mirror of
https://github.com/kaspanet/kaspad.git
synced 2025-06-22 05:56:43 +00:00
9d434de4a5
* [NOD-640] Revamp blueBlocksBetween to return up to maxEntries from highNode's antiFuture. * [NOD-640] Fix bad traversal. * [NOD-640] Use more accurate len. * [NOD-640] Use more appropriate len in another place. * [NOD-640] Remove the whole business with highNode's anticone. * [NOD-640] Rename highNodeAntiFuture to candidateNodes. * [NOD-640] Explain the highNode.blueScore-lowNode.blueScore+1 approximation. * [NOD-640] UpHeap -> upHeap. * [NOD-640] Fix off-by-one error. * [NOD-640] Rename blueBlocksBetween to antiPastBetween, * [NOD-640] upHeap -> up-heap. * [NOD-640] Use a classic for to populate nodes. * [NOD-640] Reworded a comment. * [NOD-640] Clarify a comment. * [NOD-640] Fix nodes declaration.
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
package p2p
|
|
|
|
import (
|
|
"github.com/kaspanet/kaspad/peer"
|
|
"github.com/kaspanet/kaspad/wire"
|
|
)
|
|
|
|
// OnGetBlockInvs is invoked when a peer receives a getblockinvs kaspa
|
|
// message.
|
|
// It finds the blue future between msg.LowHash and msg.HighHash
|
|
// and send the invs to the requesting peer.
|
|
func (sp *Peer) OnGetBlockInvs(_ *peer.Peer, msg *wire.MsgGetBlockInvs) {
|
|
dag := sp.server.DAG
|
|
// We want to prevent a situation where the syncing peer needs
|
|
// to call getblocks once again, but the block we sent it
|
|
// won't affect its selected chain, so next time it'll try
|
|
// to find the highest shared chain block, it'll find the
|
|
// same one as before.
|
|
// To prevent that we use blockdag.FinalityInterval as maxHashes.
|
|
// This way, if one getblocks is not enough to get the peer
|
|
// synced, we can know for sure that its selected chain will
|
|
// change, so we'll have higher shared chain block.
|
|
hashList, err := dag.AntiPastHashesBetween(msg.LowHash, msg.HighHash,
|
|
wire.MaxInvPerMsg)
|
|
if err != nil {
|
|
peerLog.Warnf("Error getting antiPast hashes between %s and %s: %s", msg.LowHash, msg.HighHash, err)
|
|
sp.Disconnect()
|
|
return
|
|
}
|
|
|
|
// Generate inventory message.
|
|
invMsg := wire.NewMsgInv()
|
|
for i := range hashList {
|
|
iv := wire.NewInvVect(wire.InvTypeSyncBlock, hashList[i])
|
|
invMsg.AddInvVect(iv)
|
|
}
|
|
|
|
// Send the inventory message if there is anything to send.
|
|
if len(invMsg.InvList) > 0 {
|
|
sp.QueueMessage(invMsg, nil)
|
|
}
|
|
}
|