sync: Added WeakSender
to sync::broadcast::channel
#7100
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Motivation
Closing issue #7003. Add a type
WeakSender
to thesync::broadcast::channel
similar tosync::maps::channel
.Solution
The new
WeakSender
type just stores anArc<Shared<T>>
just like the normalSender
but activeWeakSenders
will not prevent the channel from being closed if allSender
s are dropped.Closes #7003.