protected void BootstrapWithAPeer(int peerBootstrappingIdx)
{
Dht dht = dhts[peerBootstrappingIdx];
var peerList = knownPeers.ExceptBy(dht, c => c.ID).ToList();
Dht bootstrapWith = peerList[rnd.Next(peerList.Count)];
dht.Bootstrap(bootstrapWith.Contact);
}
public void ParallelBootstrapOutsideBootstrappingBucketTest()
{
// We need 32 virtual protocols. One for the bootstrap peer,
// 20 for the nodes the bootstrap peer knows about, 10 for the nodes
// one of those nodes knows about, and one for us to rule them all.
VirtualProtocol[] vp = new VirtualProtocol[32];
32.ForEach((i) => vp[i] = new VirtualProtocol());
// Us, ID doesn't matter.
Dht dhtUs = new Dht(ID.RandomID, vp[0], () => new VirtualStorage(), new ParallelRouter());
vp[0].Node = dhtUs.Router.Node;
// Our bootstrap peer
// All ID's are < 2^159
Dht dhtBootstrap = new Dht(ID.Zero.RandomizeBeyond(Constants.ID_LENGTH_BITS - 1), vp[1], () => new VirtualStorage(), new ParallelRouter());
vp[1].Node = dhtBootstrap.Router.Node;
Node n = null;
// Our boostrapper knows 20 contacts
20.ForEach((i) =>
{
ID id;
// All ID's are < 2^159 except the last one, which is >= 2^159
// which will force a bucket split for _us_
if (i < 19)
{
id = ID.Zero.RandomizeBeyond(Constants.ID_LENGTH_BITS - 1);
}
else
{
id = ID.Max;
}
Contact c = new Contact(vp[i + 2], id);
n = new Node(c, new VirtualStorage());
vp[i + 2].Node = n;
dhtBootstrap.Router.Node.BucketList.AddContact(c);
});
// One of those nodes, in this case specifically the last one we added to our bootstrapper
// so that it isn't in the bucket of our bootstrapper, we add 10 contacts. The ID's of
// those contacts don't matter.
10.ForEach((i) =>
{
Contact c = new Contact(vp[i + 22], ID.RandomID);
Node n2 = new Node(c, new VirtualStorage());
vp[i + 22].Node = n;
n.BucketList.AddContact(c); // Note we're adding these contacts to the 10th node.
});
dhtUs.Bootstrap(dhtBootstrap.Router.Node.OurContact);
Assert.IsTrue(dhtUs.Router.Node.BucketList.Buckets.Sum(c => c.Contacts.Count) == 31, "Expected our peer to have 31 contacts.");
}
public void ParallelBootstrapWithinBootstrappingBucketTest()
{
// We need 22 virtual protocols. One for the bootstrap peer,
// 10 for the nodes the bootstrap peer knows about, and 10 for the nodes
// one of those nodes knows about, and one for us to rule them all.
VirtualProtocol[] vp = new VirtualProtocol[22];
22.ForEach((i) => vp[i] = new VirtualProtocol());
// Us
Dht dhtUs = new Dht(ID.RandomID, vp[0], () => new VirtualStorage(), new ParallelRouter());
vp[0].Node = dhtUs.Router.Node;
// Our bootstrap peer
Dht dhtBootstrap = new Dht(ID.RandomID, vp[1], () => new VirtualStorage(), new ParallelRouter());
vp[1].Node = dhtBootstrap.Router.Node;
Node n = null;
// Our boostrapper knows 10 contacts
10.ForEach((i) =>
{
Contact c = new Contact(vp[i + 2], ID.RandomID);
n = new Node(c, new VirtualStorage());
vp[i + 2].Node = n;
dhtBootstrap.Router.Node.BucketList.AddContact(c);
});
// One of those nodes, in this case the last one we added to our bootstrapper
// for convenience, knows about 10 other contacts.
10.ForEach((i) =>
{
Contact c = new Contact(vp[i + 12], ID.RandomID);
Node n2 = new Node(c, new VirtualStorage());
vp[i + 12].Node = n;
n.BucketList.AddContact(c); // Note we're adding these contacts to the 10th node.
});
dhtUs.Bootstrap(dhtBootstrap.Router.Node.OurContact);
Assert.IsTrue(dhtUs.Router.Node.BucketList.Buckets.Sum(c => c.Contacts.Count) == 11, "Expected our peer to get 11 contacts.");
}