Struct Lifetime 

pub struct Lifetime { /* private fields */ }

Determines the lifetime of a pre-key by defining a time range.

Implementations should reject received messages with expired pre-keys and disallow use.

Implementations

impl Lifetime

pub fn new(t: u64) -> Self

Create a new lifetime in seconds from now on.

Note that the lifetime is extended 1h into the past to adapt to skewed clocks, i.e. not_before is set to now - 1h.

pub fn verify(&self) -> Result<(), LifetimeError>

Returns true if this lifetime is valid.

pub fn verify_with_window(&self, window: Duration) -> Result<(), LifetimeError>

Returns true if this lifetime with an additional window is valid.

This method can be used to calculate if a lifetime is about to expire, given a defined time “window”.

              [-------]
              |       |
Lifetime: [---|----]  |
              |       |
             now  + window

        -- t -->

impl Lifetime

pub fn from_range(not_before: u64, not_after: u64) -> Self

Trait Implementations

impl Clone for Lifetime

fn clone(&self) -> Lifetime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Lifetime

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

Formats the value using the given formatter.

impl Default for Lifetime

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Lifetime

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Ord for Lifetime

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Lifetime

fn eq(&self, other: &Lifetime) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Lifetime

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Lifetime

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Lifetime

impl Eq for Lifetime

impl StructuralPartialEq for Lifetime