Mercurial > hg
view contrib/showstack.py @ 50995:80c243eab724
openvms: duck-punch a bugfix into `environb` object
The official Python3 build for OpenVMS has some crippling bug that we need to
patch dynamically
OpenVMS patches
author | Jean-Francois Pieronne <jf.pieronne@laposte.net> |
---|---|
date | Thu, 03 Aug 2023 02:28:52 +0200 |
parents | 6000f5b25c9b |
children |
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# showstack.py - extension to dump a Python stack trace on signal # # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs) """ import signal import sys import traceback def sigshow(*args): sys.stderr.write("\n") traceback.print_stack(args[1], limit=10, file=sys.stderr) sys.stderr.write("----\n") def sigexit(*args): sigshow(*args) print('alarm!') sys.exit(1) def extsetup(ui): signal.signal(signal.SIGQUIT, sigshow) signal.signal(signal.SIGALRM, sigexit) try: signal.signal(signal.SIGINFO, sigshow) except AttributeError: pass