Skip to main content

ResourceLimits

Struct ResourceLimits 

Source
pub struct ResourceLimits {
    pub input_bytes: u64,
    pub bundle_entries: u64,
    pub graph_elements: u64,
    pub metadata_bytes: u64,
    pub depth: u64,
    pub steps: u64,
    pub output_bytes: u64,
}
Expand description

What a single operation is allowed to consume.

Every field is a maximum. 0 means unbounded, which is a deliberate choice a Rust caller can make and which no FFI or command-line entry point selects by default: unbounded behaviour should be asked for, never inherited.

Fields§

§input_bytes: u64

Bytes of input accepted in one operation.

§bundle_entries: u64

Documents in one bundle.

§graph_elements: u64

Vertices, edges and nodes in a decoded schema or instance.

§metadata_bytes: u64

Bytes of metadata attached to a schema or instance.

§depth: u64

Levels of nesting descended.

§steps: u64

Steps of evaluation or search performed.

§output_bytes: u64

Bytes of output produced.

Implementations§

Source§

impl ResourceLimits

Source

pub const fn defaults() -> Self

The defaults every untrusted public surface uses.

Chosen to admit any document a person would plausibly author while refusing one built to exhaust a machine. The depth bound matches the walk and extraction depths that already existed, so this changes no behaviour those already governed.

Source

pub const fn unbounded() -> Self

No bound on anything.

For a Rust caller processing input it produced itself. Reaching for this at a boundary that accepts input from elsewhere is what this type exists to prevent.

Source

pub const fn get(&self, resource: Resource) -> u64

The bound configured for resource.

Source

pub fn budget(self) -> Budget

Start a budget against these limits.

Trait Implementations§

Source§

impl Clone for ResourceLimits

Source§

fn clone(&self) -> ResourceLimits

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Copy for ResourceLimits

Source§

impl Debug for ResourceLimits

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for ResourceLimits

Source§

fn default() -> Self

Returns the “default value” for a type. Read more
Source§

impl Eq for ResourceLimits

Source§

impl PartialEq for ResourceLimits

Source§

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for ResourceLimits

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.