Struct AncillaryBuilder

pub struct AncillaryBuilder<'a> { /* private fields */ }

Available on crate features io and ancillary only.

Expand description

Helper to construct ancillary (control) messages.

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impl<'a> AncillaryBuilder<'a>

pub fn new(buffer: &'a mut [MaybeUninit<u8>]) -> AncillaryBuilder<'a>

Create AncillaryBuilder with the given buffer. The buffer will be zeroed on creation.

§Panics

This function will panic if the buffer is too short or not properly aligned.

pub fn finish(self) -> usize

Finishes building, returns length of the control message.

pub fn try_push<T>(&mut self, level: i32, ty: i32, value: T) -> Option<()>

Try to append a control message entry into the buffer. If the buffer does not have enough space or is not properly aligned with the value type, returns None.

Auto Trait Implementations§

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impl<'a> !UnwindSafe for AncillaryBuilder<'a>

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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