qt "github.com/frankban/quicktest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
+ "golang.org/x/time/rate"
"github.com/anacrolix/torrent/internal/testutil"
)
cfg.DisablePEX = true
cfg.Debug = true
cfg.AcceptPeerConnections = false
- // Listening, even without accepting, still means the leecher-leecher completes the dial to the seeder, and so it
- // won't attempt to holepunch.
+ // Listening, even without accepting, still means the leecher-leecher completes the dial to the
+ // seeder, and so it won't attempt to holepunch.
cfg.DisableTCP = true
+ // Ensure that responding to holepunch connects don't wait around for the dial limit. We also
+ // have to allow the initial connection to the leecher though, so it can rendezvous for us.
+ cfg.DialRateLimiter = rate.NewLimiter(0, 1)
seeder, err := NewClient(cfg)
require.NoError(t, err)
defer seeder.Close()
cfg.Seed = false
cfg.DataDir = t.TempDir()
cfg.MaxAllocPeerRequestDataPerConn = 4
- cfg.Debug = true
+ //cfg.Debug = true
cfg.NominalDialTimeout = time.Second
//cfg.DisableUTP = true
leecherLeecher, _ := NewClient(cfg)
makeDialer := func(localPort int, remoteAddr string) func() (net.Conn, error) {
dialer := net.Dialer{
LocalAddr: &net.TCPAddr{
+ //IP: net.IPv6loopback,
Port: localPort,
},
}
}
}
c := qt.New(t)
- first, second := randPortPair()
- t.Logf("ports are %v and %v", first, second)
- err := testSimultaneousOpen(
- c.Cleanup,
- makeDialer(first, fmt.Sprintf("localhost:%d", second)),
- makeDialer(second, fmt.Sprintf("localhost:%d", first)),
- )
- c.Assert(err, qt.IsNil)
+ // I really hate doing this in unit tests, but we would need to pick apart Dialer to get
+ // perfectly synchronized simultaneous dials.
+ for range iter.N(10) {
+ first, second := randPortPair()
+ t.Logf("ports are %v and %v", first, second)
+ err := testSimultaneousOpen(
+ c.Cleanup,
+ makeDialer(first, fmt.Sprintf("localhost:%d", second)),
+ makeDialer(second, fmt.Sprintf("localhost:%d", first)),
+ )
+ if err == nil {
+ return
+ }
+ // This proves that the connections are not the same.
+ if errors.Is(err, errMsgNotReceived) {
+ t.Fatal(err)
+ }
+ // Could be a timing issue, so try again.
+ t.Log(err)
+ }
+ // If we weren't able to get a simultaneous dial to occur, then we can't call it a failure.
+ t.Skip("couldn't synchronize dials")
}
func randIntInRange(low, high int) int {