private void Persist(Block block)
{
MultiValueDictionary <UInt256, ushort> unspents = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value = new byte[0];
db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(p), out value);
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
MultiValueDictionary <UInt256, ushort> unspent_antshares = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value = new byte[0];
db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_AntShare).Add(p), out value);
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
MultiValueDictionary <UInt256, ushort> unspent_votes = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value = new byte[0];
db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(p), out value);
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
Dictionary <UInt256, Fixed8> quantities = new Dictionary <UInt256, Fixed8>();
WriteBatch batch = new WriteBatch();
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Block).Add(block.Hash), block.Trim());
foreach (Transaction tx in block.Transactions)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Transaction).Add(tx.Hash), tx.ToArray());
switch (tx.Type)
{
case TransactionType.IssueTransaction:
foreach (TransactionResult result in tx.GetTransactionResults().Where(p => p.Amount < Fixed8.Zero))
{
if (quantities.ContainsKey(result.AssetId))
{
quantities[result.AssetId] -= result.Amount;
}
else
{
quantities.Add(result.AssetId, -result.Amount);
}
}
break;
case TransactionType.EnrollmentTransaction:
{
EnrollmentTransaction enroll_tx = (EnrollmentTransaction)tx;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(tx.Hash), true);
}
break;
case TransactionType.VotingTransaction:
unspent_votes.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
if (tx.Outputs[index].AssetId == AntShare.Hash)
{
unspent_votes.Add(tx.Hash, index);
}
}
break;
case TransactionType.RegisterTransaction:
{
RegisterTransaction reg_tx = (RegisterTransaction)tx;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Asset).Add(reg_tx.Hash), true);
}
break;
}
unspents.AddEmpty(tx.Hash);
unspent_antshares.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
unspents.Add(tx.Hash, index);
if (tx.Outputs[index].AssetId == AntShare.Hash)
{
unspent_antshares.Add(tx.Hash, index);
}
}
}
foreach (TransactionInput input in block.Transactions.SelectMany(p => p.GetAllInputs()))
{
if (input.PrevIndex == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(input.PrevHash));
}
unspents.Remove(input.PrevHash, input.PrevIndex);
unspent_antshares.Remove(input.PrevHash, input.PrevIndex);
unspent_votes.Remove(input.PrevHash, input.PrevIndex);
}
//统计AntCoin的发行量
{
Fixed8 amount_in = block.Transactions.SelectMany(p => p.References.Values.Where(o => o.AssetId == AntCoin.Hash)).Sum(p => p.Value);
Fixed8 amount_out = block.Transactions.SelectMany(p => p.Outputs.Where(o => o.AssetId == AntCoin.Hash)).Sum(p => p.Value);
if (amount_in != amount_out)
{
quantities.Add(AntCoin.Hash, amount_out - amount_in);
}
}
foreach (var unspent in unspents)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var unspent in unspent_antshares)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_AntShare).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_AntShare).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var unspent in unspent_votes)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var quantity in quantities)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.ST_QuantityIssued).Add(quantity.Key), (GetQuantityIssued(quantity.Key) + quantity.Value).GetData());
}
current_block_hash = block.Hash;
current_block_height = block.Hash == GenesisBlock.Hash ? 0 : current_block_height + 1;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.SYS_CurrentBlock), SliceBuilder.Begin().Add(block.Hash).Add(current_block_height));
db.Write(WriteOptions.Default, batch);
}
private void Persist(Block block)
{
const int UnclaimedItemSize = sizeof(ushort) + sizeof(uint);
MultiValueDictionary <UInt256, ushort> unspents = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(p), out value))
{
value = new byte[0];
}
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
MultiValueDictionary <UInt256, ushort, uint> unclaimed = new MultiValueDictionary <UInt256, ushort, uint>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(p), out value))
{
value = new byte[0];
}
byte[] data = value.ToArray();
return(Enumerable.Range(0, data.Length / UnclaimedItemSize).ToDictionary(i => data.ToUInt16(i * UnclaimedItemSize), i => data.ToUInt32(i * UnclaimedItemSize + sizeof(ushort))));
});
MultiValueDictionary <UInt256, ushort> unspent_votes = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(p), out value))
{
value = new byte[0];
}
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
Dictionary <UInt256, Fixed8> quantities = new Dictionary <UInt256, Fixed8>();
WriteBatch batch = new WriteBatch();
long amount_sysfee = GetSysFeeAmount(block.PrevBlock) + (long)block.Transactions.Sum(p => p.SystemFee);
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Header).Add(block.Hash), SliceBuilder.Begin().Add(amount_sysfee).Add(block.Trim()));
foreach (Transaction tx in block.Transactions)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Transaction).Add(tx.Hash), SliceBuilder.Begin().Add(block.Height).Add(tx.ToArray()));
if (tx.Attributes.Any(p => p.Usage == TransactionAttributeUsage.Vote))
{
unspent_votes.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
if (tx.Outputs[index].AssetId == AntShare.Hash)
{
unspent_votes.Add(tx.Hash, index);
}
}
}
switch (tx.Type)
{
case TransactionType.IssueTransaction:
foreach (TransactionResult result in tx.GetTransactionResults().Where(p => p.Amount < Fixed8.Zero))
{
if (quantities.ContainsKey(result.AssetId))
{
quantities[result.AssetId] -= result.Amount;
}
else
{
quantities.Add(result.AssetId, -result.Amount);
}
}
break;
case TransactionType.ClaimTransaction:
foreach (CoinReference input in ((ClaimTransaction)tx).Claims)
{
unclaimed.Remove(input.PrevHash, input.PrevIndex);
}
break;
case TransactionType.EnrollmentTransaction:
{
EnrollmentTransaction enroll_tx = (EnrollmentTransaction)tx;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(tx.Hash), true);
}
break;
case TransactionType.PublishTransaction:
{
PublishTransaction publish_tx = (PublishTransaction)tx;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Contract).Add(publish_tx.Code.ScriptHash), publish_tx.Code.ToArray());
}
break;
}
unspents.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
unspents.Add(tx.Hash, index);
}
}
foreach (var group in block.Transactions.SelectMany(p => p.Inputs).GroupBy(p => p.PrevHash))
{
int height;
Transaction tx = GetTransaction(ReadOptions.Default, group.Key, out height);
foreach (CoinReference input in group)
{
if (input.PrevIndex == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(input.PrevHash));
}
unspents.Remove(input.PrevHash, input.PrevIndex);
unspent_votes.Remove(input.PrevHash, input.PrevIndex);
if (tx?.Outputs[input.PrevIndex].AssetId == AntShare.Hash)
{
unclaimed.Add(input.PrevHash, input.PrevIndex, block.Height);
}
}
}
foreach (var unspent in unspents)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var spent in unclaimed)
{
if (spent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(spent.Key));
}
else
{
using (MemoryStream ms = new MemoryStream(spent.Value.Count * UnclaimedItemSize))
using (BinaryWriter w = new BinaryWriter(ms))
{
foreach (var pair in spent.Value)
{
w.Write(pair.Key);
w.Write(pair.Value);
}
w.Flush();
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(spent.Key), ms.ToArray());
}
}
}
foreach (var unspent in unspent_votes)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var quantity in quantities)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.ST_QuantityIssued).Add(quantity.Key), (GetQuantityIssued(quantity.Key) + quantity.Value).GetData());
}
batch.Put(SliceBuilder.Begin(DataEntryPrefix.SYS_CurrentBlock), SliceBuilder.Begin().Add(block.Hash).Add(block.Height));
db.Write(WriteOptions.Default, batch);
current_block_height = block.Height;
}
private void Persist(Block block)
{
const int UnclaimedItemSize = sizeof(ushort) + sizeof(uint);
MultiValueDictionary <UInt256, ushort> unspents = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(p), out value))
{
value = new byte[0];
}
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
MultiValueDictionary <UInt256, ushort, uint> unclaimed = new MultiValueDictionary <UInt256, ushort, uint>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(p), out value))
{
value = new byte[0];
}
byte[] data = value.ToArray();
return(Enumerable.Range(0, data.Length / UnclaimedItemSize).ToDictionary(i => BitConverter.ToUInt16(data, i * UnclaimedItemSize), i => BitConverter.ToUInt32(data, i * UnclaimedItemSize + sizeof(ushort))));
});
MultiValueDictionary <UInt256, ushort> unspent_votes = new MultiValueDictionary <UInt256, ushort>(p =>
{
Slice value;
if (!db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(p), out value))
{
value = new byte[0];
}
return(new HashSet <ushort>(value.ToArray().GetUInt16Array()));
});
Dictionary <UInt256, Fixed8> quantities = new Dictionary <UInt256, Fixed8>();
WriteBatch batch = new WriteBatch();
long amount_sysfee = GetSysFeeAmount(block.PrevBlock) + (long)block.Transactions.Sum(p => p.SystemFee);
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Header).Add(block.Hash), SliceBuilder.Begin().Add(amount_sysfee).Add(block.Trim()));
foreach (Transaction tx in block.Transactions)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Transaction).Add(tx.Hash), SliceBuilder.Begin().Add(block.Height).Add(tx.ToArray()));
if (tx.Attributes.Any(p => p.Usage == TransactionAttributeUsage.Vote))
{
unspent_votes.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
if (tx.Outputs[index].AssetId == AntShare.Hash)
{
unspent_votes.Add(tx.Hash, index);
}
}
}
switch (tx.Type)
{
case TransactionType.IssueTransaction:
foreach (TransactionResult result in tx.GetTransactionResults().Where(p => p.Amount < Fixed8.Zero))
{
if (quantities.ContainsKey(result.AssetId))
{
quantities[result.AssetId] -= result.Amount;
}
else
{
quantities.Add(result.AssetId, -result.Amount);
}
}
break;
case TransactionType.ClaimTransaction:
foreach (TransactionInput input in ((ClaimTransaction)tx).Claims)
{
unclaimed.Remove(input.PrevHash, input.PrevIndex);
}
break;
case TransactionType.EnrollmentTransaction:
{
EnrollmentTransaction enroll_tx = (EnrollmentTransaction)tx;
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(tx.Hash), true);
}
break;
case TransactionType.PublishTransaction:
foreach (byte[] script in ((PublishTransaction)tx).Contracts)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.DATA_Contract).Add(script.ToScriptHash()), script);
}
break;
}
unspents.AddEmpty(tx.Hash);
for (ushort index = 0; index < tx.Outputs.Length; index++)
{
unspents.Add(tx.Hash, index);
}
}
foreach (var group in block.Transactions.SelectMany(p => p.GetAllInputs()).GroupBy(p => p.PrevHash))
{
int height;
Transaction tx = GetTransaction(ReadOptions.Default, group.Key, out height);
foreach (TransactionInput input in group)
{
if (input.PrevIndex == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Enrollment).Add(input.PrevHash));
}
unspents.Remove(input.PrevHash, input.PrevIndex);
unspent_votes.Remove(input.PrevHash, input.PrevIndex);
if (tx?.Outputs[input.PrevIndex].AssetId == AntShare.Hash)
{
unclaimed.Add(input.PrevHash, input.PrevIndex, block.Height);
}
}
}
foreach (var unspent in unspents)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Unspent).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var spent in unclaimed)
{
if (spent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(spent.Key));
}
else
{
using (MemoryStream ms = new MemoryStream(spent.Value.Count * UnclaimedItemSize))
using (BinaryWriter w = new BinaryWriter(ms))
{
foreach (var pair in spent.Value)
{
w.Write(pair.Key);
w.Write(pair.Value);
}
w.Flush();
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Unclaimed).Add(spent.Key), ms.ToArray());
}
}
}
foreach (var unspent in unspent_votes)
{
if (unspent.Value.Count == 0)
{
batch.Delete(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key));
}
else
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.IX_Vote).Add(unspent.Key), unspent.Value.ToByteArray());
}
}
foreach (var quantity in quantities)
{
batch.Put(SliceBuilder.Begin(DataEntryPrefix.ST_QuantityIssued).Add(quantity.Key), (GetQuantityIssued(quantity.Key) + quantity.Value).GetData());
}
batch.Put(SliceBuilder.Begin(DataEntryPrefix.SYS_CurrentBlock), SliceBuilder.Begin().Add(block.Hash).Add(block.Height));
// There's a bug in .Net Core.
// When calling DB.Write(), it will throw LevelDBException sometimes.
// But when you try to catch the exception, the bug disappears.
// We shall remove the "try...catch" clause when Microsoft fix the bug.
byte retry = 0;
while (true)
{
try
{
db.Write(WriteOptions.Default, batch);
break;
}
catch (LevelDBException ex)
{
if (++retry >= 4)
{
throw;
}
File.AppendAllText("leveldb.log", ex.Message + "\r\n");
}
}
current_block_height = block.Height;
}