Function log::set_max_level_racy

pub unsafe fn set_max_level_racy(level: LevelFilter)

A thread-unsafe version of set_max_level.

This function is available on all platforms, even those that do not have support for atomics that is needed by set_max_level.

In almost all cases, set_max_level should be preferred.

Safety

This function is only safe to call when it cannot race with any other calls to set_max_level or set_max_level_racy.

This can be upheld by (for example) making sure that there are no other threads, and (on embedded) that interrupts are disabled.

It is safe to use all other logging functions while this function runs (including all logging macros).