38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
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#!/bin/python
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import select
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import time
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currScreen = '2'
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vcsa = {}
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for i in range(1,7):
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vcsa[str(i)] = open('/dev/vcs'+str(i),'rb')
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tty = open('/sys/devices/virtual/tty/tty0/active','r')
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currScreen = str(tty.read()[3:-1])
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oldScreen = currScreen
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watchdog = select.epoll()
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watchdog.register(vcsa[currScreen], select.EPOLLPRI)
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watchdog.register(tty, select.EPOLLPRI)
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while True:
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changes = watchdog.poll()
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print('-----------------------------')
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print(changes)
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for change in changes:
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fileno = change[0]
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event = change[1]
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print(change,fileno, tty.fileno())
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if fileno == tty.fileno():
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tty.seek(0)
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currScreen = str(tty.read()[3:-1])
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if currScreen != oldScreen:
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watchdog.unregister(vcsa[ oldScreen ])
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watchdog.register(vcsa[ currScreen ], select.EPOLLPRI)
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oldScreen = currScreen
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print('new screen '+ currScreen)
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else:
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vcsa[currScreen].seek(0)
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content = vcsa[currScreen].read()
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print('update '+ str(time.time()))
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