Struct ControlLimits 

pub struct ControlLimits {
    pub budget: Option<usize>,
    pub line_limit: Option<usize>,
}

The two bounds on the control state one index retains, each liftable on its own.

They bound different things. The budget bounds the memory the whole table retains; the line limit bounds what one pattern costs to match against every entry. So raising the budget admits more files without admitting longer lines, and lifting the line limit admits long lines without retaining more. A source either bound cannot admit is refused, and its ControlRefusalReason names the one that fired.

Both are part of the scan scope: they decide which rules apply, so a snapshot taken under other limits never serves a request for these.

Fields

budget: Option<usize>

Bytes of retained charge before further sources are refused, or None for no bound.

Each directory’s key and each distinct source’s bytes and matcher are charged, so identical files count once. It also bounds the read: a control file is read to one byte past the budget, so None reads every control file whole, however large.

line_limit: Option<usize>

Longest line in bytes a source may hold before it is refused whole, or None for no bound.

Implementations

impl ControlLimits

pub const fn limit_for(self, reason: ControlRefusalReason) -> Option<usize>

The limit a refusal for reason crossed, or None when that limit is unbounded.

Trait Implementations

impl Clone for ControlLimits

fn clone(&self) -> ControlLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ControlLimits

impl Debug for ControlLimits

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

Formats the value using the given formatter.

impl Default for ControlLimits

fn default() -> ControlLimits

DEFAULT_CONTROL_BUDGET and DEFAULT_CONTROL_LINE_LIMIT.

impl Display for ControlLimits

budget 4.0 MiB, line limit 16 KiB, with all for an unbounded limit, the word every surface accepts back.

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

Formats the value using the given formatter.

impl Eq for ControlLimits

impl Hash for ControlLimits

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

where __H: Hasher,

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 PartialEq for ControlLimits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ControlLimits