Trait rdkafka::util::IntoOpaque

pub trait IntoOpaque: Send + Sync {
    fn as_ptr(&self) -> *mut c_void;
    unsafe fn from_ptr(_: *mut c_void) -> Self;
}

Converts Rust data to and from raw pointers.

This conversion is used to pass opaque objects to the C library and vice versa.

Required methods

fn as_ptr(&self) -> *mut c_void

Converts the object into a raw pointer.

unsafe fn from_ptr(_: *mut c_void) -> Self

Converts the raw pointer back to the original Rust object.

Safety

The pointer must be a valid pointer to the original Rust object.

Implementations on Foreign Types

impl IntoOpaque for ()

fn as_ptr(&self) -> *mut c_void

unsafe fn from_ptr(_: *mut c_void) -> Self

impl IntoOpaque for usize

fn as_ptr(&self) -> *mut c_void

unsafe fn from_ptr(ptr: *mut c_void) -> Self

impl<T: Send + Sync> IntoOpaque for Box<T>

fn as_ptr(&self) -> *mut c_void

unsafe fn from_ptr(ptr: *mut c_void) -> Self

impl<T: Send + Sync> IntoOpaque for Arc<T>

fn as_ptr(&self) -> *mut c_void

unsafe fn from_ptr(ptr: *mut c_void) -> Self

Implementors