Struct IoOptions

pub struct IoOptions {
    pub dontcache: bool,
}

Options for IO operations.

Fields

dontcache: bool

Bypasses the page cache for I/O operations.

Currently only implemented for the Linux PollSource backend using RWF_DONTCACHE. Other backends (like io_uring, tokio, or Windows) silently ignore this option.

On PollSource, if the kernel doesn’t support RWF_DONTCACHE (e.g. older kernels), the backend will transparently fallback to cached I/O. However, if the filesystem doesn’t support it (returning EOPNOTSUPP), the operation will fail.

Trait Implementations

impl Clone for IoOptions

fn clone(&self) -> IoOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IoOptions

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

Formats the value using the given formatter.

impl Default for IoOptions

fn default() -> IoOptions

Returns the “default value” for a type.

impl Copy for IoOptions