Example #1
0
        public async Task Run()
        {
            var db = Redis.GetDatabase();

            if (!await db.KeyExistsAsync("hs:nodes:all-nodes"))
            {
                Console.WriteLine("First run.. checking seeds");
                //get seeds
                List <Node> allIps = new List <Node>();

                foreach (var dseed in DNSSeeds)
                {
                    var ips = await Dns.GetHostAddressesAsync(dseed);

                    if (ips != null && ips.Length > 0)
                    {
                        allIps.AddRange(ips.Select(a => new Node()
                        {
                            IP       = new IPEndPoint(a, 8333),
                            LastSeen = new DateTime()
                        }));
                    }
                }

                foreach (var n in allIps)
                {
                    await ParallelTasks.WaitAsync();

                    UpdateNodeInfo(n);

                    ParallelTasks.Release();
                }

                Console.WriteLine("First run complete.");
            }

            while (Running)
            {
                var nodes = await GetNewNodes();

                foreach (var n in nodes)
                {
                    await ParallelTasks.WaitAsync();

                    UpdateNodeInfo(n);
                    ParallelTasks.Release();
                }

                Console.WriteLine("Scrape complete.");
                await Task.Delay(30000);
            }
        }