private static void testLookupPerformance(ChordNode node, ILogger logger)
{
// initialize random number generator
using (var rng = new RNGCryptoServiceProvider())
{
// send random key lookup messages for testing the chord network
while (true)
{
// generate a random key
byte[] bytes = new byte[20];
rng.GetBytes(bytes);
// send a lookup request for the generated key
node.LookupKey(new BigInteger(bytes))
.ContinueWith(e =>
logger.LogInformation(
$"Lookup: key '{ HexString.Deserialize(bytes) }' " +
$"is managed by node with id '{ HexString.Deserialize(e.Result.NodeId.ToByteArray()) }'"))
.Wait();
// sleep for 1 sec
Thread.Sleep(1000);
}
}
}
private static ChordNode initChord(ILogger logger)
{
// retrieve the node's IP address and port from the local IP configuration
var local = new IPEndPoint(IpSettings.GetChordIpv4Address(), IpSettings.GetChordPort());
logger.LogInformation($"Initializing: endpoint={ local.Address }:{ local.Port }, " +
$"node id={ HexString.Deserialize(HashingHelper.GetSha1Hash(local)) }");
var netId = IpSettings.GetIpv4NetworkId();
var broadcast = IpSettings.GetIpv4Broadcast();
// connect the chord node to the chord network
var node = new ChordNode(local, logger);
node.FindBootstrapNode(netId, broadcast)
.ContinueWith(x => node.JoinNetwork(x.Result)).Wait();
// write initialization success message to console
logger.LogInformation($"Initializing: successful! Going into idle state ...");
return(node);
}