DragonOS/kernel/src/libs/ffi_convert.rs

/// @brief 由bindgen生成的结构体转换成rust原生定义的结构体的特性
pub trait FFIBind2Rust<T> {
    /// 转换为不可变引用
    fn convert_ref(src: *const T) -> Option<&'static Self>;
    /// 转换为可变引用
    fn convert_mut(src: *mut T) -> Option<&'static mut Self>;
}

pub fn __convert_mut<'a, S, D>(src: *mut S) -> Option<&'a mut D> {
    return unsafe { core::mem::transmute::<*mut S, *mut D>(src).as_mut() };
}

pub fn __convert_ref<'a, S, D>(src: *const S) -> Option<&'a D> {
    return unsafe { core::mem::transmute::<*const S, *const D>(src).as_ref() };
}