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fix VCSA watchdog if VCSA device does not exist

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This commit is contained in:
chrys 2017-07-08 02:44:07 +02:00
parent a2acd14d9d
commit aacf1f02d1
1 changed files with 19 additions and 6 deletions
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17
src/fenrir/screenDriver/vcsaDriver.py
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@ -7,6 +7,7 @@
import difflib
import re
import subprocess
import glob, os
import fcntl
import termios
import time
@ -100,8 +101,10 @@ class driver():
def updateWatchdog(self,active , eventQueue):
try:
vcsa = {}
for i in range(1,7):
vcsa[str(i)] = open('/dev/vcsa'+str(i),'rb')
vcsaDevices = glob.glob('/dev/vcsa*')
for vcsaDev in vcsaDevices:
index = vcsaDev[9:]
vcsa[str(index)] = open(vcsaDev,'rb')
tty = open('/sys/devices/virtual/tty/tty0/active','r')
currScreen = str(tty.read()[3:-1])
@ -120,12 +123,21 @@ class driver():
tty.seek(0)
currScreen = str(tty.read()[3:-1])
if currScreen != oldScreen:
try:
watchdog.unregister(vcsa[ oldScreen ])
except:
pass
try:
watchdog.register(vcsa[ currScreen ], select.EPOLLPRI)
except:
pass
oldScreen = currScreen
eventQueue.put({"Type":fenrirEventType.ScreenChanged,"Data":''})
try:
vcsa[currScreen].seek(0)
lastScreenContent = vcsa[currScreen].read()
except:
lastScreenContent = b''
else:
self.env['runtime']['debug'].writeDebugOut('ScreenUpdate',debug.debugLevel.INFO)
vcsa[currScreen].seek(0)
@ -135,6 +147,7 @@ class driver():
lastScreenContent = screenContent
except Exception as e:
self.env['runtime']['debug'].writeDebugOut('VCSA:updateWatchdog:' + str(e),debug.debugLevel.ERROR)
def update(self, trigger='onUpdate'):
if trigger == 'onInput': # no need for an update on input for VCSA
return