Enum MsgHdrRef 

pub enum MsgHdrRef {
    Ptr(MsgHdrPtr),
    Value(WithAlternateBuffer<MsgHdr>),
}

A reference to a msghdr.

This enum is used to abstract over whether the msghdr is in user memory (and needs to be read) or has been constructed in the kernel. This is used by io_uring to provide a buffer for recvmsg.

Variants

Ptr(MsgHdrPtr)

Value(WithAlternateBuffer<MsgHdr>)

Trait Implementations

impl Clone for MsgHdrRef

fn clone(&self) -> MsgHdrRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MsgHdrRef

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

Formats the value using the given formatter.

impl From<Augmented<MsgHdr, UserBuffer>> for MsgHdrRef

fn from(value: WithAlternateBuffer<MsgHdr>) -> Self

Converts to this type from the input type.

impl From<MappingMultiArchUserRef<MsgHdr, msghdr, msghdr>> for MsgHdrRef

fn from(ptr: MsgHdrPtr) -> Self

Converts to this type from the input type.