Struct devicemapper::CacheTargetParams

pub struct CacheTargetParams {
    pub meta: Device,
    pub cache: Device,
    pub origin: Device,
    pub cache_block_size: Sectors,
    pub feature_args: HashSet<String>,
    pub policy: String,
    pub policy_args: HashMap<String, String>,
}

Struct representing params for a cache target

Fields

meta: Device

Cache metadata device

cache: Device

Cache device

origin: Device

Origin device with data to be cached

cache_block_size: Sectors

Cache block size

feature_args: HashSet<String>

Feature arguments

policy: String

IO policy

policy_args: HashMap<String, String>

IO policy arguments

Implementations

impl CacheTargetParams

pub fn new( meta: Device, cache: Device, origin: Device, cache_block_size: Sectors, feature_args: Vec<String>, policy: String, policy_args: Vec<(String, String)> ) -> CacheTargetParams

Create a new CacheTargetParams struct

Trait Implementations

impl Clone for CacheTargetParams

fn clone(&self) -> CacheTargetParams

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CacheTargetParams

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

Formats the value using the given formatter.

impl Display for CacheTargetParams

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

Formats the value using the given formatter.

impl FromStr for CacheTargetParams

type Err = DmError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> DmResult<CacheTargetParams>

Parses a string s to return a value of this type.

impl PartialEq for CacheTargetParams

fn eq(&self, other: &CacheTargetParams) -> 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 TargetParams for CacheTargetParams

fn param_str(&self) -> String

Return the param string only

fn target_type(&self) -> TargetTypeBuf

Return the target type

impl Eq for CacheTargetParams

impl StructuralEq for CacheTargetParams

impl StructuralPartialEq for CacheTargetParams