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