On Mon, Mar 31, 2008 at 12:00 PM, Manlio Perillo <[EMAIL PROTECTED]> wrote: > Since Nginx is asynchronous, how can be solved the producer-consumer > problem (that is, the Haskell program produces more data that Nginx can > send to the client without blocking)?
I assume that the Haskell process is connected to nginx over a pipe or socket. In which case, nginx can use flow control to block the sending side of the pipe and the Haskell code will backup on that. If many connections need to be multiplexed over the same flow-controlled entity (i.e. a pipe), without head-of-line blocking then you can just suspend the current thread using an MVar or the STM objects. Alternatively, with Network.MiniHTTP the problem is turned inside out. Request handlers give return a Source object, which can be asked to generate more data on request. This would be similar to generators in Python. AGL -- Adam Langley [EMAIL PROTECTED] http://www.imperialviolet.org _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
