public bool TryAddBlockUnmintedTxes(UInt256 blockHash, IImmutableList <UnmintedTx> unmintedTxes) { CheckWriteTransaction(); try { using (SetSessionContext()) using (var jetUpdate = this.jetSession.BeginUpdate(this.unmintedTxTableId, JET_prep.Insert)) { byte[] unmintedTxesBytes; using (var stream = new MemoryStream()) using (var writer = new BinaryWriter(stream)) { writer.WriteList(unmintedTxes, unmintedTx => DataEncoder.EncodeUnmintedTx(writer, unmintedTx)); unmintedTxesBytes = stream.ToArray(); } Api.SetColumns(this.jetSession, this.unmintedTxTableId, new BytesColumnValue { Columnid = this.unmintedBlockHashColumnId, Value = DbEncoder.EncodeUInt256(blockHash) }, new BytesColumnValue { Columnid = this.unmintedDataColumnId, Value = unmintedTxesBytes }); jetUpdate.Save(); } return(true); } catch (EsentKeyDuplicateException) { return(false); } }