erigon-pulse/cmd/rpcdaemon/commands/tg_block.go
2021-03-30 12:53:54 +03:00

54 lines
1.5 KiB
Go

package commands
import (
"context"
"fmt"
"github.com/ledgerwatch/turbo-geth/common"
"github.com/ledgerwatch/turbo-geth/core/rawdb"
"github.com/ledgerwatch/turbo-geth/core/types"
"github.com/ledgerwatch/turbo-geth/ethdb"
"github.com/ledgerwatch/turbo-geth/rpc"
)
// GetHeaderByNumber implements tg_getHeaderByNumber. Returns a block's header given a block number ignoring the block's transaction and uncle list (may be faster).
func (api *TgImpl) GetHeaderByNumber(ctx context.Context, blockNumber rpc.BlockNumber) (*types.Header, error) {
// Pending block is only known by the miner
if blockNumber == rpc.PendingBlockNumber {
block := api.pending.Block()
return block.Header(), nil
}
tx, err := api.db.Begin(ctx)
if err != nil {
return nil, err
}
defer tx.Rollback()
header := rawdb.ReadHeaderByNumber(ethdb.NewRoTxDb(tx), uint64(blockNumber.Int64()))
if header == nil {
return nil, fmt.Errorf("block header not found: %d", blockNumber.Int64())
}
return header, nil
}
// GetHeaderByHash implements tg_getHeaderByHash. Returns a block's header given a block's hash.
func (api *TgImpl) GetHeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
tx, err := api.db.Begin(ctx)
if err != nil {
return nil, err
}
defer tx.Rollback()
header, err := rawdb.ReadHeaderByHash(ethdb.NewRoTxDb(tx), hash)
if err != nil {
return nil, err
}
if header == nil {
return nil, fmt.Errorf("block header not found: %s", hash.String())
}
return header, nil
}