Documentation ¶
Overview ¶
Package singleflight provides a duplicate function call suppression mechanism. This package is a fork of the Go golang.org/x/sync/singleflight package. The package is forked, because the package a part of the unstable and unversioned golang.org/x/sync module.
https://github.com/golang/sync/tree/67f06af15bc961c363a7260195bcd53487529a21/singleflight
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Group ¶
type Group struct {
// contains filtered or unexported fields
}
Group represents a class of work and forms a namespace in which units of work can be executed with duplicate suppression.
func (*Group) Do ¶
func (g *Group) Do(key string, fn func() (interface{}, error)) (v interface{}, err error, shared bool)
Do executes and returns the results of the given function, making sure that only one execution is in-flight for a given key at a time. If a duplicate comes in, the duplicate caller waits for the original to complete and receives the same results. The return value shared indicates whether v was given to multiple callers.
func (*Group) DoChan ¶
DoChan is like Do but returns a channel that will receive the results when they are ready.
The returned channel will not be closed.