fixed bug where a torrent would not get into the 'finished' state right after file checking. It would either go to downloading or seeding. Also added test_transfer

src/torrent.cpp

@@ -1800,7 +1800,6 @@ namespace libtorrent
 		INVARIANT_CHECK;
 
 		if (m_torrent_file->num_pieces() == 0) return;
-		bool was_finished = is_finished();
 
 		size_type position = 0;
 		int piece_length = m_torrent_file->piece_length();
@@ -1826,7 +1825,6 @@ namespace libtorrent
 				, bind(&set_if_greater, _1, m_file_priority[i]));
 		}
 		prioritize_pieces(pieces);
-		update_peer_interest(was_finished);
 	}
 
 	// this is called when piece priorities have been updated
@@ -1836,16 +1834,18 @@ namespace libtorrent
 		for (peer_iterator i = begin(); i != end(); ++i)
 			(*i)->update_interest();
 
-		// if we used to be finished, but we aren't anymore
-		// we may need to connect to peers again
-		if (!is_finished() && was_finished)
-			m_policy.recalculate_connect_candidates();
-	
 		// the torrent just became finished
 		if (is_finished() && !was_finished)
+		{
 			finished();
+		}
 		else if (!is_finished() && was_finished)
+		{
+			// if we used to be finished, but we aren't anymore
+			// we may need to connect to peers again
 			resume_download();
+			m_policy.recalculate_connect_candidates();
+		}
 	}
 
 	void torrent::filter_piece(int index, bool filter)
@@ -3265,6 +3265,12 @@ namespace libtorrent
 
 		set_state(torrent_status::downloading);
 
+		if (m_ses.m_alerts.should_post<torrent_checked_alert>())
+		{
+			m_ses.m_alerts.post_alert(torrent_checked_alert(
+				get_handle()));
+		}
+		
 		if (!is_seed())
 		{
 			if (m_sequential_download)
@@ -3274,6 +3280,13 @@ namespace libtorrent
 			// likely to be unpaused
 			if (m_ses.m_auto_manage_time_scaler > 1)
 				m_ses.m_auto_manage_time_scaler = 1;
+
+			if (is_finished()) finished();
+		}
+		else
+		{
+			m_complete_sent = true;
+			finished();
 		}
 
 #ifndef TORRENT_DISABLE_EXTENSIONS
@@ -3290,12 +3303,6 @@ namespace libtorrent
 		}
 #endif
 
-		if (is_seed())
-		{
-			m_complete_sent = true;
-			finished();
-		}
-
 		if (!m_connections_initialized)
 		{
 			m_connections_initialized = true;
@@ -3311,12 +3318,6 @@ namespace libtorrent
 			}
 		}
 
-		if (m_ses.m_alerts.should_post<torrent_checked_alert>())
-		{
-			m_ses.m_alerts.post_alert(torrent_checked_alert(
-				get_handle()));
-		}
-		
 		m_files_checked = true;
 
 		start_announcing();

test/Jamfile

@@ -34,6 +34,7 @@ test-suite libtorrent :
 	[ run test_buffer.cpp ]
 	[ run test_storage.cpp ]
 	[ run test_torrent.cpp ]
+	[ run test_transfer.cpp ]
 	[ run test_piece_picker.cpp ]
 #	[ run test_entry.cpp ]
 	[ run test_fast_extension.cpp ]

test/Makefile.am

@@ -1,7 +1,7 @@
 check_PROGRAMS = test_hasher test_bencoding test_ip_filter test_piece_picker \
 test_storage test_metadata_extension test_buffer test_swarm test_pe_crypto test_primitives \
 test_bandwidth_limiter test_upnp test_fast_extension test_pex test_web_seed \
-test_http_connection test_lsd
+test_http_connection test_torrent test_transfer test_lsd
 
 TESTS = $(check_PROGRAMS)
 
@@ -61,6 +61,9 @@ test_bandwidth_limiter_LDADD = $(top_builddir)/src/libtorrent-rasterbar.la
 test_torrent_SOURCES = main.cpp test_torrent.cpp
 test_torrent_LDADD = $(top_builddir)/src/libtorrent-rasterbar.la
 
+test_transfer_SOURCES = main.cpp test_transfer.cpp
+test_transfer_LDADD = $(top_builddir)/src/libtorrent-rasterbar.la
+
 noinst_HEADERS = test.hpp setup_transfer.hpp
 
 AM_CXXFLAGS=-ftemplate-depth-50 -I$(top_srcdir)/include -I$(top_srcdir)/include/libtorrent @DEBUGFLAGS@ @PTHREAD_CFLAGS@ -DBOOST_MULTI_INDEX_DISABLE_SERIALIZATION

test/setup_transfer.cpp

@@ -236,7 +236,8 @@ boost::intrusive_ptr<torrent_info> create_torrent(std::ostream* file, int piece_
 boost::tuple<torrent_handle, torrent_handle, torrent_handle>
 setup_transfer(session* ses1, session* ses2, session* ses3
 	, bool clear_files, bool use_metadata_transfer, bool connect_peers
-	, std::string suffix, int piece_size)
+	, std::string suffix, int piece_size
+	, boost::intrusive_ptr<torrent_info>* torrent)
 {
 	using namespace boost::filesystem;
 
@@ -247,18 +248,24 @@ setup_transfer(session* ses1, session* ses2, session* ses3
 	if (ses3)
 		assert(ses3->id() != ses2->id());
 
-	
+	boost::intrusive_ptr<torrent_info> t;
+	if (torrent == 0)
+	{
 		create_directory("./tmp1" + suffix);
 		std::ofstream file(("./tmp1" + suffix + "/temporary").c_str());
-	boost::intrusive_ptr<torrent_info> t = ::create_torrent(&file, piece_size);
+		t = ::create_torrent(&file, piece_size);
 		file.close();
 		if (clear_files)
 		{
 			remove_all("./tmp2" + suffix + "/temporary");
 			remove_all("./tmp3" + suffix + "/temporary");
 		}
-	
 		std::cerr << "generated torrent: " << t->info_hash() << std::endl;
+	}
+	else
+	{
+		t = *torrent;
+	}
 
 	ses1->set_severity_level(alert::debug);
 	ses2->set_severity_level(alert::debug);

test/setup_transfer.hpp

@@ -48,7 +48,8 @@ boost::tuple<libtorrent::torrent_handle, libtorrent::torrent_handle
 	, libtorrent::torrent_handle>
 setup_transfer(libtorrent::session* ses1, libtorrent::session* ses2
 	, libtorrent::session* ses3, bool clear_files, bool use_metadata_transfer = true
-	, bool connect = true, std::string suffix = "", int piece_size = 16 * 1024);
+	, bool connect = true, std::string suffix = "", int piece_size = 16 * 1024
+	, boost::intrusive_ptr<libtorrent::torrent_info>* torrent = 0);
 
 void start_web_server(int port, bool ssl = false);
 void stop_web_server(int port);

test/test_transfer.cpp

@@ -0,0 +1,198 @@
+/*
+
+Copyright (c) 2008, Arvid Norberg
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in
+      the documentation and/or other materials provided with the distribution.
+    * Neither the name of the author nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#include "libtorrent/session.hpp"
+#include "libtorrent/session_settings.hpp"
+#include "libtorrent/hasher.hpp"
+#include "libtorrent/alert_types.hpp"
+#include "libtorrent/bencode.hpp"
+#include <boost/thread.hpp>
+#include <boost/tuple/tuple.hpp>
+#include <boost/filesystem/operations.hpp>
+
+#include "test.hpp"
+#include "setup_transfer.hpp"
+
+using boost::filesystem::remove_all;
+using boost::filesystem::exists;
+using boost::filesystem::create_directory;
+
+void test_transfer()
+{
+	using namespace libtorrent;
+	using boost::tuples::ignore;
+
+	session ses1(fingerprint("LT", 0, 1, 0, 0), std::make_pair(48075, 49000));
+	session ses2(fingerprint("LT", 0, 1, 0, 0), std::make_pair(49075, 50000));
+
+#ifndef TORRENT_DISABLE_ENCRYPTION
+	pe_settings pes;
+	pes.out_enc_policy = pe_settings::forced;
+	pes.in_enc_policy = pe_settings::forced;
+	ses1.set_pe_settings(pes);
+	ses2.set_pe_settings(pes);
+#endif
+
+	torrent_handle tor1;
+	torrent_handle tor2;
+
+	create_directory("./tmp1_transfer");
+	std::ofstream file("./tmp1_transfer/temporary");
+	boost::intrusive_ptr<torrent_info> t = ::create_torrent(&file, 16 * 1024);
+	file.close();
+
+	// test using piece sizes smaller than 16kB
+	boost::tie(tor1, tor2, ignore) = setup_transfer(&ses1, &ses2, 0
+		, true, false, true, "_transfer", 8 * 1024, &t);	
+
+	// set half of the pieces to priority 0
+	int num_pieces = tor2.get_torrent_info().num_pieces();
+	std::vector<int> priorities(num_pieces, 1);
+	std::fill(priorities.begin(), priorities.begin() + num_pieces / 2, 0);
+	tor2.prioritize_pieces(priorities);
+
+	ses1.set_alert_mask(alert::all_categories & ~alert::progress_notification);
+	ses2.set_alert_mask(alert::all_categories & ~alert::progress_notification);
+
+	tor1.resume();
+	tor2.resume();
+
+	for (int i = 0; i < 30; ++i)
+	{
+		print_alerts(ses1, "ses1");
+		print_alerts(ses2, "ses2");
+
+		torrent_status st1 = tor1.status();
+		torrent_status st2 = tor2.status();
+
+		std::cerr
+			<< "\033[32m" << int(st1.download_payload_rate / 1000.f) << "kB/s "
+			<< "\033[33m" << int(st1.upload_payload_rate / 1000.f) << "kB/s "
+			<< "\033[0m" << int(st1.progress * 100) << "% "
+			<< st1.num_peers
+			<< ": "
+			<< "\033[32m" << int(st2.download_payload_rate / 1000.f) << "kB/s "
+			<< "\033[31m" << int(st2.upload_payload_rate / 1000.f) << "kB/s "
+			<< "\033[0m" << int(st2.progress * 100) << "% "
+			<< st2.num_peers
+			<< std::endl;
+
+		if (tor2.is_finished()) break;
+
+		TEST_CHECK(st1.state == torrent_status::seeding);
+		TEST_CHECK(st2.state == torrent_status::downloading);
+
+		test_sleep(1000);
+	}
+
+	TEST_CHECK(!tor2.is_seed());
+	std::cerr << "torrent is finished (50% complete)" << std::endl;
+
+	tor2.pause();
+	alert const* a = ses2.wait_for_alert(seconds(10));
+	while (a)
+	{
+		std::auto_ptr<alert> holder = ses2.pop_alert();
+		std::cerr << "ses2: " << a->message() << std::endl;
+		if (dynamic_cast<torrent_paused_alert const*>(a)) break;	
+		a = ses2.wait_for_alert(seconds(10));
+	}
+
+	tor2.save_resume_data();
+
+	std::vector<char> resume_data;
+	a = ses2.wait_for_alert(seconds(10));
+	while (a)
+	{
+		std::auto_ptr<alert> holder = ses2.pop_alert();
+		std::cerr << "ses2: " << a->message() << std::endl;
+		if (dynamic_cast<save_resume_data_alert const*>(a))
+		{
+			bencode(std::back_inserter(resume_data)
+				, *dynamic_cast<save_resume_data_alert const*>(a)->resume_data);
+			break;
+		}
+		a = ses2.wait_for_alert(seconds(10));
+	}
+
+	std::cerr << "saved resume data" << std::endl;
+
+	ses2.remove_torrent(tor2);
+
+	std::cerr << "removed" << std::endl;
+
+	test_sleep(1000);
+
+	std::cout << "re-adding" << std::endl;
+	add_torrent_params p;
+	p.ti = t;
+	p.save_path = "./tmp2_transfer";
+	p.resume_data = &resume_data;
+	tor2 = ses2.add_torrent(p);
+	tor2.prioritize_pieces(priorities);
+	std::cout << "resetting priorities" << std::endl;
+	tor2.resume();
+
+	test_sleep(1000);
+
+	for (int i = 0; i < 5; ++i)
+	{
+		print_alerts(ses1, "ses1");
+		print_alerts(ses2, "ses2");
+
+		torrent_status st1 = tor1.status();
+		torrent_status st2 = tor2.status();
+
+		TEST_CHECK(st1.state == torrent_status::seeding);
+		TEST_CHECK(st2.state == torrent_status::finished);
+
+		test_sleep(1000);
+	}
+
+	TEST_CHECK(!tor2.is_seed());
+
+}
+
+int test_main()
+{
+	using namespace libtorrent;
+	using namespace boost::filesystem;
+
+	// in case the previous run was terminated
+	try { remove_all("./tmp1_transfer"); } catch (std::exception&) {}
+	try { remove_all("./tmp2_transfer"); } catch (std::exception&) {}
+
+	test_transfer();
+	
+	return 0;
+}
+