Date: Thu, 22 Jul 2004 17:59:40 -0700 (PDT) From: pradeep reddy punnam <prady_p@yahoo.com> To: freebsd-hackers@freebsd.org Subject: regarding timeout/untimeout kernel functions Message-ID: <20040723005940.18029.qmail@web53410.mail.yahoo.com>
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HI all,
i am working on a project , where i came across a situation where i need to execute a function when a timer expires ,exactly similar to functionality of the timeout() kernel function but i need this in userland(application), and the execution of the function is time sensitive, it should be run immediately when timer expires.
i can't be using poll or select for timer becuse those will block the process untill the timer expires.for me the proess should not be blocked.
and i also thought of taking the service of the timeout function by writing a system call and using signaling mechanism but i think this will become expensive when the number of timers to be checked increeses.
i read the kern_timeout.c code that is very good implentation.with very less expensive.
but i think user unable to enjoy that service.
i will thankful if somebody can tell if there is any such a service or way provided by os( that i overlooked).
thanks,
-Pradeep
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