Current version of openmidi dependency has Undefined Behaviour on MacOS

[marcushaddon]

When using midir on MacOS with coremidi, i inevitably get panics related to misaligned pointer dereference: address must be a multiple of 0x4 but is 0x7000115af679, which originate inside of coremidi. Looking at their issues, it seems that this was a known issue that has been fixed (https://github.com/chris-zen/coremidi/issues/24). The fix is available in 0.7.0 but midir still depends on 0.6.0, and will not accept a [patch]'ed version.

Would it be possible to upgrade to coremidi = 0.7.0?

[Boddlnagg]

Can you test if #139 fixes it? I don't have a macOS machine right now to test it, but according to CI looks good. I'm a little confused because the linked issue doesn't mention anything about misaligned addresses (only MaybeUninit and null pointers), so I'm curious to see if it actually helps with your issue.

[Boddlnagg]

I just released midir 0.10.0 which now depends on coremidi 0.8.0

[Boddlnagg]

I actually don't think that this was fixed by coremidi 0.7, but probably https://github.com/chris-zen/coremidi/issues/49 instead

[Boddlnagg]

This should be fixed with the latest version of coremidi-sys. I will publish a version with updated dependency soon.

[Boddlnagg]

Actually a new version is not needed (and coremidi-sys is not even a direct dependency of midir). cargo update should do the trick.