Segmentation Fault while using 0.2.1 version

[Pranav2612000]

Segmentation Fault while using 0.2.1 version

[1313]

Oh I will look into it.

If you set the rust flags like this:

$ export RUSTFLAGS=-Zsanitizer=address RUSTDOCFLAGS=-Zsanitizer=address

And run your code with the nightly version, what does the dump say?

[Pranav2612000]

Tried doing this. But was unable to get the Sanitizer to work. I see the following issue

Specifically the Please launch the executable with: .... .
Tried a couple of things but was not able to get rid of it. Do you know how I can get the Address Sanitizer working?

I was able to get the AddressSanitizer to work by explicitly passing in the --target option. Here's the output -

[Pranav2612000]

I also forked the repo and tried running the tests in screencapturekit/src/sc_stream.rs. Those tests look almost the same as the above code, but those tests pass and work as expected.

[1313]

Cool that helps!

It's an issue with how something being dropped with the wrong refcount. This will be fixed with my core-foundation pr. but I can fix it here too.

Thanks

[Pranav2612000]

Great! Do you have an estimate on by when this'll be available?
Is there some workaround I can try in the meantime?

Also, out of curiosity, how did you figure It's an issue with how something being dropped with the wrong refcount.?

[1313]

Fixed and pushed a new version v0.2.2

[1313]

It was the call to CFRelease at the top which is called via the Id/ShareId traits which calls the CFRelease via its drop trait.

Objective C uses refcounting a similar model as RC and ARC.

The segfault happened in the CMSampleBuffer as it hold references to underlying image/pixelbuffers which was created in a bad way messing up the ref count.