[Olsr-users] 0.5.6 Routes disappear after 4 mins of uptime, then all OK - suspect clock sync

[Juliusz Chroboczek]

> For timeouts in select/poll/sleep/timers in general one wants
> a steady clock without jumps. And times(2) is the only portable
> sys-call I know of.  BTW do we have requirements on precision?

In Babel, I use clock_gettime(CLOCK_MONOTONIC) if it's available
(Linux 2.6, FreeBSD 5 and later, OS X 10.4 and later).  If it isn't,
I fall back to gettimeofday, with some code to detect clock stepping
and recover gracefully.

                                        Juliusz