595 lines
20 KiB
C++
595 lines
20 KiB
C++
/*
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Copyright (c) 2013, 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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#include <iostream>
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#include "test.hpp"
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#include "setup_transfer.hpp"
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#include "libtorrent/file_storage.hpp"
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#include "libtorrent/aux_/path.hpp"
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using namespace lt;
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void setup_test_storage(file_storage& st)
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{
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st.add_file(combine_path("test", "a"), 10000);
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st.add_file(combine_path("test", "b"), 20000);
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st.add_file(combine_path("test", combine_path("c", "a")), 30000);
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st.add_file(combine_path("test", combine_path("c", "b")), 40000);
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st.set_piece_length(0x4000);
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st.set_num_pieces((int(st.total_size()) + st.piece_length() - 1) / 0x4000);
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TEST_EQUAL(st.file_name(file_index_t{0}), "a");
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TEST_EQUAL(st.file_name(file_index_t{1}), "b");
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TEST_EQUAL(st.file_name(file_index_t{2}), "a");
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TEST_EQUAL(st.file_name(file_index_t{3}), "b");
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TEST_EQUAL(st.name(), "test");
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TEST_EQUAL(st.file_path(file_index_t{0}), combine_path("test", "a"));
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TEST_EQUAL(st.file_path(file_index_t{1}), combine_path("test", "b"));
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TEST_EQUAL(st.file_path(file_index_t{2}), combine_path("test", combine_path("c", "a")));
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TEST_EQUAL(st.file_path(file_index_t{3}), combine_path("test", combine_path("c", "b")));
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TEST_EQUAL(st.file_size(file_index_t{0}), 10000);
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TEST_EQUAL(st.file_size(file_index_t{1}), 20000);
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TEST_EQUAL(st.file_size(file_index_t{2}), 30000);
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TEST_EQUAL(st.file_size(file_index_t{3}), 40000);
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TEST_EQUAL(st.file_offset(file_index_t{0}), 0);
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TEST_EQUAL(st.file_offset(file_index_t{1}), 10000);
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TEST_EQUAL(st.file_offset(file_index_t{2}), 30000);
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TEST_EQUAL(st.file_offset(file_index_t{3}), 60000);
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TEST_EQUAL(st.total_size(), 100000);
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TEST_EQUAL(st.piece_length(), 0x4000);
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std::printf("%d\n", st.num_pieces());
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TEST_EQUAL(st.num_pieces(), (100000 + 0x3fff) / 0x4000);
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}
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TORRENT_TEST(coalesce_path)
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{
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file_storage st;
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st.add_file(combine_path("test", "a"), 10000);
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TEST_EQUAL(st.paths().size(), 1);
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TEST_EQUAL(st.paths()[0], "");
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st.add_file(combine_path("test", "b"), 20000);
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TEST_EQUAL(st.paths().size(), 1);
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TEST_EQUAL(st.paths()[0], "");
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st.add_file(combine_path("test", combine_path("c", "a")), 30000);
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TEST_EQUAL(st.paths().size(), 2);
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TEST_EQUAL(st.paths()[0], "");
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TEST_EQUAL(st.paths()[1], "c");
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// make sure that two files with the same path shares the path entry
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st.add_file(combine_path("test", combine_path("c", "b")), 40000);
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TEST_EQUAL(st.paths().size(), 2);
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TEST_EQUAL(st.paths()[0], "");
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TEST_EQUAL(st.paths()[1], "c");
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// cause pad files to be created, to make sure the pad files also share the
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// same path entries
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st.optimize(0, 1024, true);
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TEST_EQUAL(st.paths().size(), 3);
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TEST_EQUAL(st.paths()[0], "");
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TEST_EQUAL(st.paths()[1], "c");
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TEST_EQUAL(st.paths()[2], ".pad");
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}
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TORRENT_TEST(rename_file)
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{
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// test rename_file
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file_storage st;
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setup_test_storage(st);
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st.rename_file(file_index_t{0}, combine_path("test", combine_path("c", "d")));
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), combine_path(".", combine_path("test"
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, combine_path("c", "d"))));
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TEST_EQUAL(st.file_path(file_index_t{0}, ""), combine_path("test"
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, combine_path("c", "d")));
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// files with absolute paths should ignore the save_path argument
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// passed in to file_path()
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#ifdef TORRENT_WINDOWS
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st.rename_file(file_index_t{0}, "c:\\tmp\\a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), "c:\\tmp\\a");
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#else
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st.rename_file(file_index_t{0}, "/tmp/a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), "/tmp/a");
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#endif
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st.rename_file(file_index_t{0}, combine_path("test__", "a"));
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), combine_path(".", combine_path("test__"
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, "a")));
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}
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TORRENT_TEST(set_name)
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{
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// test set_name. Make sure the name of the torrent is not encoded
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// in the paths of each individual file. When changing the name of the
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// torrent, the path of the files should change too
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file_storage st;
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setup_test_storage(st);
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st.set_name("test_2");
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), combine_path(".", combine_path("test_2"
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, "a")));
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}
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TORRENT_TEST(rename_file2)
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{
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// test rename_file
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file_storage st;
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st.add_file("a", 10000);
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TEST_EQUAL(st.file_path(file_index_t{0}, ""), "a");
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st.rename_file(file_index_t{0}, combine_path("test", combine_path("c", "d")));
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), combine_path(".", combine_path("test", combine_path("c", "d"))));
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TEST_EQUAL(st.file_path(file_index_t{0}, ""), combine_path("test", combine_path("c", "d")));
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#ifdef TORRENT_WINDOWS
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st.rename_file(file_index_t{0}, "c:\\tmp\\a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), "c:\\tmp\\a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "c:\\test-1\\test2"), "c:\\tmp\\a");
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#else
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st.rename_file(file_index_t{0}, "/tmp/a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), "/tmp/a");
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TEST_EQUAL(st.file_path(file_index_t{0}, "/usr/local/temp"), "/tmp/a");
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#endif
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st.rename_file(file_index_t{0}, combine_path("tmp", "a"));
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TEST_EQUAL(st.file_path(file_index_t{0}, "."), combine_path("tmp", "a"));
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}
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TORRENT_TEST(pointer_offset)
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{
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// test applying pointer offset
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file_storage st;
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char const filename[] = "test1fooba";
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st.add_file_borrow(filename, 5, combine_path("test-torrent-1", "test1")
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, 10);
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// test filename_ptr and filename_len
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TEST_EQUAL(st.file_name_ptr(file_index_t{0}), filename);
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TEST_EQUAL(st.file_name_len(file_index_t{0}), 5);
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TEST_EQUAL(st.file_path(file_index_t{0}, ""), combine_path("test-torrent-1", "test1"));
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TEST_EQUAL(st.file_path(file_index_t{0}, "tmp"), combine_path("tmp"
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, combine_path("test-torrent-1", "test1")));
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// apply a pointer offset of 5 bytes. The name of the file should
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// change to "fooba".
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st.apply_pointer_offset(5);
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TEST_EQUAL(st.file_path(file_index_t{0}, ""), combine_path("test-torrent-1", "fooba"));
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TEST_EQUAL(st.file_path(file_index_t{0}, "tmp"), combine_path("tmp"
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, combine_path("test-torrent-1", "fooba")));
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// test filename_ptr and filename_len
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TEST_EQUAL(st.file_name_ptr(file_index_t{0}), filename + 5);
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TEST_EQUAL(st.file_name_len(file_index_t{0}), 5);
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}
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TORRENT_TEST(map_file)
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{
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// test map_file
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file_storage fs;
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fs.set_piece_length(512);
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fs.add_file(combine_path("temp_storage", "test1.tmp"), 17);
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fs.add_file(combine_path("temp_storage", "test2.tmp"), 612);
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fs.add_file(combine_path("temp_storage", "test3.tmp"), 0);
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fs.add_file(combine_path("temp_storage", "test4.tmp"), 0);
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fs.add_file(combine_path("temp_storage", "test5.tmp"), 3253);
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// size: 3882
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fs.add_file(combine_path("temp_storage", "test6.tmp"), 841);
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// size: 4723
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peer_request rq = fs.map_file(file_index_t{0}, 0, 10);
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TEST_EQUAL(rq.piece, piece_index_t{0});
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TEST_EQUAL(rq.start, 0);
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TEST_EQUAL(rq.length, 10);
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rq = fs.map_file(file_index_t{5}, 0, 10);
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TEST_EQUAL(rq.piece, piece_index_t{7});
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TEST_EQUAL(rq.start, 298);
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TEST_EQUAL(rq.length, 10);
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rq = fs.map_file(file_index_t{5}, 0, 1000);
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TEST_EQUAL(rq.piece, piece_index_t{7});
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TEST_EQUAL(rq.start, 298);
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TEST_EQUAL(rq.length, 841);
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}
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TORRENT_TEST(file_path_hash)
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{
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// test file_path_hash and path_hash. Make sure we can detect a path
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// whose name collides with
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file_storage fs;
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fs.set_piece_length(512);
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fs.add_file(combine_path("temp_storage", "Foo"), 17);
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fs.add_file(combine_path("temp_storage", "foo"), 612);
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std::printf("path: %s\n", fs.file_path(file_index_t(0)).c_str());
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std::printf("file: %s\n", fs.file_path(file_index_t(1)).c_str());
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std::uint32_t file_hash0 = fs.file_path_hash(file_index_t(0), "a");
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std::uint32_t file_hash1 = fs.file_path_hash(file_index_t(1), "a");
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TEST_EQUAL(file_hash0, file_hash1);
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}
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// make sure that files whose size is a multiple by the alignment are picked
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// first, since that lets us keep placing files aligned
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TORRENT_TEST(optimize_aligned_sizes)
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{
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file_storage fs;
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fs.set_piece_length(512);
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fs.add_file(combine_path("s", "1"), 1);
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fs.add_file(combine_path("s", "2"), 40000);
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fs.add_file(combine_path("s", "3"), 1024);
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fs.optimize(512, 512, false);
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// since the size of file 3 is a multiple of the alignment (512), it should
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// be prioritized, to minimize the amount of padding.
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// after that, we want to pick the largest file (2), and since file 1 is
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// smaller than the pad-file limit (512) we won't pad it. Since tail_padding
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// is false, we won't pad the tail of the torrent either
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TEST_EQUAL(fs.num_files(), 3);
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TEST_EQUAL(fs.file_size(file_index_t(0)), 1024);
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TEST_EQUAL(fs.file_name(file_index_t(0)), "3");
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TEST_EQUAL(fs.pad_file_at(file_index_t(0)), false);
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TEST_EQUAL(fs.file_size(file_index_t(1)), 40000);
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TEST_EQUAL(fs.file_name(file_index_t(1)), "2");
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TEST_EQUAL(fs.pad_file_at(file_index_t(1)), false);
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TEST_EQUAL(fs.file_size(file_index_t(2)), 1);
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TEST_EQUAL(fs.file_name(file_index_t(2)), "1");
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TEST_EQUAL(fs.pad_file_at(file_index_t(2)), false);
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}
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// make sure we pad the end of the torrent when tail_padding is specified
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TORRENT_TEST(optimize_tail_padding)
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{
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file_storage fs;
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fs.set_piece_length(512);
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fs.add_file(combine_path("s", "1"), 700);
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fs.optimize(512, 512, true);
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// since the size of file 3 is a multiple of the alignment (512), it should
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// be prioritized, to minimize the amount of padding.
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// after that, we want to pick the largest file (2), and since file 1 is
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// smaller than the pad-file limit (512) we won't pad it. Since tail_padding
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// is false, we won't pad the tail of the torrent either
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TEST_EQUAL(fs.num_files(), 2);
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TEST_EQUAL(fs.file_size(file_index_t(0)), 700);
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TEST_EQUAL(fs.file_name(file_index_t(0)), "1");
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TEST_EQUAL(fs.pad_file_at(file_index_t(0)), false);
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TEST_EQUAL(fs.file_size(file_index_t(1)), 1024 - 700);
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TEST_EQUAL(fs.pad_file_at(file_index_t(1)), true);
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}
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// make sure we fill in padding with small files
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TORRENT_TEST(optimize_pad_fillers)
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{
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file_storage fs;
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fs.set_piece_length(512);
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fs.add_file(combine_path("s", "1"), 1);
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fs.add_file(combine_path("s", "2"), 1000);
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fs.add_file(combine_path("s", "3"), 1001);
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fs.optimize(512, 512, false);
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// first we pick the largest file, then we need to add padding, since file 1
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// is smaller than the pad file limit, it won't be aligned anyway, so we
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// place that as part of the padding
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TEST_EQUAL(fs.num_files(), 4);
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TEST_EQUAL(fs.file_size(file_index_t(0)), 1001);
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TEST_EQUAL(fs.file_name(file_index_t(0)), "3");
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TEST_EQUAL(fs.pad_file_at(file_index_t(0)), false);
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TEST_EQUAL(fs.file_size(file_index_t(1)), 1);
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TEST_EQUAL(fs.file_name(file_index_t(1)), "1");
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TEST_EQUAL(fs.pad_file_at(file_index_t(1)), false);
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TEST_EQUAL(fs.file_size(file_index_t(2)), 1024 - (1001 + 1));
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TEST_EQUAL(fs.pad_file_at(file_index_t(2)), true);
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TEST_EQUAL(fs.file_size(file_index_t(3)), 1000);
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TEST_EQUAL(fs.file_name(file_index_t(3)), "2");
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TEST_EQUAL(fs.pad_file_at(file_index_t(3)), false);
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}
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TORRENT_TEST(piece_range_exclusive)
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{
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int const piece_size = 16;
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file_storage fs;
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fs.set_piece_length(piece_size);
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fs.add_file(combine_path("temp_storage", "0"), piece_size);
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fs.add_file(combine_path("temp_storage", "1"), piece_size * 4 + 1);
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fs.add_file(combine_path("temp_storage", "2"), piece_size * 4 - 1);
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fs.set_num_pieces(int((fs.total_size() + piece_size - 1) / piece_size));
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// +---+---+---+---+---+---+---+---+---+
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// pieces | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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// +---+---+---+---+---+---+---+---+---+
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// files | 0 | 1 | 2 |
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// +---+----------------+--------------+
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TEST_CHECK(aux::file_piece_range_exclusive(fs, file_index_t(0)) == std::make_tuple(piece_index_t(0), piece_index_t(1)));
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TEST_CHECK(aux::file_piece_range_exclusive(fs, file_index_t(1)) == std::make_tuple(piece_index_t(1), piece_index_t(5)));
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TEST_CHECK(aux::file_piece_range_exclusive(fs, file_index_t(2)) == std::make_tuple(piece_index_t(6), piece_index_t(9)));
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}
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TORRENT_TEST(piece_range_inclusive)
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{
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int const piece_size = 16;
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file_storage fs;
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fs.set_piece_length(piece_size);
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fs.add_file(combine_path("temp_storage", "0"), piece_size);
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fs.add_file(combine_path("temp_storage", "1"), piece_size * 4 + 1);
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fs.add_file(combine_path("temp_storage", "2"), piece_size * 4 - 1);
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fs.set_num_pieces(int((fs.total_size() + piece_size - 1) / piece_size));
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// +---+---+---+---+---+---+---+---+---+
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// pieces | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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// +---+---+---+---+---+---+---+---+---+
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// files | 0 | 1 | 2 |
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// +---+----------------+--------------+
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TEST_CHECK(aux::file_piece_range_inclusive(fs, file_index_t(0)) == std::make_tuple(piece_index_t(0), piece_index_t(1)));
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TEST_CHECK(aux::file_piece_range_inclusive(fs, file_index_t(1)) == std::make_tuple(piece_index_t(1), piece_index_t(6)));
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TEST_CHECK(aux::file_piece_range_inclusive(fs, file_index_t(2)) == std::make_tuple(piece_index_t(5), piece_index_t(9)));
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}
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TORRENT_TEST(piece_range)
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{
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int const piece_size = 0x4000;
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file_storage fs;
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fs.set_piece_length(piece_size);
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fs.add_file(combine_path("temp_storage", "0"), piece_size * 3);
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fs.add_file(combine_path("temp_storage", "1"), piece_size * 3 + 0x30);
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fs.set_num_pieces(int((fs.total_size() + piece_size - 1) / piece_size));
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// +---+---+---+---+---+---+---+
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// pieces | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
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// +---+---+---+---+---+---+---+
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// files | 0 | 1 |
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// +---+-------+------------+
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TEST_CHECK(aux::file_piece_range_inclusive(fs, file_index_t(0)) == std::make_tuple(piece_index_t(0), piece_index_t(3)));
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TEST_CHECK(aux::file_piece_range_inclusive(fs, file_index_t(1)) == std::make_tuple(piece_index_t(3), piece_index_t(7)));
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TEST_CHECK(aux::file_piece_range_exclusive(fs, file_index_t(0)) == std::make_tuple(piece_index_t(0), piece_index_t(3)));
|
|
TEST_CHECK(aux::file_piece_range_exclusive(fs, file_index_t(1)) == std::make_tuple(piece_index_t(3), piece_index_t(7)));
|
|
}
|
|
|
|
void test_optimize(std::vector<int> file_sizes
|
|
, int const alignment
|
|
, int const pad_file_limit
|
|
, bool const tail_padding
|
|
, std::vector<int> const expected_order)
|
|
{
|
|
file_storage fs;
|
|
int i = 0;
|
|
for (int s : file_sizes)
|
|
{
|
|
fs.add_file(combine_path("test", std::to_string(i++)), s);
|
|
}
|
|
fs.optimize(pad_file_limit, alignment, tail_padding);
|
|
|
|
TEST_EQUAL(fs.num_files(), int(expected_order.size()));
|
|
if (fs.num_files() != int(expected_order.size())) return;
|
|
|
|
file_index_t idx{0};
|
|
int num_pad_files = 0;
|
|
std::cout << "{ ";
|
|
for (file_index_t i{0}; i != fs.end_file(); ++i)
|
|
{
|
|
if (fs.file_flags(i) & file_storage::flag_pad_file) std::cout << "*";
|
|
std::cout << fs.file_size(i) << " ";
|
|
}
|
|
std::cout << "}\n";
|
|
for (int expect : expected_order)
|
|
{
|
|
if (expect == -1)
|
|
{
|
|
TEST_CHECK(fs.file_flags(idx) & file_storage::flag_pad_file);
|
|
TEST_EQUAL(fs.file_name(idx), std::to_string(num_pad_files++));
|
|
}
|
|
else
|
|
{
|
|
TEST_EQUAL(fs.file_name(idx), std::to_string(expect));
|
|
TEST_EQUAL(fs.file_size(idx), file_sizes[expect]);
|
|
}
|
|
++idx;
|
|
}
|
|
}
|
|
|
|
TORRENT_TEST(optimize_order_large_first)
|
|
{
|
|
test_optimize({1000, 3000, 10000}, 1024, 1024, false, {2, -1, 1, 0});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_tail_padding2)
|
|
{
|
|
// when tail padding is enabled, a pad file is added at the end
|
|
test_optimize({2000}, 1024, 1024, true, {0, -1});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_tail_padding3)
|
|
{
|
|
// when tail padding is enabled, a pad file is added at the end, even if the
|
|
// file is smaller than the alignment, as long as pad_file_limit is 0 *(which
|
|
// means files are aligned unconditionally)
|
|
test_optimize({1000}, 1024, 0, true, {0, -1});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_tail_padding_small_files)
|
|
{
|
|
// files smaller than the pad file limit are not tail-padded
|
|
test_optimize({1000, 1, 2}, 1024, 50, true, {0, -1, 2, 1});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_tail_padding_small_files2)
|
|
{
|
|
// files larger than the pad file limit are not tail-padded
|
|
test_optimize({1000, 1, 2}, 1024, 0, true, {0, -1, 2, -1, 1, -1});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_prioritize_aligned_size)
|
|
{
|
|
// file 0 of size 1024 will be chosen over the larger file, since it won't
|
|
// affect the alignment of the next file
|
|
test_optimize({1024, 3000, 10}, 1024, 1024, false, {0, 1, 2});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_fill_with_small_files)
|
|
{
|
|
// fill in space that otherwise would just be a pad file with other small
|
|
// files.
|
|
test_optimize({2000, 5000, 48, 120}, 1024, 1024, false, {1, 3, 0, 2});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_pad_all)
|
|
{
|
|
// when pad_size_limit is 0, every file is padded to alignment, regardless of
|
|
// how big it is
|
|
// the empty file is first, since it doesn't affect alignment of the next
|
|
// file
|
|
test_optimize({48, 1, 0, 5000}, 1024, 0, false, {2, 3, -1, 0, -1, 1});
|
|
}
|
|
|
|
TORRENT_TEST(optimize_pad_all_with_tail)
|
|
{
|
|
// when pad_size_limit is 0, every file is padded to alignment, regardless of
|
|
// how big it is, also with tail-padding enabled
|
|
test_optimize({48, 1, 0, 5000}, 1024, 0, true, {2, 3, -1, 0, -1, 1, -1});
|
|
}
|
|
|
|
TORRENT_TEST(piece_size_last_piece)
|
|
{
|
|
file_storage fs;
|
|
fs.set_piece_length(1024);
|
|
fs.add_file("0", 100);
|
|
fs.set_num_pieces(int((fs.total_size() + 1023) / 1024));
|
|
TEST_EQUAL(fs.piece_size(piece_index_t{0}), 100);
|
|
}
|
|
|
|
TORRENT_TEST(piece_size_middle_piece)
|
|
{
|
|
file_storage fs;
|
|
fs.set_piece_length(1024);
|
|
fs.add_file("0", 2000);
|
|
fs.set_num_pieces(int((fs.total_size() + 1023) / 1024));
|
|
TEST_EQUAL(fs.piece_size(piece_index_t{0}), 1024);
|
|
TEST_EQUAL(fs.piece_size(piece_index_t{1}), 2000 - 1024);
|
|
}
|
|
|
|
TORRENT_TEST(file_index_at_offset)
|
|
{
|
|
file_storage fs;
|
|
fs.set_piece_length(1024);
|
|
fs.add_file("test/0", 1);
|
|
fs.add_file("test/1", 2);
|
|
fs.add_file("test/2", 3);
|
|
fs.add_file("test/3", 4);
|
|
fs.add_file("test/4", 5);
|
|
std::int64_t offset = 0;
|
|
for (int f : {0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4})
|
|
{
|
|
TEST_EQUAL(fs.file_index_at_offset(offset++), file_index_t{f});
|
|
}
|
|
}
|
|
|
|
TORRENT_TEST(map_block_start)
|
|
{
|
|
file_storage fs;
|
|
fs.set_piece_length(1024);
|
|
fs.add_file("test/0", 1);
|
|
fs.add_file("test/1", 2);
|
|
fs.add_file("test/2", 3);
|
|
fs.add_file("test/3", 4);
|
|
fs.add_file("test/4", 5);
|
|
fs.set_num_pieces(int((fs.total_size() + 1023) / 1024));
|
|
int len = 0;
|
|
for (int f : {0, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5})
|
|
{
|
|
std::vector<file_slice> const map = fs.map_block(piece_index_t{0}, 0, len);
|
|
TEST_EQUAL(int(map.size()), f);
|
|
file_index_t file_index{0};
|
|
std::int64_t actual_len = 0;
|
|
for (auto file : map)
|
|
{
|
|
TEST_EQUAL(file.file_index, file_index++);
|
|
TEST_EQUAL(file.offset, 0);
|
|
actual_len += file.size;
|
|
}
|
|
TEST_EQUAL(actual_len, len);
|
|
++len;
|
|
}
|
|
}
|
|
|
|
TORRENT_TEST(map_block_mid)
|
|
{
|
|
file_storage fs;
|
|
fs.set_piece_length(1024);
|
|
fs.add_file("test/0", 1);
|
|
fs.add_file("test/1", 2);
|
|
fs.add_file("test/2", 3);
|
|
fs.add_file("test/3", 4);
|
|
fs.add_file("test/4", 5);
|
|
fs.set_num_pieces(int((fs.total_size() + 1023) / 1024));
|
|
int offset = 0;
|
|
for (int f : {0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4})
|
|
{
|
|
std::vector<file_slice> const map = fs.map_block(piece_index_t{0}, offset, 1);
|
|
TEST_EQUAL(int(map.size()), 1);
|
|
auto const& file = map[0];
|
|
TEST_EQUAL(file.file_index, file_index_t{f});
|
|
TEST_CHECK(file.offset <= offset);
|
|
TEST_EQUAL(file.size, 1);
|
|
++offset;
|
|
}
|
|
}
|
|
|
|
// TODO: test file attributes
|
|
// TODO: test symlinks
|
|
// TODO: test reorder_file (make sure internal_file_entry::swap() is used)
|
|
|