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improve debug logging, rw lock for notifier

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Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit is contained in:
Kristoffer Dalby 2023-09-11 06:08:44 -05:00 committed by Kristoffer Dalby
parent 3bef63bb80
commit 217ccd6540
3 changed files with 18 additions and 3 deletions
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1
hscontrol/auth_noise.go
View File

@ -23,6 +23,7 @@ func (ns *noiseServer) NoiseRegistrationHandler(
log.Trace().
Any("headers", req.Header).
Caller().
Msg("Headers")
body, _ := io.ReadAll(req.Body)

19
hscontrol/notifier/notifier.go
View File

@ -9,7 +9,7 @@ import (
)
type Notifier struct {
l sync.Mutex
l sync.RWMutex
nodes map[string]chan<- types.StateUpdate
}
@ -18,6 +18,9 @@ func NewNotifier() *Notifier {
}
func (n *Notifier) AddNode(machineKey string, c chan<- types.StateUpdate) {
log.Trace().Caller().Str("key", machineKey).Msg("acquiring lock to add node")
defer log.Trace().Caller().Str("key", machineKey).Msg("releasing lock to add node")
n.l.Lock()
defer n.l.Unlock()
@ -34,6 +37,9 @@ func (n *Notifier) AddNode(machineKey string, c chan<- types.StateUpdate) {
}
func (n *Notifier) RemoveNode(machineKey string) {
log.Trace().Caller().Str("key", machineKey).Msg("acquiring lock to remove node")
defer log.Trace().Caller().Str("key", machineKey).Msg("releasing lock to remove node")
n.l.Lock()
defer n.l.Unlock()
@ -54,14 +60,21 @@ func (n *Notifier) NotifyAll(update types.StateUpdate) {
}
func (n *Notifier) NotifyWithIgnore(update types.StateUpdate, ignore ...string) {
n.l.Lock()
defer n.l.Unlock()
log.Trace().Caller().Interface("type", update.Type).Msg("acquiring lock to notify")
defer log.Trace().
Caller().
Interface("type", update.Type).
Msg("releasing lock, finished notifing")
n.l.RLock()
defer n.l.RUnlock()
for key, c := range n.nodes {
if util.IsStringInSlice(ignore, key) {
continue
}
log.Trace().Caller().Str("machine", key).Strs("ignoring", ignore).Msg("sending update")
c <- update
}
}

1
hscontrol/poll_noise.go
View File

@ -31,6 +31,7 @@ func (ns *noiseServer) NoisePollNetMapHandler(
log.Trace().
Any("headers", req.Header).
Caller().
Msg("Headers")
body, _ := io.ReadAll(req.Body)