Method TryReadWithMeta

ethstorage/shard_manager.go:202–210

TryReadWithMeta Read the encoded KV data and meta from storage file and decode it. Return error if the read IO fails. Return false if the data is not managed by the ShardManager.

(kvIdx uint64, readLen int)

// Return error if the read IO fails.
// Return false if the data is not managed by the ShardManager.
func (sm *ShardManager) TryReadWithMeta(kvIdx uint64, readLen int) ([]byte, []byte, bool, error) {
	shardIdx := kvIdx / sm.kvEntries
	if ds, ok := sm.shardMap[shardIdx]; ok {
		b, commit, err := ds.ReadWithMeta(kvIdx, readLen)
		return b, commit, true, err
	} else {
		return nil, nil, false, nil
	}
}

func (sm *ShardManager) GetShardMiner(shardIdx uint64) (common.Address, bool) {
	if ds, ok := sm.shardMap[shardIdx]; ok {