Struct nix::mqueue::MqAttr

#[repr(C)]
pub struct MqAttr { /* private fields */ }

A message-queue attribute, optionally used with mq_setattr and mq_getattr and optionally mq_open,

Implementations

impl MqAttr

pub fn new( mq_flags: mq_attr_member_t, mq_maxmsg: mq_attr_member_t, mq_msgsize: mq_attr_member_t, mq_curmsgs: mq_attr_member_t, ) -> MqAttr

Create a new message queue attribute

Arguments

• mq_flags: Either 0 or O_NONBLOCK.
• mq_maxmsg: Maximum number of messages on the queue.
• mq_msgsize: Maximum message size in bytes.
• mq_curmsgs: Number of messages currently in the queue.

pub const fn flags(&self) -> mq_attr_member_t

The current flags, either 0 or O_NONBLOCK.

pub const fn maxmsg(&self) -> mq_attr_member_t

The max number of messages that can be held by the queue

pub const fn msgsize(&self) -> mq_attr_member_t

The maximum size of each message (in bytes)

pub const fn curmsgs(&self) -> mq_attr_member_t

The number of messages currently held in the queue

Trait Implementations

impl Clone for MqAttr

fn clone(&self) -> MqAttr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MqAttr

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

Formats the value using the given formatter.

impl Hash for MqAttr

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 MqAttr

fn eq(&self, other: &MqAttr) -> 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 MqAttr

impl Eq for MqAttr

impl StructuralPartialEq for MqAttr