/// <summary>
/// When the peer handshake, sends <see cref="SendCmpctMessage" /> and <see cref="SendHeadersMessage" /> if the
/// negotiated protocol allow that and update peer status based on its version message.
/// </summary>
/// <returns></returns>
protected override async ValueTask OnPeerHandshakedAsync()
{
HandshakeProcessor.HandshakeProcessorStatus handshakeStatus = PeerContext.Features.Get <HandshakeProcessor.HandshakeProcessorStatus>();
VersionMessage peerVersion = handshakeStatus.PeerVersion !;
await SendMessageAsync(minVersion : KnownVersion.V70012, new SendHeadersMessage()).ConfigureAwait(false);
}
/// <summary>
/// When the peer handshake, sends <see cref="SendCmpctMessage" /> and <see cref="SendHeadersMessage" /> if the
/// negotiated protocol allow that and update peer status based on its version message.
/// </summary>
/// <returns></returns>
protected override async ValueTask OnPeerHandshakedAsync()
{
HandshakeProcessor.HandshakeProcessorStatus handshakeStatus = PeerContext.Features.Get <HandshakeProcessor.HandshakeProcessorStatus>();
VersionMessage peerVersion = handshakeStatus.PeerVersion !;
_status.IsLimitedNode = PeerContext.IsLimitedNode;
_status.IsClient = PeerContext.IsClient;
_status.PeerStartingHeight = peerVersion.StartHeight;
_status.CanServeWitness = PeerContext.CanServeWitness;
await SendMessageAsync(minVersion : KnownVersion.V70012, new SendHeadersMessage()).ConfigureAwait(false);
if (IsSupported(KnownVersion.V70014))
{
// Tell our peer we are willing to provide version 1 or 2 cmpctblocks.
// However, we do not request new block announcements using cmpctblock messages.
// We send this to non-NODE NETWORK peers as well, because they may wish to request compact blocks from us.
if (_localServiceProvider.HasServices(NodeServices.Witness))
{
await SendMessageAsync(new SendCmpctMessage { AnnounceUsingCompactBlock = false, Version = 2 }).ConfigureAwait(false);
}
await SendMessageAsync(new SendCmpctMessage { AnnounceUsingCompactBlock = false, Version = 1 }).ConfigureAwait(false);
}
// if this peer is able to serve blocks, register it
if (!_status.IsClient)
{
_blockFetcherManager.RegisterFetcher(this);
}
// starts the header sync loop
_ = _headerSyncLoop.StartAsync(
label: $"{nameof(_headerSyncLoop)}-{PeerContext.PeerId}",
work: SyncLoopAsync,
interval: TimeSpan.FromMilliseconds(SYNC_LOOP_INTERVAL),
cancellation: PeerContext.ConnectionCancellationTokenSource.Token
);
}
