public bool TryAddHeader(ChainedHeader header)
{
CheckWriteTransaction();
try
{
using (SetSessionContext())
using (var jetUpdate = this.jetSession.BeginUpdate(this.headersTableId, JET_prep.Insert))
{
Api.SetColumns(this.jetSession, this.headersTableId,
new BytesColumnValue {
Columnid = this.headerBlockHashColumnId, Value = DbEncoder.EncodeUInt256(header.Hash)
},
new BytesColumnValue {
Columnid = this.headerBytesColumnId, Value = DataEncoder.EncodeChainedHeader(header)
});
jetUpdate.Save();
}
return(true);
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
private void AddTransaction(int blockIndex, int txIndex, UInt256 txHash, byte[] txBytes, EsentBlockTxesCursor cursor)
{
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blocksTableId, JET_prep.Insert))
{
Api.SetColumns(cursor.jetSession, cursor.blocksTableId,
new Int32ColumnValue {
Columnid = cursor.blockIndexColumnId, Value = blockIndex
},
new Int32ColumnValue {
Columnid = cursor.txIndexColumnId, Value = txIndex
},
//TODO i'm using -1 depth to mean not pruned, this should be interpreted as depth 0
new Int32ColumnValue {
Columnid = cursor.blockDepthColumnId, Value = -1
},
new BytesColumnValue {
Columnid = cursor.blockTxHashColumnId, Value = DbEncoder.EncodeUInt256(txHash)
},
new BytesColumnValue {
Columnid = cursor.blockTxBytesColumnId, Value = txBytes
});
jetUpdate.Save();
}
}
public bool TryRemoveUnspentTx(UInt256 txHash)
{
if (!this.inTransaction)
{
throw new InvalidOperationException();
}
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(txHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ))
{
var addedBlockIndex = Api.RetrieveColumnAsInt32(this.jetSession, this.unspentTxTableId, this.blockIndexColumnId).Value;
var txIndex = Api.RetrieveColumnAsInt32(this.jetSession, this.unspentTxTableId, this.txIndexColumnId).Value;
var outputStates = DataEncoder.DecodeOutputStates(Api.RetrieveColumn(this.jetSession, this.unspentTxTableId, this.outputStatesColumnId));
Api.JetDelete(this.jetSession, this.unspentTxTableId);
// decrease unspent tx count
Api.EscrowUpdate(this.jetSession, this.globalsTableId, this.unspentTxCountColumnId, -1);
return(true);
}
else
{
return(false);
}
}
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);
}
}
public bool TryUpdateUnspentTx(UnspentTx unspentTx)
{
CheckWriteTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(unspentTx.TxHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ))
{
using (var jetUpdate = this.jetSession.BeginUpdate(this.unspentTxTableId, JET_prep.Replace))
{
Api.SetColumn(this.jetSession, this.unspentTxTableId, this.outputStatesColumnId, DataEncoder.EncodeOutputStates(unspentTx.OutputStates));
jetUpdate.Save();
}
return(true);
}
else
{
return(false);
}
}
}
public void MarkBlockInvalid(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockHeadersTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockHeadersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (!Api.TrySeek(cursor.jetSession, cursor.blockHeadersTableId, SeekGrbit.SeekEQ))
{
throw new MissingDataException(blockHash);
}
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blockHeadersTableId, JET_prep.Replace))
{
Api.SetColumn(cursor.jetSession, cursor.blockHeadersTableId, cursor.blockHeaderValidColumnId, false);
jetUpdate.Save();
}
jetTx.CommitLazy();
}
}
}
public bool TryRemoveChainedHeader(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
bool removed;
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockHeadersTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockHeadersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockHeadersTableId, SeekGrbit.SeekEQ))
{
Api.JetDelete(cursor.jetSession, cursor.blockHeadersTableId);
removed = true;
}
else
{
removed = false;
}
jetTx.CommitLazy();
return(removed);
}
}
}
public bool ContainsBlockUnmintedTxes(UInt256 blockHash)
{
CheckTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unmintedTxTableId, "IX_UnmintedBlockHash");
Api.MakeKey(this.jetSession, this.unmintedTxTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
return(Api.TrySeek(this.jetSession, this.unmintedTxTableId, SeekGrbit.SeekEQ));
}
}
public bool ContainsUnspentTx(UInt256 txHash)
{
CheckTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(txHash), MakeKeyGrbit.NewKey);
return(Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ));
}
}
public bool ContainsChainedHeader(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockHeadersTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockHeadersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
return(Api.TrySeek(cursor.jetSession, cursor.blockHeadersTableId, SeekGrbit.SeekEQ));
}
}
private void DeleteBlockIndex(EsentBlockTxesCursor cursor, UInt256 blockHash)
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIndexTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockIndexTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockIndexTableId, SeekGrbit.SeekEQ))
{
Api.JetDelete(cursor.jetSession, cursor.blockIndexTableId);
}
else
{
throw new InvalidOperationException();
}
}
public bool ContainsBlock(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIndexTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockIndexTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
return(Api.TrySeek(cursor.jetSession, cursor.blockIndexTableId, SeekGrbit.SeekEQ));
}
}
}
private bool TryGetBlockIndex(EsentBlockTxesCursor cursor, UInt256 blockHash, out int blockIndex)
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIndexTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockIndexTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockIndexTableId, SeekGrbit.SeekEQ))
{
blockIndex = Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blockIndexTableId, cursor.blockIndexBlockIndexColumnId).Value;
return(true);
}
else
{
blockIndex = -1;
return(false);
}
}
public bool TryRemoveBlockTransactions(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIdsTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockIdsTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockIdsTableId, SeekGrbit.SeekEQ))
{
var blockId = Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blockIdsTableId, cursor.blockIdsIdColumnId).Value;
// remove block id
Api.JetDelete(cursor.jetSession, cursor.blockIdsTableId);
// remove transactions
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blocksTableId, "IX_BlockIdTxIndex");
Api.MakeKey(cursor.jetSession, cursor.blocksTableId, blockId, MakeKeyGrbit.NewKey);
Api.MakeKey(cursor.jetSession, cursor.blocksTableId, -1, MakeKeyGrbit.None);
if (Api.TrySeek(cursor.jetSession, cursor.blocksTableId, SeekGrbit.SeekGE) &&
blockId == Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blocksTableId, cursor.blockIdColumnId).Value)
{
do
{
Api.JetDelete(cursor.jetSession, cursor.blocksTableId);
} while (Api.TryMoveNext(cursor.jetSession, cursor.blocksTableId) &&
blockId == Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blocksTableId, cursor.blockIdColumnId).Value);
}
// decrease block count
Api.EscrowUpdate(cursor.jetSession, cursor.globalsTableId, cursor.blockCountColumnId, -1);
jetTx.CommitLazy();
return(true);
}
else
{
// transactions are already removed
return(false);
}
}
}
}
public bool TryGetUnspentTx(UInt256 txHash, out UnspentTx unspentTx)
{
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(txHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ))
{
var blockIndex = Api.RetrieveColumnAsInt32(this.jetSession, this.unspentTxTableId, this.blockIndexColumnId).Value;
var txIndex = Api.RetrieveColumnAsInt32(this.jetSession, this.unspentTxTableId, this.txIndexColumnId).Value;
var outputStates = DataEncoder.DecodeOutputStates(Api.RetrieveColumn(this.jetSession, this.unspentTxTableId, this.outputStatesColumnId));
unspentTx = new UnspentTx(txHash, blockIndex, txIndex, outputStates);
return(true);
}
unspentTx = default(UnspentTx);
return(false);
}
public bool TryGetUnspentTx(UInt256 txHash, out UnspentTx unspentTx)
{
CheckTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(txHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ))
{
var blockIndexColumn = new Int32ColumnValue {
Columnid = this.blockIndexColumnId
};
var txIndexColumn = new Int32ColumnValue {
Columnid = this.txIndexColumnId
};
var txVersionColumn = new UInt32ColumnValue {
Columnid = this.txVersionColumnId
};
var isCoinbaseColumn = new BoolColumnValue {
Columnid = this.isCoinbaseColumnId
};
var outputStatesColumn = new BytesColumnValue {
Columnid = this.outputStatesColumnId
};
var txOutputBytesColumn = new BytesColumnValue {
Columnid = this.txOutputBytesColumnId
};
Api.RetrieveColumns(this.jetSession, this.unspentTxTableId, blockIndexColumn, txIndexColumn, txVersionColumn, isCoinbaseColumn, outputStatesColumn, txOutputBytesColumn);
var blockIndex = blockIndexColumn.Value.Value;
var txIndex = txIndexColumn.Value.Value;
var txVersion = txVersionColumn.Value.Value;
var isCoinbase = isCoinbaseColumn.Value.Value;
var outputStates = DataDecoder.DecodeOutputStates(outputStatesColumn.Value);
unspentTx = new UnspentTx(txHash, blockIndex, txIndex, txVersion, isCoinbase, outputStates);
return(true);
}
unspentTx = default(UnspentTx);
return(false);
}
}
public bool TryAddChainedHeader(ChainedHeader chainedHeader)
{
try
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blockHeadersTableId, JET_prep.Insert))
{
Api.SetColumns(cursor.jetSession, cursor.blockHeadersTableId,
new BytesColumnValue {
Columnid = cursor.blockHeaderHashColumnId, Value = DbEncoder.EncodeUInt256(chainedHeader.Hash)
},
new BytesColumnValue {
Columnid = cursor.blockHeaderPreviousHashColumnId, Value = DbEncoder.EncodeUInt256(chainedHeader.PreviousBlockHash)
},
new Int32ColumnValue {
Columnid = cursor.blockHeaderHeightColumnId, Value = chainedHeader.Height
},
new BytesColumnValue {
Columnid = cursor.blockHeaderTotalWorkColumnId, Value = DataEncoder.EncodeTotalWork(chainedHeader.TotalWork)
},
new BytesColumnValue {
Columnid = cursor.blockHeaderBytesColumnId, Value = DataEncoder.EncodeChainedHeader(chainedHeader)
});
jetUpdate.Save();
}
jetTx.CommitLazy();
return(true);
}
}
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
public bool TryGetChainedHeader(UInt256 blockHash, out ChainedHeader chainedHeader)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockHeadersTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockHeadersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockHeadersTableId, SeekGrbit.SeekEQ))
{
chainedHeader = DataDecoder.DecodeChainedHeader(Api.RetrieveColumn(cursor.jetSession, cursor.blockHeadersTableId, cursor.blockHeaderBytesColumnId));
return(true);
}
else
{
chainedHeader = default(ChainedHeader);
return(false);
}
}
}
public bool TryRemoveUnspentTx(UInt256 txHash)
{
CheckWriteTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");
Api.MakeKey(this.jetSession, this.unspentTxTableId, DbEncoder.EncodeUInt256(txHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unspentTxTableId, SeekGrbit.SeekEQ))
{
Api.JetDelete(this.jetSession, this.unspentTxTableId);
return(true);
}
else
{
return(false);
}
}
}
public bool TryGetHeader(UInt256 blockHash, out ChainedHeader header)
{
CheckTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.headersTableId, "IX_BlockHash");
Api.MakeKey(this.jetSession, this.headersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.headersTableId, SeekGrbit.SeekEQ))
{
var headerBytes = Api.RetrieveColumn(this.jetSession, this.headersTableId, this.headerBytesColumnId);
header = DataDecoder.DecodeChainedHeader(headerBytes);
return(true);
}
header = default(ChainedHeader);
return(false);
}
}
public void WriteNode(BlockTxNode node)
{
if (!node.Pruned)
{
throw new ArgumentException();
}
var recordBlockIndexColumn = new Int32ColumnValue {
Columnid = cursor.blockIndexColumnId
};
var recordTxIndexColumn = new Int32ColumnValue {
Columnid = cursor.txIndexColumnId
};
Api.RetrieveColumns(cursor.jetSession, cursor.blocksTableId, recordBlockIndexColumn, recordTxIndexColumn);
if (this.blockIndex != recordBlockIndexColumn.Value.Value)
{
throw new InvalidOperationException();
}
if (node.Index != recordTxIndexColumn.Value.Value)
{
throw new InvalidOperationException();
}
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blocksTableId, JET_prep.Replace))
{
Api.SetColumns(cursor.jetSession, cursor.blocksTableId,
new Int32ColumnValue {
Columnid = cursor.blockDepthColumnId, Value = node.Depth
},
new BytesColumnValue {
Columnid = cursor.blockTxHashColumnId, Value = DbEncoder.EncodeUInt256(node.Hash)
},
new Int32ColumnValue {
Columnid = cursor.blockTxBytesColumnId, Value = null
});
jetUpdate.Save();
}
}
public bool TryAddUnspentTx(UnspentTx unspentTx)
{
CheckWriteTransaction();
using (SetSessionContext())
{
try
{
using (var jetUpdate = this.jetSession.BeginUpdate(this.unspentTxTableId, JET_prep.Insert))
{
Api.SetColumns(this.jetSession, this.unspentTxTableId,
new BytesColumnValue {
Columnid = this.txHashColumnId, Value = DbEncoder.EncodeUInt256(unspentTx.TxHash)
},
new Int32ColumnValue {
Columnid = this.blockIndexColumnId, Value = unspentTx.BlockIndex
},
new Int32ColumnValue {
Columnid = this.txIndexColumnId, Value = unspentTx.TxIndex
},
new UInt32ColumnValue {
Columnid = this.txVersionColumnId, Value = unspentTx.TxVersion
},
new BoolColumnValue {
Columnid = this.isCoinbaseColumnId, Value = unspentTx.IsCoinbase
},
new BytesColumnValue {
Columnid = this.outputStatesColumnId, Value = DataEncoder.EncodeOutputStates(unspentTx.OutputStates)
});
jetUpdate.Save();
}
return(true);
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
}
public bool IsBlockInvalid(UInt256 blockHash)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockHeadersTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockHeadersTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockHeadersTableId, SeekGrbit.SeekEQ))
{
var valid = Api.RetrieveColumnAsBoolean(cursor.jetSession, cursor.blockHeadersTableId, cursor.blockHeaderValidColumnId)
?? true;
return(!valid);
}
else
{
return(false);
}
}
}
private bool TryGetBlockId(UInt256 blockHash, out int blockId)
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
Api.JetSetCurrentIndex(cursor.jetSession, cursor.blockIdsTableId, "IX_BlockHash");
Api.MakeKey(cursor.jetSession, cursor.blockIdsTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(cursor.jetSession, cursor.blockIdsTableId, SeekGrbit.SeekEQ))
{
blockId = Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blockIdsTableId, cursor.blockIdsIdColumnId).Value;
return(true);
}
else
{
blockId = default(int);
return(false);
}
}
}
}
public bool TryGetBlockUnmintedTxes(UInt256 blockHash, out IImmutableList <UnmintedTx> unmintedTxes)
{
CheckTransaction();
using (SetSessionContext())
{
Api.JetSetCurrentIndex(this.jetSession, this.unmintedTxTableId, "IX_UnmintedBlockHash");
Api.MakeKey(this.jetSession, this.unmintedTxTableId, DbEncoder.EncodeUInt256(blockHash), MakeKeyGrbit.NewKey);
if (Api.TrySeek(this.jetSession, this.unmintedTxTableId, SeekGrbit.SeekEQ))
{
var unmintedTxesBytes = Api.RetrieveColumn(this.jetSession, this.unmintedTxTableId, this.unmintedDataColumnId);
unmintedTxes = DataDecoder.DecodeUnmintedTxList(unmintedTxesBytes);
return(true);
}
else
{
unmintedTxes = null;
return(false);
}
}
}
private int AddBlockIndex(EsentBlockTxesCursor cursor, UInt256 blockHash)
{
int blockIndex;
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blockIndexTableId, JET_prep.Insert))
{
Api.SetColumn(cursor.jetSession, cursor.blockIndexTableId, cursor.blockIndexBlockHashColumnId, DbEncoder.EncodeUInt256(blockHash));
blockIndex = Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blockIndexTableId, cursor.blockIndexBlockIndexColumnId, RetrieveColumnGrbit.RetrieveCopy).Value;
jetUpdate.Save();
}
return(blockIndex);
}
public bool TryAddBlockTransactions(UInt256 blockHash, IEnumerable <Transaction> blockTxes)
{
if (this.ContainsBlock(blockHash))
{
return(false);
}
try
{
using (var handle = this.cursorCache.TakeItem())
{
var cursor = handle.Item;
using (var jetTx = cursor.jetSession.BeginTransaction())
{
int blockId;
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blockIdsTableId, JET_prep.Insert))
{
blockId = Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blockIdsTableId, cursor.blockIdsIdColumnId, RetrieveColumnGrbit.RetrieveCopy).Value;
Api.SetColumn(cursor.jetSession, cursor.blockIdsTableId, cursor.blockIdsHashColumnId, DbEncoder.EncodeUInt256(blockHash));
jetUpdate.Save();
}
var txIndex = 0;
foreach (var tx in blockTxes)
{
AddTransaction(blockId, txIndex, tx.Hash, DataEncoder.EncodeTransaction(tx), cursor);
txIndex++;
}
// increase block count
Api.EscrowUpdate(cursor.jetSession, cursor.globalsTableId, cursor.blockCountColumnId, +1);
jetTx.CommitLazy();
return(true);
}
}
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
private void AddTransaction(int blockId, int txIndex, UInt256 txHash, byte[] txBytes, BlockTxesCursor cursor)
{
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blocksTableId, JET_prep.Insert))
{
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockIdColumnId, blockId);
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockTxIndexColumnId, txIndex);
//TODO i'm using -1 depth to mean not pruned, this should be interpreted as depth 0
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockDepthColumnId, -1);
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockTxHashColumnId, DbEncoder.EncodeUInt256(txHash));
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockTxBytesColumnId, txBytes);
jetUpdate.Save();
}
}
public void WriteNode(MerkleTreeNode node)
{
if (!node.Pruned)
{
throw new ArgumentException();
}
if (this.blockId != Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blocksTableId, cursor.blockIdColumnId).Value)
{
throw new InvalidOperationException();
}
using (var jetUpdate = cursor.jetSession.BeginUpdate(cursor.blocksTableId, JET_prep.Replace))
{
Debug.Assert(node.Index == Api.RetrieveColumnAsInt32(cursor.jetSession, cursor.blocksTableId, cursor.blockTxIndexColumnId).Value);
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockDepthColumnId, node.Depth);
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockTxHashColumnId, DbEncoder.EncodeUInt256(node.Hash));
Api.SetColumn(cursor.jetSession, cursor.blocksTableId, cursor.blockTxBytesColumnId, null);
jetUpdate.Save();
}
}
public bool TryAddUnspentTx(UnspentTx unspentTx)
{
if (!this.inTransaction)
{
throw new InvalidOperationException();
}
try
{
using (var jetUpdate = this.jetSession.BeginUpdate(this.unspentTxTableId, JET_prep.Insert))
{
Api.SetColumn(this.jetSession, this.unspentTxTableId, this.txHashColumnId, DbEncoder.EncodeUInt256(unspentTx.TxHash));
Api.SetColumn(this.jetSession, this.unspentTxTableId, this.blockIndexColumnId, unspentTx.BlockIndex);
Api.SetColumn(this.jetSession, this.unspentTxTableId, this.txIndexColumnId, unspentTx.TxIndex);
Api.SetColumn(this.jetSession, this.unspentTxTableId, this.outputStatesColumnId, DataEncoder.EncodeOutputStates(unspentTx.OutputStates));
jetUpdate.Save();
// increase unspent tx count
Api.EscrowUpdate(this.jetSession, this.globalsTableId, this.unspentTxCountColumnId, +1);
return(true);
}
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
