Struct s2n_codec::encoder::estimator::EncoderLenEstimator

pub struct EncoderLenEstimator { /* private fields */ }

Estimates the encoding_size of an EncoderValue

Implementations

impl EncoderLenEstimator

pub const fn new(capacity: usize) -> Self

Create a new estimator with a given buffer capacity

pub const fn overflowed(&self) -> bool

Returns true when the estimated len is greater than the allocated buffer capacity.

Trait Implementations

impl Encoder for EncoderLenEstimator

fn write_sized<F: FnOnce(&mut [u8])>(&mut self, len: usize, _write: F)

Calls write with a slice of len bytes at the current write position

fn write_slice(&mut self, slice: &[u8])

Copies the slice into the buffer

fn write_repeated(&mut self, count: usize, _value: u8)

Repeatedly write a byte value for a given count

fn write_zerocopy<T: FromBytes + Unaligned, F: FnOnce(&mut T)>( &mut self, _write: F )

Writes a zerocopy value to the buffer

fn capacity(&self) -> usize

Returns the total buffer capacity

fn len(&self) -> usize

Returns the number of bytes written to the buffer

const SPECIALIZES_BYTES: bool = false

Set to true if the particular encoder specializes on the bytes implementation

fn encode<T: EncoderValue>(&mut self, value: &T)

Encode the given EncoderValue into the buffer

fn encode_with_len_prefix<Len: TryFrom<usize> + EncoderValue, T: EncoderValue>( &mut self, value: &T )where Len::Error: Debug,

Encode the given EncoderValue into the buffer with a prefix of Len

fn write_bytes(&mut self, bytes: Bytes)

fn is_empty(&self) -> bool

Returns true if no bytes have been written

fn remaining_capacity(&self) -> usize

Returns the number of available bytes in the buffer