vapp

Documentation

Overview

copy from https://github.com/go-kratos/kratos/blob/v2/app.go

Index

• type App
  • func New(opts ...Option) *App
  • func (a *App) Append(lc Lifecycle)
  • func (a *App) AppendHook(hook Hook)
  • func (a *App) Run() error
  • func (a *App) Stop()
• type Hook
• type Lifecycle
• type Option
  • func Signal(fn func(*App, os.Signal), sigs ...os.Signal) Option
  • func StartTimeout(d time.Duration) Option
  • func StopTimeout(d time.Duration) Option

Types

type App

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

App is an application components lifecycle manager

func New

func New(opts ...Option) *App

New create an application lifecycle manager.

func (*App) Append

func (a *App) Append(lc Lifecycle)

Append register interface that are executed on application start and stop.

func (*App) AppendHook

func (a *App) AppendHook(hook Hook)

AppendHook register callbacks that are executed on application start and stop.

func (*App) Run

func (a *App) Run() error

Run executes all OnStart hooks registered with the application's Lifecycle.

func (*App) Stop

func (a *App) Stop()

Stop gracefully stops the application.

type Hook

type Hook struct {
	OnStart func(context.Context) error
	OnStop  func(context.Context) error
}

Hook is a pair of start and stop callbacks.

type Lifecycle

type Lifecycle interface {
	Start(context.Context) error
	Stop(context.Context) error
}

Lifecycle is component lifecycle.

type Option

type Option func(o *options)

Option is an application option.

func Signal

func Signal(fn func(*App, os.Signal), sigs ...os.Signal) Option

Signal with os signals.

func StartTimeout

func StartTimeout(d time.Duration) Option

StartTimeout with start timeout.

func StopTimeout

func StopTimeout(d time.Duration) Option

StopTimeout with stop timeout.