Enum LimitReason 

pub enum LimitReason {
    None,
    Measuring,
    Measured {
        chosen: usize,
        chosen_rate: f64,
        tried: usize,
        tried_rate: f64,
    },
    Refused {
        serving: usize,
    },
    Starved {
        serving: usize,
    },
}

Why the active connection count sits below the budget.

The scheduler does not act on this. It is carried here because every front end observes a transfer through a callback that receives &Scheduler and nothing else, and a dormant connection row that cannot say WHY it is dormant reads as a dropped connection. That is how a transfer behaving correctly — the in-band search measured two connections as slower than one and settled at one, matching curl on the same object — came to be filed as a bug: the rows said “waiting (connection limit)” and nothing said a measurement had been taken or what it concluded.

Variants

None

Nothing has lowered the count; every connection may be admitted.

Measuring

The in-band search is still measuring whether more connections pay.

Measured

The search finished: tried connections delivered tried_rate bytes/s against chosen at chosen_rate, and the smaller count won. Rates are zero when that level was never measured directly.

Fields

chosen: usize

chosen_rate: f64

tried: usize

tried_rate: f64

Refused

The origin refused requests (429/503) beyond serving at once.

Fields

serving: usize

Starved

The origin accepted connections beyond serving and then served them nothing for a whole stall timeout while the others streamed.

Fields

serving: usize

Trait Implementations

impl Clone for LimitReason

fn clone(&self) -> LimitReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LimitReason

impl Debug for LimitReason

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

Formats the value using the given formatter.

impl Default for LimitReason

fn default() -> LimitReason

Returns the “default value” for a type.

impl PartialEq for LimitReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LimitReason