At 09:59 PM 12/23/01, fooler wrote:
> select() and poll() belongs to state-based notification. files such as
>disk files (eg. /var/log/messages) are *always* ready for I/O, therefore,
>its state is always ready... even EOF or empty file (filesize is zero) of a
>given file returns its state as ready.
aha. damn :). yes, now i see that disk files are always
ready and so select will will always return immediately
even though there's no new data in the log.
thanks for pointing that out. heh, i guess i'll have to
do the tail thing (sleep and check the inode status).
ugly, but probably not very expensive.
>kqueue() is the same function as select() or poll() but
>extends its function, offers flexibility and scalability
>but not portability as of the moment...
hmmm, i thought i'd do the kqueue thing because my log
monitoring thing will run on freebsd but then i just
looked at the kqueue man page and i've decided that
it's against my religion to use anything so
baroque.
i think i'll just go and cut and paste from tail :).
thanks again though. good pointer. merry christmas.
tiger
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