[tialaramex]

Yes, for example if you make a Rust std::sync:RWLock on Windows, it will literally be SRWLock because Microsoft advertises this API as having exactly the behaviour Rust wants so why would you build something worse instead ?

Rust's Mutex on Windows is also an SRWLock but it can't hit this bug because it deliberately only uses the exclusive locking.

[iknowstuff]

So it doesn't use a shared lock when .read() is used?

[zozbot234]

Rust has both Mutex and RWLock. The Mutex only uses exclusive locks, there's no distinction between "read" and "write".

[iknowstuff]

Oh sorry my morning brain thought the comment was all about RWLock