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router/registry: fix concurrent map iteration and map write (#1762)

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ben-toogood 2020-06-30 17:40:38 +01:00 committed by GitHub
parent 355ad2a1af
commit dcf01ebbf0
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4
router/default.go
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@ -551,6 +551,10 @@ func (r *router) Advertise() (<-chan *Advert, error) {
return nil, errors.New("not running") return nil, errors.New("not running")
} }
// we're mutating the subscribers so they need to be locked also
r.sub.Lock()
defer r.sub.Unlock()
// already advertising // already advertising
if r.eventChan != nil { if r.eventChan != nil {
advertChan := make(chan *Advert, 128) advertChan := make(chan *Advert, 128)