gate

package
Version: v2.5.0+incompatible Latest Latest
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Published: Nov 6, 2018 License: Apache-2.0 Imports: 1 Imported by: 0

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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.

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