75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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Copyright (c) 2007-2018, Arvid Norberg
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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 TORRENT_BANDWIDTH_QUEUE_ENTRY_HPP_INCLUDED
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#define TORRENT_BANDWIDTH_QUEUE_ENTRY_HPP_INCLUDED
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#include <memory>
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#include "libtorrent/bandwidth_limit.hpp"
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#include "libtorrent/bandwidth_socket.hpp"
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#include "libtorrent/aux_/array.hpp"
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namespace libtorrent {
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struct TORRENT_EXTRA_EXPORT bw_request
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{
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bw_request(std::shared_ptr<bandwidth_socket> pe
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, int blk, int prio);
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std::shared_ptr<bandwidth_socket> peer;
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// 1 is normal prio
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int priority;
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// the number of bytes assigned to this request so far
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int assigned;
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// once assigned reaches this, we dispatch the request function
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int request_size;
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// the max number of rounds for this request to survive
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// this ensures that requests gets responses at very low
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// rate limits, when the requested size would take a long
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// time to satisfy
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int ttl;
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// loops over the bandwidth channels and assigns bandwidth
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// from the most limiting one
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int assign_bandwidth();
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static constexpr int max_bandwidth_channels = 10;
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// we don't actually support more than 10 channels per peer
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aux::array<bandwidth_channel*, max_bandwidth_channels> channel{};
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};
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}
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#endif
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