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tailscale/net/speedtest/speedtest_client.go

43 lines
1.0 KiB
Go

// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package speedtest
import (
"encoding/json"
"errors"
"net"
"time"
)
// RunClient dials the given address and starts a speedtest.
// It returns any errors that come up in the tests.
// If there are no errors in the test, it returns a slice of results.
func RunClient(direction Direction, duration time.Duration, host string) ([]Result, error) {
conn, err := net.Dial("tcp", host)
if err != nil {
return nil, err
}
conf := config{TestDuration: duration, Version: version, Direction: direction}
defer conn.Close()
encoder := json.NewEncoder(conn)
if err = encoder.Encode(conf); err != nil {
return nil, err
}
var response configResponse
decoder := json.NewDecoder(conn)
if err = decoder.Decode(&response); err != nil {
return nil, err
}
if response.Error != "" {
return nil, errors.New(response.Error)
}
return doTest(conn, conf)
}