58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
package simulation
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import (
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"context"
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blockadt "github.com/filecoin-project/specs-actors/actors/util/adt"
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"github.com/ipfs/go-cid"
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cbg "github.com/whyrusleeping/cbor-gen"
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"github.com/filecoin-project/lotus/chain/types"
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)
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// toArray converts the given set of CIDs to an AMT. This is usually used to pack messages into blocks.
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func toArray(store blockadt.Store, cids []cid.Cid) (cid.Cid, error) {
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arr := blockadt.MakeEmptyArray(store)
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for i, c := range cids {
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oc := cbg.CborCid(c)
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if err := arr.Set(uint64(i), &oc); err != nil {
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return cid.Undef, err
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}
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}
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return arr.Root()
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}
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// storeMessages packs a set of messages into a types.MsgMeta and returns the resulting CID. The
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// resulting CID is valid for the BlocKHeader's Messages field.
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func (nd *Node) storeMessages(ctx context.Context, messages []*types.Message) (cid.Cid, error) {
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// We store all messages as "bls" messages so they're executed in-order. This ensures
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// accurate gas accounting. It also ensures we don't, e.g., try to fund a miner after we
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// fail a pre-commit...
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var msgCids []cid.Cid
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for _, msg := range messages {
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c, err := nd.Chainstore.PutMessage(msg)
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if err != nil {
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return cid.Undef, err
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}
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msgCids = append(msgCids, c)
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}
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adtStore := nd.Chainstore.ActorStore(ctx)
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blsMsgArr, err := toArray(adtStore, msgCids)
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if err != nil {
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return cid.Undef, err
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}
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sekpMsgArr, err := toArray(adtStore, nil)
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if err != nil {
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return cid.Undef, err
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}
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msgsCid, err := adtStore.Put(adtStore.Context(), &types.MsgMeta{
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BlsMessages: blsMsgArr,
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SecpkMessages: sekpMsgArr,
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})
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if err != nil {
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return cid.Undef, err
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}
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return msgsCid, nil
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}
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