I have a function that returns the memory use of a device. It uses mach_task_self_ which gives a warning that it is not concurrency-safe.

task_info(mach_task_self_, task_flavor_t(TASK_VM_INFO), intPtr, &count)

According to this answer you can import and mark as @preconcurrency however when I try this it doesn’t work.

@preconcurrency import Darwin.Mach.mach_init

It says '@preconcurrency' attribute on module 'Darwin' has no effect

When I jump to the definition of mach_task_self_ it shows me it is in Darwin > Mach > mach_init