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ipn, wgengine, magicsock, tsdns: be quieter and less aggressive when offline

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If no interfaces are up, calm down and stop spamming so much. It was
noticed as especially bad on Windows, but probably was bad
everywhere. I just have the best network conditions testing on a
Windows VM.

Updates #604
This commit is contained in:
Brad Fitzpatrick
2020-10-06 15:22:46 -07:00
parent 7616acd118
commit 6ee219a25d
6 changed files with 124 additions and 24 deletions
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8
ipn/local.go
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@ -129,6 +129,11 @@ func (b *LocalBackend) linkChange(major bool, ifst *interfaces.State) {
hadPAC := b.prevIfState.HasPAC()
b.prevIfState = ifst
networkUp := ifst.AnyInterfaceUp()
if b.c != nil {
go b.c.SetPaused(b.state == Stopped || !networkUp)
}
// If the PAC-ness of the network changed, reconfig wireguard+route to
// add/remove subnets.
if hadPAC != ifst.HasPAC() {
@ -1197,6 +1202,7 @@ func (b *LocalBackend) enterState(newState State) {
prefs := b.prefs
notify := b.notify
bc := b.c
networkUp := b.prevIfState.AnyInterfaceUp()
b.mu.Unlock()
if state == newState {
@ -1209,7 +1215,7 @@ func (b *LocalBackend) enterState(newState State) {
}
if bc != nil {
bc.SetPaused(newState == Stopped)
bc.SetPaused(newState == Stopped || !networkUp)
}
switch newState {