[squeak-dev] How to find unclosed file handles in Squeak?
Levente Uzonyi
leves at caesar.elte.hu
Thu Oct 1 19:58:58 UTC 2020
Hi Christoph,
On Thu, 1 Oct 2020, Thiede, Christoph wrote:
>
> Simple question, probably we already have a helper method for it, but I did not found any yet:
>
> Often, way too often, I encounter some old code (or some stupid code written by myself) that uses #readStream to read a file and forgets to close it again.
>
> Apart from the fact that #readStream is a quite dangerous selector, I wish I could find these unclosed file streams and close them manually without restarting my entire image.
>
> Is there any quick way to do this? "Smalltalk snapshot: false andQuit: false" does not seem to do the trick, and I would prefer a less brutal approach.
>
> Something like "Utilities exploreUnclosedFileStreams" would be perfect ...
Try this: StandardFileStream registry.
Note that you can't just close all files there, but the files you are
looking for are there.
Levente
>
>
> Best,
>
> Christoph
>
>
>
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