package storageadapter import ( "context" "github.com/ipfs/go-cid" cbor "github.com/ipfs/go-ipld-cbor" "golang.org/x/xerrors" "github.com/filecoin-project/go-address" "github.com/filecoin-project/lotus/chain/actors/adt" "github.com/filecoin-project/lotus/blockstore" "github.com/filecoin-project/lotus/chain/actors/builtin/miner" "github.com/filecoin-project/lotus/chain/types" ) type apiWrapper struct { api interface { StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error) ChainReadObj(context.Context, cid.Cid) ([]byte, error) ChainHasObj(context.Context, cid.Cid) (bool, error) } } func (ca *apiWrapper) diffPreCommits(ctx context.Context, actor address.Address, pre, cur types.TipSetKey) (*miner.PreCommitChanges, error) { store := adt.WrapStore(ctx, cbor.NewCborStore(blockstore.NewAPIBlockstore(ca.api))) preAct, err := ca.api.StateGetActor(ctx, actor, pre) if err != nil { return nil, xerrors.Errorf("getting pre actor: %w", err) } curAct, err := ca.api.StateGetActor(ctx, actor, cur) if err != nil { return nil, xerrors.Errorf("getting cur actor: %w", err) } preSt, err := miner.Load(store, preAct) if err != nil { return nil, xerrors.Errorf("loading miner actor: %w", err) } curSt, err := miner.Load(store, curAct) if err != nil { return nil, xerrors.Errorf("loading miner actor: %w", err) } diff, err := miner.DiffPreCommits(preSt, curSt) if err != nil { return nil, xerrors.Errorf("diff precommits: %w", err) } return diff, err }