| author | Pierre-Yves David <pierre-yves.david@fb.com> |
| Tue, 26 May 2015 14:14:36 -0700 | |
| changeset 25290 | 8f88f768e24c |
| parent 24755 | cd89f4e6faf2 |
| child 25300 | 678d0bfdd31a |
| permissions | -rw-r--r-- |
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$ cat << EOF > buggylocking.py |
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> """A small extension that acquire locks in the wrong order |
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> """ |
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> |
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> from mercurial import cmdutil |
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> |
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> cmdtable = {} |
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> command = cmdutil.command(cmdtable) |
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> |
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> @command('buggylocking', [], '') |
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> def buggylocking(ui, repo): |
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> tr = repo.transaction('buggy') |
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> lo = repo.lock() |
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> wl = repo.wlock() |
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> wl.release() |
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> lo.release() |
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> |
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> @command('properlocking', [], '') |
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> def properlocking(ui, repo): |
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> """check that reentrance is fine""" |
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> wl = repo.wlock() |
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> lo = repo.lock() |
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> tr = repo.transaction('proper') |
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> tr2 = repo.transaction('proper') |
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> lo2 = repo.lock() |
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> wl2 = repo.wlock() |
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> wl2.release() |
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> lo2.release() |
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> tr2.close() |
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> tr.close() |
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> lo.release() |
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> wl.release() |
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> |
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> @command('nowaitlocking', [], '') |
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> def nowaitlocking(ui, repo): |
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> lo = repo.lock() |
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> wl = repo.wlock(wait=False) |
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> wl.release() |
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> lo.release() |
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> EOF |
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$ cat << EOF >> $HGRCPATH |
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> [extensions] |
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> buggylocking=$TESTTMP/buggylocking.py |
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> [devel] |
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> all-warnings=1 |
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> EOF |
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$ hg init lock-checker |
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$ cd lock-checker |
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$ hg buggylocking |
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devel-warn: transaction with no lock at: $TESTTMP/buggylocking.py:11 (buggylocking) |
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devel-warn: "wlock" acquired after "lock" at: $TESTTMP/buggylocking.py:13 (buggylocking) |
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$ cat << EOF >> $HGRCPATH |
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> [devel] |
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> all=0 |
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> check-locks=1 |
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> EOF |
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$ hg buggylocking |
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devel-warn: transaction with no lock at: $TESTTMP/buggylocking.py:11 (buggylocking) |
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devel-warn: "wlock" acquired after "lock" at: $TESTTMP/buggylocking.py:13 (buggylocking) |
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$ hg buggylocking --traceback |
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devel-warn: transaction with no lock at: |
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*/hg:* in * (glob) |
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*/mercurial/dispatch.py:* in run (glob) |
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*/mercurial/dispatch.py:* in dispatch (glob) |
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*/mercurial/dispatch.py:* in _runcatch (glob) |
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*/mercurial/dispatch.py:* in _dispatch (glob) |
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*/mercurial/dispatch.py:* in runcommand (glob) |
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*/mercurial/dispatch.py:* in _runcommand (glob) |
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*/mercurial/dispatch.py:* in checkargs (glob) |
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*/mercurial/dispatch.py:* in <lambda> (glob) |
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*/mercurial/util.py:* in check (glob) |
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$TESTTMP/buggylocking.py:* in buggylocking (glob) |
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devel-warn: "wlock" acquired after "lock" at: |
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*/hg:* in * (glob) |
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*/mercurial/dispatch.py:* in run (glob) |
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*/mercurial/dispatch.py:* in dispatch (glob) |
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*/mercurial/dispatch.py:* in _runcatch (glob) |
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*/mercurial/dispatch.py:* in _dispatch (glob) |
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*/mercurial/dispatch.py:* in runcommand (glob) |
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*/mercurial/dispatch.py:* in _runcommand (glob) |
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*/mercurial/dispatch.py:* in checkargs (glob) |
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*/mercurial/dispatch.py:* in <lambda> (glob) |
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*/mercurial/util.py:* in check (glob) |
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$TESTTMP/buggylocking.py:* in buggylocking (glob) |
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$ hg properlocking |
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$ hg nowaitlocking |
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$ cd .. |