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Improve waiting when searching the system state table

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Daniel
2020-05-19 09:54:50 +02:00
parent 3f9876fc09
commit c146a61704
1 changed files with 6 additions and 4 deletions
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10
network/state/lookup.go
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@@ -40,7 +40,7 @@ var (
udp4Lock sync.Mutex udp4Lock sync.Mutex
udp6Lock sync.Mutex udp6Lock sync.Mutex
waitTime = 3 * time.Millisecond baseWaitTime = 3 * time.Millisecond
) )
func Lookup(pktInfo *packet.Info) (pid int, inbound bool, err error) { func Lookup(pktInfo *packet.Info) (pid int, inbound bool, err error) {
@@ -94,7 +94,7 @@ func searchTCP(
localPort := pktInfo.LocalPort() localPort := pktInfo.LocalPort()
// search until we find something // search until we find something
for i := 0; i < 5; i++ { for i := 0; i < 7; i++ {
// always search listeners first // always search listeners first
for _, socketInfo := range listeners { for _, socketInfo := range listeners {
if localPort == socketInfo.Local.Port && if localPort == socketInfo.Local.Port &&
@@ -112,7 +112,8 @@ func searchTCP(
} }
// we found nothing, we could have been too fast, give the kernel some time to think // we found nothing, we could have been too fast, give the kernel some time to think
time.Sleep(waitTime) // back off timer: with 3ms baseWaitTime: 3, 6, 9, 12, 15, 18, 21ms - 84ms in total
time.Sleep(time.Duration(i+1) * baseWaitTime)
// refetch lists // refetch lists
connections, listeners = updateTables() connections, listeners = updateTables()
@@ -162,7 +163,8 @@ func searchUDP(
} }
// we found nothing, we could have been too fast, give the kernel some time to think // we found nothing, we could have been too fast, give the kernel some time to think
time.Sleep(waitTime) // back off timer: with 3ms baseWaitTime: 3, 6, 9, 12, 15, 18, 21ms - 84ms in total
time.Sleep(time.Duration(i+1) * baseWaitTime)
// refetch lists // refetch lists
binds = updateTable() binds = updateTable()