116 lines
4.6 KiB
C++
116 lines
4.6 KiB
C++
/*
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Copyright (c) 2012-2016, 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_DISK_INTERFACE_HPP
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#define TORRENT_DISK_INTERFACE_HPP
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#include "libtorrent/bdecode.hpp"
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#include <string>
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namespace libtorrent
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{
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struct storage_interface;
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struct peer_request;
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struct disk_observer;
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struct file_pool;
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struct add_torrent_params;
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struct cache_status;
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struct TORRENT_EXTRA_EXPORT disk_interface
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{
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enum return_t
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{
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// return values from check_fastresume, and move_storage
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no_error = 0,
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fatal_disk_error = -1,
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need_full_check = -2,
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disk_check_aborted = -3,
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file_exist = -4
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};
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enum flags_t
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{
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// this flag is set on a job when a read operation did
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// not hit the disk, but found the data in the read cache.
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cache_hit = 0x2,
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};
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virtual void async_read(storage_interface* storage, peer_request const& r
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, std::function<void(aux::block_cache_reference ref, char* block
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, int flags, storage_error const& se)> handler, void* requester, std::uint8_t flags = 0) = 0;
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virtual void async_write(storage_interface* storage, peer_request const& r
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, disk_buffer_holder buffer
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, std::function<void(storage_error const&)> handler
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, std::uint8_t flags = 0) = 0;
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virtual void async_hash(storage_interface* storage, int piece, std::uint8_t flags
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, std::function<void(int, int, sha1_hash const&, storage_error const&)> handler, void* requester) = 0;
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virtual void async_move_storage(storage_interface* storage, std::string const& p, std::uint8_t flags
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, std::function<void(int, std::string const&, storage_error const&)> handler) = 0;
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virtual void async_release_files(storage_interface* storage
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, std::function<void()> handler = std::function<void()>()) = 0;
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virtual void async_check_files(storage_interface* storage
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, add_torrent_params const* resume_data
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, std::vector<std::string>& links
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, std::function<void(int, storage_error const&)> handler) = 0;
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virtual void async_flush_piece(storage_interface* storage, int piece
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, std::function<void()> handler = std::function<void()>()) = 0;
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virtual void async_stop_torrent(storage_interface* storage
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, std::function<void()> handler = std::function<void()>()) = 0;
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virtual void async_rename_file(storage_interface* storage, int index, std::string const& name
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, std::function<void(std::string const&, int, storage_error const&)> handler) = 0;
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virtual void async_delete_files(storage_interface* storage, int options
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, std::function<void(storage_error const&)> handler) = 0;
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virtual void async_set_file_priority(storage_interface* storage
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, std::vector<std::uint8_t> const& prio
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, std::function<void(storage_error const&)> handler) = 0;
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virtual void async_clear_piece(storage_interface* storage, int index
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, std::function<void(int)> handler) = 0;
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virtual void clear_piece(storage_interface* storage, int index) = 0;
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virtual void update_stats_counters(counters& c) const = 0;
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virtual void get_cache_info(cache_status* ret, bool no_pieces = true
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, storage_interface const* storage = 0) const = 0;
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virtual file_pool& files() = 0;
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#if TORRENT_USE_ASSERTS
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virtual bool is_disk_buffer(char* buffer) const = 0;
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#endif
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protected:
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~disk_interface() {}
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};
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}
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#endif
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