await & asleep
M. Warner Losh
imp at bsdimp.com
Thu Jul 28 04:11:16 GMT 2005
In message: <42E7BD9F.6060401 at samsco.org>
Scott Long <scottl at samsco.org> writes:
: > and the priority argument of tsleep() doesn't have any meaning
: > any longer, right?
: I thought it did, but John can give the definitive answer.
Priority is still useful. It is the same priority that msleep uses.
tsleep is completely equivalent to msleep with a null mtx parameter.
The priority field is indeed used:
* Adjust this thread's priority.
sched_prio(td, priority & PRIMASK);
msleep is a different primitive that cv_wait and friends. cv_wait
enforces good mutex practices and generally should be used...
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