I'll do so at lunch break/from home tonight. Thanks, Michael
On Thu, 9 Dec 2004 16:19:20 +0000, Jules Bean <[EMAIL PROTECTED]> wrote: > > On 9 Dec 2004, at 15:30, Michael Walter wrote: > > I continued toying with my toy web server, and I'm "sometimes" getting > > "Invalid argument" errors in hGetLine for a handle I retrieved from > > Network.listenOn. > > > > My first guess would be that hGetLine would return invalid argument if > it was called on a handle which represents a file which is now closed. > However, testing in GHCI suggests that returns "illegal operation > (handle is closed)". Could be different for network sockets, I suppose. > > > > > "Sometimes", because it works fine in the browser, except when I > > reload very frequently -- maybe it's related to some concurrency > > issues (I'm using forkIO to spawn off the handler process from the > > main server loop). When I wanted to benchmark the server using "ab" > > (Apache Benchmark), it didn't even "survive" one request but Fail'ed > > using that error message - "<handle: n>: hGetLine: Invalid argument". > > > > I tried adjusting the buffering mode. > > > > Do you have any ideas? > > > > Sounds like a double-close error or something like that. Hard to say > without seeing the code. Can you make a minimal example? > > Jules > > _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
