multierror

Documentation

Index

• type Builder
  • func NewBuilder(max int) *Builder
  • func (b *Builder) Add(err error)
  • func (b *Builder) Err() error

Types

type Builder

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

Builder captures errors from parallel goroutines.

Example usage:

var (
	errs = multierror.NewBuilder(3)
	wg   sync.WaitGroup
)
for _, foo := range foos {
	wg.Add(1)
	go func() {
		defer wg.Done()
		errs.Add(someWork(foo))
	}()
}
wg.Wait()
if err := errs.Err(); err != nil {
	// handle err
}

func NewBuilder

func NewBuilder(max int) *Builder

func (*Builder) Add

func (b *Builder) Add(err error)

Add adds an error to b. b must be non-nil.

func (*Builder) Err

func (b *Builder) Err() error

Err returns an error combining all the errors that were already Add-ed. Otherwise returns nil. b may be nil.