Struct MemBio 

pub struct MemBio { /* private fields */ }

A writable, growable in-memory BIO.

Data written to this BIO accumulates in an internal buffer managed by OpenSSL. After writing, data() returns a borrowed slice without copying.

Implementations

impl MemBio

pub fn new() -> Result<Self, ErrorStack>

Create a new empty writable BIO_s_mem() BIO.

Errors

Returns Err if OpenSSL cannot allocate the BIO.

pub fn write(&mut self, data: &[u8]) -> Result<(), ErrorStack>

Write bytes into the BIO’s internal buffer.

Errors

Returns Err if the write fails.

pub fn data(&self) -> &[u8]

Borrow the current contents of the BIO’s buffer as a &[u8].

The slice is valid until the next write operation or until self is dropped. This is a zero-copy view — no allocation occurs.

pub fn into_vec(self) -> Vec<u8>

Move the buffer contents into a freshly allocated Vec<u8>.

Prefer data() when a borrow suffices.

Trait Implementations

impl Drop for MemBio

fn drop(&mut self)

Executes the destructor for this type.

impl Send for MemBio