Struct MediaRequestToken 

pub struct MediaRequestToken(/* private fields */);

Non-zero token placed in the SCCP pass-through-party field to identify one media request generation, rather than the lifetime of a call.

Phones echo this field on conforming ORC/SMT acknowledgements. Changing it per request prevents a delayed ACK for a retired request from matching a later reopen and supplies explicit wire correlation to both ACK families.

Implementations

impl MediaRequestToken

pub const fn new(value: u32) -> Option<Self>

Creates a token, returning None for the reserved value zero.

pub const fn get(self) -> u32

pub const fn checked_next(self) -> Option<Self>

Advance without wrapping or reusing token zero.

Exhaustion is an explicit failure: silently wrapping would make an ancient acknowledgement eligible to match a new request.

Trait Implementations

impl Clone for MediaRequestToken

fn clone(&self) -> MediaRequestToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MediaRequestToken

impl Debug for MediaRequestToken

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

Formats the value using the given formatter.

impl Eq for MediaRequestToken

impl Hash for MediaRequestToken

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for MediaRequestToken

fn cmp(&self, other: &MediaRequestToken) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for MediaRequestToken

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for MediaRequestToken

fn partial_cmp(&self, other: &MediaRequestToken) -> 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 StructuralPartialEq for MediaRequestToken