Struct `MsgHdrMut`

struct MsgHdrMut<'addr, 'bufs, 'control> { ... }

Configuration of a recvmsg(2) system call.

This wraps msghdr on Unix and WSAMSG on Windows. Also see MsgHdr for the variant used by sendmsg(2).

Implementations

fn new() -> MsgHdrMut<'addr, 'bufs, 'control>

Create a new MsgHdrMut with all empty/zero fields.

fn with_addr(self: Self, addr: &'addr mut SockAddr) -> Self

Set the mutable address (name) of the message.

Corresponds to setting msg_name and msg_namelen on Unix and name and namelen on Windows.

fn with_buffers(self: Self, bufs: &'bufs mut [MaybeUninitSlice<'_>]) -> Self

Set the mutable buffer(s) of the message.

Corresponds to setting msg_iov and msg_iovlen on Unix and lpBuffers and dwBufferCount on Windows.

fn with_control(self: Self, buf: &'control mut [MaybeUninit<u8>]) -> Self

Set the mutable control buffer of the message.

Corresponds to setting msg_control and msg_controllen on Unix and Control on Windows.

fn flags(self: &Self) -> RecvFlags

Returns the flags of the message.

fn control_len(self: &Self) -> usize

Gets the length of the control buffer.

Can be used to determine how much, if any, of the control buffer was filled by recvmsg.

Corresponds to msg_controllen on Unix and Control.len on Windows.

fn into(self: Self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.