lotus/node/modules/builtin_actors.go

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package modules
import (
"bytes"
"go.uber.org/fx"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/node/modules/dtypes"
"github.com/filecoin-project/lotus/node/modules/helpers"
cbor "github.com/ipfs/go-ipld-cbor"
car "github.com/ipld/go-car"
)
func LoadBultinActors(lc fx.Lifecycle, mctx helpers.MetricsCtx, bs dtypes.UniversalBlockstore) (result dtypes.BuiltinActorsLoaded, err error) {
ctx := helpers.LifecycleCtx(mctx, lc)
// TODO eventually we want this to start with bundle/manifest CIDs and fetch them from IPFS if
// not already loaded.
// For now, we just embed the v8 bundle and adjust the manifest CIDs for the migration/actor
// metadata.
blobr := bytes.NewReader(build.BuiltinActorsV8Bundle())
hdr, err := car.LoadCar(ctx, bs, blobr)
if err != nil {
return result, xerrors.Errorf("error loading builtin actors v8 bundle: %w", err)
}
manifestCid := hdr.Roots[0]
actors.ManifestCids[actors.Version8] = manifestCid
cborStore := cbor.NewCborStore(bs)
if err := actors.LoadManifests(ctx, cborStore); err != nil {
return result, xerrors.Errorf("error loading actor manifests: %w", err)
}
return result, nil
}