Greetings... a patch I would like your comments on...

[Randall Stewart]

Lets try that again with the right email subscribed to hackers ;-)

R
On Jan 22, 2010, at 6:43 AM, Randall Stewart wrote:

> Ivan:
>
> Ok, over we go ;-)
>
> I do want to add this into Head here eventually so if you happen
> to have an interest in umtx or kqueue you may want to take a close
> look at this patch ;-)
>
> R
> On Jan 22, 2010, at 5:27 AM, Ivan Voras wrote:
>
>> 2010/1/22 Randall Stewart <rrs at lakerest.net>:
>>> All:
>>>
>>> I have put together a patch against head that I would like
>>> your opinion of.
>>>
>>> So first what does it do?
>>>
>>> Well one thing I thought lacking in the kernel was the ability
>>> to send a cond event (umtx_cond) to a thread that was waiting
>>> on a kqueue...
>>>
>>> So the rough idea is I have N fd's and other things I am watching
>>> but I would also like a local thread (maybe remote if the  
>>> umtx_cond_t is
>>> in shared memory) to be able to wake me up as well.
>>
>> This is a good and useful addition! I think Windows has implemented a
>> generalization of this (called "wait objects" or something like  
>> that),
>> which effectively allows a select()- (or in this case kqueue())-like
>> syscall to wait on both file descriptors and condvars (as well as
>> probably other MS-style objects). It's useful for multiplexing events
>> for dissimilar sources.
>>
>> But you will probably soon receive a message to take this discussion
>> to hackers at freebsd.org, and I agree :)
>>
>
> ------------------------------
> Randall Stewart
> 803-317-4952 (cell)
> 803-345-0391(direct)
>

------------------------------
Randall Stewart
803-317-4952 (cell)
803-345-0391(direct)