lotus/node/impl/full/chain.go

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package full
import (
"context"
"github.com/filecoin-project/go-lotus/api"
"github.com/filecoin-project/go-lotus/chain/store"
"github.com/filecoin-project/go-lotus/chain/types"
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"golang.org/x/xerrors"
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"github.com/ipfs/go-cid"
pubsub "github.com/libp2p/go-libp2p-pubsub"
"go.uber.org/fx"
)
type ChainAPI struct {
fx.In
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WalletAPI
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Chain *store.ChainStore
PubSub *pubsub.PubSub
}
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func (a *ChainAPI) ChainNotify(ctx context.Context) (<-chan []*store.HeadChange, error) {
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return a.Chain.SubHeadChanges(ctx), nil
}
func (a *ChainAPI) ChainSubmitBlock(ctx context.Context, blk *types.BlockMsg) error {
// TODO: should we have some sort of fast path to adding a local block?
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b, err := blk.Serialize()
if err != nil {
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return xerrors.Errorf("serializing block for pubsub publishing failed: %w", err)
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}
// TODO: anything else to do here?
return a.PubSub.Publish("/fil/blocks", b)
}
func (a *ChainAPI) ChainHead(context.Context) (*types.TipSet, error) {
return a.Chain.GetHeaviestTipSet(), nil
}
func (a *ChainAPI) ChainGetRandomness(ctx context.Context, pts *types.TipSet, tickets []*types.Ticket, lb int) ([]byte, error) {
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return a.Chain.GetRandomness(ctx, pts.Cids(), tickets, int64(lb))
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}
func (a *ChainAPI) ChainGetBlock(ctx context.Context, msg cid.Cid) (*types.BlockHeader, error) {
return a.Chain.GetBlock(msg)
}
func (a *ChainAPI) ChainGetBlockMessages(ctx context.Context, msg cid.Cid) (*api.BlockMessages, error) {
b, err := a.Chain.GetBlock(msg)
if err != nil {
return nil, err
}
bmsgs, smsgs, err := a.Chain.MessagesForBlock(b)
if err != nil {
return nil, err
}
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cids := make([]cid.Cid, len(bmsgs)+len(smsgs))
for i, m := range bmsgs {
cids[i] = m.Cid()
}
for i, m := range smsgs {
cids[i+len(bmsgs)] = m.Cid()
}
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return &api.BlockMessages{
BlsMessages: bmsgs,
SecpkMessages: smsgs,
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Cids: cids,
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}, nil
}
func (a *ChainAPI) ChainGetParentMessages(ctx context.Context, bcid cid.Cid) ([]api.Message, error) {
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b, err := a.Chain.GetBlock(bcid)
if err != nil {
return nil, err
}
// genesis block has no parent messages...
if b.Height == 0 {
return nil, nil
}
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// TODO: need to get the number of messages better than this
pts, err := a.Chain.LoadTipSet(b.Parents)
if err != nil {
return nil, err
}
cm, err := a.Chain.MessagesForTipset(pts)
if err != nil {
return nil, err
}
var out []api.Message
for _, m := range cm {
out = append(out, api.Message{
Cid: m.Cid(),
Message: m.VMMessage(),
})
}
return out, nil
}
func (a *ChainAPI) ChainGetParentReceipts(ctx context.Context, bcid cid.Cid) ([]*types.MessageReceipt, error) {
b, err := a.Chain.GetBlock(bcid)
if err != nil {
return nil, err
}
if b.Height == 0 {
return nil, nil
}
// TODO: need to get the number of messages better than this
pts, err := a.Chain.LoadTipSet(b.Parents)
if err != nil {
return nil, err
}
cm, err := a.Chain.MessagesForTipset(pts)
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if err != nil {
return nil, err
}
var out []*types.MessageReceipt
for i := 0; i < len(cm); i++ {
r, err := a.Chain.GetParentReceipt(b, i)
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if err != nil {
return nil, err
}
out = append(out, r)
}
return out, nil
}
func (a *ChainAPI) ChainGetTipSetByHeight(ctx context.Context, h uint64, ts *types.TipSet) (*types.TipSet, error) {
return a.Chain.GetTipsetByHeight(ctx, h, ts)
}
func (a *ChainAPI) ChainReadObj(ctx context.Context, obj cid.Cid) ([]byte, error) {
blk, err := a.Chain.Blockstore().Get(obj)
if err != nil {
return nil, xerrors.Errorf("blockstore get: %w", err)
}
return blk.RawData(), nil
}
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func (a *ChainAPI) ChainSetHead(ctx context.Context, ts *types.TipSet) error {
return a.Chain.SetHead(ts)
}