HUD service returning more than 5 entries

Ryan pls check

The hud-service will return as many results as you ask for. It's a parameter to the StartQuery call:

In libunitycore I see:

namespace unity
{
namespace hud
{

namespace
{
nux::logging::Logger logger("unity.hud.hud");
const int request_number_of_results = 6;
}

Seems that 6 is really the desired amount.

Is this a misunderstanding between unity-2d and unity-3d (libunitycore)?

As for the large number of results... I'm not sure how that could be happening. My guess is that you are not handling the change signal properly and adding the new results reported by the change signal to the list you already have (instead of replacing it). My suspicion is confirmed by the fact that many of the same items are appearing in the list you attached.

The old hud-service didn't ever emit change signals so you would not have noticed this bug before recently...

I just upgraded to 12.04 yesterday, received unity 5.8.0-0ubuntu2, and I get this kind of thing too. I have yet to see a properly-behaved HUD list.

http://bigasterisk.com/post/hud1.jpg

Top shows these two runaways:
  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 2458 drewp 20 0 1489m 932m 12m R 102 15.7 4:19.03 unity-panel-ser
 2531 drewp 20 0 1117m 458m 3536 R 100 7.7 4:08.02 hud-service

unity-panel-service is slowly filling ram. After I grabbed my screenshot, firefox is also spinning a lot and shaking its icon in the bar for no reason every minute or two.

I'll wait for the 5.10.0 release which I hope is coming out soon :)