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// Package pool implements a pool of net.Conn interfaces to manage and reuse them.
package pool
import (
"errors"
"net"
)
var (
// ErrClosed is the error resulting if the pool is closed via pool.Close().
ErrClosed = errors.New("pool is closed")
)
// Pool interface describes a pool implementation. A pool should have maximum
// capacity. An ideal pool is threadsafe and easy to use.
type Pool interface {
// Get returns a new connection from the pool. Closing the connections puts
// it back to the Pool. Closing it when the pool is destroyed or full will
// be counted as an error.
Get() (net.Conn, error)
// Close closes the pool and all its connections. After Close() the pool is
// no longer usable.
Close()
// Len returns the current number of connections of the pool.
Len() int
}
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