async Task DiscoveryLoop()
{
while (!_node.HasQuit)
{
if (_discoverRounds > 10)
{
await Task.Delay(Time.Minutes(60), _node.QuitToken); // do a discovery every hour
}
else
{
await Task.Delay(Time.Seconds(4 * _discoverRounds), _node.QuitToken);
}
if (_node.HasQuit)
{
return;
}
try
{
var nodes = _bucket.GetNearNodes(LocalId);
var count = 0;
foreach (var node in nodes)
{
if (node.IsPublicEndPoint)
{
if (!await QueryEndPoint(node.PublicEndPoint, true))
{
_bucket.Remove(node.NodeId);
}
if (count >= 5)
{
break;
}
}
}
nodes = _bucket.GetFarNodes();
count = 0;
foreach (var node in nodes)
{
if (node.IsPublicEndPoint)
{
if (!await QueryEndPoint(node.PublicEndPoint, true))
{
_bucket.Remove(node.NodeId);
}
if (count >= 5)
{
break;
}
}
}
var packedNodes = _bucket.PackNodes();
if (packedNodes != null)
{
_storage.WriteFileBytes("nodes.data", packedNodes);
}
}
catch (Exception ex)
{
Log.IgnoreException(ex, this);
}
++_discoverRounds;
}
}