Struct gio::InputMessage

pub struct InputMessage<'m> { /* private fields */ }

Structure used for scatter/gather data input when receiving multiple messages or packets in one go. You generally pass in an array of empty GInputVectors and the operation will use all the buffers as if they were one buffer, and will set bytes_received to the total number of bytes received across all GInputVectors.

This structure closely mirrors struct mmsghdr and struct msghdr from the POSIX sockets API (see man 2 recvmmsg).

If address is non-None then it is set to the source address the message was received from, and the caller must free it afterwards.

If control_messages is non-None then it is set to an array of control messages received with the message (if any), and the caller must free it afterwards. num_control_messages is set to the number of elements in this array, which may be zero.

Flags relevant to this message will be returned in flags. For example, MSG_EOR or MSG_TRUNC.

Implementations

impl<'m> InputMessage<'m>

pub fn new( address: Option<&'m mut Option<SocketAddress>>, vectors: &'m mut [InputVector<'m>], control_messages: Option<&'m mut SocketControlMessages> ) -> Self

pub fn vectors(&mut self) -> &'m mut [InputVector<'m>]

pub const fn flags(&self) -> i32

pub const fn bytes_received(&self) -> usize

Trait Implementations

impl<'m> Debug for InputMessage<'m>

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

Formats the value using the given formatter.