Rework CPU counting

Currently htop does not support offline CPUs and hot-swapping, e.g. via
    echo 0 > /sys/devices/system/cpu/cpu2/online

Split the current single cpuCount variable into activeCPUs and
existingCPUs.

Supersedes: #650
Related: #580

1 files changed, 1 insertions, 1 deletions

diff --git a/Action.c b/Action.c
index 21183e0d..86468635 100644
--- a/Action.c
+++ b/Action.c
@@ -302,7 +302,7 @@ static Htop_Reaction actionSetAffinity(State* st) {
    if (Settings_isReadonly())
       return HTOP_OK;
 
-   if (st->pl->cpuCount == 1)
+   if (st->pl->activeCPUs == 1)
       return HTOP_OK;
 
 #if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))