April 2012
Intermediate to advanced
352 pages
8h
English
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Implementing sysctls, Part 1
Example 3-3 is a complete KLD (based on code written by Andrzej Bialecki) that creates multiple sysctls.
Example 3-3. pointless.c
#include <sys/param.h> #include <sys/module.h> #include <sys/kernel.h> #include <sys/systm.h> #include <sys/sysctl.h> static long a = 100; static int b = 200; static char *c = "Are you suggesting coconuts migrate?"; static struct sysctl_ctx_list clist; static struct sysctl_oid *poid; static intsysctl_pointless_procedure(SYSCTL_HANDLER_ARGS) { char *buf = "Not at all. They could be carried."; return (sysctl_handle_string(oidp, buf, strlen(buf), req)); } static int pointless_modevent(module_t ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.