pop)
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#endif
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_SUFFIX
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#endif
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#endif // BOOST_FIBERS_ALGO_ROUND_ROBIN_H
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