errgroup

package
v0.0.0-...-38618e0 Latest Latest
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 Go to latest Published: Oct 19, 2022 License: MIT Imports: 3 Imported by: 0

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Functions

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Types

type Group 

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

A Group is a collection of goroutines working on subtasks that are part of the same overall task.

A zero Group is valid and does not cancel on error.

func WithContext 

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

WithContext returns a new Group and an associated Context derived from ctx.

The derived Context is canceled the first time a function passed to Go returns a non-nil error or the first time Wait returns, whichever occurs first.

func WithOutContext 

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

WithOutContext returns a new Group without associated Context.

The derived Context is canceled the first time a function passed to Go returns a non-nil error or the first time Wait returns, whichever occurs first.

func (*Group) Go 

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

Go calls the given function in a new goroutine.

The first call to return a non-nil error cancels the group; its error will be returned by Wait.

func (*Group) Wait 

func (g *Group) Wait() error

Wait blocks until all function calls from the Go method have returned, then returns the first non-nil error (if any) from them.

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