95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*
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Copyright (c) 2013, Steven Siloti
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBTORRENT_GET_ITEM_HPP
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#define LIBTORRENT_GET_ITEM_HPP
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#include <libtorrent/kademlia/find_data.hpp>
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#include <libtorrent/kademlia/item.hpp>
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#include <memory>
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namespace libtorrent { namespace dht
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{
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class get_item : public find_data
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{
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public:
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typedef std::function<void(item const&, bool)> data_callback;
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void got_data(bdecode_node const& v,
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public_key const& pk,
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sequence_number seq,
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signature const& sig);
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// for immutable items
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get_item(node& dht_node
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, node_id const& target
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, data_callback const& dcallback
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, nodes_callback const& ncallback);
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// for mutable items
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get_item(node& dht_node
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, public_key const& pk
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, span<char const> salt
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, data_callback const& dcallback
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, nodes_callback const& ncallback);
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virtual char const* name() const;
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protected:
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virtual observer_ptr new_observer(udp::endpoint const& ep
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, node_id const& id);
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virtual bool invoke(observer_ptr o);
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virtual void done();
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data_callback m_data_callback;
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item m_data;
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bool m_immutable;
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};
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class get_item_observer : public find_data_observer
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{
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public:
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get_item_observer(
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std::shared_ptr<traversal_algorithm> const& algorithm
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, udp::endpoint const& ep, node_id const& id)
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: find_data_observer(algorithm, ep, id)
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{}
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virtual void reply(msg const&);
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};
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} } // namespace libtorrent::dht
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#endif // LIBTORRENT_GET_ITEM_HPP
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