11 Nov
2014
11 Nov
'14
4:45 p.m.
On Mon, Nov 10, 2014 at 11:11 PM, Michael Jones <mike@proclivis.com> wrote:
ec <- return $ encode command traceEventIO $ "sendCommand: encoded" l <- ec `seq` return $ BSL.length ec
Your encode function probably loops on some inputs. When you call "return $ foo", foo is not forced; that doesn't happen in your example until BSL.length forces its input. If I'm right, changing the first line to "return $! encode command" will move the hang to before the call to traceEventIO. -- Gregory Collins <greg@gregorycollins.net>