Messages in this thread | | | From | David Laight <> | Subject | RE: RFC: better timer interface | Date | Tue, 23 May 2017 12:51:30 +0000 |
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From: Thomas Gleixner > Sent: 23 May 2017 12:59 > On Tue, 23 May 2017, David Laight wrote: > > > From: Thomas Gleixner > > > Sent: 21 May 2017 19:15 > > ... > > > > timer_start(timer, ms, abs) > > > > > > I'm not even sure, whether we need absolute timer wheel timers at > > > all, because most use cases are relative to now. > > > > Posix requires absolute timers for some userspace calls > > (annoying because the code often wants relative). > > Posix is completely irrelevant here. These timers are purely kernel > internal.
Somehow pthread_cond_timedwait() has to be implemented. Doing so without kernel timers that use absolute 'wall clock' time is tricky.
David
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