[RFC] sema_wait_sig

[Alfred Perlstein]

On 11/24/12 5:56 PM, Warner Losh wrote:
> On Nov 24, 2012, at 6:47 PM, Alfred Perlstein wrote:
>
>>
>> 1) compat layer
>> /usr/src.local/sys/ofed/drivers/infiniband/core #
>> cddl/contrib/opensolaris
>>
>> 2)
>> if a user expects semaphores and we tell them to "rethink" things, then we're not providing the same facilities as every other non-BSD OS.
>>
>> I guess that makes us "cool", but really it just seems out of touch.
>>
>> The implementation is 176 lines of code + some headers.
>>
>> The sad part to me is that the original user asked "hey I need sema+signal" but we don't know the facility they really need, count of 1?  count of 10? instead of just giving them a textbook CS semaphore we tell them to "build your own using our primitives".
> You don't need stdio, you can build it from the syscall primitives...

Dude, don't make me replace string.h/strncpy/strlcpy with sbuf_(9), 
cause I will!

-Alfred