On 19 April 2004 08:32, John Meacham wrote:

I have finally tracked down a test case which results in the file descriptor leak which has plauged one of my programs since its birth.

this code: sequence (replicate 100 $ handle (\_ -> return "") ( readFile "."))

will leak 100 file descriptors, apparently, after a Fail: .: openFile: inappropriate type (is a directory) exception from readFile, the file descriptor will not be closed, and instead be left open til the end o' time.

it took me a long time to find because I thought the bug was in the listing of my directories, not the readFile's of its contents (including "." and "..").

Yes, that's a bug. Now fixed. Cheers, Simon