pub struct MessageHeader {
    pub channel: usize,
    pub source: usize,
    pub target: usize,
    pub length: usize,
    pub seqno: usize,
}
Expand description

Framing data for each Vec<u8> transmission, indicating a typed channel, the source and destination workers, and the length in bytes.

Fields§

§channel: usize

index of channel.

§source: usize

index of worker sending message.

§target: usize

index of worker receiving message.

§length: usize

number of bytes in message.

§seqno: usize

sequence number.

Implementations§

source§

impl MessageHeader

source

pub fn try_read(bytes: &mut [u8]) -> Option<MessageHeader>

Returns a header when there is enough supporting data

source

pub fn write_to<W: Write>(&self, writer: &mut W) -> Result<()>

Writes the header as binary data.

source

pub fn required_bytes(&self) -> usize

The number of bytes required for the header and data.

Trait Implementations§

source§

impl Abomonation for MessageHeader

source§

unsafe fn entomb<W: Write>(&self, _write: &mut W) -> Result<()>

Write any additional information about &self beyond its binary representation. Read more
source§

fn extent(&self) -> usize

Reports the number of further bytes required to entomb self.
source§

unsafe fn exhume<'a, 'b>( &'a mut self, bytes: &'b mut [u8] ) -> Option<&'b mut [u8]>

Recover any information for &mut self not evident from its binary representation. Read more
source§

impl Clone for MessageHeader

source§

fn clone(&self) -> MessageHeader

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for MessageHeader

source§

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

Formats the value using the given formatter. Read more
source§

impl Hash for MessageHeader

source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl PartialEq for MessageHeader

source§

fn eq(&self, other: &MessageHeader) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl Copy for MessageHeader

source§

impl Eq for MessageHeader

source§

impl StructuralEq for MessageHeader

source§

impl StructuralPartialEq for MessageHeader

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.