Struct FrameStamp 

pub struct FrameStamp {
    id: FrameId,
    time: SystemTime,
    document_id: DocumentId,
}

Identifier to track a sequence of frames.

This is effectively a FrameId with a ridealong timestamp corresponding to when advance() was called, which allows for more nuanced cache eviction decisions. As such, we use the FrameId for equality and comparison, since we should never have two FrameStamps with the same id but different timestamps.

Fields

id: FrameId

time: SystemTime

document_id: DocumentId

Implementations

impl FrameStamp

pub const INVALID: FrameStamp

An invalid sentinel FrameStamp.

pub fn frame_id(&self) -> FrameId

Gets the FrameId in this stamp.

pub fn time(&self) -> SystemTime

Gets the time associated with this FrameStamp.

pub fn document_id(&self) -> DocumentId

Gets the DocumentId in this stamp.

pub fn is_valid(&self) -> bool

pub fn first(document_id: DocumentId) -> Self

Returns a FrameStamp corresponding to the first frame.

pub fn advance(&mut self)

Advances to a new frame.

Trait Implementations

impl Clone for FrameStamp

fn clone(&self) -> FrameStamp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameStamp

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

Formats the value using the given formatter.

impl MallocSizeOf for FrameStamp

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for FrameStamp

fn eq(&self, other: &Self) -> 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 FrameStamp

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 FrameStamp

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 FrameStamp

impl Eq for FrameStamp