forked from premiere/premiere-libtorrent
739 lines
26 KiB
C++
739 lines
26 KiB
C++
#include "libtorrent/piece_picker.hpp"
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#include "libtorrent/policy.hpp"
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#include <boost/shared_ptr.hpp>
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#include <boost/bind.hpp>
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#include <algorithm>
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#include <vector>
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#include <set>
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#include "test.hpp"
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using namespace libtorrent;
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const int blocks_per_piece = 4;
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std::vector<bool> string2vec(char const* have_str)
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{
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const int num_pieces = strlen(have_str);
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std::vector<bool> have(num_pieces, false);
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for (int i = 0; i < num_pieces; ++i)
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if (have_str[i] != ' ') have[i] = true;
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return have;
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}
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// availability is a string where each character is the
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// availability of that piece, '1', '2' etc.
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// have_str is a string where each character represents a
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// piece, ' ' means we don't have the piece and any other
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// character means we have it
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boost::shared_ptr<piece_picker> setup_picker(
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char const* availability
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, char const* have_str
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, char const* priority
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, char const* partial)
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{
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const int num_pieces = strlen(availability);
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assert(int(strlen(have_str)) == num_pieces);
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boost::shared_ptr<piece_picker> p(new piece_picker(blocks_per_piece, num_pieces * blocks_per_piece));
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std::vector<bool> have = string2vec(have_str);
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std::vector<piece_picker::downloading_piece> unfinished;
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piece_picker::downloading_piece pp;
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std::vector<piece_picker::block_info> blocks(blocks_per_piece * num_pieces);
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for (int i = 0; i < num_pieces; ++i)
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{
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if (partial[i] == 0) break;
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if (partial[i] == ' ') continue;
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pp.index = i;
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pp.info = &blocks[i * blocks_per_piece];
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int blocks = 0;
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if (partial[i] >= '0' && partial[i] <= '9')
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blocks = partial[i] - '0';
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else
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blocks = partial[i] - 'a' + 10;
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if (blocks & 1)
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pp.info[0].state = piece_picker::block_info::state_finished;
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if (blocks & 2)
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pp.info[1].state = piece_picker::block_info::state_finished;
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if (blocks & 4)
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pp.info[2].state = piece_picker::block_info::state_finished;
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if (blocks & 8)
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pp.info[3].state = piece_picker::block_info::state_finished;
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unfinished.push_back(pp);
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}
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for (int i = 0; i < num_pieces; ++i)
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{
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if (priority[i] == 0) break;
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const int prio = priority[i] - '0';
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assert(prio >= 0);
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p->set_piece_priority(i, prio);
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TEST_CHECK(p->piece_priority(i) == prio);
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}
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std::vector<int> verify_pieces;
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p->files_checked(have, unfinished, verify_pieces);
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for (std::vector<piece_picker::downloading_piece>::iterator i = unfinished.begin()
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, end(unfinished.end()); i != end; ++i)
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{
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for (int j = 0; j < blocks_per_piece; ++j)
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TEST_CHECK(p->is_finished(piece_block(i->index, j)) == (i->info[j].state == piece_picker::block_info::state_finished));
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piece_picker::downloading_piece st;
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p->piece_info(i->index, st);
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TEST_CHECK(st.writing == 0);
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TEST_CHECK(st.requested == 0);
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TEST_CHECK(st.index == i->index);
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int counter = 0;
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for (int j = 0; j < blocks_per_piece; ++j)
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if (i->info[j].state == piece_picker::block_info::state_finished) ++counter;
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TEST_CHECK(st.finished == counter);
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}
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for (int i = 0; i < num_pieces; ++i)
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{
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if (!have[i]) continue;
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for (int j = 0; j < blocks_per_piece; ++j)
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TEST_CHECK(p->is_finished(piece_block(i, j)));
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}
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for (int i = 0; i < num_pieces; ++i)
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{
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const int avail = availability[i] - '0';
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assert(avail >= 0);
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for (int j = 0; j < avail; ++j) p->inc_refcount(i);
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}
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std::vector<int> availability_vec;
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p->get_availability(availability_vec);
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for (int i = 0; i < num_pieces; ++i)
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{
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const int avail = availability[i] - '0';
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assert(avail >= 0);
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TEST_CHECK(avail == availability_vec[i]);
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}
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#ifndef NDEBUG
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p->check_invariant();
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#endif
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return p;
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}
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bool verify_pick(boost::shared_ptr<piece_picker> p
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, std::vector<piece_block> const& picked)
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{
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#ifndef NDEBUG
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p->check_invariant();
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#endif
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for (std::vector<piece_block>::const_iterator i = picked.begin()
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, end(picked.end()); i != end; ++i)
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{
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if (p->num_peers(*i) > 0) return false;
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}
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// make sure there are no duplicated
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std::set<piece_block> blocks;
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std::copy(picked.begin(), picked.end(), std::insert_iterator<std::set<piece_block> >(blocks, blocks.end()));
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return picked.size() == blocks.size();
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}
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void print_pick(std::vector<piece_block> const& picked)
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{
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for (int i = 0; i < int(picked.size()); ++i)
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{
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std::cout << "(" << picked[i].piece_index << ", " << picked[i].block_index << ") ";
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}
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std::cout << std::endl;
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}
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int test_main()
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{
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tcp::endpoint endp;
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policy::peer peer_struct(endp, policy::peer::connectable, 0);
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std::vector<piece_block> picked;
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boost::shared_ptr<piece_picker> p;
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const std::vector<int> empty_vector;
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// make sure the block that is picked is from piece 1, since it
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// it is the piece with the lowest availability
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p = setup_picker("2223333", "* * * ", "", "");
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) > 0);
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TEST_CHECK(picked.front().piece_index == 1);
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// ========================================================
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// make sure the block that is picked is from piece 5, since it
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// has the highest priority among the available pieces
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p = setup_picker("1111111", "* * * ", "1111122", "");
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picked.clear();
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p->pick_pieces(string2vec("****** "), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) > 0);
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TEST_CHECK(picked.front().piece_index == 5);
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// ========================================================
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// make sure the 4 blocks are picked from the same piece if
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// whole pieces are preferred. The only whole piece is 1.
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p = setup_picker("1111111", " ", "1111111", "1023460");
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picked.clear();
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p->pick_pieces(string2vec("****** "), picked, 1, 1, &peer_struct, piece_picker::fast, true, true, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= blocks_per_piece);
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for (int i = 0; i < blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == 1);
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// ========================================================
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// test the distributed copies function. It should include ourself
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// in the availability. i.e. piece 0 has availability 2.
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// there are 2 pieces with availability 2 and 5 with availability 3
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p = setup_picker("1233333", "* ", "", "");
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float dc = p->distributed_copies();
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TEST_CHECK(fabs(dc - (2.f + 5.f / 7.f)) < 0.01f);
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// ========================================================
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// make sure filtered pieces are ignored
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p = setup_picker("1111111", " ", "0010000", "");
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picked.clear();
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p->pick_pieces(string2vec("*** ** "), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) > 0);
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TEST_CHECK(picked.front().piece_index == 2);
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// ========================================================
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// make sure requested blocks aren't picked
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p = setup_picker("1234567", " ", "", "");
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) > 0);
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TEST_CHECK(picked.front().piece_index == 0);
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piece_block first = picked.front();
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p->mark_as_downloading(picked.front(), &peer_struct, piece_picker::fast);
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TEST_CHECK(p->num_peers(picked.front()) == 1);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) > 0);
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TEST_CHECK(picked.front() != first);
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TEST_CHECK(picked.front().piece_index == 0);
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// ========================================================
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// test sequenced download
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p = setup_picker("7654321", " ", "", "");
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picked.clear();
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p->set_sequenced_download_threshold(3);
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p->pick_pieces(string2vec("***** "), picked, 5 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 5 * blocks_per_piece);
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for (int i = 0; i < 5 * blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == i / blocks_per_piece);
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picked.clear();
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p->set_sequenced_download_threshold(4);
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p->pick_pieces(string2vec("**** "), picked, 5 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 4 * blocks_per_piece);
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for (int i = 0; i < 4 * blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == i / blocks_per_piece);
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picked.clear();
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p->set_sequenced_download_threshold(2);
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p->pick_pieces(string2vec("****** "), picked, 6 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 6 * blocks_per_piece);
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for (int i = 0; i < 6 * blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == i / blocks_per_piece);
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picked.clear();
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p->set_piece_priority(0, 0);
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p->pick_pieces(string2vec("****** "), picked, 6 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 5 * blocks_per_piece);
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for (int i = 0; i < 5 * blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == i / blocks_per_piece + 1);
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picked.clear();
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p->set_piece_priority(0, 1);
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p->pick_pieces(string2vec("****** "), picked, 6 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 6 * blocks_per_piece);
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for (int i = 0; i < 6 * blocks_per_piece && i < int(picked.size()); ++i)
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TEST_CHECK(picked[i].piece_index == i / blocks_per_piece);
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// ========================================================
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// test piece priorities
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p = setup_picker("5555555", " ", "3214576", "");
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TEST_CHECK(p->num_filtered() == 0);
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TEST_CHECK(p->num_have_filtered() == 0);
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p->set_piece_priority(0, 0);
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TEST_CHECK(p->num_filtered() == 1);
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TEST_CHECK(p->num_have_filtered() == 0);
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p->mark_as_finished(piece_block(0,0), 0);
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p->we_have(0);
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TEST_CHECK(p->num_filtered() == 0);
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TEST_CHECK(p->num_have_filtered() == 1);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 6 * blocks_per_piece, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 6 * blocks_per_piece);
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TEST_CHECK(picked[0 * blocks_per_piece].piece_index == 5);
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// priority 5 and 6 is currently the same
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TEST_CHECK(picked[1 * blocks_per_piece].piece_index == 6 || picked[1 * blocks_per_piece].piece_index == 4);
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TEST_CHECK(picked[2 * blocks_per_piece].piece_index == 6 || picked[2 * blocks_per_piece].piece_index == 4);
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TEST_CHECK(picked[3 * blocks_per_piece].piece_index == 3);
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TEST_CHECK(picked[4 * blocks_per_piece].piece_index == 1);
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TEST_CHECK(picked[5 * blocks_per_piece].piece_index == 2);
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std::vector<int> prios;
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p->piece_priorities(prios);
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TEST_CHECK(prios.size() == 7);
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int prio_comp[] = {0, 2, 1, 4, 5, 7, 6};
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TEST_CHECK(std::equal(prios.begin(), prios.end(), prio_comp));
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// ========================================================
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// test restore_piece
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p = setup_picker("1234567", " ", "", "");
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p->mark_as_finished(piece_block(0,0), 0);
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p->mark_as_finished(piece_block(0,1), 0);
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p->mark_as_finished(piece_block(0,2), 0);
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p->mark_as_finished(piece_block(0,3), 0);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= 1);
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TEST_CHECK(picked.front().piece_index == 1);
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p->restore_piece(0);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= 1);
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TEST_CHECK(picked.front().piece_index == 0);
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p->mark_as_finished(piece_block(0,0), 0);
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p->mark_as_finished(piece_block(0,1), 0);
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p->mark_as_finished(piece_block(0,2), 0);
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p->mark_as_finished(piece_block(0,3), 0);
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p->set_piece_priority(0, 0);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= 1);
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TEST_CHECK(picked.front().piece_index == 1);
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p->restore_piece(0);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= 1);
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TEST_CHECK(picked.front().piece_index == 1);
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p->set_piece_priority(0, 1);
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picked.clear();
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p->pick_pieces(string2vec("*******"), picked, 1, false, 0, piece_picker::fast, true, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) >= 1);
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TEST_CHECK(picked.front().piece_index == 0);
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// ========================================================
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// test non-rarest-first mode
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p = setup_picker("1234567", "* * * ", "1111122", "");
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picked.clear();
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p->pick_pieces(string2vec("****** "), picked, 5 * blocks_per_piece, false, 0, piece_picker::fast, false, false, empty_vector);
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print_pick(picked);
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TEST_CHECK(verify_pick(p, picked));
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TEST_CHECK(int(picked.size()) == 3 * blocks_per_piece);
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for (int i = 0; i < 4 * blocks_per_piece && i < int(picked.size()); ++i)
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{
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TEST_CHECK(picked[i].piece_index != 0);
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TEST_CHECK(picked[i].piece_index != 2);
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TEST_CHECK(picked[i].piece_index != 4);
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}
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// ========================================================
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// test have_all and have_none
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p = setup_picker("0123333", "* ", "", "");
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dc = p->distributed_copies();
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std::cout << "distributed copies: " << dc << std::endl;
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TEST_CHECK(fabs(dc - (1.f + 5.f / 7.f)) < 0.01f);
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p->inc_refcount_all();
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dc = p->distributed_copies();
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std::cout << "distributed copies: " << dc << std::endl;
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TEST_CHECK(fabs(dc - (2.f + 5.f / 7.f)) < 0.01f);
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p->dec_refcount_all();
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dc = p->distributed_copies();
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std::cout << "distributed copies: " << dc << std::endl;
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TEST_CHECK(fabs(dc - (1.f + 5.f / 7.f)) < 0.01f);
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// ========================================================
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// test have_all and have_none, with a sequenced download threshold
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p = setup_picker("1233333", "* ", "", "");
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p->set_sequenced_download_threshold(3);
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p->inc_refcount_all();
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dc = p->distributed_copies();
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TEST_CHECK(fabs(dc - (3.f + 5.f / 7.f)) < 0.01f);
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p->dec_refcount_all();
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dc = p->distributed_copies();
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TEST_CHECK(fabs(dc - (2.f + 5.f / 7.f)) < 0.01f);
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p->dec_refcount(2);
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dc = p->distributed_copies();
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TEST_CHECK(fabs(dc - (2.f + 4.f / 7.f)) < 0.01f);
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p->mark_as_downloading(piece_block(1,0), &peer_struct, piece_picker::fast);
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p->mark_as_downloading(piece_block(1,1), &peer_struct, piece_picker::fast);
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p->we_have(1);
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dc = p->distributed_copies();
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TEST_CHECK(fabs(dc - (2.f + 5.f / 7.f)) < 0.01f);
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picked.clear();
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// make sure it won't pick the piece we just got
|
|
p->pick_pieces(string2vec(" * ****"), picked, 100, false, 0, piece_picker::fast, true, false, empty_vector);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= 4 * blocks_per_piece);
|
|
TEST_CHECK(picked[0 * blocks_per_piece].piece_index == 3);
|
|
TEST_CHECK(picked[1 * blocks_per_piece].piece_index == 4);
|
|
TEST_CHECK(picked[2 * blocks_per_piece].piece_index == 5);
|
|
TEST_CHECK(picked[3 * blocks_per_piece].piece_index == 6);
|
|
|
|
// ========================================================
|
|
|
|
// test unverified_blocks, marking blocks and get_downloader
|
|
p = setup_picker("1111111", " ", "", "0300700");
|
|
TEST_CHECK(p->unverified_blocks() == 2 + 3);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 0)) == 0);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 1)) == 0);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 2)) == 0);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 3)) == 0);
|
|
p->mark_as_downloading(piece_block(4, 3), &peer_struct, piece_picker::fast);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 3)) == &peer_struct);
|
|
piece_picker::downloading_piece st;
|
|
p->piece_info(4, st);
|
|
TEST_CHECK(st.requested == 1);
|
|
TEST_CHECK(st.writing == 0);
|
|
TEST_CHECK(st.finished == 3);
|
|
TEST_CHECK(p->unverified_blocks() == 2 + 3);
|
|
p->mark_as_writing(piece_block(4, 3), &peer_struct);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 3)) == &peer_struct);
|
|
p->piece_info(4, st);
|
|
TEST_CHECK(st.requested == 0);
|
|
TEST_CHECK(st.writing == 1);
|
|
TEST_CHECK(st.finished == 3);
|
|
TEST_CHECK(p->unverified_blocks() == 2 + 3);
|
|
p->mark_as_finished(piece_block(4, 3), &peer_struct);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 3)) == &peer_struct);
|
|
p->piece_info(4, st);
|
|
TEST_CHECK(st.requested == 0);
|
|
TEST_CHECK(st.writing == 0);
|
|
TEST_CHECK(st.finished == 4);
|
|
TEST_CHECK(p->unverified_blocks() == 2 + 4);
|
|
p->we_have(4);
|
|
p->piece_info(4, st);
|
|
TEST_CHECK(st.requested == 0);
|
|
TEST_CHECK(st.writing == 0);
|
|
TEST_CHECK(st.finished == 4);
|
|
TEST_CHECK(p->get_downloader(piece_block(4, 3)) == 0);
|
|
TEST_CHECK(p->unverified_blocks() == 2);
|
|
|
|
// ========================================================
|
|
|
|
// test prefer_whole_pieces
|
|
p = setup_picker("1111111", " ", "", "");
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("*******"), picked, 1, 3, 0, piece_picker::fast, true, false, empty_vector);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= 3 * blocks_per_piece);
|
|
piece_block b = picked.front();
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index * blocks_per_piece + picked[i].block_index
|
|
== b.piece_index * blocks_per_piece + b.block_index + 1);
|
|
b = picked[i];
|
|
}
|
|
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("*******"), picked, 1, 3, 0, piece_picker::fast, false, false, empty_vector);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= 3 * blocks_per_piece);
|
|
b = picked.front();
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index * blocks_per_piece + picked[i].block_index
|
|
== b.piece_index * blocks_per_piece + b.block_index + 1);
|
|
b = picked[i];
|
|
}
|
|
|
|
// ========================================================
|
|
|
|
// test parole mode
|
|
p = setup_picker("3333133", " ", "", "");
|
|
p->mark_as_finished(piece_block(0, 0), 0);
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("*******"), picked, 1, 1, 0, piece_picker::fast, true, true, empty_vector);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= blocks_per_piece - 1);
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index == 0);
|
|
TEST_CHECK(picked[i].block_index == i + 1);
|
|
}
|
|
|
|
// make sure that the partial piece is not picked by a
|
|
// peer that is has not downloaded/requested the other blocks
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("*******"), picked, 1, 1, &peer_struct, piece_picker::fast, true, true, empty_vector);
|
|
print_pick(picked);
|
|
TEST_CHECK(int(picked.size()) >= blocks_per_piece);
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index == 4);
|
|
TEST_CHECK(picked[i].block_index == i);
|
|
}
|
|
|
|
// ========================================================
|
|
|
|
// test suggested pieces
|
|
p = setup_picker("1111222233334444", " ", "", "");
|
|
int v[] = {1, 5};
|
|
std::vector<int> suggested_pieces(v, v + 2);
|
|
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("****************"), picked, 1, 1, 0, piece_picker::fast, true, true, suggested_pieces);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= blocks_per_piece);
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index == 1);
|
|
TEST_CHECK(picked[i].block_index == i);
|
|
}
|
|
p->set_piece_priority(0, 0);
|
|
p->set_piece_priority(1, 0);
|
|
p->set_piece_priority(2, 0);
|
|
p->set_piece_priority(3, 0);
|
|
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("****************"), picked, 1, 1, 0, piece_picker::fast, true, true, suggested_pieces);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= blocks_per_piece);
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index == 5);
|
|
TEST_CHECK(picked[i].block_index == i);
|
|
}
|
|
|
|
p = setup_picker("1111222233334444", "**** ", "", "");
|
|
picked.clear();
|
|
p->pick_pieces(string2vec("****************"), picked, 1, 1, 0, piece_picker::fast, true, true, suggested_pieces);
|
|
print_pick(picked);
|
|
TEST_CHECK(verify_pick(p, picked));
|
|
TEST_CHECK(int(picked.size()) >= blocks_per_piece);
|
|
for (int i = 1; i < int(picked.size()); ++i)
|
|
{
|
|
TEST_CHECK(picked[i].piece_index == 5);
|
|
TEST_CHECK(picked[i].block_index == i);
|
|
}
|
|
|
|
// MISSING TESTS:
|
|
// 2. inc_ref() from 0 to 1 while sequenced download threshold is 1
|
|
// 4. filtered_pieces
|
|
// 5. clear peer
|
|
// 6. pick_pieces with prefer whole pieces
|
|
// 7. is_requested
|
|
// 8. is_downloaded
|
|
// 9. get_downloaders
|
|
// 10. abort_download
|
|
|
|
/*
|
|
|
|
p.pick_pieces(peer1, picked, 1, false, 0, piece_picker::fast, true);
|
|
TEST_CHECK(int(picked.size()) == 1);
|
|
TEST_CHECK(picked.front().piece_index == 2);
|
|
|
|
// now pick a piece from peer2. The block is supposed to be
|
|
// from piece 3, since it is the rarest piece that peer has.
|
|
picked.clear();
|
|
p.pick_pieces(peer2, picked, 1, false, 0, piece_picker::fast, true);
|
|
TEST_CHECK(int(picked.size()) == 1);
|
|
TEST_CHECK(picked.front().piece_index == 3);
|
|
|
|
// same thing for peer3.
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer3, picked, 1, false, 0, piece_picker::fast, true);
|
|
TEST_CHECK(int(picked.size()) == 1);
|
|
TEST_CHECK(picked.front().piece_index == 5);
|
|
|
|
// now, if all peers would have piece 1 (the piece we have partially)
|
|
// it should be prioritized over picking a completely new piece.
|
|
peer3[1] = true;
|
|
p.inc_refcount(1);
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer3, picked, 1, false, 0, piece_picker::fast, true);
|
|
TEST_CHECK(int(picked.size()) == 1);
|
|
TEST_CHECK(picked.front().piece_index == 1);
|
|
// and the block picked should not be 0 or 2
|
|
// since we already have those blocks
|
|
|
|
TEST_CHECK(picked.front().block_index != 0);
|
|
TEST_CHECK(picked.front().block_index != 2);
|
|
|
|
// now, if we mark piece 1 and block 0 in piece 2
|
|
// as being downloaded and picks a block from peer1,
|
|
// it should pick a block from piece 2. But since
|
|
// block 0 is marked as requested from another peer,
|
|
// the piece_picker will continue to pick blocks
|
|
// until it can return at least 1 block (since we
|
|
// tell it we want one block) that is not being
|
|
// downloaded from anyone else. This is to make it
|
|
// possible for us to determine if we want to request
|
|
// the block from more than one peer.
|
|
// Both piece 1 and 2 are partial pieces, but pice
|
|
// 2 is the rarest, so that's why it is picked.
|
|
|
|
// we have block 0 and 2 already, so we can't mark
|
|
// them as begin downloaded.
|
|
p.mark_as_downloading(piece_block(1, 1), &peer_struct, piece_picker::fast);
|
|
p.mark_as_downloading(piece_block(1, 3), &peer_struct, piece_picker::fast);
|
|
p.mark_as_downloading(piece_block(2, 0), &peer_struct, piece_picker::fast);
|
|
|
|
std::vector<piece_picker::downloading_piece> const& downloads = p.get_download_queue();
|
|
TEST_CHECK(downloads.size() == 2);
|
|
TEST_CHECK(downloads[0].index == 1);
|
|
TEST_CHECK(downloads[0].info[0].state == piece_picker::block_info::state_finished);
|
|
TEST_CHECK(downloads[0].info[1].state == piece_picker::block_info::state_requested);
|
|
TEST_CHECK(downloads[0].info[2].state == piece_picker::block_info::state_finished);
|
|
TEST_CHECK(downloads[0].info[3].state == piece_picker::block_info::state_requested);
|
|
|
|
TEST_CHECK(downloads[1].index == 2);
|
|
TEST_CHECK(downloads[1].info[0].state == piece_picker::block_info::state_requested);
|
|
TEST_CHECK(downloads[1].info[1].state == piece_picker::block_info::state_none);
|
|
TEST_CHECK(downloads[1].info[2].state == piece_picker::block_info::state_none);
|
|
TEST_CHECK(downloads[1].info[3].state == piece_picker::block_info::state_none);
|
|
|
|
TEST_CHECK(p.is_requested(piece_block(1, 1)));
|
|
TEST_CHECK(p.is_requested(piece_block(1, 3)));
|
|
TEST_CHECK(p.is_requested(piece_block(2, 0)));
|
|
TEST_CHECK(!p.is_requested(piece_block(2, 1)));
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer1, picked, 1, false, 0, piece_picker::fast, true);
|
|
TEST_CHECK(int(picked.size()) == 2);
|
|
|
|
piece_block expected3[] = { piece_block(2, 0), piece_block(2, 1) };
|
|
TEST_CHECK(std::equal(picked.begin()
|
|
, picked.end(), expected3));
|
|
|
|
// now, if we assume we're downloading at such a speed that
|
|
// we might prefer to download whole pieces at a time from
|
|
// this peer. It should not pick piece 1 or 2 (since those are
|
|
// partially selected)
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer1, picked, 1, true, 0, piece_picker::fast, true);
|
|
|
|
// it will pick 4 blocks, since we said we
|
|
// wanted whole pieces.
|
|
TEST_CHECK(int(picked.size()) == 4);
|
|
|
|
piece_block expected4[] =
|
|
{
|
|
piece_block(3, 0), piece_block(3, 1)
|
|
, piece_block(3, 2), piece_block(3, 3)
|
|
};
|
|
|
|
TEST_CHECK(std::equal(picked.begin()
|
|
, picked.end(), expected4));
|
|
|
|
// now, try the same thing, but pick as many pieces as possible
|
|
// to make sure it can still fall back on partial pieces
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer1, picked, 100, true, 0, piece_picker::fast, true);
|
|
|
|
TEST_CHECK(int(picked.size()) == 12);
|
|
|
|
piece_block expected5[] =
|
|
{
|
|
piece_block(3, 0), piece_block(3, 1)
|
|
, piece_block(3, 2), piece_block(3, 3)
|
|
, piece_block(5, 0), piece_block(5, 1)
|
|
, piece_block(5, 2), piece_block(5, 3)
|
|
, piece_block(2, 0), piece_block(2, 1)
|
|
, piece_block(2, 2), piece_block(2, 3)
|
|
};
|
|
|
|
TEST_CHECK(std::equal(picked.begin()
|
|
, picked.end(), expected5));
|
|
|
|
// now, try the same thing, but pick as many pieces as possible
|
|
// to make sure it can still fall back on partial pieces
|
|
|
|
picked.clear();
|
|
p.pick_pieces(peer1, picked, 100, true, &peer_struct, piece_picker::fast, true);
|
|
|
|
TEST_CHECK(int(picked.size()) == 11);
|
|
|
|
piece_block expected6[] =
|
|
{
|
|
piece_block(2, 1), piece_block(2, 2)
|
|
, piece_block(2, 3)
|
|
, piece_block(3, 0), piece_block(3, 1)
|
|
, piece_block(3, 2), piece_block(3, 3)
|
|
, piece_block(5, 0), piece_block(5, 1)
|
|
, piece_block(5, 2), piece_block(5, 3)
|
|
};
|
|
|
|
TEST_CHECK(std::equal(picked.begin()
|
|
, picked.end(), expected6));
|
|
|
|
// make sure the piece picker allows filtered pieces
|
|
// to become available
|
|
p.mark_as_finished(piece_block(4, 2), 0);
|
|
*/
|
|
return 0;
|
|
}
|
|
|