PROPOSAL: Add newBroadcastChan :: IO (Chan a) to Control.Concurrent.Chan

Ola! Control.Concurrent.STM.TChan has the “newBroadcastTChan :: STM (TChan a)”, this creates a “write-only” TChan to avoid any space leaks when a Chan is written too but never read from (for example, when dupTChan is used to hand a copy to threads). Unfortunately, no such variant seems to exist for the normal Chan? I have the following code: foo :: Chan a -> IO Foo foo broadcast = do newListener <- dupChan broadcast forkIO $ doStuffWith newListener This means the original Chan is never read from and much like the problem with TChan, values keep piling up in the original channel, causing a space leak. I propose adding newBroadcastChan :: IO (Chan a) The obvious Chan equivalent of newBroadcastTChan, which creates a write-only channel without read end, thus avoiding this space leak. Discussion: 2 weeks? Cheers, Merijn