Struct TxnId 

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

Process-unique id for one transaction.

Rides on every SceneChange emitted inside it, so a consumer watching the cheap notification channel can group a fan-out that arrived as N separate notifications — and match it to the owning SceneTransactionRecord when one is delivered. Ids count up from 1; TxnId(0) is the “no transaction yet” sentinel the change signal is seeded with and no scene mutation can ever carry.

Implementations

impl TxnId

pub fn as_u64(self) -> u64

Raw value, for a consumer keying its own map on a transaction.

pub fn is_none(self) -> bool

Whether this is the sentinel the change and transaction signals hold before anything has been committed. Never true for a transaction the scene actually opened.

Trait Implementations

impl Clone for TxnId

fn clone(&self) -> TxnId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TxnId

impl Debug for TxnId

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

Formats the value using the given formatter.

impl Default for TxnId

fn default() -> TxnId

Returns the “default value” for a type.

impl Eq for TxnId

impl Hash for TxnId

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 TxnId

fn cmp(&self, other: &TxnId) -> 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 TxnId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for TxnId

fn partial_cmp(&self, other: &TxnId) -> 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 TxnId