syncx

Documentation

Overview

Package syncx provides concurrency helpers: single-flight groups and cooperative cancellation utilities.

Index

• type Group
  • func (g *Group[T]) Do(ctx context.Context, key string, fn func(context.Context) (T, error)) (value T, shared bool, err error)
  • func (g *Group[T]) Forget(key string)

Types

type Group

type Group[T any] struct {
	// contains filtered or unexported fields
}

Group is a generic single-flight group that suppresses duplicate in-flight calls for the same key.

func (*Group[T]) Do

func (g *Group[T]) Do(ctx context.Context, key string, fn func(context.Context) (T, error)) (value T, shared bool, err error)

Do executes fn for key, sharing the result with concurrent callers for the same key.

func (*Group[T]) Forget

func (g *Group[T]) Forget(key string)