multierrgroup

README

Multierrgroup provides a marriage of x/sync/errgroup and hashicorp's multierror. Start up as many error-returning goroutines as you need and get a multierror with all the failures that occurred once they're all finished.

var meg multerrgroup.Group

meg.Go(func() error {
  // Do something dangerous
})

meg.Go(func() error {
  // Try something you know will probably never work
})

err := meg.Wait()

Documentation

Index

• type Group
  • func WithContext(ctx context.Context) (*Group, context.Context)
  • func (g *Group) Go(f func() error)
  • func (g *Group) GoWithContext(ctx context.Context, f func(context.Context) error)
  • func (g *Group) Wait() error

Types

type Group

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

A Group can perform many operations in parallel, returning all errors that occur, as a hashicorp/go-multierror.Error instance, once all operations have completed.

func WithContext

func WithContext(ctx context.Context) (*Group, context.Context)

func (*Group) Go

func (g *Group) Go(f func() error)

Go begins an operation in parallel.

func (*Group) GoWithContext

func (g *Group) GoWithContext(ctx context.Context, f func(context.Context) error)

GoWithContext is a helper for funcs or methods that already take a context, to avoid annoying boilerplate.

func (*Group) Wait

func (g *Group) Wait() error

Wait waits for all routines to return and returns the errors, if any.