Method Close

chapter7/patterns/pool/pool.go:83–104

Close will shutdown the pool and close all existing resources.

()

// Close will shutdown the pool and close all existing resources.
func (p *Pool) Close() {
	// Secure this operation with the Release operation.
	p.m.Lock()
	defer p.m.Unlock()

	// If the pool is already close, don't do anything.
	if p.closed {
		return
	}

	// Set the pool as closed.
	p.closed = true

	// Close the channel before we drain the channel of its
	// resources. If we don't do this, we will have a deadlock.
	close(p.resources)

	// Close the resources
	for r := range p.resources {
		r.Close()
	}
}