premiere-libtorrent/test/test_swarm.cpp

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#include "libtorrent/session.hpp"
#include "libtorrent/session_settings.hpp"
#include "libtorrent/hasher.hpp"
#include "libtorrent/alert_types.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;
void test_swarm()
{
using namespace libtorrent;
session ses1(fingerprint("LT", 0, 1, 0, 0), std::make_pair(48000, 49000));
session ses2(fingerprint("LT", 0, 1, 0, 0), std::make_pair(49000, 50000));
session ses3(fingerprint("LT", 0, 1, 0, 0), std::make_pair(50000, 51000));
ses1.set_severity_level(alert::debug);
ses2.set_severity_level(alert::debug);
ses3.set_severity_level(alert::debug);
// this is to avoid everything finish from a single peer
// immediately. To make the swarm actually connect all
// three peers before finishing.
float rate_limit = 100000;
ses1.set_upload_rate_limit(int(rate_limit));
ses2.set_download_rate_limit(int(rate_limit));
ses3.set_download_rate_limit(int(rate_limit));
ses2.set_upload_rate_limit(int(rate_limit / 2));
ses3.set_upload_rate_limit(int(rate_limit / 2));
session_settings settings;
settings.allow_multiple_connections_per_ip = true;
settings.ignore_limits_on_local_network = false;
ses1.set_settings(settings);
ses2.set_settings(settings);
ses3.set_settings(settings);
#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);
ses3.set_pe_settings(pes);
#endif
torrent_handle tor1;
torrent_handle tor2;
torrent_handle tor3;
boost::tie(tor1, tor2, tor3) = setup_transfer(&ses1, &ses2, &ses3, true, false, true, "_swarm");
float sum_dl_rate2 = 0.f;
float sum_dl_rate3 = 0.f;
int count_dl_rates2 = 0;
int count_dl_rates3 = 0;
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for (int i = 0; i < 30; ++i)
{
print_alerts(ses1, "ses1");
print_alerts(ses2, "ses2");
print_alerts(ses3, "ses3");
torrent_status st1 = tor1.status();
torrent_status st2 = tor2.status();
torrent_status st3 = tor3.status();
if (st2.progress < 1.f && st2.progress > 0.5f)
{
sum_dl_rate2 += st2.download_payload_rate;
++count_dl_rates2;
}
if (st3.progress < 1.f && st3.progress > 0.5f)
{
sum_dl_rate3 += st3.download_rate;
++count_dl_rates3;
}
std::cerr
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<< "\033[33m" << int(st1.upload_payload_rate / 1000.f) << "kB/s "
<< 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 "
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<< "\033[0m" << int(st2.progress * 100) << "% "
<< st2.num_peers << " - "
<< "\033[32m" << int(st3.download_payload_rate / 1000.f) << "kB/s "
<< "\033[31m" << int(st3.upload_payload_rate / 1000.f) << "kB/s "
<< "\033[0m" << int(st3.progress * 100) << "% "
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<< st3.num_peers
<< std::endl;
if (tor2.is_seed() && tor3.is_seed()) break;
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test_sleep(1000);
}
TEST_CHECK(tor2.is_seed());
TEST_CHECK(tor3.is_seed());
float average2 = sum_dl_rate2 / float(count_dl_rates2);
float average3 = sum_dl_rate3 / float(count_dl_rates3);
std::cerr << average2 << std::endl;
std::cerr << "average rate: " << (average2 / 1000.f) << "kB/s - "
<< (average3 / 1000.f) << "kB/s" << std::endl;
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TEST_CHECK(std::fabs(average2 - float(rate_limit)) < rate_limit / 11.f);
TEST_CHECK(std::fabs(average3 - float(rate_limit)) < rate_limit / 11.f);
if (tor2.is_seed() && tor3.is_seed()) std::cerr << "done\n";
// make sure the files are deleted
ses1.remove_torrent(tor1, session::delete_files);
ses2.remove_torrent(tor2, session::delete_files);
ses3.remove_torrent(tor3, session::delete_files);
std::auto_ptr<alert> a = ses1.pop_alert();
ptime end = time_now() + seconds(20);
while (a.get() == 0 || dynamic_cast<torrent_deleted_alert*>(a.get()) == 0)
{
if (ses1.wait_for_alert(end - time_now()) == 0)
{
std::cerr << "wait_for_alert() expired" << std::endl;
break;
}
a = ses1.pop_alert();
assert(a.get());
std::cerr << a->msg() << std::endl;
}
TEST_CHECK(dynamic_cast<torrent_deleted_alert*>(a.get()) != 0);
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// there shouldn't be any alerts generated from now on
// make sure that the timer in wait_for_alert() works
// this should time out (ret == 0) and it should take
// about 2 seconds
ptime start = time_now();
alert const* ret = ses1.wait_for_alert(seconds(2));
TEST_CHECK(ret == 0);
if (ret != 0) std::cerr << ret->msg() << std::endl;
TEST_CHECK(time_now() - start < seconds(3));
TEST_CHECK(time_now() - start > seconds(2));
}
int test_main()
{
using namespace libtorrent;
using namespace boost::filesystem;
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// in case the previous run was terminated
try { remove_all("./tmp1_swarm"); } catch (std::exception&) {}
try { remove_all("./tmp2_swarm"); } catch (std::exception&) {}
try { remove_all("./tmp3_swarm"); } catch (std::exception&) {}
test_swarm();
test_sleep(2000);
TEST_CHECK(!exists("./tmp1_swarm/temporary"));
TEST_CHECK(!exists("./tmp2_swarm/temporary"));
TEST_CHECK(!exists("./tmp3_swarm/temporary"));
remove_all("./tmp1_swarm");
remove_all("./tmp2_swarm");
remove_all("./tmp3_swarm");
return 0;
}