lotus/chain/gen/genesis/t01_init.go

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package genesis
import (
"context"
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"encoding/json"
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"github.com/ipfs/go-hamt-ipld"
bstore "github.com/ipfs/go-ipfs-blockstore"
cbor "github.com/ipfs/go-ipld-cbor"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/genesis"
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)
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func SetupInitActor(bs bstore.Blockstore, netname string, initialActors []genesis.Actor) (*types.Actor, error) {
if len(initialActors) > MaxAccounts {
return nil, xerrors.New("too many initial actors")
}
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var ias actors.InitActorState
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ias.NextID = MinerStart
ias.NetworkName = netname
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cst := cbor.NewCborStore(bs)
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amap := hamt.NewNode(cst, hamt.UseTreeBitWidth(5)) // TODO: use spec adt map
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for i, a := range initialActors {
if a.Type != genesis.TAccount {
return nil, xerrors.Errorf("unsupported account type: %s", a.Type) // TODO: Support msig (skip here)
}
var ainfo genesis.AccountMeta
if err := json.Unmarshal(a.Meta, &ainfo); err != nil {
return nil, xerrors.Errorf("unmarshaling account meta: %w", err)
}
if err := amap.Set(context.TODO(), string(ainfo.Owner.Bytes()), AccountStart+uint64(i)); err != nil {
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return nil, err
}
}
if err := amap.Flush(context.TODO()); err != nil {
return nil, err
}
amapcid, err := cst.Put(context.TODO(), amap)
if err != nil {
return nil, err
}
ias.AddressMap = amapcid
statecid, err := cst.Put(context.TODO(), &ias)
if err != nil {
return nil, err
}
act := &types.Actor{
Code: actors.InitCodeCid,
Head: statecid,
}
return act, nil
}