252 lines
7.1 KiB
Go
252 lines
7.1 KiB
Go
package modules
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import (
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"context"
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"os"
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"strconv"
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"time"
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"github.com/ipfs/go-datastore"
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"github.com/ipfs/go-datastore/namespace"
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eventbus "github.com/libp2p/go-eventbus"
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event "github.com/libp2p/go-libp2p-core/event"
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"github.com/libp2p/go-libp2p-core/host"
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"github.com/libp2p/go-libp2p-core/peer"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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"go.uber.org/fx"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-fil-markets/discovery"
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discoveryimpl "github.com/filecoin-project/go-fil-markets/discovery/impl"
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"github.com/filecoin-project/lotus/build"
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"github.com/filecoin-project/lotus/chain"
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"github.com/filecoin-project/lotus/chain/beacon"
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"github.com/filecoin-project/lotus/chain/beacon/drand"
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"github.com/filecoin-project/lotus/chain/exchange"
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"github.com/filecoin-project/lotus/chain/messagepool"
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"github.com/filecoin-project/lotus/chain/stmgr"
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"github.com/filecoin-project/lotus/chain/store"
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"github.com/filecoin-project/lotus/chain/sub"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/journal"
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"github.com/filecoin-project/lotus/journal/fsjournal"
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"github.com/filecoin-project/lotus/lib/peermgr"
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marketevents "github.com/filecoin-project/lotus/markets/loggers"
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"github.com/filecoin-project/lotus/node/hello"
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"github.com/filecoin-project/lotus/node/modules/dtypes"
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"github.com/filecoin-project/lotus/node/modules/helpers"
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"github.com/filecoin-project/lotus/node/repo"
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)
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var pubsubMsgsSyncEpochs = 10
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func init() {
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if s := os.Getenv("LOTUS_MSGS_SYNC_EPOCHS"); s != "" {
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val, err := strconv.Atoi(s)
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if err != nil {
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log.Errorf("failed to parse LOTUS_MSGS_SYNC_EPOCHS: %s", err)
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return
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}
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pubsubMsgsSyncEpochs = val
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}
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}
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func RunHello(mctx helpers.MetricsCtx, lc fx.Lifecycle, h host.Host, svc *hello.Service) error {
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h.SetStreamHandler(hello.ProtocolID, svc.HandleStream)
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sub, err := h.EventBus().Subscribe(new(event.EvtPeerIdentificationCompleted), eventbus.BufSize(1024))
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if err != nil {
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return xerrors.Errorf("failed to subscribe to event bus: %w", err)
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}
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ctx := helpers.LifecycleCtx(mctx, lc)
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go func() {
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for evt := range sub.Out() {
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pic := evt.(event.EvtPeerIdentificationCompleted)
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go func() {
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if err := svc.SayHello(ctx, pic.Peer); err != nil {
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protos, _ := h.Peerstore().GetProtocols(pic.Peer)
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agent, _ := h.Peerstore().Get(pic.Peer, "AgentVersion")
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if protosContains(protos, hello.ProtocolID) {
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log.Warnw("failed to say hello", "error", err, "peer", pic.Peer, "supported", protos, "agent", agent)
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} else {
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log.Debugw("failed to say hello", "error", err, "peer", pic.Peer, "supported", protos, "agent", agent)
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}
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return
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}
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}()
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}
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}()
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return nil
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}
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func protosContains(protos []string, search string) bool {
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for _, p := range protos {
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if p == search {
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return true
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}
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}
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return false
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}
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func RunPeerMgr(mctx helpers.MetricsCtx, lc fx.Lifecycle, pmgr *peermgr.PeerMgr) {
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go pmgr.Run(helpers.LifecycleCtx(mctx, lc))
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}
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func RunChainExchange(h host.Host, svc exchange.Server) {
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h.SetStreamHandler(exchange.BlockSyncProtocolID, svc.HandleStream) // old
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h.SetStreamHandler(exchange.ChainExchangeProtocolID, svc.HandleStream) // new
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}
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func waitForSync(stmgr *stmgr.StateManager, epochs int, subscribe func()) {
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nearsync := time.Duration(epochs*int(build.BlockDelaySecs)) * time.Second
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// early check, are we synced at start up?
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ts := stmgr.ChainStore().GetHeaviestTipSet()
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timestamp := ts.MinTimestamp()
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timestampTime := time.Unix(int64(timestamp), 0)
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if build.Clock.Since(timestampTime) < nearsync {
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subscribe()
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return
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}
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// we are not synced, subscribe to head changes and wait for sync
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stmgr.ChainStore().SubscribeHeadChanges(func(rev, app []*types.TipSet) error {
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if len(app) == 0 {
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return nil
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}
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latest := app[0].MinTimestamp()
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for _, ts := range app[1:] {
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timestamp := ts.MinTimestamp()
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if timestamp > latest {
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latest = timestamp
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}
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}
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latestTime := time.Unix(int64(latest), 0)
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if build.Clock.Since(latestTime) < nearsync {
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subscribe()
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return store.ErrNotifeeDone
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}
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return nil
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})
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}
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func HandleIncomingBlocks(mctx helpers.MetricsCtx, lc fx.Lifecycle, ps *pubsub.PubSub, s *chain.Syncer, bserv dtypes.ChainBlockService, chain *store.ChainStore, stmgr *stmgr.StateManager, h host.Host, nn dtypes.NetworkName) {
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ctx := helpers.LifecycleCtx(mctx, lc)
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v := sub.NewBlockValidator(
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h.ID(), chain, stmgr,
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func(p peer.ID) {
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ps.BlacklistPeer(p)
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h.ConnManager().TagPeer(p, "badblock", -1000)
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})
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if err := ps.RegisterTopicValidator(build.BlocksTopic(nn), v.Validate); err != nil {
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panic(err)
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}
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log.Infof("subscribing to pubsub topic %s", build.BlocksTopic(nn))
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blocksub, err := ps.Subscribe(build.BlocksTopic(nn)) //nolint
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if err != nil {
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panic(err)
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}
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go sub.HandleIncomingBlocks(ctx, blocksub, s, bserv, h.ConnManager())
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}
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func HandleIncomingMessages(mctx helpers.MetricsCtx, lc fx.Lifecycle, ps *pubsub.PubSub, stmgr *stmgr.StateManager, mpool *messagepool.MessagePool, h host.Host, nn dtypes.NetworkName, bootstrapper dtypes.Bootstrapper) {
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ctx := helpers.LifecycleCtx(mctx, lc)
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v := sub.NewMessageValidator(h.ID(), mpool)
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if err := ps.RegisterTopicValidator(build.MessagesTopic(nn), v.Validate); err != nil {
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panic(err)
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}
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subscribe := func() {
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log.Infof("subscribing to pubsub topic %s", build.MessagesTopic(nn))
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msgsub, err := ps.Subscribe(build.MessagesTopic(nn)) //nolint
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if err != nil {
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panic(err)
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}
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go sub.HandleIncomingMessages(ctx, mpool, msgsub)
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}
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if bootstrapper {
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subscribe()
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return
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}
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// wait until we are synced within 10 epochs -- env var can override
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waitForSync(stmgr, pubsubMsgsSyncEpochs, subscribe)
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}
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func NewLocalDiscovery(lc fx.Lifecycle, ds dtypes.MetadataDS) (*discoveryimpl.Local, error) {
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local, err := discoveryimpl.NewLocal(namespace.Wrap(ds, datastore.NewKey("/deals/local")))
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if err != nil {
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return nil, err
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}
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local.OnReady(marketevents.ReadyLogger("discovery"))
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lc.Append(fx.Hook{
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OnStart: func(ctx context.Context) error {
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return local.Start(ctx)
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},
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})
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return local, nil
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}
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func RetrievalResolver(l *discoveryimpl.Local) discovery.PeerResolver {
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return discoveryimpl.Multi(l)
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}
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type RandomBeaconParams struct {
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fx.In
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PubSub *pubsub.PubSub `optional:"true"`
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Cs *store.ChainStore
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DrandConfig dtypes.DrandSchedule
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}
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func BuiltinDrandConfig() dtypes.DrandSchedule {
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return build.DrandConfigSchedule()
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}
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func RandomSchedule(p RandomBeaconParams, _ dtypes.AfterGenesisSet) (beacon.Schedule, error) {
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gen, err := p.Cs.GetGenesis()
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if err != nil {
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return nil, err
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}
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shd := beacon.Schedule{}
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for _, dc := range p.DrandConfig {
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bc, err := drand.NewDrandBeacon(gen.Timestamp, build.BlockDelaySecs, p.PubSub, dc.Config)
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if err != nil {
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return nil, xerrors.Errorf("creating drand beacon: %w", err)
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}
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shd = append(shd, beacon.BeaconPoint{Start: dc.Start, Beacon: bc})
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}
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return shd, nil
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}
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func OpenFilesystemJournal(lr repo.LockedRepo, lc fx.Lifecycle, disabled journal.DisabledEvents) (journal.Journal, error) {
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jrnl, err := fsjournal.OpenFSJournal(lr, disabled)
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if err != nil {
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return nil, err
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}
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lc.Append(fx.Hook{
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OnStop: func(_ context.Context) error { return jrnl.Close() },
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})
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return jrnl, err
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}
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