[][src]Struct libbpf_rs::Map

pub struct Map { /* fields omitted */ }

Represents a created map.

Some methods require working with raw bytes. You may find libraries such as plain helpful.

Implementations

impl Map[src]

pub fn name(&self) -> &str[src]

pub fn fd(&self) -> i32[src]

Returns a file descriptor to the underlying map.

pub fn map_type(&self) -> MapType[src]

pub fn key_size(&self) -> u32[src]

Key size in bytes

pub fn value_size(&self) -> u32[src]

Value size in bytes

pub fn pin<P: AsRef<Path>>(&mut self, path: P) -> Result<()>[src]

Pin this map to bpffs.

pub fn unpin<P: AsRef<Path>>(&mut self, path: P) -> Result<()>[src]

Unpin from bpffs

pub fn lookup(&self, key: &[u8], flags: MapFlags) -> Result<Option<Vec<u8>>>[src]

Returns map value as Vec of u8.

key must have exactly Map::key_size() elements.

pub fn delete(&mut self, key: &[u8]) -> Result<()>[src]

Deletes an element from the map.

key must have exactly Map::key_size() elements.

pub fn lookup_and_delete(&mut self, key: &[u8]) -> Result<Option<Vec<u8>>>[src]

Same as Map::lookup() except this also deletes the key from the map.

Note that this operation is currently only implemented in the kernel for MapType::Queue and MapType::Stack.

key must have exactly Map::key_size() elements.

pub fn update(
    &mut self,
    key: &[u8],
    value: &[u8],
    flags: MapFlags
) -> Result<()>
[src]

Update an element.

key must have exactly Map::key_size() elements. value must have exatly Map::value_size() elements.

Auto Trait Implementations

impl RefUnwindSafe for Map[src]

impl !Send for Map[src]

impl !Sync for Map[src]

impl Unpin for Map[src]

impl UnwindSafe for Map[src]

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.