workqueue

package
v0.20.0-alpha2 Latest Latest
Warning

This package is not in the latest version of its module.

Go to latest
Published: Jan 29, 2016 License: Apache-2.0, Apache-2.0 Imports: 1 Imported by: 0

Documentation

Overview

Package workqueue provides a simple queue that supports the following features:

  • Fair: items processed in the order in which they are added.
  • Stingy: a single item will not be processed multiple times concurrently, and if an item is added multiple times before it can be processed, it will only be processed once.
  • Multiple consumers and producers. In particular, it is allowed for an item to be reenqueued while it is being processed.
  • Shutdown notifications.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Type

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

Type is a work queue (see the package comment).

func New

func New() *Type

New constructs a new workqueue (see the package comment).

func (*Type) Add

func (q *Type) Add(item interface{})

Add marks item as needing processing.

func (*Type) Done

func (q *Type) Done(item interface{})

Done marks item as done processing, and if it has been marked as dirty again while it was being processed, it will be re-added to the queue for re-processing.

func (*Type) Get

func (q *Type) Get() (item interface{}, shutdown bool)

Get blocks until it can return an item to be processed. If shutdown = true, the caller should end their goroutine. You must call Done with item when you have finished processing it.

func (*Type) Len

func (q *Type) Len() int

Len returns the current queue length, for informational purposes only. You shouldn't e.g. gate a call to Add() or Get() on Len() being a particular value, that can't be synchronized properly.

func (*Type) ShutDown

func (q *Type) ShutDown()

Shutdown will cause q to ignore all new items added to it. As soon as the worker goroutines have drained the existing items in the queue, they will be instructed to exit.

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL