Mercurial > hg
view tests/test-revset-dirstate-parents.t @ 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 | 7d87f672d069 |
children | 7bbc4e113e5f |
line wrap: on
line source
$ HGENCODING=utf-8 $ export HGENCODING $ try() { > hg debugrevspec --debug $@ > } $ log() { > hg log --template '{rev}\n' -r "$1" > } $ hg init repo $ cd repo $ try 'p1()' (func ('symbol', 'p1') None) * set: <baseset []> $ try 'p2()' (func ('symbol', 'p2') None) * set: <baseset []> $ try 'parents()' (func ('symbol', 'parents') None) * set: <baseset+ []> null revision $ log 'p1()' $ log 'p2()' $ log 'parents()' working dir with a single parent $ echo a > a $ hg ci -Aqm0 $ log 'p1()' 0 $ log 'tag() and p1()' $ log 'p2()' $ log 'parents()' 0 $ log 'tag() and parents()' merge in progress $ echo b > b $ hg ci -Aqm1 $ hg up -q 0 $ echo c > c $ hg ci -Aqm2 $ hg merge -q $ log 'p1()' 2 $ log 'p2()' 1 $ log 'tag() and p2()' $ log 'parents()' 1 2 $ cd ..