) GetBlockChain(
ILogger logger,
string storePath,
Guid?chainId = null,
IKeyValueStore stateKeyValueStore = null
)
{
var policySource = new BlockPolicySource(logger);
IBlockPolicy <NCAction> policy = policySource.GetPolicy();
IStagePolicy <NCAction> stagePolicy = new VolatileStagePolicy <NCAction>();
IStore store = new RocksDBStore(storePath);
if (stateKeyValueStore is null)
{
stateKeyValueStore = new RocksDBKeyValueStore(Path.Combine(storePath, "states"));
}
IStateStore stateStore = new TrieStateStore(stateKeyValueStore);
Guid chainIdValue
= chainId ??
store.GetCanonicalChainId() ??
throw new CommandExitedException(
"No canonical chain ID. Available chain IDs:\n " +
string.Join <Guid>("\n ", store.ListChainIds()),
1);
BlockHash genesisBlockHash;
try
{
genesisBlockHash = store.IterateIndexes(chainIdValue).First();
}
catch (InvalidOperationException)
{
throw new CommandExitedException(
$"The chain {chainIdValue} seems empty; try with another chain ID:\n " +
string.Join <Guid>("\n ", store.ListChainIds()),
1
);
}
Block <NCAction> genesis = store.GetBlock <NCAction>(
policy.GetHashAlgorithm,
genesisBlockHash
);
BlockChain <NCAction> chain = new BlockChain <NCAction>(
policy,
stagePolicy,
store,
stateStore,
genesis
);
return(chain, store, stateKeyValueStore, stateStore);
}
static void Main(string[] args)
{
if (args.Length < 2)
{
Console.Error.WriteLine("Too few arguments.");
Environment.Exit(1);
return;
}
string storePath = args[0];
int limit = int.Parse(args[1]);
int offset = 0;
if (args.Length >= 3)
{
offset = int.Parse(args[2]);
}
if (limit < 0)
{
Console.Error.WriteLine("Limit value must be greater than 0. Entered value: {0}", limit);
Environment.Exit(1);
return;
}
if (offset < 0)
{
Console.Error.WriteLine("Offset value must be greater than 0. Entered value: {0}", offset);
Environment.Exit(1);
return;
}
Log.Logger = new LoggerConfiguration().MinimumLevel.Verbose().WriteTo.Console().CreateLogger();
Libplanet.Crypto.CryptoConfig.CryptoBackend = new Secp256K1CryptoBackend <SHA256>();
var policySource = new BlockPolicySource(Log.Logger, LogEventLevel.Verbose);
IBlockPolicy <NCAction> policy =
policySource.GetPolicy(
// Explicitly set to lowest possible difficulty.
minimumDifficulty: BlockPolicySource.DifficultyStability,
maxBlockBytesPolicy: null,
minTransactionsPerBlockPolicy: null,
maxTransactionsPerBlockPolicy: null,
maxTransactionsPerSignerPerBlockPolicy: null,
authorizedMinersPolicy: null,
permissionedMinersPolicy: null);
IStagePolicy <NCAction> stagePolicy = new VolatileStagePolicy <NCAction>();
var store = new RocksDBStore(storePath);
if (!(store.GetCanonicalChainId() is Guid chainId))
{
Console.Error.WriteLine("There is no canonical chain: {0}", storePath);
Environment.Exit(1);
return;
}
if (!(store.IndexBlockHash(chainId, 0) is { } gHash))
{
Console.Error.WriteLine("There is no genesis block: {0}", storePath);
Environment.Exit(1);
return;
}
DateTimeOffset started = DateTimeOffset.UtcNow;
Block <NCAction> genesis = store.GetBlock <NCAction>(policy.GetHashAlgorithm, gHash);
IKeyValueStore stateKeyValueStore = new RocksDBKeyValueStore(Path.Combine(storePath, "states"));
var stateStore = new TrieStateStore(stateKeyValueStore);
var chain = new BlockChain <NCAction>(policy, stagePolicy, store, stateStore, genesis);
long height = chain.Tip.Index;
if (offset + limit > (int)height)
{
Console.Error.WriteLine(
"The sum of the offset and limit is greater than the chain tip index: {0}", height);
Environment.Exit(1);
return;
}
BlockHash[] blockHashes = store.IterateIndexes(chain.Id, offset, limit).Select((value, i) => value).ToArray();
Console.Error.WriteLine(
"Executing {0} blocks: {1}-{2} (inclusive).",
blockHashes.Length,
blockHashes[0],
blockHashes.Last()
);
Block <NCAction>[] blocks = blockHashes.Select(h => chain[h]).ToArray();
DateTimeOffset blocksLoaded = DateTimeOffset.UtcNow;
long txs = 0;
long actions = 0;
foreach (Block <NCAction> block in blocks)
{
Console.Error.WriteLine(
"Block #{0} {1}; {2} txs",
block.Index,
block.Hash,
block.Transactions.Count()
);
IEnumerable <ActionEvaluation> blockEvals =
chain.ExecuteActions(block, StateCompleterSet <NCAction> .Reject);
SetStates(
chain.Id,
store,
stateStore,
block,
blockEvals.ToArray(),
buildStateReferences: true
);
txs += block.Transactions.LongCount();
actions += block.Transactions.Sum(tx => tx.Actions.LongCount()) + 1;
}
DateTimeOffset ended = DateTimeOffset.UtcNow;
Console.WriteLine("Loading blocks\t{0}", blocksLoaded - started);
long execActionsTotalMilliseconds = (long)(ended - blocksLoaded).TotalMilliseconds;
Console.WriteLine("Executing actions\t{0}ms", execActionsTotalMilliseconds);
Console.WriteLine("Average per block\t{0}ms", execActionsTotalMilliseconds / blockHashes.Length);
Console.WriteLine("Average per tx\t{0}ms", execActionsTotalMilliseconds / txs);
Console.WriteLine("Average per action\t{0}ms", execActionsTotalMilliseconds / actions);
Console.WriteLine("Total elapsed\t{0}", ended - started);
}
public void PruneOutdatedChainsRocksDb()
{
var path = Path.Combine(Path.GetTempPath(), $"rocksdb_test_{Guid.NewGuid()}");
var store = new RocksDBStore(path);
RocksDb chainDb = null;
int KeysWithChainId(RocksDb db, Guid cid)
{
using (Iterator it = db.NewIterator())
{
byte[] key = cid.ToByteArray();
int count = 0;
for (it.SeekToFirst(); it.Valid(); it.Next())
{
if (!it.Key().Skip(1).ToArray().StartsWith(key))
{
continue;
}
count++;
}
return(count);
}
}
try
{
store.PutBlock(Fx.GenesisBlock);
store.PutBlock(Fx.Block1);
store.PutBlock(Fx.Block2);
store.PutBlock(Fx.Block3);
Guid cid1 = Guid.NewGuid();
int guidLength = cid1.ToByteArray().Length;
store.AppendIndex(cid1, Fx.GenesisBlock.Hash);
store.AppendIndex(cid1, Fx.Block1.Hash);
store.AppendIndex(cid1, Fx.Block2.Hash);
Assert.Single(store.ListChainIds());
Assert.Equal(
new[] { Fx.GenesisBlock.Hash, Fx.Block1.Hash, Fx.Block2.Hash },
store.IterateIndexes(cid1, 0, null));
Guid cid2 = Guid.NewGuid();
store.ForkBlockIndexes(cid1, cid2, Fx.Block1.Hash);
store.AppendIndex(cid2, Fx.Block2.Hash);
store.AppendIndex(cid2, Fx.Block3.Hash);
Assert.Equal(2, store.ListChainIds().Count());
Assert.Equal(
new[] { Fx.GenesisBlock.Hash, Fx.Block1.Hash, Fx.Block2.Hash, Fx.Block3.Hash },
store.IterateIndexes(cid2, 0, null));
Guid cid3 = Guid.NewGuid();
store.ForkBlockIndexes(cid1, cid3, Fx.Block2.Hash);
Assert.Equal(3, store.ListChainIds().Count());
Assert.Equal(
new[] { Fx.GenesisBlock.Hash, Fx.Block1.Hash, Fx.Block2.Hash },
store.IterateIndexes(cid3, 0, null));
Assert.Throws <InvalidOperationException>(() => store.PruneOutdatedChains());
store.PruneOutdatedChains(true);
store.SetCanonicalChainId(cid3);
store.PruneOutdatedChains();
Assert.Single(store.ListChainIds());
Assert.Equal(
new[] { Fx.GenesisBlock.Hash, Fx.Block1.Hash, Fx.Block2.Hash },
store.IterateIndexes(cid3, 0, null));
Assert.Equal(3, store.CountIndex(cid3));
store.Dispose();
store = null;
chainDb = RocksDb.Open(new DbOptions(), Path.Combine(path, "chain"));
Assert.Equal(0, KeysWithChainId(chainDb, cid1));
Assert.Equal(0, KeysWithChainId(chainDb, cid2));
Assert.NotEqual(0, KeysWithChainId(chainDb, cid3));
}
finally
{
store?.Dispose();
chainDb?.Dispose();
Directory.Delete(path, true);
}
}
