mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-25 11:05:45 +00:00
71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
30 lines
791 B
Go
30 lines
791 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
// Package netknob has Tailscale network knobs.
|
|
package netknob
|
|
|
|
import (
|
|
"runtime"
|
|
"time"
|
|
)
|
|
|
|
// PlatformTCPKeepAlive returns the default net.Dialer.KeepAlive
|
|
// value for the current runtime.GOOS.
|
|
func PlatformTCPKeepAlive() time.Duration {
|
|
switch runtime.GOOS {
|
|
case "ios", "android":
|
|
// Disable TCP keep-alives on mobile platforms.
|
|
// See https://github.com/golang/go/issues/48622.
|
|
//
|
|
// TODO(bradfitz): in 1.17.x, try disabling TCP
|
|
// keep-alives on for all platforms.
|
|
return -1
|
|
}
|
|
|
|
// Otherwise, default to 30 seconds, which is mostly what we
|
|
// used to do. In some places we used the zero value, which Go
|
|
// defaults to 15 seconds. But 30 seconds is fine.
|
|
return 30 * time.Second
|
|
}
|