contrib/showstack.py
author Gregory Szorc <gregory.szorc@gmail.com>
Mon, 17 Sep 2018 15:57:32 -0700
changeset 39677 d27fde3e023e
parent 35656 c9eb92fb87b7
child 40036 acf5dbe39478
permissions -rw-r--r--
transaction: make file a private attribute This holds a file handle for the journal file. This file handle should not be touched outside the journal class and doesn't belong on the public interface. Differential Revision: https://phab.mercurial-scm.org/D4625
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# showstack.py - extension to dump a Python stack trace on signal
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#
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# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
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"""dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
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"""
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from __future__ import absolute_import
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import signal
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import sys
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import traceback
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def sigshow(*args):
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    sys.stderr.write("\n")
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    traceback.print_stack(args[1], limit=10, file=sys.stderr)
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    sys.stderr.write("----\n")
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def extsetup(ui):
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    signal.signal(signal.SIGQUIT, sigshow)
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    try:
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        signal.signal(signal.SIGINFO, sigshow)
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    except AttributeError:
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        pass