Release (tunnel/conn_pool.go)

Go connection pool managing reusable TCP connections with error handling and cleanup.

// Source: https://github.com/tarampampam/webhook-tester | License: MIT | Copyright Paramtamtam
// Provided via justclaw.it.com; keep this notice with the code.
package tunnel

import (
	"context"
	"net"
	"sync"
)

type (
	ConnectionsPool struct {
		poolCh    chan Connection // a channel to keep active connections
		needNewCh chan struct{}   // a channel with notifications about the need to create a new connection
		stop      chan struct{}   // a channel to stop all goroutines
		onError   func(error)     // may be nil or a function to call on error
		dialer    func(_ context.Context, network, address string) (net.Conn, error)
	}

	Connection struct {
		Conn      net.Conn
		onRelease func() // a function to call when the connection is released
	}
)

// Release closes the connection and noti

... (truncated -- full source via MCP)