662 lines
18 KiB
C++
662 lines
18 KiB
C++
#ifndef BOOST_THREAD_SYNC_QUEUE_HPP
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#define BOOST_THREAD_SYNC_QUEUE_HPP
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//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Vicente J. Botet Escriba 2013. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/thread for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#include <boost/thread/detail/config.hpp>
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#include <boost/thread/condition_variable.hpp>
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#include <boost/thread/mutex.hpp>
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#include <boost/thread/detail/move.hpp>
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#include <boost/throw_exception.hpp>
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#include <boost/smart_ptr/shared_ptr.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
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#include <boost/thread/sync_bounded_queue.hpp>
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#include <boost/thread/csbl/deque.hpp>
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#include <boost/config/abi_prefix.hpp>
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namespace boost
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{
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template <typename ValueType>
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class sync_queue
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{
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public:
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typedef ValueType value_type;
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typedef csbl::deque<ValueType> underlying_queue_type;
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typedef std::size_t size_type;
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typedef queue_op_status op_status;
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// Constructors/Assignment/Destructors
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BOOST_THREAD_NO_COPYABLE(sync_queue)
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inline sync_queue();
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//template <typename Range>
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//inline explicit sync_queue(Range range);
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inline ~sync_queue();
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// Observers
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inline bool empty() const;
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inline bool full() const;
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inline size_type size() const;
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inline bool closed() const;
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// Modifiers
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inline void close();
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline void push(const value_type& x);
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inline bool try_push(const value_type& x);
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inline bool try_push(no_block_tag, const value_type& x);
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inline void push(BOOST_THREAD_RV_REF(value_type) x);
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inline bool try_push(BOOST_THREAD_RV_REF(value_type) x);
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inline bool try_push(no_block_tag, BOOST_THREAD_RV_REF(value_type) x);
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#endif
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inline void push_back(const value_type& x);
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inline queue_op_status try_push_back(const value_type& x);
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inline queue_op_status nonblocking_push_back(const value_type& x);
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inline queue_op_status wait_push_back(const value_type& x);
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inline void push_back(BOOST_THREAD_RV_REF(value_type) x);
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inline queue_op_status try_push_back(BOOST_THREAD_RV_REF(value_type) x);
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inline queue_op_status nonblocking_push_back(BOOST_THREAD_RV_REF(value_type) x);
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inline queue_op_status wait_push_back(BOOST_THREAD_RV_REF(value_type) x);
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// Observers/Modifiers
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline void pull(value_type&);
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inline void pull(ValueType& elem, bool & closed);
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// enable_if is_nothrow_copy_movable<value_type>
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inline value_type pull();
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inline shared_ptr<ValueType> ptr_pull();
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#endif
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inline void pull_front(value_type&);
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// enable_if is_nothrow_copy_movable<value_type>
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inline value_type pull_front();
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline bool try_pull(value_type&);
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inline bool try_pull(no_block_tag,value_type&);
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inline shared_ptr<ValueType> try_pull();
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#endif
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inline queue_op_status try_pull_front(value_type&);
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inline queue_op_status nonblocking_pull_front(value_type&);
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inline queue_op_status wait_pull_front(ValueType& elem);
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inline underlying_queue_type underlying_queue() {
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lock_guard<mutex> lk(mtx_);
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return boost::move(data_);
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}
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private:
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mutable mutex mtx_;
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condition_variable not_empty_;
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size_type waiting_empty_;
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underlying_queue_type data_;
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bool closed_;
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inline bool empty(unique_lock<mutex>& ) const BOOST_NOEXCEPT
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{
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return data_.empty();
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}
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inline bool empty(lock_guard<mutex>& ) const BOOST_NOEXCEPT
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{
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return data_.empty();
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}
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inline size_type size(lock_guard<mutex>& ) const BOOST_NOEXCEPT
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{
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return data_.size();
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}
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inline void throw_if_closed(unique_lock<mutex>&);
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inline bool closed(unique_lock<mutex>& lk) const;
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline bool try_pull(value_type& x, unique_lock<mutex>& lk);
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inline bool try_push(const value_type& x, unique_lock<mutex>& lk);
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inline bool try_push(BOOST_THREAD_RV_REF(value_type) x, unique_lock<mutex>& lk);
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inline shared_ptr<value_type> try_pull(unique_lock<mutex>& lk);
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#endif
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inline queue_op_status try_pull_front(value_type& x, unique_lock<mutex>& lk);
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inline queue_op_status wait_pull_front(value_type& x, unique_lock<mutex>& lk);
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inline queue_op_status try_push_back(const value_type& x, unique_lock<mutex>& lk);
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inline queue_op_status wait_push_back(const value_type& x, unique_lock<mutex>& lk);
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inline queue_op_status try_push_back(BOOST_THREAD_RV_REF(value_type) x, unique_lock<mutex>& lk);
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inline queue_op_status wait_push_back(BOOST_THREAD_RV_REF(value_type) x, unique_lock<mutex>& lk);
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inline void wait_until_not_empty(unique_lock<mutex>& lk);
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inline void wait_until_not_empty(unique_lock<mutex>& lk, bool&);
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inline void notify_not_empty_if_needed(unique_lock<mutex>& lk)
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{
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if (waiting_empty_ > 0)
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{
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--waiting_empty_;
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lk.unlock();
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not_empty_.notify_one();
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}
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline void pull(value_type& elem, unique_lock<mutex>& )
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{
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elem = boost::move(data_.front());
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data_.pop_front();
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}
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inline value_type pull(unique_lock<mutex>& )
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{
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value_type e = boost::move(data_.front());
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data_.pop_front();
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return boost::move(e);
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}
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inline boost::shared_ptr<value_type> ptr_pull(unique_lock<mutex>& )
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{
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shared_ptr<value_type> res = make_shared<value_type>(boost::move(data_.front()));
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data_.pop_front();
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return res;
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}
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#endif
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inline void pull_front(value_type& elem, unique_lock<mutex>& )
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{
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elem = boost::move(data_.front());
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data_.pop_front();
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}
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inline value_type pull_front(unique_lock<mutex>& )
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{
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value_type e = boost::move(data_.front());
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data_.pop_front();
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return boost::move(e);
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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inline void push(const value_type& elem, unique_lock<mutex>& lk)
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{
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data_.push_back(elem);
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notify_not_empty_if_needed(lk);
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}
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inline void push(BOOST_THREAD_RV_REF(value_type) elem, unique_lock<mutex>& lk)
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{
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data_.push_back(boost::move(elem));
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notify_not_empty_if_needed(lk);
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}
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#endif
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inline void push_back(const value_type& elem, unique_lock<mutex>& lk)
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{
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data_.push_back(elem);
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notify_not_empty_if_needed(lk);
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}
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inline void push_back(BOOST_THREAD_RV_REF(value_type) elem, unique_lock<mutex>& lk)
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{
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data_.push_back(boost::move(elem));
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notify_not_empty_if_needed(lk);
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}
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};
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template <typename ValueType>
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sync_queue<ValueType>::sync_queue() :
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waiting_empty_(0), data_(), closed_(false)
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{
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BOOST_ASSERT(data_.empty());
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}
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// template <typename ValueType>
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// template <typename Range>
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// explicit sync_queue<ValueType>::sync_queue(Range range) :
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// waiting_empty_(0), data_(), closed_(false)
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// {
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// try
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// {
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// typedef typename Range::iterator iterator_t;
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// iterator_t first = boost::begin(range);
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// iterator_t end = boost::end(range);
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// for (iterator_t cur = first; cur != end; ++cur)
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// {
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// data_.push(boost::move(*cur));;
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// }
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// notify_not_empty_if_needed(lk);
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// }
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// catch (...)
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// {
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// delete[] data_;
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// }
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// }
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template <typename ValueType>
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sync_queue<ValueType>::~sync_queue()
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{
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}
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template <typename ValueType>
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void sync_queue<ValueType>::close()
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{
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{
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lock_guard<mutex> lk(mtx_);
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closed_ = true;
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}
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not_empty_.notify_all();
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}
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template <typename ValueType>
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bool sync_queue<ValueType>::closed() const
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{
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lock_guard<mutex> lk(mtx_);
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return closed_;
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}
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template <typename ValueType>
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bool sync_queue<ValueType>::closed(unique_lock<mutex>&) const
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{
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return closed_;
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}
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template <typename ValueType>
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bool sync_queue<ValueType>::empty() const
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{
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lock_guard<mutex> lk(mtx_);
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return empty(lk);
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}
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template <typename ValueType>
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bool sync_queue<ValueType>::full() const
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{
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return false;
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}
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template <typename ValueType>
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typename sync_queue<ValueType>::size_type sync_queue<ValueType>::size() const
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{
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lock_guard<mutex> lk(mtx_);
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return size(lk);
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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bool sync_queue<ValueType>::try_pull(ValueType& elem, unique_lock<mutex>& lk)
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{
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if (empty(lk))
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{
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throw_if_closed(lk);
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return false;
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}
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pull(elem, lk);
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return true;
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}
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template <typename ValueType>
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shared_ptr<ValueType> sync_queue<ValueType>::try_pull(unique_lock<mutex>& lk)
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{
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if (empty(lk))
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{
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throw_if_closed(lk);
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return shared_ptr<ValueType>();
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}
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return ptr_pull(lk);
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}
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#endif
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::try_pull_front(ValueType& elem, unique_lock<mutex>& lk)
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{
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if (empty(lk))
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{
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if (closed(lk)) return queue_op_status::closed;
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return queue_op_status::empty;
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}
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pull_front(elem, lk);
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return queue_op_status::success;
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}
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::wait_pull_front(ValueType& elem, unique_lock<mutex>& lk)
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{
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if (empty(lk))
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{
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if (closed(lk)) return queue_op_status::closed;
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}
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bool has_been_closed = false;
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wait_until_not_empty(lk, has_been_closed);
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if (has_been_closed) return queue_op_status::closed;
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pull_front(elem, lk);
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return queue_op_status::success;
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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bool sync_queue<ValueType>::try_pull(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return try_pull(elem, lk);
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}
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#endif
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::try_pull_front(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return try_pull_front(elem, lk);
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}
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::wait_pull_front(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return wait_pull_front(elem, lk);
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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bool sync_queue<ValueType>::try_pull(no_block_tag,ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_, try_to_lock);
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if (!lk.owns_lock())
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{
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return false;
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}
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return try_pull(elem, lk);
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}
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template <typename ValueType>
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boost::shared_ptr<ValueType> sync_queue<ValueType>::try_pull()
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{
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unique_lock<mutex> lk(mtx_);
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return try_pull(lk);
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}
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#endif
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::nonblocking_pull_front(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_, try_to_lock);
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if (!lk.owns_lock())
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{
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return queue_op_status::busy;
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}
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return try_pull_front(elem, lk);
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}
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template <typename ValueType>
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void sync_queue<ValueType>::throw_if_closed(unique_lock<mutex>&)
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{
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if (closed_)
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{
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BOOST_THROW_EXCEPTION( sync_queue_is_closed() );
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}
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}
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template <typename ValueType>
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void sync_queue<ValueType>::wait_until_not_empty(unique_lock<mutex>& lk)
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{
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for (;;)
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{
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if (! empty(lk)) break;
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throw_if_closed(lk);
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++waiting_empty_;
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not_empty_.wait(lk);
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}
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}
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template <typename ValueType>
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void sync_queue<ValueType>::wait_until_not_empty(unique_lock<mutex>& lk, bool & closed)
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{
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for (;;)
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{
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if (! empty(lk)) break;
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if (closed_) {closed=true; return;}
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++waiting_empty_;
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not_empty_.wait(lk);
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}
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closed=false;
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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void sync_queue<ValueType>::pull(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk);
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pull(elem, lk);
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}
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template <typename ValueType>
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void sync_queue<ValueType>::pull(ValueType& elem, bool & closed)
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk, closed);
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if (closed) {return;}
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pull(elem, lk);
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}
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// enable if ValueType is nothrow movable
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template <typename ValueType>
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ValueType sync_queue<ValueType>::pull()
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk);
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return pull(lk);
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}
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template <typename ValueType>
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boost::shared_ptr<ValueType> sync_queue<ValueType>::ptr_pull()
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk);
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return ptr_pull(lk);
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}
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#endif
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template <typename ValueType>
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void sync_queue<ValueType>::pull_front(ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk);
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pull_front(elem, lk);
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}
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// enable if ValueType is nothrow movable
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template <typename ValueType>
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ValueType sync_queue<ValueType>::pull_front()
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{
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unique_lock<mutex> lk(mtx_);
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wait_until_not_empty(lk);
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return pull_front(lk);
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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bool sync_queue<ValueType>::try_push(const ValueType& elem, unique_lock<mutex>& lk)
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{
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throw_if_closed(lk);
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push(elem, lk);
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return true;
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}
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template <typename ValueType>
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bool sync_queue<ValueType>::try_push(const ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return try_push(elem, lk);
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}
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#endif
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::try_push_back(const ValueType& elem, unique_lock<mutex>& lk)
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{
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if (closed(lk)) return queue_op_status::closed;
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push_back(elem, lk);
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return queue_op_status::success;
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}
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::try_push_back(const ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return try_push_back(elem, lk);
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}
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::wait_push_back(const ValueType& elem, unique_lock<mutex>& lk)
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{
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if (closed(lk)) return queue_op_status::closed;
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push_back(elem, lk);
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return queue_op_status::success;
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}
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template <typename ValueType>
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queue_op_status sync_queue<ValueType>::wait_push_back(const ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_);
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return wait_push_back(elem, lk);
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}
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#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
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template <typename ValueType>
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bool sync_queue<ValueType>::try_push(no_block_tag, const ValueType& elem)
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{
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unique_lock<mutex> lk(mtx_, try_to_lock);
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if (!lk.owns_lock()) return false;
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return try_push(elem, lk);
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}
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|
#endif
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::nonblocking_push_back(const ValueType& elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_, try_to_lock);
|
|
if (!lk.owns_lock()) return queue_op_status::busy;
|
|
return try_push_back(elem, lk);
|
|
}
|
|
|
|
#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
|
|
template <typename ValueType>
|
|
void sync_queue<ValueType>::push(const ValueType& elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
throw_if_closed(lk);
|
|
push(elem, lk);
|
|
}
|
|
#endif
|
|
|
|
template <typename ValueType>
|
|
void sync_queue<ValueType>::push_back(const ValueType& elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
throw_if_closed(lk);
|
|
push_back(elem, lk);
|
|
}
|
|
|
|
#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
|
|
template <typename ValueType>
|
|
bool sync_queue<ValueType>::try_push(BOOST_THREAD_RV_REF(ValueType) elem, unique_lock<mutex>& lk)
|
|
{
|
|
throw_if_closed(lk);
|
|
push(boost::move(elem), lk);
|
|
return true;
|
|
}
|
|
|
|
template <typename ValueType>
|
|
bool sync_queue<ValueType>::try_push(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
return try_push(boost::move(elem), lk);
|
|
}
|
|
#endif
|
|
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::try_push_back(BOOST_THREAD_RV_REF(ValueType) elem, unique_lock<mutex>& lk)
|
|
{
|
|
if (closed(lk)) return queue_op_status::closed;
|
|
push_back(boost::move(elem), lk);
|
|
return queue_op_status::success;
|
|
}
|
|
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::try_push_back(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
return try_push_back(boost::move(elem), lk);
|
|
}
|
|
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::wait_push_back(BOOST_THREAD_RV_REF(ValueType) elem, unique_lock<mutex>& lk)
|
|
{
|
|
if (closed(lk)) return queue_op_status::closed;
|
|
push_back(boost::move(elem), lk);
|
|
return queue_op_status::success;
|
|
}
|
|
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::wait_push_back(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
return wait_push_back(boost::move(elem), lk);
|
|
}
|
|
|
|
#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
|
|
template <typename ValueType>
|
|
bool sync_queue<ValueType>::try_push(no_block_tag, BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_, try_to_lock);
|
|
if (!lk.owns_lock())
|
|
{
|
|
return false;
|
|
}
|
|
return try_push(boost::move(elem), lk);
|
|
}
|
|
#endif
|
|
|
|
template <typename ValueType>
|
|
queue_op_status sync_queue<ValueType>::nonblocking_push_back(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_, try_to_lock);
|
|
if (!lk.owns_lock())
|
|
{
|
|
return queue_op_status::busy;
|
|
}
|
|
return try_push_back(boost::move(elem), lk);
|
|
}
|
|
|
|
#ifndef BOOST_THREAD_QUEUE_DEPRECATE_OLD
|
|
template <typename ValueType>
|
|
void sync_queue<ValueType>::push(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
throw_if_closed(lk);
|
|
push(boost::move(elem), lk);
|
|
}
|
|
#endif
|
|
|
|
template <typename ValueType>
|
|
void sync_queue<ValueType>::push_back(BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
unique_lock<mutex> lk(mtx_);
|
|
throw_if_closed(lk);
|
|
push_back(boost::move(elem), lk);
|
|
}
|
|
|
|
template <typename ValueType>
|
|
sync_queue<ValueType>& operator<<(sync_queue<ValueType>& sbq, BOOST_THREAD_RV_REF(ValueType) elem)
|
|
{
|
|
sbq.push_back(boost::move(elem));
|
|
return sbq;
|
|
}
|
|
|
|
template <typename ValueType>
|
|
sync_queue<ValueType>& operator<<(sync_queue<ValueType>& sbq, ValueType const&elem)
|
|
{
|
|
sbq.push_back(elem);
|
|
return sbq;
|
|
}
|
|
|
|
template <typename ValueType>
|
|
sync_queue<ValueType>& operator>>(sync_queue<ValueType>& sbq, ValueType &elem)
|
|
{
|
|
sbq.pull_front(elem);
|
|
return sbq;
|
|
}
|
|
|
|
}
|
|
|
|
#include <boost/config/abi_suffix.hpp>
|
|
|
|
#endif
|