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