Struct SgData 

pub struct SgData { /* private fields */ }

High Level scatter gather list wrapper for multiple data representation methods.

Safety: When creating SgData from Iovec / SgList, it is assumed that these

strustures live longer than the created SgData lifetime.

This is the user responsibility taking care of

allocating/deallocating Iovec / SgList memory.

Implementations

impl SgData

pub fn to_vec(&self) -> Vec<u8>

Copies self into a Vector

pub unsafe fn drain_into(self, iovec: *mut iovec, count: usize) -> Self

Moves the data contained in this SgData instance into iovec. Consumes this instance and creates a new one, based on the buffers described by iovec and count.

pub fn masked(&self, mask: Range<usize>) -> Self

Applies the mask to the current object and creates a new SgData object which describes only masked region

pub fn clone_masked(&self, mask: Range<usize>) -> Self

pub unsafe fn from_sglist(sglist: SgList) -> Self

pub fn iter(&self) -> impl Iterator<Item = &[u8]>

Iterates over all the underlying byte slices of this SgData.

pub fn size(&self) -> usize

Returns number of elements in the underlying object, NOT the total number of bytes.

pub fn capacity(&self) -> usize

Returns the total number of bytes in the underlying object.

pub fn is_empty(&self) -> bool

Checks this SgData for containing any byte slice

pub fn with_capacity(capacity: usize) -> Self

Create an SgData with specified capacity

Trait Implementations

impl Add for SgData

type Output = SgData

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self::Output

Performs the + operation.

impl AddAssign for SgData

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for SgData

fn clone(&self) -> SgData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SgData

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

Formats the value using the given formatter.

impl Default for SgData

fn default() -> SgData

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SgData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Extend<SgData> for SgData

fn extend<T>(&mut self, iter: T)

where T: IntoIterator<Item = Self>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl Extend<u8> for SgData

fn extend<T>(&mut self, iter: T)

where T: IntoIterator<Item = u8>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl From<Iovec> for SgData

fn from(iov: Iovec) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<u8>>> for SgData

fn from(sgvec: Vec<Vec<u8>>) -> Self

Converts to this type from the input type.

impl From<Vec<u8>> for SgData

fn from(vec: Vec<u8>) -> Self

Converts to this type from the input type.

impl<I: Into<Self>> FromIterator<I> for SgData

fn from_iter<U>(iter: U) -> Self

where U: IntoIterator<Item = I>,

Creates a value from an iterator.

impl FromIterator<u8> for SgData

fn from_iter<I>(iter: I) -> Self

where I: IntoIterator<Item = u8>,

Creates a value from an iterator.

impl PartialEq for SgData

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

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

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for SgData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Value for SgData

fn serialize( &self, _record: &Record<'_>, key: Key, serializer: &mut dyn Serializer, ) -> Result

Serialize self into Serializer