sched_getcpu: add man page

[emaste]

section 3

[emaste]

(and sched_getcpu.3 to be added in lib/libsys/Makefile.sys)

[kib]

lib/libsys/sched_getcpu.3

23 ↗

(On Diff #146389)

The result is invalid at a moment it is returned, unless the thread is pinned to specific cpu.

26 ↗

(On Diff #146389)

Perhaps note that the index is same as used by cpuset/affinity calls, like cpuset, cpuset_getaffinity, pthread_getaffinity_np.

28 ↗

(On Diff #146389)

Then this section becomes useful.

[emaste]

suggestions from @kib

[kib]

If you move the page to section 3, it should be in lib/libc/gen.

[emaste]

If you move the page to section 3, it should be in lib/libc/gen.

I wondered about that, but the implementation is in libsys and there are a small number of section 3 pages in libsys, like getpagesize.3, so should be the same for sched_getcpu, no?

[kib]

In D47556#1084670, @emaste wrote:

If you move the page to section 3, it should be in lib/libc/gen.

I wondered about that, but the implementation is in libsys and there are a small number of section 3 pages in libsys, like getpagesize.3, so should be the same for sched_getcpu, no?

Ok