Not initializing pipewire library may lead to UB.

Not initializing the library can very easily lead to undefined behaviour using only safe code.

For example, this results in a segmentation fault:

fn main() {
    // Forgetting to call this leads to undefined behaviour
    // pipewire::init();

    let _mainloop = pipewire::MainLoop::new().expect("Failed to create main loop");
}

To fix this, the pipewire::init() function should change a static variable to reflect that the library has been initialized. OnceCell could take care of any unsafeness for us.

We could then add a assert_lib_initialized() function that checks that variable and panics if the library has not been initialized.

This method would then need to be called from any 'entry-point' function in the library, meaning it can be called without having to call another function of the library first.

A (perhaps non-exhaustive) list of these functions: (please write a comment if I missed any)

• MainLoop::new()
• Properties::from_dict()
• the properties!{} macro