Struct Sysctl 

pub struct Sysctl { /* private fields */ }

A key=value sysctl applied to the guest before the scheduler starts, injected into the guest kernel cmdline as sysctl.<key>=<value>.

Use the dot-separated form for key (e.g. "kernel.foo", not "kernel/foo"). Duplicate keys in a scheduler’s sysctls slice are applied in order; the last write wins.

Construct with Sysctl::new, which const-asserts the key format at compile time. Direct struct-literal construction is rejected (fields are crate-private) to ensure every constructed Sysctl passed through the format gate.

Implementations

impl Sysctl

pub const fn new(key: &'static str, value: &'static str) -> Self

Const constructor for use in static/const context.

Panics

Panics at compile time (or const-eval time) when:

• key is empty
• key contains / (common typo from sysctl conf-file paths — sysctl-write uses the dotted form, not the slash form)
• key contains whitespace, =, or any control byte (would corrupt the sysctl.<key>=<value> cmdline form)
• key does not contain at least one . (sysctls are namespaced like kernel.foo / net.core.bar; a bare single-segment name is almost certainly a typo)
• key starts or ends with .
• key contains an empty segment (.. — kernel sysctl parser rejects)
• value is empty
• value contains a newline / carriage return / = (would corrupt the sysctl.<key>=<value> cmdline form)

pub const fn key(&self) -> &'static str

The validated dotted sysctl key (e.g. "kernel.sched_cfs_bandwidth_slice_us").

pub const fn value(&self) -> &'static str

The validated sysctl value, written as a string.

Trait Implementations

impl Clone for Sysctl

fn clone(&self) -> Sysctl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Sysctl

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

Formats the value using the given formatter.

impl PartialEq for Sysctl

fn eq(&self, other: &Sysctl) -> 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 Copy for Sysctl

impl Eq for Sysctl

impl StructuralPartialEq for Sysctl