gate

Documentation

Index

• type Gate
  • func New(length int) *Gate
  • func (g *Gate) Done()
  • func (g *Gate) Start(ctx context.Context) error

Types

type Gate

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

A Gate controls the maximum number of concurrently running and waiting queries.

func New

func New(length int) *Gate

NewGate returns a query gate that limits the number of queries being concurrently executed.

func (*Gate) Done

func (g *Gate) Done()

Done releases a single spot in the gate.

func (*Gate) Start

func (g *Gate) Start(ctx context.Context) error

Start blocks until the gate has a free spot or the context is done.