[Haskell-cafe] Re: TChan implementation: Why TVarList

[Joel Reymont]

Well, I meant more like TVar [a] but I see that you are pulling from  
the front and appending to the rear.

I need to implement a mailbox where messages can be pulled out based  
on a predicate or in order of arrival. I'm thinking of using a Map  
keyed on ClockTime.

Do you have any suggestions?

	Thanks, Joel

On Dec 6, 2005, at 11:31 AM, Simon Peyton-Jones wrote:

> The mutable cell is in the tail.  A [TVar a] would be quite different.
> You can read about a very similar impl (based on MVars) in the  
> original
> "Concurrent Haskell" paper (on my papers page)

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