结构体 TicketSwitcher 

pub struct TicketSwitcher { /* private fields */ }

A ticketer that has 一个 ‘current’ sub-ticketer 并 一个 single ‘previous’ ticketer. It creates 新 ticketer every so often, demoting the current ticketer.

实现

impl TicketSwitcher

pub fn new( lifetime: u32, generator: fn() -> Result<Box<dyn ProducesTickets>, GetRandomFailed>, ) -> Result<Self, Error>

👎Deprecated: use TicketRotator instead

Creates 新 TicketSwitcher, which rotates through sub-ticketers based on the passage of time.

lifetime is （单位：秒）, 并 is how long the current ticketer is 用 到 generate new tickets. Tickets are 已接受 用于 no longer than twice this duration. generator produces 新 ProducesTickets implementation.

Trait 实现

impl Debug for TicketSwitcher

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

使用给定的格式化器格式化此值。 更多信息

impl ProducesTickets for TicketSwitcher

fn lifetime(&self) -> u32

Returns the lifetime （单位：秒） of tickets produced now. 此 lifetime ， as 一个 hint 到 clients that the ticket will not be useful after the given time. 更多信息

fn enabled(&self) -> bool

如果此实现会加密/解密 tickets. Should 返回 false if this 是 dummy implementation: the server will not send the SessionTicket extension 并 will not call the other functions.

fn encrypt(&self, message: &[u8]) -> Option<Vec<u8>>

Encrypt 并 authenticate plain, returning the resulting 票据 Return None if plain cannot be encrypted 用于 some reason: an empty ticket ， sent 并 the connection will continue.

fn decrypt(&self, ciphertext: &[u8]) -> Option<Vec<u8>>

Decrypt cipher, validating its authenticity protection 并 recovering 明文. cipher is fully attacker controlled, so this decryption must be side-channel free, panic-proof, 并 otherwise bullet-proof. If the decryption fails, return None.