Move ping code to separate file (no changes)

Commands.go

@@ -10,7 +10,6 @@ import (
 	"bytes"
 	"fmt"
 	"log"
-	"time"
 
 	"github.com/PeernetOfficial/core/dht"
 )
@@ -201,63 +200,6 @@ func (peer *PeerInfo) cmdLocalDiscovery(msg *MessageAnnouncement) {
 	peer.sendAnnouncement(true, ShouldSendFindSelf(), nil, nil, nil, &bootstrapFindSelf{})
 }
 
-// pingTime is the time in seconds to send out ping messages
-const pingTime = 10
-
-// connectionInvalidate is the threshold in seconds to invalidate formerly active connections that no longer receive incoming packets.
-const connectionInvalidate = 22
-
-// connectionRemove is the threshold in seconds to remove inactive connections in case there is at least one active connection known.
-const connectionRemove = 2 * 60
-
-// autoPingAll sends out regular ping messages to all connections of all peers. This allows to detect invalid connections and eventually drop them.
-func autoPingAll() {
-	for {
-		time.Sleep(time.Second)
-		thresholdInvalidate1 := time.Now().Add(-connectionInvalidate * time.Second)
-		thresholdInvalidate2 := time.Now().Add(-connectionInvalidate * time.Second * 4)
-		thresholdPingOut1 := time.Now().Add(-pingTime * time.Second)
-		thresholdPingOut2 := time.Now().Add(-pingTime * time.Second * 4)
-
-		for _, peer := range PeerlistGet() {
-			// first handle active connections
-			for _, connection := range peer.GetConnections(true) {
-				thresholdPing := thresholdPingOut1
-				thresholdInv := thresholdInvalidate1
-
-				if connection.Status == ConnectionRedundant {
-					thresholdPing = thresholdPingOut2
-					thresholdInv = thresholdInvalidate2
-				}
-
-				if connection.LastPacketIn.Before(thresholdInv) {
-					peer.invalidateActiveConnection(connection)
-					continue
-				}
-
-				if connection.LastPacketIn.Before(thresholdPing) && connection.LastPingOut.Before(thresholdPing) {
-					peer.pingConnection(connection)
-					continue
-				}
-			}
-
-			// handle inactive connections
-			for _, connection := range peer.GetConnections(false) {
-				// If the inactive connection is expired, remove it; although only if there is at least one active connection, or two other inactive ones.
-				if (len(peer.connectionActive) >= 1 || len(peer.connectionInactive) > 2) && connection.Expires.Before(time.Now()) {
-					peer.removeInactiveConnection(connection)
-					continue
-				}
-
-				// if no ping was sent recently, send one now
-				if connection.LastPingOut.Before(thresholdPingOut1) {
-					peer.pingConnection(connection)
-				}
-			}
-		}
-	}
-}
-
 // SendChatAll sends a text message to all peers
 func SendChatAll(text string) {
 	for _, peer := range PeerlistGet() {