HostFile

Struct HostFile 

Source
pub struct HostFile { /* private fields */ }
Expand description

Collection of host file entries keyed by reflector name.

Lookups are case-insensitive — the query is upper-cased before the HashMap lookup. Parsed insertion likewise upper-cases the name. Duplicate names use last-wins semantics.

Implementations§

Source§

impl HostFile

Source

pub fn new() -> Self

Create an empty host file.

Source

pub fn parse(&mut self, content: &str, default_port: u16)

Parse host entries from text content.

Supports two formats:

  • 3 columns: name address port
  • 2 columns: name address (port from default_port)

Lines starting with # are comments. Empty lines skipped. Unparseable ports fall back to default_port rather than dropping the entry.

Source

pub fn lookup(&self, name: &str) -> Option<&HostEntry>

Look up an entry by name (case-insensitive).

Source

pub fn insert(&mut self, entry: HostEntry)

Insert a host entry directly. Uses entry.name verbatim as the key, so callers should pass an upper-case name to remain reachable via Self::lookup.

Source

pub fn len(&self) -> usize

Number of entries in the host file.

Source

pub fn is_empty(&self) -> bool

True if the host file has zero entries.

Source

pub fn iter(&self) -> impl Iterator<Item = &HostEntry> + '_

Iterate all entries.

Trait Implementations§

Source§

impl Clone for HostFile

Source§

fn clone(&self) -> HostFile

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for HostFile

Source§

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

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

impl Default for HostFile

Source§

fn default() -> HostFile

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

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.

§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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 = Infallible

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

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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.
§

impl<T> WithSubscriber for T

§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more