lib/43326: Some POSIX clock IDs are not defined

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

>Number:         43326
>Category:       lib
>Synopsis:       Some POSIX clock IDs are not defined
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed May 19 07:25:00 +0000 2010
>Originator:     Jukka Ruohonen
>Release:        NetBSD 5.0_STABLE - 5.99.27
>Organization:
-
>Environment:

>Description:

Some optional POSIX clock IDs are not defined.

Namely:

CLOCK_PROCESS_CPUTIME_ID <-> _POSIX_CPUTIME         <-> _SC_CPUTIME
CLOCK_THREAD_CPUTIME_ID  <-> _POSIX_THREAD_CPUTIME  <-> _SC_THREAD_CPUTIME

>How-To-Repeat:

Code inspection.

>Fix:

A proposition:
        
        (a) Add the definitions.

        (b) Go through the functions using 'clockid_t' and return with
            ENOTSUP for these. At least in:

                * clock_getres(2)
                * clock_gettime(2)
                * clock_settime(2)
                * timer_create(2)

Alternatively, solve this at the level of documentation.