Struct esp_idf_svc::tls::EspAsyncTls

pub struct EspAsyncTls<S>(/* private fields */)
where
    S: PollableSocket;

Implementations

impl<S> EspAsyncTls<S>

where S: PollableSocket,

pub fn adopt(socket: S) -> Result<Self, EspError>

Create a new AsyncEspTls instance adopting the supplied socket. The socket should be in a connected state.

Errors

• ESP_ERR_NO_MEM if not enough memory to create the TLS connection

pub async fn negotiate( &mut self, hostname: &str, cfg: &Config<'_> ) -> Result<(), EspError>

Establish a TLS/SSL connection using the adopted socket.

Errors

• ESP_ERR_INVALID_SIZE if cfg.alpn_protos exceeds 9 elements or avg 10 bytes/ALPN
• ESP_FAIL if connection could not be established

pub async fn read(&self, buf: &mut [u8]) -> Result<usize, EspError>

Read in the supplied buffer. Returns the number of bytes read.

pub async fn write(&self, buf: &[u8]) -> Result<usize, EspError>

Write the supplied buffer. Returns the number of bytes written.

pub async fn write_all(&self, buf: &[u8]) -> Result<(), EspError>

Trait Implementations

impl<S> ErrorType for EspAsyncTls<S>

where S: PollableSocket,

type Error = EspIOError

Error type of all the IO operations on this type.

impl<S> Read for EspAsyncTls<S>

where S: PollableSocket,

async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>

Read some bytes from this source into the specified buffer, returning how many bytes were read.

async fn read_exact( &mut self, buf: &mut [u8] ) -> Result<(), ReadExactError<Self::Error>>

Read the exact number of bytes required to fill buf.

impl<S> Write for EspAsyncTls<S>

where S: PollableSocket,

async fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error>

Write a buffer into this writer, returning how many bytes were written.

async fn flush(&mut self) -> Result<(), Self::Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

async fn write_all(&mut self, buf: &[u8]) -> Result<(), Self::Error>

Write an entire buffer into this writer.