[Toybox] Fwd: [PATCH] Show thread names with "ps -T" on Android.

[Rob Landley]

On 09/29/2016 11:12 AM, enh wrote:
> you'd have been pleased by some of the stuff i've seen on internal
> bugs recently --- all kinds of "fancy" command-line usage with no-one
> [except me!] giving a second thought to "do we actually support
> that?".
> 
> did you resolve your spam filter issues?

I hope so. :(

> not sure if you didn't see
> yesterday's ps patch, or if there's a better way to do it?

I got behind on my email during the 3 day drive and am still catching up.

> (i noticed
> as well that the GNU ps docs claim that -123 should work the same as
> 123,

Um, but the comment on the new code hunk says it's undocumented?

Where is this?

> but that doesn't seem to be true in practice,

landley at driftwood:~/toybox/toy3$ ps -24000
  PID TTY      STAT   TIME COMMAND
24000 pts/100  Ss     0:00 bash
landley at driftwood:~/toybox/toy3$ ps 24000
  PID TTY      STAT   TIME COMMAND
24000 pts/100  Ss     0:00 bash

Seems to work?

> and i've never
> heard of anyone actually doing that, so i ignored it. i should
> probably have said so in the checkin comment.)

Wouldn't be the first time I implemented what the docs said should work
even when the gnu implementation didn't. :)

I've never heard of anyone using ps -123 either, but it wouldn't be hard
to implement. Query: -p options are comma separated lists, so in theory
you could go ps 1,2 but when I try it with the gnu version:

landley at driftwood:~/toybox/toy3$ ps
  PID TTY          TIME CMD
24975 pts/101  00:00:00 bash
25074 pts/101  00:00:00 ps
landley at driftwood:~/toybox/toy3$ ps 24975,25074
error: process ID list syntax error

Sigh. My question is, if I'm removing - from "ps -123" should I also
remove it from "ps -p 1,-2"? It looks like no:

$ ps -p 32226,-32589
error: process ID out of range

Rob

P.S. Can I cc: this back to the list? :)