limiter

package

v0.0.0-...-fd2add7 Latest Latest Go to latest Published: Nov 21, 2016 License: Apache-2.0, Apache-2.0 Imports: 1 Imported by: 0

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Package limiter schedules job execution while maintaining an upper limit on concurrency

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

Limiter schedules go routines for execution, while ensuring that no more than a pre-set limit run at any time.

func New(m int) *Limiter

New creates a new limiter with limit m.

func (l *Limiter) Close()

Close closes a session.

func (l *Limiter) Go(f func())

Go executes the function f when the goroutine limit allows it. Go wraps the execution of f around an Open/Close pair.

func (l *Limiter) Init(m int) *Limiter

Init resets this limiter and sets its limit to m.

func (l *Limiter) Open()

Open blocks until there are fewer than limit unclosed sessions. A session begins when Open returns.

func (l *Limiter) Throttle(f func())

Throttle executes copies of f greedily and continuously, making sure that at no time the limit is exceeded.

func (l *Limiter) Wait()

Wait blocks until all unclosed invokations to Open have been closed.