Enum rexsgdata::SgData

pub enum SgData {
    SgList(SgList),
    SgVec(Vec<Vec<u8>>),
    Direct(Vec<u8>),
    Element(Vec<Element>),
}

High Level wrapper for multiple data representation methods.

Variants

SgList(SgList)

Classic Scatter Gather list as it comes from C (array of iovec elements)

SgVec(Vec<Vec<u8>>)

Vec scatter-gather list

Direct(Vec<u8>)

Plain Vec buffer

Element(Vec<Element>)

Special case for iovec array that is itself a Rust' Vec

Methods

impl SgData

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

Iterates over all the underlying byte slices of this SgData.

pub fn len(&self) -> usize

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

pub fn is_empty(&self) -> bool

Checks this SgData for containing any byte slice

pub unsafe fn clone_into(self, iovec: *mut iovec, count: c_int) -> Self

Deprecated since 0.2.0

: use drain_into() instead

pub unsafe fn drain_into(self, iovec: *const 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 unsafe fn clone_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 append(&mut self, other: &mut Self)

Deprecated since 0.2.2

: use Extend::extend() instead

pub fn is_element(&self) -> bool

Checks whether this instance is built from Element

pub fn is_sglist(&self) -> bool

Checks whether this instance is built from SgList

pub fn as_sglist(&self) -> &SgList

If this object is built from SgList exposes the underlying SgList object.

pub fn to_sglist(&self) -> SgList

If this object is built from SgList clones the underlying SgList object.

pub fn zero(size: usize) -> Self

Creates an efficient (ZLE) zeroed buffer

Trait Implementations

impl Debug for SgData

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

Formats the value using the given formatter.

impl PartialEq for SgData

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

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

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

This method tests for !=.

impl From<SgList> for SgData

fn from(sglist: SgList) -> Self

Performs the conversion.

impl From<Vec<u8>> for SgData

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

Performs the conversion.

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

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

Performs the conversion.

impl From<Element> for SgData

fn from(elt: Element) -> Self

Performs the conversion.

impl From<Vec<Element>> for SgData

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

Performs the conversion.

impl From<SgData> for Vec<u8>

fn from(sgdata: SgData) -> Self

Performs the conversion.

impl FromIterator<u8> for SgData

fn from_iter<T>(iter: T) -> Self where     T: IntoIterator<Item = u8>,

Creates a value from an iterator.

impl FromIterator<Vec<u8>> for SgData

fn from_iter<T>(iter: T) -> Self where     T: IntoIterator<Item = Vec<u8>>,

Creates a value from an iterator.

impl FromIterator<Element> for SgData

fn from_iter<T>(iter: T) -> Self where     T: IntoIterator<Item = Element>,

Creates a value from an iterator.

impl IntoIterator for SgData

type Item = Vec<u8>

The type of the elements being iterated over.

type IntoIter = IntoIter<Self::Item>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

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.

impl<'a> Extend<&'a [u8]> for SgData

fn extend<T>(&mut self, iter: T) where     T: IntoIterator<Item = &'a [u8]>,

Extends a collection with the contents of an iterator.

impl Extend<Element> for SgData

fn extend<T>(&mut self, iter: T) where     T: IntoIterator<Item = Element>,

Extends a collection with the contents of an iterator.

impl<'a> Extend<&'a Element> for SgData

fn extend<T>(&mut self, iter: T) where     T: IntoIterator<Item = &'a Element>,

Extends a collection with the contents of an iterator.

impl Add for SgData

type Output = Self

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 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 Serializer ) -> Result

Serialize self into Serializer