asyncworker

Documentation

Index

• Constants
• func EmitAsyncedMetrics(ctx context.Context, tags ...metrics.MetricTag) error
• func EmitCustomizedAsyncedMetrics(ctx context.Context, metricName string, metricValue int64, ...) error
• type AsyncWorkers
  • func NewAsyncWorkers(name string, emitter metrics.MetricEmitter) *AsyncWorkers
  • func (aws *AsyncWorkers) AddWork(workName string, work *Work, policy DuplicateWorkPolicy) error
  • func (aws *AsyncWorkers) Start(stopCh <-chan struct{}) error
  • func (aws *AsyncWorkers) WorkExists(workName string) bool
• type DuplicateWorkPolicy
• type Work

Constants

const (
	DuplicateWorkPolicyOverride = "override"
	DuplicateWorkPolicyDiscard  = "discard"
)

const WorkNameSeperator = "/"

WorkNameSeperator is used to assemble standard work-name and we have assumptions below, for work-name 'a/b/c': - 'a' and 'b' are specified identifiers for objects/triggers(etc.) on the action - 'c' is a general identifier for actions

Functions

func EmitAsyncedMetrics

func EmitAsyncedMetrics(ctx context.Context, tags ...metrics.MetricTag) error

EmitAsyncedMetrics emit metrics through metricEmitter and metricName parsed from context

func EmitCustomizedAsyncedMetrics

func EmitCustomizedAsyncedMetrics(ctx context.Context, metricName string, metricValue int64, tags ...metrics.MetricTag) error

EmitAsyncedMetrics emit metrics through metricEmitter parsed from context and provided metricName & metricValue & tags

Types

type AsyncWorkers

type AsyncWorkers struct {
	// contains filtered or unexported fields
}

func NewAsyncWorkers

func NewAsyncWorkers(name string, emitter metrics.MetricEmitter) *AsyncWorkers

func (*AsyncWorkers) AddWork

func (aws *AsyncWorkers) AddWork(workName string, work *Work, policy DuplicateWorkPolicy) error

func (*AsyncWorkers) Start

func (aws *AsyncWorkers) Start(stopCh <-chan struct{}) error

func (*AsyncWorkers) WorkExists

func (aws *AsyncWorkers) WorkExists(workName string) bool

type DuplicateWorkPolicy

type DuplicateWorkPolicy string

type Work

type Work struct {
	// Fn is the function to handle the work,
	// its first param must be of type context.Context,
	// it's allowed to have any number of other parameters of any type,
	// and can have only one return value with error type,
	// its prototype likes func(ctx context.Context, i int, s string, ...) error
	Fn interface{}
	// Params are parameters of the fn
	Params []interface{}
	// DeliverAt is the time at which the work is delivered
	DeliveredAt time.Time
}

Work contains details to handle by workers