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    SubjectRe: NR_OPEN vs OPEN_MAX vs RLIMIT_NOFILE, and a glibc bug?
    On Sat, 27 Mar 1999 11:44:41 GMT, Olaf Titz <> wrote:

    >This implies that the common usage of getdtablesize() to find out the
    >highest numbered fd is wrong to begin with, since a process could open
    >(or inherit!) a fd and subsequently lower RLIMIT_NOFILE. It also
    >suggests it is not possible to find out the highest numbered fd at
    >all. (And using the _soft_ limit makes it sounds yet more questionable

    AIX has a nice fcntl to close all file descriptors above and including a
    the given fd value, e.g fcntl(3, F_CLOSEM, 0) would close fd 3 and up.

    Jens-Uwe Mager <pgp-mailto:62CFDB25>

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