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network: request blocks when there is a ping with bigger than ours height

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Turns out, C# node no longer broadcasts an Inv when it's creating a block,
instead it sends a ping and if we're not paying attention to the height
specified there we're technically missing a new block. Of course we'll get it
later after ping timer expiration and regular ping/pong sequence, but that's
delaying it for no good reason.
This commit is contained in:
Roman Khimov 2020-08-14 16:22:15 +03:00
parent 92f37a5d36
commit c8cc91eeee
4 changed files with 26 additions and 0 deletions
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10
pkg/network/server.go
View file

@ -453,6 +453,16 @@ func (s *Server) handleBlockCmd(p Peer, block *block.Block) error {
// handlePing processes ping request.
func (s *Server) handlePing(p Peer, ping *payload.Ping) error {
err := p.HandlePing(ping)
if err != nil {
return err
}
if s.chain.BlockHeight() < ping.LastBlockIndex {
err = s.requestBlocks(p)
if err != nil {
return err
}
}
return p.EnqueueP2PMessage(NewMessage(CMDPong, payload.NewPing(s.chain.BlockHeight(), s.id)))
}