erigon-pulse/turbo/snapshotsync/block_reader.go

36 lines
970 B
Go
Raw Normal View History

2021-11-14 04:08:52 +00:00
package snapshotsync
import (
"context"
"fmt"
2021-11-14 04:08:52 +00:00
"github.com/ledgerwatch/erigon-lib/kv"
"github.com/ledgerwatch/erigon/common"
"github.com/ledgerwatch/erigon/core/rawdb"
"github.com/ledgerwatch/erigon/core/types"
)
// BlockReader can read blocks from db and snapshots
type BlockReader struct {
}
func NewBlockReader() *BlockReader {
return &BlockReader{}
}
func (back *BlockReader) BlockWithSenders(ctx context.Context, tx kv.Tx, hash common.Hash, blockHeight uint64) (block *types.Block, senders []common.Address, err error) {
canonicalHash, err := rawdb.ReadCanonicalHash(tx, blockHeight)
2021-11-14 04:08:52 +00:00
if err != nil {
return nil, nil, fmt.Errorf("requested non-canonical hash %x. canonical=%x", hash, canonicalHash)
2021-11-14 04:08:52 +00:00
}
if canonicalHash == hash {
block, senders, err = rawdb.ReadBlockWithSenders(tx, hash, blockHeight)
if err != nil {
return nil, nil, err
}
return block, senders, nil
}
return rawdb.NonCanonicalBlockWithSenders(tx, hash, blockHeight)
2021-11-14 04:08:52 +00:00
}