Struct slottle::ThrottleLog

pub struct ThrottleLog { /* fields omitted */ }

Collect operation log of a Throttle.

User can access this log by ThrottleBuilder::interval() API by Interval.

ThrottleLog will drop oldest log records automatically when it reach it size limit.

Implementations

impl ThrottleLog

pub fn size(&self) -> usize

Get maximum log size.

This value would never change.

pub fn failure_count(&self) -> usize

Get how many failures exists in log.

Example

(Left is new, right is old, F = Failure, S = Successful)

• FFFFF: 5
• FFSFF: 4
• SFFFF: 4
• FSSSS: 1

pub fn failure_count_cont(&self) -> usize

Get how many failures from newest log entry continuously.

Example

(Left is new, right is old, F = Failure, S = Successful)

• FFFFF: 5
• FFSFF: 2
• SFFFF: 0
• FSSSS: 1

pub fn failure_rate(&self) -> Option<f64>

Get failure rate in whole log.

Example

(Left is new, right is old, F = Failure, S = Successful)

• FFFFF: 1.0
• FFSFF: 0.8
• SFFFF: 0.8
• FSSSS: 0.2

This function use size as denominator. Return None if size == 0.

pub fn duration(&self) -> Option<Duration>

Get duration between first and last log record.

Return None if don’t have at least 2 log records.

Trait Implementations

impl Clone for ThrottleLog

fn clone(&self) -> ThrottleLog

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ThrottleLog

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

Formats the value using the given formatter.

impl Eq for ThrottleLog

impl Hash for ThrottleLog

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<ThrottleLog> for ThrottleLog

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

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

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

This method tests for !=.

impl StructuralEq for ThrottleLog

impl StructuralPartialEq for ThrottleLog