Struct GaugeCount 

#[repr(transparent)]
pub struct GaugeCount(pub u64);

Gauge-family unitless count (u64). Distinct from MonotonicCount: a MonotonicCount only ever goes UP over a thread’s lifetime (integrated from birth), while a GaugeCount is sampled at capture time and can go up AND down at runtime as the underlying state changes. Distinct from GaugeNs: same Maxable-only contract, but renders as a unitless count rather than a nanosecond ladder.

nr_threads (the process-wide thread count from signal_struct->nr_threads) is the canonical example — threads spawn and exit, so the value is not monotonic. Summing thread counts across a group is meaningless (a bucket of N threads sharing a tgid would over-count their parent process N-fold); the registry reduces by Max so the rendered cell shows “the largest process represented in this bucket.”

Routing this kind of field through GaugeNs would render it on the ns auto-scale ladder — a unit lie. The dedicated type makes the intent explicit at the field declaration and lets the format dispatch pick the unitless ladder instead.

Implements Maxable. Does NOT implement Summable.

Tuple Fields

0: u64

Trait Implementations

impl Clone for GaugeCount

fn clone(&self) -> GaugeCount

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GaugeCount

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

Formats the value using the given formatter.

impl Default for GaugeCount

fn default() -> GaugeCount

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for GaugeCount

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for GaugeCount

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

Formats the value using the given formatter.

impl From<GaugeCount> for u64

fn from(v: GaugeCount) -> Self

Converts to this type from the input type.

impl From<u64> for GaugeCount

fn from(v: u64) -> Self

Converts to this type from the input type.

impl Hash for GaugeCount

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 Maxable for GaugeCount

fn max_across(items: impl IntoIterator<Item = Self>) -> Option<Self>

impl Ord for GaugeCount

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

fn eq(&self, other: &GaugeCount) -> 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 GaugeCount

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

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 GaugeCount

impl Eq for GaugeCount

impl StructuralPartialEq for GaugeCount