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add VCSA watchdog prototype

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This commit is contained in:
chrys 2017-06-22 01:27:31 +02:00
parent 42ade1fbf8
commit b0604a9907
1 changed files with 23 additions and 27 deletions
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50
play zone/epollScreen.py
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@ -3,39 +3,35 @@
import select
import time
currScreen = '2'
vcsa = {}
for i in range(1,7):
vcsa[str(i)] = open('/dev/vcs'+str(i),'rb')
vcsa[str(i)].read()
tty = open('/sys/devices/virtual/tty/tty0/active','r')
oldTty = str(tty.read()[3:-1])
watchdog = select.poll()
currScreen = str(tty.read()[3:-1])
oldScreen = currScreen
watchdog = select.epoll()
watchdog.register(vcsa[currScreen], select.EPOLLPRI)
watchdog.register(tty, select.EPOLLPRI)
watchdog.register(vcsa[ oldTty ], select.EPOLLPRI)
while True:
changed = watchdog.poll()
changes = watchdog.poll()
print('-----------------------------')
print(changed,tty.fileno())
for fileno, event in changed:
if tty.fileno() == fileno:
currTty = tty.seek(0)
#b = open('/sys/devices/virtual/tty/tty0/active','r')
currTty = str(tty.read()[3:-1])
print('|'+currTty+'|'+oldTty+'|')
if currTty != oldTty:
watchdog.register(vcsa[ currTty ].fileno(), select.EPOLLPRI)
watchdog.unregister(vcsa[ oldTty ].fileno())
oldTty = currTty
print('new screen ' + currTty)
print(changes)
for change in changes:
fileno = change[0]
event = change[1]
print(change,fileno, tty.fileno())
if fileno == tty.fileno():
tty.seek(0)
currScreen = str(tty.read()[3:-1])
if currScreen != oldScreen:
watchdog.unregister(vcsa[ oldScreen ])
watchdog.register(vcsa[ currScreen ], select.EPOLLPRI)
oldScreen = currScreen
print('new screen '+ currScreen)
else:
print('update '+ currTty + ' ' + str(fileno))
vcsa[currTty].seek(0)
b = vcsa[currTty].read()
#print(b)
time.sleep(0.5)
vcsa[currScreen].seek(0)
content = vcsa[currScreen].read()
print('update '+ str(time.time()))