forked from premiere/premiere-libtorrent
116 lines
3.3 KiB
C++
Executable File
116 lines
3.3 KiB
C++
Executable File
/*
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Copyright (c) 2003, 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_HPP_INCLUDE
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#define TORRENT_STORAGE_HPP_INCLUDE
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#include <vector>
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#include <boost/limits.hpp>
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#include <boost/filesystem/path.hpp>
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#include <boost/thread.hpp>
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#include "libtorrent/entry.hpp"
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#include "libtorrent/torrent_info.hpp"
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#include "libtorrent/opaque_value_ptr.hpp"
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namespace libtorrent
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{
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namespace detail
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{
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class piece_checker_data;
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}
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class session;
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struct file_allocation_failed: std::exception
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{
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file_allocation_failed(const char* error_msg): m_msg(error_msg) {}
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virtual const char* what() const throw() { return m_msg.c_str(); }
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virtual ~file_allocation_failed() throw() {}
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std::string m_msg;
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};
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class storage
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{
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public:
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storage(
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const torrent_info& info
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, const boost::filesystem::path& path);
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void swap(storage&);
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typedef entry::integer_type size_type;
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size_type read(char* buf, int slot, size_type offset, size_type size);
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void write(const char* buf, int slot, size_type offset, size_type size);
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private:
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struct impl;
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opaque_value_ptr<impl> m_pimpl;
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};
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class piece_manager : boost::noncopyable
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{
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public:
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typedef entry::integer_type size_type;
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piece_manager(
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const torrent_info& info
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, const boost::filesystem::path& path);
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void check_pieces(
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boost::mutex& mutex
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, detail::piece_checker_data& data
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, std::vector<bool>& pieces);
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void allocate_slots(int num_slots);
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size_type read(char* buf, int piece_index, size_type offset, size_type size);
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void write(const char* buf, int piece_index, size_type offset, size_type size);
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const boost::filesystem::path& save_path() const;
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// fills the vector that maps all allocated
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// slots to the piece that is stored (or
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// partially stored) there
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void export_piece_map(std::vector<int>& pieces) const;
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private:
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struct impl;
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opaque_value_ptr<impl, false> m_pimpl;
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};
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}
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#endif // TORRENT_STORAGE_HPP_INCLUDED
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