log: use qi::Atomic instead of qi::atomic

Change-Id: I8a7a6809443a775a9e53c62840e207f68dfedff0
Reviewed-on: http://gerrit.aldebaran.lan/22896
Reviewed-by: rchevalier <rchevalier@aldebaran-robotics.com>
Tested-by: gerrit
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>
cputime: macos implementation.

Change-Id: I753782be3bc20e9d4abba9044a55386e706fef4c
Reviewed-on: http://gerrit.aldebaran.lan/22898
Tested-by: gerrit
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>
Reviewed-by: mnottale <mnottale@aldebaran-robotics.com>
Tested-by: mnottale <mnottale@aldebaran-robotics.com>
add memoryUsage function

It gives the memory usage (in kB) of a process, given its PID

Change-Id: Ice12f5289ccc8dc6c9c514aeeda7e7aae90c1fcd
Reviewed-on: http://gerrit.aldebaran.lan/22736
Tested-by: gerrit
Reviewed-by: rchevalier <rchevalier@aldebaran-robotics.com>
use qiLogCategory

Change-Id: I38ce7bc4d509685308bf719c1fa4962e91d37ddb
Reviewed-on: http://gerrit.aldebaran.lan/22543
Reviewed-by: rchevalier <rchevalier@aldebaran-robotics.com>
Tested-by: gerrit
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>
Add env var in doc

Change-Id: Ia16a02b15153bf7b61457acde07a68bc25b0a486
Reviewed-on: http://gerrit.aldebaran.lan/23127
Reviewed-by: ncornu <ncornu@aldebaran-robotics.com>
Tested-by: gerrit
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>