On 2005-05-21 18:49, shiner chen wrote:
In order to implement a dispacthing policy I want to get the status of
cpu. I have read the code of top command and i find it get the status
of cpu by the function :
int sysctlbyname(const char *, void *, size_t *, void *, size_t);
I search the code of kernel ,then I consider that i can get the status
of cpu through the funciton:
int kernel_sysctlbyname(struct thread *td, char *name, void *old,
size_t *oldlenp, void *new, size_t newlen, size_t *retval);
I try to get the status of cpu by that function ,but it does not work!
You're looking at the wrong place. There is a manpage for the
sysctlbyname() function, which you obviously missed.
who can tell me the problem?
Nobody until you show us the source, I guess :-)
How do i get the status of cpu?
How do i use it if the funcion is right? what's the mean of the
function's arguments ?
Start by reading the manpage of sysctlbyname(). Then, if you still have
problems, you can post the source online somewhere and point us people
at the URL.
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