Messages in this thread | | | Subject | Re: hrtimer.h | From | Steven Rostedt <> | Date | Wed, 13 Dec 2006 20:09:24 -0500 |
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On Thu, 2006-11-30 at 01:42 +0100, Ariel Chÿffffe1vez Lorenzo wrote: > Hi, > > Since the kernel 2.6.18 has incorporated the high > resolution timer itself, I'm trying to test it, but on > my GNU/Debian I can't figure out how to include > hrtimer.h, that is on /usr/src/linux/include/, the > headers. > > I use the following command to try to compile it. > > gcc -D__KERNEL__ -I /usr/src/linux/include ex.c > > > ex.c is just the inclusion of hrtimer.h > > #include <linux/hrtimer.h> > int main() > { > return 0; > } >
As stated, the kernel headers have nothing to do with user space code.
But I'll educate you a little more.
First, high resolution timers are not in 2.6.18. The hrtimers are, but the actual meat that makes them high resolution wont be in until (hopefully) 2.6.20 (or perhaps a little later).
To use the high resolution timers (when they are in), you don't need to do anything special. nanosleep, and all the posix timers will get them automatically.
-- Steve
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