lotus/chain/gen/genesis/f00_system.go

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package genesis
import (
"context"
"github.com/ipfs/go-cid"
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cbor "github.com/ipfs/go-ipld-cbor"
"golang.org/x/xerrors"
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actorstypes "github.com/filecoin-project/go-state-types/actors"
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"github.com/filecoin-project/go-state-types/big"
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"github.com/filecoin-project/go-state-types/manifest"
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bstore "github.com/filecoin-project/lotus/blockstore"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/actors/adt"
"github.com/filecoin-project/lotus/chain/actors/builtin/system"
"github.com/filecoin-project/lotus/chain/types"
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)
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func SetupSystemActor(ctx context.Context, bs bstore.Blockstore, av actorstypes.Version) (*types.Actor, error) {
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cst := cbor.NewCborStore(bs)
// TODO pass in built-in actors cid for V8 and later
st, err := system.MakeState(adt.WrapStore(ctx, cst), av, cid.Undef)
if err != nil {
return nil, err
}
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if av >= actorstypes.Version8 {
mfCid, ok := actors.GetManifest(av)
if !ok {
return nil, xerrors.Errorf("missing manifest for actors version %d", av)
}
mf := manifest.Manifest{}
if err := cst.Get(ctx, mfCid, &mf); err != nil {
return nil, xerrors.Errorf("loading manifest for actors version %d: %w", av, err)
}
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if err := st.SetBuiltinActors(mf.Data); err != nil {
return nil, xerrors.Errorf("failed to set manifest data: %w", err)
}
}
statecid, err := cst.Put(ctx, st.GetState())
if err != nil {
return nil, err
}
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actcid, ok := actors.GetActorCodeID(av, manifest.SystemKey)
if !ok {
return nil, xerrors.Errorf("failed to get system actor code ID for actors version %d", av)
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}
act := &types.Actor{
Code: actcid,
Head: statecid,
Balance: big.Zero(),
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}
return act, nil
}