Method TryEncodeKV

ethstorage/shard_manager.go:188–197

TryEncodeKV encode the KV data using the miner and encodeType specified by the data shard. Return false if the data is not managed by the ShardManager.

(kvIdx uint64, b []byte, hash common.Hash)

// TryEncodeKV encode the KV data using the miner and encodeType specified by the data shard.
// Return false if the data is not managed by the ShardManager.
func (sm *ShardManager) TryEncodeKV(kvIdx uint64, b []byte, hash common.Hash) ([]byte, bool, error) {
	shardIdx := kvIdx / sm.kvEntries
	if ds, ok := sm.shardMap[shardIdx]; ok {
		cb := make([]byte, ds.kvSize)
		copy(cb, b)
		return sm.EncodeKV(kvIdx, cb, hash, ds.Miner(), ds.EncodeType())
	} else {
		return nil, false, nil
	}
}

// TryReadWithMeta Read the encoded KV data and meta from storage file and decode it.
// Return error if the read IO fails.