On Wed, Dec 26, 2001 at 07:50:11PM -0500, Pavel Roskin wrote:
> I got a report that GNU Midnight Commander fails to erase some directories
> on tmpfs from the first attempt. However, it succeeds the next time.
[...]
> while ((d = readdir(dir)) != NULL) {
> printf("%s\n", d->d_name);
> rmdir(d->d_name);
> }
[...]
> I'm sorry, I cannot elaborate more, but the issue seems to be very
> serious.
If Midnight Commander does similar to the above it's pretty silly...
In Perl I normally do something like this in a loop (with a max-loops
limiter):
opendir
@dirs = readdir(FOO);
closedir
last unless @dirs;
&remove_the_dirs(@dirs);
Clearly that's slack since you could have a million files in a
directory, but you see the point. readdir(2) and getdents(2)
are inherently racy. If your code does not assume such and take
appropriate action, it's broken.
Jeff
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This archive was generated by hypermail 2b29 : Mon Dec 31 2001 - 21:00:13 EST