Use this function to lock a spin lock by setting it to a non-zero value.
void SDL_AtomicLock(SDL_SpinLock* lock)
a pointer to a lock variable
You can add your code example here
The atomic locks are efficient spinlocks using CPU instructions, but are vulnerable to starvation and can spin forever if a thread holding a lock has been terminated. For this reason you should minimize the code executed inside an atomic lock and never do expensive things like API or system calls while holding them.
The atomic locks are not safe to lock recursively.