object.enable() anti-pattern

[Cameron Simpson]

On 10May2013 10:56, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
| Cameron Simpson wrote:
| >You open a file with "0" modes, so
| >that it is _immediately_ not writable. Other attempts to make the
| >lock file thus fail because of the lack of write,
| 
| I don't think that's quite right. You open it with
| O_CREAT+O_EXCL, which atomically fails if the file
| already exists. The read/write modes don't really
| come into it, as far as I know.

Interesting. That is more direct. My understanding that it was
enough to create the file with 0 modes. Maybe either will do. Must
check...

Cheers,
-- 
Cameron Simpson <cs at zip.com.au>

Piracy gets easier every day, but listening to legally purchased music gets harder by the day.
Firehed - http://politics.slashdot.org/comments.pl?sid=179175&cid=14846089