Enum libbpf_rs::MapType

#[non_exhaustive]
#[repr(u32)]
pub enum MapType {
    Unspec,
    Hash,
    Array,
    ProgArray,
    PerfEventArray,
    PercpuHash,
    PercpuArray,
    StackTrace,
    CgroupArray,
    LruHash,
    LruPercpuHash,
    LpmTrie,
    ArrayOfMaps,
    HashOfMaps,
    Devmap,
    Sockmap,
    Cpumap,
    Xskmap,
    Sockhash,
    CgroupStorage,
    ReuseportSockarray,
    PercpuCgroupStorage,
    Queue,
    Stack,
    SkStorage,
    DevmapHash,
    StructOps,
    RingBuf,
    InodeStorage,
    TaskStorage,
    BloomFilter,
    Unknown,
}

Type of a Map. Maps to enum bpf_map_type in kernel uapi.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unspec

Hash

Array

ProgArray

PerfEventArray

PercpuHash

PercpuArray

StackTrace

CgroupArray

LruHash

LruPercpuHash

LpmTrie

ArrayOfMaps

HashOfMaps

Devmap

Sockmap

Cpumap

Xskmap

Sockhash

CgroupStorage

ReuseportSockarray

PercpuCgroupStorage

Queue

Stack

SkStorage

DevmapHash

StructOps

RingBuf

InodeStorage

TaskStorage

BloomFilter

Unknown

We choose to specify our own “unknown” type here b/c it’s really up to the kernel to decide if it wants to reject the map. If it accepts it, it just means whoever using this library is a bit out of date.

Implementations

impl MapType

pub fn is_percpu(&self) -> bool

Returns if the map is of one of the per-cpu types.

pub fn is_supported(&self) -> Result<bool>

Detects if host kernel supports this BPF map type.

Make sure the process has required set of CAP_* permissions (or runs as root) when performing feature checking.

Trait Implementations

impl Clone for MapType

fn clone(&self) -> MapType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MapType

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

Formats the value using the given formatter.

impl Display for MapType

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

Formats the value using the given formatter.

impl From<MapType> for u32

fn from(enum_value: MapType) -> Self

Converts to this type from the input type.

impl PartialEq<MapType> for MapType

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

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

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.

impl TryFrom<u32> for MapType

type Error = TryFromPrimitiveError<MapType>

The type returned in the event of a conversion error.

fn try_from(number: u32) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for MapType

type Primitive = u32

const NAME: &'static str = _

fn try_from_primitive( number: Self::Primitive ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for MapType

impl Eq for MapType

impl StructuralEq for MapType

impl StructuralPartialEq for MapType