Re: File descriptor leak in nested functions

[Chet Ramey]

On 4/15/10 6:58 PM, Charles Duffy wrote:
> The provided reproducer was unnecessarily complicated. The following also
> reproduces the issue:
> 
> function get_fd_count() {
>         local fds
>         cd /proc/$$/fd; fds=( * ) # avoid a StackOverflow source colorizer bug
>         echo "${#fds[@]}"
> }
> 
> function fd_leak_func() {
>         while : ; do
>                 echo ">> Current FDs: $(get_fd_count)"
>                 read retval new_state < <(set +e; new_state=$(echo
> foo); retval=$?; printf "%d %s\n" $retval $new_state)
>         done
> }
> 
> fd_leak_func
> 
> 
> Running the contents of fd_leak_func at top level, by contrast, does not
> reproduce the bug.

Thanks for the report.  This will be fixed in the next release of bash.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/