Re: Proposal: Improve the API for TChan, TMVar, and TVar

On 3/26/11 11:43 AM, Antoine Latter wrote:

On Sat, Mar 26, 2011 at 6:26 AM, Bas van Dijk wrote:

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On 26 March 2011 10:29, wren ng thornton wrote:

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

+1 if we also add: tryReadChan :: Chan a -> IO (Maybe a)

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peekTChan :: TChan a -> STM a tryPeekTChan :: TChan a -> STM (Maybe a)

+1 if we also add: peekChan :: Chan a -> IO a tryPeekChan :: Chan a -> IO (Maybe a)

Here's the last time 'tryReadChan' came up, for reference: http://thread.gmane.org/gmane.comp.lang.haskell.libraries/14596

I feel like these sorts of operations are much easier to get right in STM.

Agreed. I'm all for adding Chan versions to base if we can get the implementation/semantics right, but since I don't have experience with Chans I'm not sure if I'm the best person for that task. -- Live well, ~wren