[Newbies] Do I need to close a FileStream?
bert at freudenbergs.de
Sat Mar 24 08:25:39 UTC 2007
On Mar 24, 2007, at 8:34 , Tim Johnson wrote:
> Do I need to worry about closing a read-only FileStream when I am
> done reading from it?
Yes. Always. A common pattern is
f := ... open the file stream ....
[ ... do something with f ... ] ensure: [f close]
This ensures f is closed even if there is an error in your processing
> What happens if I don't?
Bad Things ;) I'm not exactly sure.
> How can I tell if I have lots of open files in my system?
> "FileStream allInstances inspect"?
You would need to use #allSubInstances and check if they're open.
- Bert -
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