[haiku-commits] Re: r34615 - in haiku/trunk: headers/private/kernel src/system/kernel src/system/kernel/arch/x86 src/system/kernel/scheduler
- From: Ingo Weinhold <ingo_weinhold@xxxxxx>
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Thu, 10 Dec 2009 12:41:05 +0100
On 2009-12-10 at 13:28:12 [+0100], Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>
wrote:
> ingo_weinhold@xxxxxx wrote:
> > + if (ret == B_INVOKE_SCHEDULER || !thread->cpu-
> > >invoke_scheduler_if_idle
> > + || thread->priority == B_IDLE_PRIORITY) {
> > + scheduler_reschedule();
> > + }
>
> What does this try to express?
> I don't think I understand this correctly, at least, if it is correct
> :-)
Mmh, it just means, what you can read there, i.e.: Reschedule if,
* ret == B_INVOKE_SCHEDULER,
* the invoke_scheduler_if_idle flag is clear, or
* an idle thread is running.
It might become move obvious, if you have a look at the outer "if"
condition, which is "ret == B_INVOKE_SCHEDULER ||
thread->cpu->invoke_scheduler". So basically the inner "if" only checks the
"if idle" condition.
CU, Ingo
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