This simplifies the protocol between the platform-independent
and platform-specific parts. The platform-specific parts
were supposed to re-determine the value of process->show
on each iteration, and the Darwin subsystem wasn't doing that.
Instead of adding the code to the Darwin part, I lifted the
burden of the OS-specific of resetting process->show: now
they can choose to hide a process if they want to (e.g.
detecting kernel threads) but are not required to
(e.g. on Darwin where we're not listing threads separately (yet?)).
Fixes tree view collapsing/expanding on OSX. Closes#416.
Got a report in #397 that htop runs in NetBSD
masquerading as Linux and using a compatibility /proc
(like we used to in FreeBSD) and that it builds fine
apart from this syscall.
htop currently expects m_size and m_resident in pages (Process.c).
According to the proc_info.h header, the values returned by libproc
are in bytes:
http://www.opensource.apple.com/source/xnu/xnu-1456.1.26/bsd/sys/proc_info.h
Eventually we should change the htop crossplatform API to expect memory
in bytes, but this is the smaller change that should fix it.
Closes#385.
(Cherry-picked from d56bcd8e0d8d6a177fc2e40db32fc73ea4588684, the
experimental graph coloring branch)
The variable 'dot' in GraphMeterMode_draw now means "maximum number of
dots per value (column) in graph". The old meaning was "amount of value
that is to be represented by a dot" and was always a fraction. Due to
a limitation in floating point computing, if GRAPH_HEIGHT were not a
power of 2, then rounding errors will occur on numbers like (1.0/3).
(Currently GRAPH_HEIGHT is 4 and so no precision loss.) 'dot' was used
as a divisor, and it's "division by a reciprocal". We change that to
simple multiplication.
