Mercurial > hg
annotate contrib/showstack.py @ 26356:927fa07a2ba4
lock: introduce state to keep track of inheritance
This is part of a series that will allow locks to be inherited by subprocesses
in limited circumstances. In upcoming patches we will refer to this state.
author | Siddharth Agarwal <sid0@fb.com> |
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date | Thu, 24 Sep 2015 15:57:11 -0700 |
parents | bdac264e5ed4 |
children | f2fe7b199bb4 |
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contrib: add showstack extension
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1 # showstack.py - extension to dump a Python stack trace on signal |
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2 # |
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3 # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) |
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4 |
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5 import sys, signal, traceback |
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6 |
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7 def sigshow(*args): |
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8 sys.stderr.write("\n") |
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9 traceback.print_stack(args[1], limit=10, file=sys.stderr) |
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10 sys.stderr.write("----\n") |
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11 |
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12 def extsetup(ui): |
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13 signal.signal(signal.SIGQUIT, sigshow) |
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14 try: |
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15 signal.signal(signal.SIGINFO, sigshow) |
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16 except AttributeError: |
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17 pass |