Subject: when to sysctl and when not to?
To: None <email@example.com>
From: Simon Burge <firstname.lastname@example.org>
Date: 06/16/2000 13:25:08
For the sysctl work I've been doing recently, I've used the following
if (memf == NULL || nlistf == NULL)
do sysctl stuff
do kvm stuff
Should that first check be just
if (memf == NULL)
? If you want to use the default memory file, then the namelist
obviously doesn't matter at all to sysctl.
There's scope to go even further and use
if (memf == NULL || strcmp(memf, _PATH_MEM) == 0)
but a lot of my testing for not breaking the kvm access is to use
./foo -M /dev/mem
so from my selfish POV I'd not like to do this, even though it may be
desirable and perhaps should be done. I guess I could just make a
symlink to /dev/mem and test against that...