Re: [Haskell-cafe] Preventing leaked open file descriptors when catching exceptions

On Tue, Feb 21, 2012 at 8:16 AM, Ryan Newton wrote:

FYI, lsof confirms that there are indeed many many open connections to the same FIFO:

Like all of the lowest-level I/O functions, openFD just gives you back an integer, and the Fd type has no notion that there's an underlying system resource associated with it. It's your responsibility to manage it (i.e. clean up manually when catching an exception).