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annotate mercurial/testing/ps_util.py @ 52971:469b9a628b51

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dirstatemap: update, document and type the identity tracking This new form should hopefully be clearer and less error prone.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 18 Feb 2025 22:24:08 +0100
parents d4e30c15626d
children
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1 # This python code can be imported into tests in order to terminate a process
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2 # with signal.SIGKILL on posix, or a roughly equivalent procedure on Windows.
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3
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4 from __future__ import annotations
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5
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6 import os
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7 import signal
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8 import subprocess
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9 import sys
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10 import tempfile
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11
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12 from .. import (
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13 encoding,
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14 pycompat,
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15 )
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16
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17 from ..utils import procutil
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18
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19
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20 def kill_nt(pid: int, exit_code: int):
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21 fd, pidfile = tempfile.mkstemp(
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22 prefix=b"sigkill-", dir=encoding.environ[b"HGTMP"], text=False
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23 )
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24 try:
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25 os.write(fd, b'%d\n' % pid)
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26 finally:
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27 os.close(fd)
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28
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29 env = dict(encoding.environ)
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30 env[b"DAEMON_EXITCODE"] = b"%d" % exit_code
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31
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32 # Simulate the message written to stderr for this process on non-Windows
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33 # platforms, for test consistency.
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34 print("Killed!", file=sys.stderr)
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35
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36 subprocess.run(
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37 [
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38 encoding.environ[b"PYTHON"],
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39 b"%s/killdaemons.py"
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40 % encoding.environ[b'RUNTESTDIR_FORWARD_SLASH'],
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41 pidfile,
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42 ],
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43 env=procutil.tonativeenv(env),
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44 )
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45
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46
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47 def kill(pid: int):
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48 """Kill the process with the given PID with SIGKILL or equivalent."""
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49 if pycompat.iswindows:
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50 exit_code = 128 + 9
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51 kill_nt(pid, exit_code)
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52 else:
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53 os.kill(pid, signal.SIGKILL)