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Within LTS Haskell 24.52 (ghc-9.10.3)

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  1. tryReadTBChan :: TBChan a -> STM (Maybe a)

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTBChan which does not retry. Instead it returns Nothing if no value is available.

  2. tryReadTBMChan :: TBMChan a -> STM (Maybe (Maybe a))

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTBMChan which does not retry. Instead it returns Just Nothing if the channel is open but no value is available; it still returns Nothing if the channel is closed and empty.

  3. tryReadTBMQueue :: TBMQueue a -> STM (Maybe (Maybe a))

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTBMQueue which does not retry. Instead it returns Just Nothing if the queue is open but no value is available; it still returns Nothing if the queue is closed and empty.

  4. tryReadTBQueue :: TBQueue a -> STM (Maybe a)

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTBQueue which does not retry. Instead it returns Nothing if no value is available.

  5. tryReadTChan :: TChan a -> STM (Maybe a)

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTChan which does not retry. Instead it returns Nothing if no value is available.

  6. tryReadTMChan :: TMChan a -> STM (Maybe (Maybe a))

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTMChan which does not retry. Instead it returns Just Nothing if the channel is open but no value is available; it still returns Nothing if the channel is closed and empty.

  7. tryReadTMQueue :: TMQueue a -> STM (Maybe (Maybe a))

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTMQueue which does not retry. Instead it returns Just Nothing if the queue is open but no value is available; it still returns Nothing if the queue is closed and empty.

  8. tryReadTMVar :: TMVar a -> STM (Maybe a)

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTMVar which does not retry. Instead it returns Nothing if no value is available.

  9. tryReadTQueue :: TQueue a -> STM (Maybe a)

    classy-prelude-yesod ClassyPrelude.Yesod

    A version of readTQueue which does not retry. Instead it returns Nothing if no value is available.

  10. yieldThread :: MonadIO m => m ()

    classy-prelude-yesod ClassyPrelude.Yesod

    Originally yield.

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