Function jack_sys::jack_client_create_thread

pub unsafe extern "C" fn jack_client_create_thread(
    client: *mut jack_client_t, 
    thread: *mut jack_native_thread_t, 
    priority: c_int, 
    realtime: c_int, 
    start_routine: Option<unsafe extern "C" fn(_: *mut c_void) -> *mut c_void>, 
    arg: *mut c_void
) -> c_int