5
0
mirror of https://github.com/cwinfo/yggdrasil-go.git synced 2024-11-10 02:50:27 +00:00

Merge pull request #648 from Arceliar/search

Search updates
This commit is contained in:
Arceliar 2020-02-01 14:15:30 -06:00 committed by GitHub
commit 0da433f5d2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 14 additions and 11 deletions

View File

@ -24,8 +24,8 @@ import (
"github.com/yggdrasil-network/yggdrasil-go/src/config"
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
"github.com/yggdrasil-network/yggdrasil-go/src/types"
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
)
type MTU = types.MTU

View File

@ -7,8 +7,8 @@ import (
"time"
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
"github.com/yggdrasil-network/yggdrasil-go/src/util"
"github.com/yggdrasil-network/yggdrasil-go/src/types"
"github.com/yggdrasil-network/yggdrasil-go/src/util"
"github.com/Arceliar/phony"
)

View File

@ -38,6 +38,8 @@ type searchInfo struct {
visited crypto.NodeID // Closest address visited so far
callback func(*sessionInfo, error)
// TODO context.Context for timeout and cancellation
send uint64 // log number of requests sent
recv uint64 // log number of responses received
}
// This stores a map of active searches.
@ -75,6 +77,7 @@ func (s *searches) createSearch(dest *crypto.NodeID, mask *crypto.NodeID, callba
// If there is, it adds the response info to the search and triggers a new search step.
// If there's no ongoing search, or we if the dhtRes finished the search (it was from the target node), then don't do anything more.
func (sinfo *searchInfo) handleDHTRes(res *dhtRes) {
sinfo.recv++
if res == nil || sinfo.checkDHTRes(res) {
// Either we don't recognize this search, or we just finished it
return
@ -87,20 +90,13 @@ func (sinfo *searchInfo) handleDHTRes(res *dhtRes) {
// Adds the information from a dhtRes to an ongoing search.
// Info about a node that has already been visited is not re-added to the search.
// Duplicate information about nodes toVisit is deduplicated (the newest information is kept).
// The toVisit list is sorted in ascending order of keyspace distance from the destination.
func (sinfo *searchInfo) addToSearch(res *dhtRes) {
// Add responses to toVisit if closer to dest than the res node
from := dhtInfo{key: res.Key, coords: res.Coords}
if dht_ordered(&sinfo.dest, from.getNodeID(), &sinfo.visited) {
// Closer to the destination, so update visited
sinfo.visited = *from.getNodeID()
}
for _, info := range res.Infos {
if *info.getNodeID() == sinfo.visited {
// dht_ordered could return true here, but we want to skip it in this case
continue
}
if dht_ordered(&sinfo.dest, info.getNodeID(), &sinfo.visited) {
if dht_ordered(&sinfo.dest, info.getNodeID(), &sinfo.visited) && *info.getNodeID() != sinfo.visited {
// Response is closer to the destination
sinfo.toVisit = append(sinfo.toVisit, info)
}
@ -124,6 +120,7 @@ func (sinfo *searchInfo) doSearchStep() {
sinfo.searches.router.dht.addCallback(&rq, sinfo.handleDHTRes)
sinfo.searches.router.dht.ping(next, &sinfo.dest)
sinfo.time = time.Now()
sinfo.send++
}
sinfo.toVisit = sinfo.toVisit[:0]
}
@ -163,7 +160,13 @@ func (s *searches) newIterSearch(dest *crypto.NodeID, mask *crypto.NodeID, callb
// If the response is from the target, get/create a session, trigger a session ping, and return true.
// Otherwise return false.
func (sinfo *searchInfo) checkDHTRes(res *dhtRes) bool {
them := crypto.GetNodeID(&res.Key)
from := dhtInfo{key: res.Key, coords: res.Coords}
if dht_ordered(&sinfo.dest, from.getNodeID(), &sinfo.visited) {
// Closer to the destination, so update visited
sinfo.searches.router.core.log.Debugln("Updating search:", sinfo.dest, *from.getNodeID(), sinfo.send, sinfo.recv)
sinfo.visited = *from.getNodeID()
}
them := from.getNodeID()
var destMasked crypto.NodeID
var themMasked crypto.NodeID
for idx := 0; idx < crypto.NodeIDLen; idx++ {