My library to send refs between threads

code review
1

I have suggested that stdlib misses the feature to send refs to non-Send objects between threads using mutexes and proposed a change:

unsafe impl<'mutex, T: ?Sized + Sync> Sync for Mutex<'mutex, T> {}
unsafe impl<'mutex, T: ?Sized> Send for Mutex<'mutex, T> { }

I also showed my library with class RefMutex as a workaround.

Are my

  • proposed changes to stdlib
  • my workaround library
    correct?
2

This would let you send any value to another thread by wrapping it in a Mutex<Option<T>>, sending the mutex to the other thread, and taking the value out of the Option by replacing the Option with None.

7 Likes
3

(In other words, as was already pointed out in that IRLO thread, neither your proposed changes to std nor your workaround library are correct.)

4

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