added watchdog monitoring for service hard reanimation

debian/local/disablescreenblank.sh

@@ -2,8 +2,8 @@
 
 screen=${1:-0}
 
-# wait 20s for the display manager service to start and attach to screen 
-sleep 20
+# wait 10s for the display manager service to start and attach to screen 
+sleep 10
 
 /usr/bin/xset -display :$screen s off          # deactivate screen saver
 /usr/bin/xset -display :$screen -dpms          # disable DPMS

debian/octoprint-tft.service

@@ -4,14 +4,14 @@ [email protected]
 After=systemd-user-sessions.service [email protected] plymouth-quit.service
 
 [Service]
+Type=notify
+NotifyAccess=all
 EnvironmentFile=/etc/octoprint-tft-environment
 ExecStart=/usr/bin/xinit /usr/bin/OctoPrint-TFT -- :0 -nolisten tcp -nocursor
 ExecStartPost=/etc/disablescreenblank.sh 0
 StandardOutput=journal
 Restart=always
-RestartSec=1s
-TimeoutStopSec=5s
-IgnoreSIGPIPE=no
+WatchdogSec=10s
 
 [Install]
 WantedBy=graphical.target

ui/ui.go

@@ -6,6 +6,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/coreos/go-systemd/daemon"
 	"github.com/gotk3/gotk3/gdk"
 	"github.com/gotk3/gotk3/gtk"
 	"github.com/mcuadros/go-octoprint"
@@ -80,6 +81,8 @@ func (ui *UI) initialize() {
 	ui.g = MustGrid()
 	ui.o.Add(ui.g)
 	ui.o.AddOverlay(ui.Notifications)
+
+	daemon.SdNotify(false, "READY=1")
 }
 
 func (ui *UI) loadStyle() {
@@ -97,6 +100,8 @@ func (ui *UI) loadStyle() {
 var errMercyPeriod = time.Second * 30
 
 func (ui *UI) verifyConnection() {
+	daemon.SdNotify(false, "WATCHDOG=1")
+
 	splash := NewSplashPanel(ui)
 
 	s, err := (&octoprint.ConnectionRequest{}).Do(ui.Printer)