Struct Buffers

pub struct Buffers {
    pub src: Vec<u8>,
    pub dest: Vec<u8>,
}

A utility to do buffer-swapping with.

Use src to read from and dest to write to, and after actually changing data, call Buffers::swap(). To be able to repeat the process, this time using what was dest as src, freeing up dest for writing once more.

Note that after each Buffers::swap(), src is the most recent version of the data, just like before each swap.

Fields

src: Vec<u8>

The source data, as basis for processing.

dest: Vec<u8>

The data produced after processing src.

Implementations

impl Buffers

Lifecycle

pub fn use_foreign_src<'a, 'src>( &'a mut self, src: &'src [u8], ) -> WithForeignSource<'src, 'a>

Use this if there is an input buffer src which isn’t owned by you, but which should be used as source when asking for src_and_dest().

impl Buffers

pub fn clear(&mut self)

Clear all buffers, which should be called once processing is done.

pub fn swap(&mut self)

Must be called after every change (i.e. when it’s known that dest was written.

Trait Implementations

impl Clone for Buffers

fn clone(&self) -> Buffers

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Buffers

fn default() -> Buffers

Returns the “default value” for a type.