package syncmgr import ( "github.com/CityOfZion/neo-go/pkg/chain" "github.com/CityOfZion/neo-go/pkg/wire/payload" ) // headersModeOnHeaders is called when the sync manager is headers mode // and receives a header. func (s *Syncmgr) headersModeOnHeaders(peer SyncPeer, hdrs []*payload.BlockBase) error { // If we are in Headers mode, then we just need to process the headers // Note: For the un-optimised version, we move straight to blocksOnly mode firstHash := hdrs[0].Hash err := s.cfg.ProcessHeaders(hdrs) if err == nil { // Update syncmgr last header s.headerHash = hdrs[len(hdrs)-1].Hash s.syncmode = blockMode return s.cfg.RequestBlock(firstHash) } // Check whether it is a validation error, or a database error if _, ok := err.(*chain.ValidationError); ok { // If we get a validation error we re-request the headers // the method will automatically fetch from a different peer // XXX: Add increment banScore for this peer return s.cfg.FetchHeadersAgain(firstHash) } // This means it is a database error. We have no way to recover from this. panic(err.Error()) } // headersModeOnBlock is called when the sync manager is headers mode // and receives a block. func (s *Syncmgr) headersModeOnBlock(peer SyncPeer, block payload.Block) error { // While in headers mode, ignore any blocks received return nil }