Enum Mode

pub enum Mode {
    Public,
    Group,
    Private,
    Custom(i32),
}

A helper enum for describing a message queue access mode

Note that the creator of a message queue bypasses permission mode and what’s described here applies to the owner of the message queue (owner != creator).

Variants

Public

Allows complete access to anyone

Group

Allows complete access to only the owner’s group and the owner (and the creator)

Private

Allows complete access to only the owner (and the creator)

Custom(i32)

Custom modes. Please, do try to make sure that you only pass numbers >= 0777

Trait Implementations

impl Clone for Mode

fn clone(&self) -> Mode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mode

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

Formats the value using the given formatter.

impl From<Mode> for i32

fn from(mode: Mode) -> i32

Allows conversion of modes to and from i32. This conversion can never fail, but there is a chance that numbers ‘longer’ than 9 bits might interfere with flags.

Therefore, only use custom mode when absolutely necessary.

impl Copy for Mode