// Package deadlineconn implements net.Conn wrapper with configured deadlines.
package deadlineconn

import (
	"context"
	"net"
	"sync"
	"sync/atomic"
	"time"
)

// updateInterval is the minimum time between deadline updates.
const updateInterval = 250 * time.Millisecond

// DeadlineConn - is a generic stream-oriented network connection supporting buffered reader and read/write timeout.
type DeadlineConn struct {
	net.Conn

    public boolean isUpdateRequired(RepositoryMetadata metadata, ArtifactRepository repository, File file) {
        // Here, we need to determine which policy to use. Release updateInterval will be used when
        // the metadata refers to a release artifact or meta-version, and snapshot updateInterval will be used when
        // it refers to a snapshot artifact or meta-version.

		// Set a deadline in the past to indicate we want the next read to fail.
		// Ensure we don't override it on read.
		deadlineconn.SetReadDeadline(time.Unix(1, 0))

		// Be sure to exceed update interval
		time.Sleep(updateInterval * 2)

		_, terr = deadlineconn.Read(b)
		if terr == nil {
			cerr = fmt.Errorf("could read from client, expected error, got %v", terr)
			return
		}
	}()

	c, err := net.Dial("tcp", serverAddr)