Enum EventSys 

pub enum EventSys {
    Default,
    Win32,
    Epoll,
    Kqueue,
    Poll,
    Select,
}

Event system to use for the c-ares built-in event thread.

Passed to Options::set_event_thread() to select which I/O backend the internal event loop should use. In most cases Default is the right choice.

Available since c-ares 1.26.0.

Variants

Default

Let c-ares pick the best available backend.

Win32

Win32 IOCP / AFD_POLL.

Epoll

Linux epoll.

Kqueue

BSD / macOS kqueue.

Poll

POSIX poll().

Select

POSIX select() — last-resort fallback.

Trait Implementations

impl Clone for EventSys

fn clone(&self) -> EventSys

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EventSys

impl Debug for EventSys

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

Formats the value using the given formatter.

impl Eq for EventSys

impl From<EventSys> for ares_evsys_t

Available on cares1_26 only.

fn from(val: EventSys) -> Self

Converts to this type from the input type.

impl Hash for EventSys

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

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 EventSys

fn eq(&self, other: &EventSys) -> 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 StructuralPartialEq for EventSys