retry

package

v0.9.71 Latest Latest Go to latest Published: Jun 29, 2020 License: Apache-2.0 Imports: 3 Imported by: 1

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Repository

github.com/moiot/gravity

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Documentation ¶

Index ¶

Variables
func Do(fn Func, retries int, sleep time.Duration) error
func DoCondition(fn ConditionFunc, retries int, sleep time.Duration) error
type Condition
type ConditionFunc
type Func
type HTTPFunc

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	DefaultSleep         = 1 * time.Second
	ReadableDefaultSleep = "1s"
)

Functions ¶

func Do ¶

func Do(fn Func, retries int, sleep time.Duration) error

Do runs the passed function until the number of retries is reached. Whenever Func returns err it will sleep and Func will be executed again in a recursive fashion. The sleep value is slightly modified on every retry (exponential backoff) to prevent the thundering herd problem (https://en.wikipedia.org/wiki/Thundering_herd_problem). If no value is given to sleep it will defaults to 500ms.

func DoCondition ¶

func DoCondition(fn ConditionFunc, retries int, sleep time.Duration) error

Types ¶

type Condition ¶

type Condition bool

const (
	Break    Condition = true
	Continue Condition = false
)

type ConditionFunc ¶

type ConditionFunc func() (Condition, error)

ConditionFunc returns additional flag determine whether to break retry or not.

type Func ¶

type Func func() error

Func is the function to be executed and eventually retried.

type HTTPFunc ¶

type HTTPFunc func() (*http.Response, error)

HTTPFunc is the function to be executed and eventually retried. The only difference from Func is that it expects an *http.Response on the first returning argument.

Source Files ¶

View all Source files

retry.go

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