Re: cpu_set_t: what's the equivalent for NetBSD?

[christos%astron.com@localhost (Christos Zoulas)]

In article <20090115161528.GP845%danbala.tuwien.ac.at@localhost>,
Thomas Klausner  <wiz%NetBSD.org@localhost> wrote:
>Hi!
>
>Can someone please tell me how the following code should be rewritten
>for NetBSD?
>
>I tried replacing cpu_set_t with cpuset_t, but then the size wasn't
>known for cmask, and CPU_ZERO and CPU_SET don't exist.
>
>The code is from sdlmame (wip/sdlmame).
>
>//============================================================
>//  osd_thread_cpu_affinity
>//============================================================
>
>int osd_thread_cpu_affinity(osd_thread *thread, UINT32 mask)
>{
>#if !defined(NO_THREAD_COOPERATIVE) && !defined(NO_AFFINITY_NP)
>       cpu_set_t       cmask;
>       pthread_t       lthread;
>       int                     bitnum;
>
>       CPU_ZERO(&cmask);
>       for (bitnum=0; bitnum<32; bitnum++)
>               if (mask & (1<<bitnum))
>                       CPU_SET(bitnum, &cmask);
>       
>       if (thread == NULL)
>               lthread = pthread_self();
>       else
>               lthread = thread->thread;
>    
>       if (pthread_setaffinity_np(lthread, sizeof(cmask), &cmask) <0)
>       {
>               /* Not available during link in all targets */
>               fprintf(stderr, "error %d setting cpu affinity to mask %08x", 
> errno, mask);
>               return FALSE;
>       }
>       else
>               return TRUE;
>#else
>       return TRUE;
>#endif
>}
>
>Thank you,
> Thomas


        cpuset_t *cmask = cpuset_create();

        cpuset_zero(cmask);
        for (bitnum=0; bitnum<32; bitnum++)
                if (mask & (1<<bitnum))
                        cpuset_set(bitnum, cmask);
        
        ...

        cpuset_destroy(cmask);

christos