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Merge pull request #619 from Arceliar/bugfix

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Bugfix
This commit is contained in:
Neil Alexander 2019-11-26 09:18:55 +00:00 committed by GitHub
commit ca193bbfcd
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2 changed files with 16 additions and 8 deletions
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20
src/yggdrasil/link.go
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@ -64,6 +64,7 @@ type linkInterface struct {
closeTimer *time.Timer // Fires when the link has been idle so long we need to close it closeTimer *time.Timer // Fires when the link has been idle so long we need to close it
inSwitch bool // True if the switch is tracking this link inSwitch bool // True if the switch is tracking this link
stalled bool // True if we haven't been receiving any response traffic stalled bool // True if we haven't been receiving any response traffic
unstalled bool // False if an idle notification to the switch hasn't been sent because we stalled (or are first starting up)
} }
func (l *link) init(c *Core) error { func (l *link) init(c *Core) error {
@ -324,11 +325,15 @@ func (intf *linkInterface) notifySent(size int, isLinkTraffic bool) {
// Notify the switch that we're ready for more traffic, assuming we're not in a stalled state // Notify the switch that we're ready for more traffic, assuming we're not in a stalled state
func (intf *linkInterface) _notifySwitch() { func (intf *linkInterface) _notifySwitch() {
if !intf.inSwitch && !intf.stalled { if !intf.inSwitch {
intf.inSwitch = true if intf.stalled {
intf.link.core.switchTable.Act(intf, func() { intf.unstalled = false
intf.link.core.switchTable._idleIn(intf.peer.port) } else {
}) intf.inSwitch = true
intf.link.core.switchTable.Act(intf, func() {
intf.link.core.switchTable._idleIn(intf.peer.port)
})
}
} }
} }
@ -362,7 +367,10 @@ func (intf *linkInterface) notifyRead(size int) {
intf.stallTimer = nil intf.stallTimer = nil
} }
intf.stalled = false intf.stalled = false
intf._notifySwitch() if !intf.unstalled {
intf._notifySwitch()
intf.unstalled = true
}
if size > 0 && intf.stallTimer == nil { if size > 0 && intf.stallTimer == nil {
intf.stallTimer = time.AfterFunc(keepAliveTime, intf.notifyDoKeepAlive) intf.stallTimer = time.AfterFunc(keepAliveTime, intf.notifyDoKeepAlive)
} }

4
src/yggdrasil/switch.go
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@ -808,12 +808,12 @@ func (t *switchTable) _handleIdle(port switchPort) bool {
packet := buf.packets[0] packet := buf.packets[0]
coords := switch_getPacketCoords(packet.bytes) coords := switch_getPacketCoords(packet.bytes)
priority := float64(now.Sub(packet.time)) / float64(buf.size) priority := float64(now.Sub(packet.time)) / float64(buf.size)
if priority > bestPriority && t.portIsCloser(coords, port) { if priority >= bestPriority && t.portIsCloser(coords, port) {
best = streamID best = streamID
bestPriority = priority bestPriority = priority
} }
} }
if bestPriority != 0 { if best != "" {
buf := t.queues.bufs[best] buf := t.queues.bufs[best]
var packet switch_packetInfo var packet switch_packetInfo
// TODO decide if this should be LIFO or FIFO // TODO decide if this should be LIFO or FIFO