Struct SessionLayer 

pub struct SessionLayer { /* private fields */ }

The session table + session_nb allocator.

Implementations

impl SessionLayer

pub fn new() -> Self

New, empty session layer.

pub fn resource_of(&self, session_nb: u16) -> Option<ResourceId>

Resource bound to session_nb, if open.

pub fn sessions(&self) -> Vec<(u16, ResourceId)>

All open (session_nb, resource) pairs, ascending by session_nb.

pub fn len(&self) -> usize

Number of open sessions.

pub fn is_empty(&self) -> bool

Whether there are no open sessions.

pub fn create_session(&mut self, resource: ResourceId) -> Vec<u8>

Open a session to a module-provided resource (host-initiated): returns the create_session SPDU to send. The session is recorded once the module’s create_session_response(ok) arrives.

pub fn send_apdu(&self, session_nb: u16, apdu: &[u8]) -> Vec<u8>

Wrap an APDU for sending on session_nb (session_number + body).

pub fn close(&mut self, session_nb: u16) -> Vec<u8>

Begin closing session_nb: returns the close_session_request SPDU.

pub fn on_spdu( &mut self, spdu: &[u8], provides: impl Fn(ResourceId) -> bool, ) -> SessionOut

Handle one inbound SPDU. provides answers “does the host provide this resource?” for an incoming open_session_request.

Trait Implementations

impl Debug for SessionLayer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SessionLayer

fn default() -> SessionLayer

Returns the “default value” for a type.