tailscale/wgengine/monitor/monitor_polling.go

// Copyright (c) 2020 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.

// +build !linux,!freebsd,!windows,!darwin android

package monitor

import (
	"tailscale.com/types/logger"
)

func newOSMon(logf logger.Logf, m *Mon) (osMon, error) {
	return newPollingMon(logf, m)
}

// unspecifiedMessage is a minimal message implementation that should not
// be ignored. In general, OS-specific implementations should use better
// types and avoid this if they can.
type unspecifiedMessage struct{}

func (unspecifiedMessage) ignore() bool { return false }
wgengine/monitor: on unsupported platforms, use a polling implementation Not great, but lets people working on new ports get going more quickly without having to do everything up front. As the link monitor is getting used more, I felt bad having a useless implementation. Updates #815 Updates #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> 4 years ago			`// Copyright (c) 2020 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.`

			`// +build !linux,!freebsd,!windows,!darwin android`

			`package monitor`

			`import (`
			`"tailscale.com/types/logger"`
			`)`

			`func newOSMon(logf logger.Logf, m *Mon) (osMon, error) {`
wgengine/monitor: Linux fall back to polling Google Cloud Run does not implement NETLINK_ROUTE RTMGRP. If initialization of the netlink socket or group membership fails, fall back to a polling implementation. Signed-off-by: Denton Gentry <dgentry@tailscale.com> 4 years ago			`return newPollingMon(logf, m)`
wgengine/monitor: on unsupported platforms, use a polling implementation Not great, but lets people working on new ports get going more quickly without having to do everything up front. As the link monitor is getting used more, I felt bad having a useless implementation. Updates #815 Updates #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> 4 years ago			`}`

			`// unspecifiedMessage is a minimal message implementation that should not`
			`// be ignored. In general, OS-specific implementations should use better`
			`// types and avoid this if they can.`
			`type unspecifiedMessage struct{}`

			`func (unspecifiedMessage) ignore() bool { return false }`