Re: regarding synchronization code

[Sri Ram Vemulpali <sri.ram.gmu06@gmail.com>]

I am just saying I know inline keyword. But what is always_inline.

Thanks for replies and explanations. I got it now.

Regards,
Sri.

On Sat, Sep 25, 2010 at 4:48 AM, Michael Blizek
<michi1@michaelblizek.twilightparadox.com> wrote:
> Hi!
>
> On 18:56 Fri 24 Sep     , Sri Ram Vemulpali wrote:
>> Hi all,
>>
>>   I am encountering alot macros in the code. I did not understand what
>> those macro means.
>>
>>   Can anyone explain them and the use of them putting them like that.
>>
>>    "unlikely"
>
> likely() and unlikely() are wrappers around gcc extensions to give hints about
> whether a given branch will likely be taken or not. When done correctly, this
> can improve performance.
>
>>    "always_inline"  -- defined at the signature of the function.
>
> This can be used because "inline" is not always inlined. There should be a gcc
> option which causes all inline code to be not inlined.
>
>>    "inline" -- I know inline keyword in compiler is used to place the
>> code in to the caller function at the time of compiler, but why
>> declared as macro
>
> Where do you see inline declared as a macro?
>
>        -Michi
> --
> programing a layer 3+4 network protocol for mesh networks
> see http://michaelblizek.twilightparadox.com
>
>



-- 
Regards,
Sri.
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html