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diff --git a/src/third_party/boost-1.56.0/boost/asio/detail/reactor_op_queue.hpp b/src/third_party/boost-1.56.0/boost/asio/detail/reactor_op_queue.hpp
deleted file mode 100644
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--- a/src/third_party/boost-1.56.0/boost/asio/detail/reactor_op_queue.hpp
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@@ -1,170 +0,0 @@
-//
-// detail/reactor_op_queue.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2014 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// 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_ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
-#define BOOST_ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include <boost/asio/detail/config.hpp>
-#include <boost/asio/detail/hash_map.hpp>
-#include <boost/asio/detail/noncopyable.hpp>
-#include <boost/asio/detail/op_queue.hpp>
-#include <boost/asio/detail/reactor_op.hpp>
-#include <boost/asio/error.hpp>
-
-#include <boost/asio/detail/push_options.hpp>
-
-namespace boost {
-namespace asio {
-namespace detail {
-
-template <typename Descriptor>
-class reactor_op_queue
- : private noncopyable
-{
-public:
- typedef Descriptor key_type;
-
- struct mapped_type : op_queue<reactor_op>
- {
- mapped_type() {}
- mapped_type(const mapped_type&) {}
- void operator=(const mapped_type&) {}
- };
-
- typedef typename hash_map<key_type, mapped_type>::value_type value_type;
- typedef typename hash_map<key_type, mapped_type>::iterator iterator;
-
- // Constructor.
- reactor_op_queue()
- : operations_()
- {
- }
-
- // Obtain iterators to all registered descriptors.
- iterator begin() { return operations_.begin(); }
- iterator end() { return operations_.end(); }
-
- // Add a new operation to the queue. Returns true if this is the only
- // operation for the given descriptor, in which case the reactor's event
- // demultiplexing function call may need to be interrupted and restarted.
- bool enqueue_operation(Descriptor descriptor, reactor_op* op)
- {
- std::pair<iterator, bool> entry =
- operations_.insert(value_type(descriptor, mapped_type()));
- entry.first->second.push(op);
- return entry.second;
- }
-
- // Cancel all operations associated with the descriptor identified by the
- // supplied iterator. Any operations pending for the descriptor will be
- // cancelled. Returns true if any operations were cancelled, in which case
- // the reactor's event demultiplexing function may need to be interrupted and
- // restarted.
- bool cancel_operations(iterator i, op_queue<operation>& ops,
- const boost::system::error_code& ec =
- boost::asio::error::operation_aborted)
- {
- if (i != operations_.end())
- {
- while (reactor_op* op = i->second.front())
- {
- op->ec_ = ec;
- i->second.pop();
- ops.push(op);
- }
- operations_.erase(i);
- return true;
- }
-
- return false;
- }
-
- // Cancel all operations associated with the descriptor. Any operations
- // pending for the descriptor will be cancelled. Returns true if any
- // operations were cancelled, in which case the reactor's event
- // demultiplexing function may need to be interrupted and restarted.
- bool cancel_operations(Descriptor descriptor, op_queue<operation>& ops,
- const boost::system::error_code& ec =
- boost::asio::error::operation_aborted)
- {
- return this->cancel_operations(operations_.find(descriptor), ops, ec);
- }
-
- // Whether there are no operations in the queue.
- bool empty() const
- {
- return operations_.empty();
- }
-
- // Determine whether there are any operations associated with the descriptor.
- bool has_operation(Descriptor descriptor) const
- {
- return operations_.find(descriptor) != operations_.end();
- }
-
- // Perform the operations corresponding to the descriptor identified by the
- // supplied iterator. Returns true if there are still unfinished operations
- // queued for the descriptor.
- bool perform_operations(iterator i, op_queue<operation>& ops)
- {
- if (i != operations_.end())
- {
- while (reactor_op* op = i->second.front())
- {
- if (op->perform())
- {
- i->second.pop();
- ops.push(op);
- }
- else
- {
- return true;
- }
- }
- operations_.erase(i);
- }
- return false;
- }
-
- // Perform the operations corresponding to the descriptor. Returns true if
- // there are still unfinished operations queued for the descriptor.
- bool perform_operations(Descriptor descriptor, op_queue<operation>& ops)
- {
- return this->perform_operations(operations_.find(descriptor), ops);
- }
-
- // Get all operations owned by the queue.
- void get_all_operations(op_queue<operation>& ops)
- {
- iterator i = operations_.begin();
- while (i != operations_.end())
- {
- iterator op_iter = i++;
- ops.push(op_iter->second);
- operations_.erase(op_iter);
- }
- }
-
-private:
- // The operations that are currently executing asynchronously.
- hash_map<key_type, mapped_type> operations_;
-};
-
-} // namespace detail
-} // namespace asio
-} // namespace boost
-
-#include <boost/asio/detail/pop_options.hpp>
-
-#endif // BOOST_ASIO_DETAIL_REACTOR_OP_QUEUE_HPP