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51 lines
1.0 KiB
Go
51 lines
1.0 KiB
Go
//go:build !android
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package dns
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import (
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"context"
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"fmt"
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"time"
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"github.com/godbus/dbus/v5"
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log "github.com/sirupsen/logrus"
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)
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const dbusDefaultFlag = 0
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func isDbusListenerRunning(dest string, path dbus.ObjectPath) bool {
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obj, closeConn, err := getDbusObject(dest, path)
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if err != nil {
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log.Tracef("error getting dbus object: %s", err)
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return false
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}
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defer closeConn()
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ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
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defer cancel()
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if err = obj.CallWithContext(ctx, "org.freedesktop.DBus.Peer.Ping", 0).Store(); err != nil {
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log.Tracef("error calling dbus: %s", err)
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return false
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}
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return true
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}
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func getDbusObject(dest string, path dbus.ObjectPath) (dbus.BusObject, func(), error) {
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conn, err := dbus.SystemBus()
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if err != nil {
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return nil, nil, fmt.Errorf("get dbus: %w", err)
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}
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obj := conn.Object(dest, path)
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closeFunc := func() {
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closeErr := conn.Close()
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if closeErr != nil {
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log.Warnf("got an error closing dbus connection, err: %s", closeErr)
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}
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}
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return obj, closeFunc, nil
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}
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