src/share/examples/kld/dyn_sysctl/dyn_sysctl.c, branch release/5.3.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-11-04T19:12:42+00:00

'RELENG_5_3_0_RELEASE'.

This commit was manufactured to restore the state of the 5.3-RELEASE image.

MFC: According to module(9), when command is unrecognized, the module should

2004-09-28T18:27:28+00:00

     return EOPNOTSUPP.

Approved by:	re (scottl)

Unbreak by syncing with changes in macros.

2001-02-10T22:36:05+00:00

These patches implement dynamic sysctls. It's possible now to add

2000-07-15T10:26:04+00:00

and remove sysctl oids at will during runtime - they don't rely on
linker sets. Also, the node oids can be referenced by more than
one kernel user, which means that it's possible to create partially
overlapping trees.

Add sysctl contexts to help programmers manage multiple dynamic
oids in convenient way.

Please see the manpages for detailed discussion, and example module
for typical use.

This work is based on ideas and code snippets coming from many
people, among them:  Arun Sharma, Jonathan Lemon, Doug Rabson,
Brian Feldman, Kelly Yancey, Poul-Henning Kamp and others. I'd like
to specially thank Brian Feldman for detailed review and style
fixes.

PR:		kern/16928
Reviewed by:	dfr, green, phk