showstack.py
31 lines
| 734 B
| text/x-python
|
PythonLexer
/ contrib / showstack.py
Matt Mackall
|
r26123 | # showstack.py - extension to dump a Python stack trace on signal | ||
| # | ||||
| # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) | ||||
Gregory Szorc
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r41689 | r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs) | ||
Boris Feld
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r35674 | """ | ||
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Matt Mackall
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r26123 | |||
Augie Fackler
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r40072 | from __future__ import absolute_import, print_function | ||
Pulkit Goyal
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r28522 | import signal | ||
| import sys | ||||
| import traceback | ||||
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Matt Mackall
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r26123 | |||
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Augie Fackler
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r43346 | |||
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Matt Mackall
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r26123 | def sigshow(*args): | ||
| sys.stderr.write("\n") | ||||
| traceback.print_stack(args[1], limit=10, file=sys.stderr) | ||||
| sys.stderr.write("----\n") | ||||
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Augie Fackler
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r43346 | |||
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Augie Fackler
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r40072 | def sigexit(*args): | ||
| sigshow(*args) | ||||
| print('alarm!') | ||||
| sys.exit(1) | ||||
|
Augie Fackler
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r43346 | |||
|
Matt Mackall
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r26123 | def extsetup(ui): | ||
| signal.signal(signal.SIGQUIT, sigshow) | ||||
|
Augie Fackler
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r40072 | signal.signal(signal.SIGALRM, sigexit) | ||
|
Matt Mackall
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r26123 | try: | ||
| signal.signal(signal.SIGINFO, sigshow) | ||||
| except AttributeError: | ||||
| pass | ||||