## MsgHdr

# Struct MsgHdr

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    pub struct MsgHdr<'addr, 'bufs, 'control> { /* private fields */ }

Expand description

Configuration of a `sendmsg(2)` system call.

This wraps `msghdr` on Unix and `WSAMSG` on Windows. Also see `MsgHdrMut` for the variant used by `recvmsg(2)`.

## Implementations§

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### impl<'addr, 'bufs, 'control> MsgHdr<'addr, 'bufs, 'control>

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#### pub fn new() -> MsgHdr<'addr, 'bufs, 'control>

Create a new `MsgHdr` with all empty/zero fields.

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

Set the address (name) of the message.

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

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#### pub fn with_buffers(self, bufs: &'bufs [IoSlice<'_>]) -> Self

Set the buffer(s) of the message.

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

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#### pub fn with_control(self, buf: &'control [u8]) -> Self

Set the control buffer of the message.

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

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#### pub fn with_flags(self, flags: c_int) -> Self

Set the flags of the message.

Corresponds to setting `msg_flags` on Unix and `dwFlags` on Windows.

## Trait Implementations§

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### impl<'name, 'bufs, 'control> Debug for MsgHdr<'name, 'bufs, 'control>

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

Formats the value using the given formatter. Read more

## Auto Trait Implementations§

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### impl<'addr, 'bufs, 'control> Freeze for MsgHdr<'addr, 'bufs, 'control>

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### impl<'addr, 'bufs, 'control> RefUnwindSafe for MsgHdr<'addr, 'bufs, 'control>

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### impl<'addr, 'bufs, 'control> !Send for MsgHdr<'addr, 'bufs, 'control>

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### impl<'addr, 'bufs, 'control> !Sync for MsgHdr<'addr, 'bufs, 'control>

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### impl<'addr, 'bufs, 'control> Unpin for MsgHdr<'addr, 'bufs, 'control>

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### impl<'addr, 'bufs, 'control> UnwindSafe for MsgHdr<'addr, 'bufs, 'control>

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

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

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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.