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46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
# Copyright (C) 2012-2014 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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"""
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Memory utilities.
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"""
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import gc
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import pprint
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from . import strformat, log, LOG_CHECK
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from .fileutil import get_temp_file
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# Message to display when meliae package is not installed
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MemoryDebugMsg = strformat.format_feature_warning(
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module='meliae', feature='memory debugging', url='https://launchpad.net/meliae'
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)
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def write_memory_dump():
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"""Dump memory to a temporary filename with the meliae package.
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@return: JSON filename where memory dump has been written to
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@rtype: string
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"""
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# first do a full garbage collection run
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gc.collect()
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if gc.garbage:
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log.warn(LOG_CHECK, "Unreachabe objects: %s", pprint.pformat(gc.garbage))
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from meliae import scanner
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fo, filename = get_temp_file(mode='wb', suffix='.json', prefix='lcdump_')
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try:
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scanner.dump_all_objects(fo)
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finally:
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fo.close()
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return filename
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