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# Miro - an RSS based video player application
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# Copyright (C) 2005-2010 Participatory Culture Foundation
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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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# 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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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# In addition, as a special exception, the copyright holders give
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# permission to link the code of portions of this program with the OpenSSL
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# You must obey the GNU General Public License in all respects for all of
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# the code used other than OpenSSL. If you modify file(s) with this
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# exception, you may extend this exception to your version of the file(s),
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# but you are not obligated to do so. If you do not wish to do so, delete
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# this exception statement from your version. If you delete this exception
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# statement from all source files in the program, then also delete it here.
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"""Execute a callback and trap exceptions.
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from miro.clock import clock
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from miro import signals
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def trap_call(when, function, *args, **kwargs):
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"""Make a call to a function, but trap any exceptions and convert
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them into error signals. Return True if the function successfully
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completed, False if it threw an exception
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function(*args, **kwargs)
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except (SystemExit, KeyboardInterrupt):
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logging.debug("trap_call exception: %s %s %s", function, args, kwargs)
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signals.system.failed_exn(when)
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# Turn the next flag on to track the cumulative time for each when argument to
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# time_trap_call(). Don't do this for production builds though! Since we never
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# clean up the entries in the cumulative dict, turning this on amounts to a
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TRACK_CUMULATIVE = False
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def time_trap_call(when, function, *args, **kwargs):
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retval = trap_call(when, function, *args, **kwargs)
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logging.timing("WARNING: %s too slow (%.3f secs)", when, end-start)
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total = cumulative[when]
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cumulative[when] = total
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logging.timing("%s cumulative is too slow (%.3f secs)", when, total)