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45 lines
1.7 KiB
Python
45 lines
1.7 KiB
Python
# Copyright (C) 2006-2014 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""Status message handling"""
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import time
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from . import task
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from .. import log, LOG_CHECK, strformat
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class Interrupt(task.CheckedTask):
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"""Thread that raises KeyboardInterrupt after a specified duration.
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This gives us a portable SIGALRM implementation.
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The duration is checked every 5 seconds.
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"""
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WaitSeconds = 5
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def __init__(self, duration):
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"""Initialize the task.
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@param duration: raise KeyboardInterrupt after given number of seconds
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@ptype duration: int
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"""
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super(Interrupt, self).__init__()
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self.duration = duration
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def run_checked(self):
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"""Wait and raise KeyboardInterrupt after."""
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self.start_time = time.time()
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self.setName("Interrupt")
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while not self.stopped(self.WaitSeconds):
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duration = time.time() - self.start_time
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if duration > self.duration:
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log.warn(LOG_CHECK, "Interrupt after %s" % strformat.strduration_long(duration))
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raise KeyboardInterrupt()
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