| 1 | package libp2p |
| 2 | |
| 3 | import ( |
| 4 | "math/rand" |
| 5 | "time" |
| 6 | |
| 7 | "github.com/libp2p/go-libp2p/core/discovery" |
| 8 | "github.com/libp2p/go-libp2p/core/host" |
| 9 | "github.com/libp2p/go-libp2p/p2p/discovery/backoff" |
| 10 | disc "github.com/libp2p/go-libp2p/p2p/discovery/routing" |
| 11 | |
| 12 | "github.com/libp2p/go-libp2p/core/routing" |
| 13 | ) |
| 14 | |
| 15 | func TopicDiscovery() any { |
| 16 | return func(host host.Host, cr routing.ContentRouting) (service discovery.Discovery, err error) { |
| 17 | baseDisc := disc.NewRoutingDiscovery(cr) |
| 18 | minBackoff, maxBackoff := time.Second*60, time.Hour |
| 19 | rng := rand.New(rand.NewSource(rand.Int63())) |
| 20 | d, err := backoff.NewBackoffDiscovery( |
| 21 | baseDisc, |
| 22 | backoff.NewExponentialBackoff(minBackoff, maxBackoff, backoff.FullJitter, time.Second, 5.0, 0, rng), |
| 23 | ) |
| 24 | if err != nil { |
| 25 | return nil, err |
| 26 | } |
| 27 | |
| 28 | return d, nil |
| 29 | } |
| 30 | } |