Struct FlakeyTargetParams

pub struct FlakeyTargetParams {
    pub device: Device,
    pub start_offset: Sectors,
    pub up_interval: u32,
    pub down_interval: u32,
    pub feature_args: HashSet<FeatureArg>,
}

Target params for flakey target

Fields

device: Device

The device on which this segment resides

start_offset: Sectors

The starting offset of this segments in the device.

up_interval: u32

Interval during which flakey target is up, in seconds DM source type is unsigned, so restrict to u32.

down_interval: u32

Interval during which flakey target is down, in seconds DM source type is unsigned, so restrict to u32.

feature_args: HashSet<FeatureArg>

Optional feature arguments

Implementations

impl FlakeyTargetParams

pub fn new( device: Device, start_offset: Sectors, up_interval: u32, down_interval: u32, feature_args: Vec<FeatureArg>, ) -> FlakeyTargetParams

Create a new flakey target param struct.

Trait Implementations

impl Clone for FlakeyTargetParams

fn clone(&self) -> FlakeyTargetParams

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FlakeyTargetParams

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

Formats the value using the given formatter.

impl Display for FlakeyTargetParams

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

Generate params to be passed to DM. The format of the params is:

<dev path> <offset> <up interval> <down interval> [<num_features> [<feature arguments>]]

Mandatory parameters:

• <dev path>: Full pathname to the underlying block-device, or a “major:minor” device-number.
• <offset>: Starting sector within the device.
• <up interval>: Number of seconds device is available.
• <down interval>: Number of seconds device returns errors.

Optional feature parameters: If no feature parameters are present, during the periods of unreliability, all I/O returns errors.

impl FromStr for FlakeyTargetParams

type Err = DmError

The associated error which can be returned from parsing.

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

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

impl PartialEq for FlakeyTargetParams

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

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 TargetParams for FlakeyTargetParams

fn param_str(&self) -> String

Return the param string only

fn target_type(&self) -> TargetTypeBuf

Return the target type

impl Eq for FlakeyTargetParams

impl StructuralPartialEq for FlakeyTargetParams