Struct Pool

chapter7/patterns/pool/pool.go:15–20

Pool manages a set of resources that can be shared safely by multiple goroutines. The resource being managed must implement the io.Closer interface.

// multiple goroutines. The resource being managed must implement
// the io.Closer interface.
type Pool struct {
	m         sync.Mutex
	resources chan io.Closer
	factory   func() (io.Closer, error)
	closed    bool
}

// ErrPoolClosed is returned when an Acquire returns on a
// closed pool.