Return SendError from Sender::send on disconnect. #901
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Currently the
sendmethod forSender<T>returns a Future that never finishes if the channel is disconnected. This issue was brought up and this fix was proposed in issue #880.This changes brings the
sendmethod more inline with what the standard library's sender structs do, where they return an error on disconnect.If this pull request's fix isn't appropriate then hopefully it can at least get the ball rolling on something else.