function-pointer-struct.rs

#[no_mangle]
pub unsafe extern "C" fn libsampleplugin_load(functions: *const DB_functions_t ) -> *mut c_void {

    // "functions" argument is a pointer to a struct with function pointers for each API function.
    // Callable like so:

    let confdir: &CStr = CStr::from_ptr( (*functions).get_config_dir.unwrap()() );
    println!("From rust: Deadbeef config dir is {}", confdir.to_str().unwrap());
    
    // How to store a reference or pointer to this structure in a global variable so I can reference it later?

}