Mercurial > hg
view contrib/showstack.py @ 49215:8d31ef3017c9 stable
run-tests: prevent race-condition when picking a channel
Before this, multiple jobs could search the list at the same time and pick the
same free channel.
We now project this search/assignment with a simple lock.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 24 May 2022 10:34:42 +0200 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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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) """ from __future__ import absolute_import, print_function 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