Node / rns-mirrors / Reticulum-Go.git / files / pkg / node / netmon.go

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// SPDX-License-Identifier: Apache-2.0

// Copyright (c) 2024-2026 Quad4.io

//go:build !js

package node

import (

"time"

"quad4/reticulum-go/pkg/debug"

"quad4/reticulum-go/pkg/health"

)

const interfaceMonitorInterval = 10 * time.Second

// startInterfaceMonitor polls OS network interfaces and calls OnNetworkAvailable

// when link state or addresses change. Uses net.Interfaces and works on Linux,

// Android, Windows, macOS, and BSD on any CPU architecture.

func (n *Node) startInterfaceMonitor() {

go func() {

ticker := time.NewTicker(interfaceMonitorInterval)

defer ticker.Stop()

last := currentInterfaceSnapshot()

for range ticker.C {

cur := currentInterfaceSnapshot()

if interfaceSnapshotsEqual(last, cur) {

continue

}

last = cur

health.Inc("", health.KindNetmonFlap)

if err := n.OnNetworkAvailable(); err != nil {

debug.Log(debug.DebugVerbose, "interface monitor refresh", "error", err)

}

}

}()

}