Enum rustix::net::send_recv::msg::SendAncillaryMessage

#[non_exhaustive]
pub enum SendAncillaryMessage<'slice, 'fd> {
    ScmRights(&'slice [BorrowedFd<'fd>]),
    ScmCredentials(UCred),
}

Ancillary message for sendmsg, sendmsg_v4, sendmsg_v6, sendmsg_unix, and sendmsg_any.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ScmRights(&'slice [BorrowedFd<'fd>])

Send file descriptors.

ScmCredentials(UCred)

Send process credentials.

Implementations

impl SendAncillaryMessage<'_, '_>

pub const fn size(&self) -> usize

Get the maximum size of an ancillary message.

This can be helpful in determining the size of the buffer you allocate.

Trait Implementations

impl<'slice, 'fd> Extend<SendAncillaryMessage<'slice, 'fd>> for SendAncillaryBuffer<'_, 'slice, 'fd>

fn extend<T: IntoIterator<Item = SendAncillaryMessage<'slice, 'fd>>>( &mut self, iter: T, )

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.