69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/*
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Copyright (c) 2003-2018, 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_STORAGE_PIECE_SET_HPP_INCLUDE
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#define TORRENT_STORAGE_PIECE_SET_HPP_INCLUDE
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#include "libtorrent/aux_/disable_warnings_push.hpp"
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#include <boost/intrusive/list.hpp>
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#include "libtorrent/aux_/disable_warnings_pop.hpp"
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#include "libtorrent/aux_/export.hpp"
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#include "libtorrent/block_cache.hpp" // for cached_piece_entry
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namespace libtorrent {
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struct cached_piece_entry;
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namespace aux {
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// this class keeps track of which pieces, belonging to
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// a specific storage, are in the cache right now. It's
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// used for quickly being able to evict all pieces for a
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// specific torrent
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struct TORRENT_EXPORT storage_piece_set
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{
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using list_t = boost::intrusive::list<cached_piece_entry, boost::intrusive::constant_time_size<false>>;
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void add_piece(cached_piece_entry* p);
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void remove_piece(cached_piece_entry* p);
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int num_pieces() const { return m_num_pieces; }
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list_t const& cached_pieces() const
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{ return m_cached_pieces; }
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private:
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// these are cached pieces belonging to this storage
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list_t m_cached_pieces;
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int m_num_pieces = 0;
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};
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}}
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#endif
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