[Nickle] files not auto-closed on exit?

[Keith Packard]

Around 14 o'clock on Apr 22, Bart Massey wrote:

> I suppose that the data is stuck in the Nickle heap on exit, having not
> been flushed into stdio from whence it would be flushed to the OS before
> normal program termination.

Nickle can't use stdio as it doesn't have reliable indications of partial 
reads and writes, and breaks horribly on most systems when file 
descriptors are in non-blocking mode.

> The question is whether Nickle needs to keep a list of all the open files
> and install an exit handler...

It looks like Nickle needs some help with file management; it doesn't even 
flush files that are dropped when garbage collecting.

Suggestions for dealing with stalled output and other vageries are welcome.

-keith