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attempt to prevent incorrect idle notification in switch, needs testing

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This commit is contained in:
Arceliar 2019-11-24 18:24:17 -06:00
parent a9cfa5bc0d
commit 27cc57dbbc
1 changed files with 13 additions and 6 deletions
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19
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 +367,9 @@ 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()
}
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)
} }