public static async Task <(IStore store, StoreError err)> Load(int cacheSize, string path, ILogger logger)
{
logger = logger.AddNamedContext("LocalDbStore");
logger.Verbose("Load store");
var db = new DBreezeEngine(new DBreezeConfiguration
{
DBreezeDataFolderName = path
});
var store = new LocalDbStore(
null,
null,
db,
path,
logger
);
using (var tx = store.BeginTx())
{
var(participants, err) = await store.DbGetParticipants();
if (err != null)
{
return(null, err);
}
var inmemStore = new InmemStore(participants, cacheSize, logger);
//read roots from db and put them in InmemStore
var roots = new Dictionary <string, Root>();
foreach (var p in participants)
{
Root root;
(root, err) = await store.DbGetRoot(p.Key);
if (err != null)
{
return(null, err);
}
roots[p.Key] = root;
}
err = inmemStore.Reset(roots);
if (err != null)
{
return(null, err);
}
store.participants = participants;
store.InMemStore = inmemStore;
tx.Commit();
}
return(store, null);
}
public ParticipantEventsCache(int size, Dictionary <string, int> participants, ILogger logger, string instanceName = null)
{
this.logger = logger.AddNamedContext("ParticipantEventsCache", instanceName);
Participants = participants;
Rim = new RollingIndexMap <string>(size, participants.GetValues());
}
public ParticipantEventsCache(int size, Dictionary <string, int> participants, ILogger logger, string instanceName = null)
{
var items = new Dictionary <string, RollingIndex <string> >();
foreach (var k in participants.Keys)
{
items.Add(k, new RollingIndex <string>(size));
}
Size = size;
Participants = participants;
this.logger = logger.AddNamedContext("ParticipantEventsCache");
ParticipantEvents = items;
}
public Node(Config conf, int id, CngKey key, Peer[] participants, IStore store, ITransport trans, IAppProxy proxy, ILogger loggerIn)
{
logger = loggerIn.AddNamedContext("Node", id.ToString());
LocalAddr = trans.LocalAddr;
var(pmap, _) = store.Participants();
commitCh = new AsyncProducerConsumerQueue <Block>(400);
commitChMonitor = new AsyncMonitor();
Controller = new Controller(id, key, pmap, store, commitCh, logger);
coreLock = new AsyncLock();
PeerSelector = new RandomPeerSelector(participants, LocalAddr);
selectorLock = new AsyncLock();
Id = id;
Store = store;
Conf = conf;
Trans = trans;
netCh = trans.Consumer;
netChMonitor = new AsyncMonitor();
Proxy = proxy;
this.participants = participants;
submitCh = proxy.SubmitCh();
submitChMonitor = new AsyncMonitor();
controlTimer = ControlTimer.NewRandomControlTimer(conf.HeartbeatTimeout);
nodeState = new NodeState();
//Initialize as Babbling
nodeState.SetStarting(true);
nodeState.SetState(NodeStateEnum.Babbling);
}
public InmemStore(Dictionary <string, int> participants, int cacheSize, ILogger logger)
{
var rts = new Dictionary <string, Root>();
foreach (var p in participants)
{
rts.Add(p.Key, Root.NewBaseRoot());
}
this.participants = participants;
this.cacheSize = cacheSize;
this.logger = logger.AddNamedContext("InmemStore");
eventCache = new LruCache <string, Event>(cacheSize, null, logger, "EventCache");
roundCache = new LruCache <int, RoundInfo>(cacheSize, null, logger, "RoundCache");
consensusCache = new RollingIndex <string>(cacheSize);
participantEventsCache = new ParticipantEventsCache(cacheSize, participants, logger);
roots = rts;
lastRound = -1;
}
public Hashgraph(Dictionary <string, int> participants, IStore store, Channel <Event> commitCh, ILogger logger)
{
this.logger = logger.AddNamedContext("HashGraph");
var reverseParticipants = participants.ToDictionary(p => p.Value, p => p.Key);
var cacheSize = store.CacheSize();
Participants = participants;
ReverseParticipants = reverseParticipants;
Store = store;
CommitChannel = commitCh;
AncestorCache = new LruCache <string, bool>(cacheSize, null, logger, "AncestorCache");
SelfAncestorCache = new LruCache <string, bool>(cacheSize, null, logger, "SelfAncestorCache");
OldestSelfAncestorCache = new LruCache <string, string>(cacheSize, null, logger, "OldestAncestorCache");
StronglySeeCache = new LruCache <string, bool>(cacheSize, null, logger, "StronglySeeCache");
ParentRoundCache = new LruCache <string, ParentRoundInfo>(cacheSize, null, logger, "ParentRoundCache");
RoundCache = new LruCache <string, int>(cacheSize, null, logger, "RoundCache");
UndeterminedEvents = new List <string>();
SuperMajority = 2 * participants.Count / 3 + 1;
UndecidedRounds = new Queue <int>(); //initialize
}
//LoadBadgerStore creates a Store from an existing database
public static async Task <(IStore store, StoreError err)> New(Dictionary <string, int> participants, int cacheSize, string path, ILogger logger)
{
logger = logger.AddNamedContext("LocalDbStore");
logger.Verbose("New store");
var inmemStore = new InmemStore(participants, cacheSize, logger);
var db = new DBreezeEngine(new DBreezeConfiguration
{
//Storage = DBreezeConfiguration.eStorage.MEMORY,
DBreezeDataFolderName = path
});
var store = new LocalDbStore(
participants,
inmemStore,
db,
path,
logger
);
using (var tx = store.BeginTx())
{
var err = await store.DbSetParticipants(participants);
if (err != null)
{
return(null, err);
}
err = await store.DbSetRoots(inmemStore.Roots);
if (err != null)
{
return(null, err);
}
tx.Commit();
}
return(store, null);
}
// NewLRU constructs an LRU of the given size
public LruCache(int size, Action <TKey, TValue> evictAction, ILogger logger, string instanceName = null)
{
this.size = size;
this.evictAction = evictAction;
this.logger = logger.AddNamedContext("LruCache", instanceName);
}
public InMemAppProxy(int id, ILogger logger)
{
submitCh = new AsyncProducerConsumerQueue <byte[]>();
committedTransactions = new List <byte[]>();
this.logger = logger.AddNamedContext(nameof(InMemAppProxy), id.ToString());
}