package actors import ( "context" "strings" "sync" "github.com/ipfs/go-cid" cbor "github.com/ipfs/go-ipld-cbor" "golang.org/x/xerrors" "github.com/filecoin-project/go-state-types/manifest" "github.com/filecoin-project/lotus/chain/actors/adt" ) var manifestCids map[Version]cid.Cid = make(map[Version]cid.Cid) var manifests map[Version]map[string]cid.Cid = make(map[Version]map[string]cid.Cid) var actorMeta map[cid.Cid]actorEntry = make(map[cid.Cid]actorEntry) const ( AccountKey = "account" CronKey = "cron" InitKey = "init" MarketKey = "storagemarket" MinerKey = "storageminer" MultisigKey = "multisig" PaychKey = "paymentchannel" PowerKey = "storagepower" RewardKey = "reward" SystemKey = "system" VerifregKey = "verifiedregistry" ) func GetBuiltinActorsKeys() []string { return []string{ AccountKey, CronKey, InitKey, MarketKey, MinerKey, MultisigKey, PaychKey, PowerKey, RewardKey, SystemKey, VerifregKey, } } var ( manifestMx sync.RWMutex ) type actorEntry struct { name string version Version } // ClearManifest clears all known manifests. This is usually used in tests that need to switch networks. func ClearManifests() { manifestMx.Lock() defer manifestMx.Unlock() manifestCids = make(map[Version]cid.Cid) manifests = make(map[Version]map[string]cid.Cid) actorMeta = make(map[cid.Cid]actorEntry) } // RegisterManifest registers an actors manifest with lotus. func RegisterManifest(av Version, manifestCid cid.Cid, entries map[string]cid.Cid) { manifestMx.Lock() defer manifestMx.Unlock() manifestCids[av] = manifestCid manifests[av] = entries for name, c := range entries { actorMeta[c] = actorEntry{name: name, version: av} } } // GetManifest gets a loaded manifest. func GetManifest(av Version) (cid.Cid, bool) { manifestMx.RLock() defer manifestMx.RUnlock() c, ok := manifestCids[av] return c, ok } // ReadManifest reads a manifest from a blockstore. It does not "add" it. func ReadManifest(ctx context.Context, store cbor.IpldStore, mfCid cid.Cid) (map[string]cid.Cid, error) { adtStore := adt.WrapStore(ctx, store) var mf manifest.Manifest if err := adtStore.Get(ctx, mfCid, &mf); err != nil { return nil, xerrors.Errorf("error reading manifest (cid: %s): %w", mfCid, err) } if err := mf.Load(ctx, adtStore); err != nil { return nil, xerrors.Errorf("error loading manifest (cid: %s): %w", mfCid, err) } actorKeys := GetBuiltinActorsKeys() // TODO: we should be able to enumerate manifests directly. metadata := make(map[string]cid.Cid, len(actorKeys)) for _, name := range actorKeys { if c, ok := mf.Get(name); ok { metadata[name] = c } } return metadata, nil } // GetActorCodeID looks up a builtin actor's code CID by actor version and canonical actor name name. func GetActorCodeID(av Version, name string) (cid.Cid, bool) { manifestMx.RLock() defer manifestMx.RUnlock() c, ok := manifests[av][name] return c, ok } func GetActorMetaByCode(c cid.Cid) (string, Version, bool) { manifestMx.RLock() defer manifestMx.RUnlock() entry, ok := actorMeta[c] if !ok { return "", -1, false } return entry.name, entry.version, true } func CanonicalName(name string) string { idx := strings.LastIndex(name, "/") if idx >= 0 { return name[idx+1:] } return name }