Mercurial > hg
view tests/fakemergerecord.py @ 31471:95be8b7181d3
osutil: fix potential wrong fd close
According to POSIX closedir [1]:
If a file descriptor is used to implement type DIR, that file descriptor
shall be closed.
According to POSIX fdopendir [2]:
Upon calling closedir() the file descriptor shall be closed.
So we should avoid "close(dfd)" after "closedir(dir)". With threads, there
could be a race where an innocent fd gets closed. But Python GIL seems to
help hiding the issue well.
[1]: http://pubs.opengroup.org/onlinepubs/009695399/functions/closedir.html
[2]: http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdopendir.html
author | Jun Wu <quark@fb.com> |
---|---|
date | Wed, 15 Mar 2017 20:43:12 -0700 |
parents | b303b3817d0e |
children | 46ba2cdda476 |
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# Extension to write out fake unsupported records into the merge state # # from __future__ import absolute_import from mercurial import ( cmdutil, merge, ) cmdtable = {} command = cmdutil.command(cmdtable) @command('fakemergerecord', [('X', 'mandatory', None, 'add a fake mandatory record'), ('x', 'advisory', None, 'add a fake advisory record')], '') def fakemergerecord(ui, repo, *pats, **opts): with repo.wlock(): ms = merge.mergestate.read(repo) records = ms._makerecords() if opts.get('mandatory'): records.append(('X', 'mandatory record')) if opts.get('advisory'): records.append(('x', 'advisory record')) ms._writerecords(records)