kaspad/app/protocol/flows/addressexchange/receiveaddresses.go
stasatdaglabs a34091991a [NOD-1538] Fix MinimalNetAdapter and don't insert BlockRelations before making sure the block's parents exist (#1074)
* [NOD-1538] Fix minimal net adapter.

* [NOD-1538] Don't insert block relation until we've validated that the block's parents exist.

* [NOD-1538] Don't hold addressManager in MinimalNetAdapter.

* [NOD-1538] Fix a comment in messages.proto.
2020-11-17 16:00:16 +02:00

43 lines
1.4 KiB
Go

package addressexchange
import (
"github.com/kaspanet/kaspad/app/appmessage"
"github.com/kaspanet/kaspad/app/protocol/common"
peerpkg "github.com/kaspanet/kaspad/app/protocol/peer"
"github.com/kaspanet/kaspad/app/protocol/protocolerrors"
"github.com/kaspanet/kaspad/infrastructure/config"
"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
)
// ReceiveAddressesContext is the interface for the context needed for the ReceiveAddresses flow.
type ReceiveAddressesContext interface {
Config() *config.Config
AddressManager() *addressmanager.AddressManager
}
// ReceiveAddresses asks a peer for more addresses if needed.
func ReceiveAddresses(context ReceiveAddressesContext, incomingRoute *router.Route, outgoingRoute *router.Route,
peer *peerpkg.Peer) error {
subnetworkID := peer.SubnetworkID()
msgGetAddresses := appmessage.NewMsgRequestAddresses(false, subnetworkID)
err := outgoingRoute.Enqueue(msgGetAddresses)
if err != nil {
return err
}
message, err := incomingRoute.DequeueWithTimeout(common.DefaultTimeout)
if err != nil {
return err
}
msgAddresses := message.(*appmessage.MsgAddresses)
if len(msgAddresses.AddressList) > addressmanager.GetAddressesMax {
return protocolerrors.Errorf(true, "address count exceeded %d", addressmanager.GetAddressesMax)
}
context.AddressManager().AddAddresses(msgAddresses.AddressList...)
return nil
}