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85 lines
2.1 KiB
85 lines
2.1 KiB
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// 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_TIMED_MUTEX_H |
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#define BOOST_FIBERS_TIMED_MUTEX_H |
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#include <chrono> |
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#include <boost/assert.hpp> |
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#include <boost/config.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/detail/convert.hpp> |
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#include <boost/fiber/detail/spinlock.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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class condition_variable; |
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class BOOST_FIBERS_DECL timed_mutex { |
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private: |
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friend class condition_variable; |
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typedef context::wait_queue_t wait_queue_type; |
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detail::spinlock wait_queue_splk_{}; |
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wait_queue_type wait_queue_{}; |
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context * owner_{ nullptr }; |
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bool try_lock_until_( std::chrono::steady_clock::time_point const& timeout_time) noexcept; |
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public: |
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timed_mutex() = default; |
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~timed_mutex() { |
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BOOST_ASSERT( nullptr == owner_); |
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BOOST_ASSERT( wait_queue_.empty() ); |
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} |
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timed_mutex( timed_mutex const&) = delete; |
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timed_mutex & operator=( timed_mutex const&) = delete; |
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void lock(); |
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bool try_lock(); |
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template< typename Clock, typename Duration > |
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bool try_lock_until( std::chrono::time_point< Clock, Duration > const& timeout_time_) { |
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std::chrono::steady_clock::time_point timeout_time = detail::convert( timeout_time_); |
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return try_lock_until_( timeout_time); |
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} |
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template< typename Rep, typename Period > |
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bool try_lock_for( std::chrono::duration< Rep, Period > const& timeout_duration) { |
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return try_lock_until_( std::chrono::steady_clock::now() + timeout_duration); |
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} |
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void unlock(); |
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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_TIMED_MUTEX_H
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