Struct IoMaxReport 

pub struct IoMaxReport {
    pub declared_bytes_per_sec: u64,
    pub status: IoMaxStatus,
    pub reason: Option<String>,
}

The declared I/O ceiling and what became of it, carried into --explain-scope, into session_start.effective_grants and into W-SEC-021.

io.max is non-fatal, so a ceiling that did not apply refuses nothing. This value is what carries that outcome alongside the claim, so the manifest’s declared ceiling and what the kernel accepted cannot disagree in silence.

Fields

declared_bytes_per_sec: u64

The effective capabilities.resources.cgroup_io_bytes_per_sec, after HostResourceLimits::resolve has applied its default. Reported whatever the status, so a reader can see what was asked for as well as what happened to it.

status: IoMaxStatus

What happened to it.

reason: Option<String>

Why, for every status but IoMaxStatus::Enforced. Absent from the JSON when there is nothing to say.

Implementations

impl IoMaxReport

pub fn no_scope_required(declared_bytes_per_sec: u64) -> Self

No cgroup scope is required because this capsule can reach no subprocess.

Public, and takes no reason argument: mur run --explain-scope has to produce the byte-for-byte report a launch produces — trace.rs’s session_start_effective_grants_match_explain_scope_json asserts the two objects are equal — so the wording lives here rather than once per caller.

Trait Implementations

impl Clone for IoMaxReport

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IoMaxReport

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

Formats the value using the given formatter.

impl Default for IoMaxReport

fn default() -> Self

Returns the “default value” for a type.

impl Eq for IoMaxReport

impl PartialEq for IoMaxReport

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for IoMaxReport

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for IoMaxReport