Re: [Qemu-devel] [PATCH 16/19] Rename get_tls to tls_var

[Paolo Bonzini]

On 12/06/2011 12:43 PM, Andreas Färber wrote:
> Am 06.12.2011 12:01, schrieb Stefan Hajnoczi:
> > From: Jan Kiszka<address@hidden>
> >
> > get_tls() can serve as a lvalue as well, so 'get' might be confusing.
>
> Note that this does not work for POSIX pthread_getspecific(), which
> we'll need to support at some point in time, so I don't think this is a
> terribly good idea.

I already posted the code for pthread_getspecific(), but it didn't work 
on OpenBSD.

The idea was to reserve a single pthread key and allocate a whole block 
of memory.  Then get_tls can use pthread_getspecific() and add an offset 
within the block of memory.  The reason is that with many allocated keys 
pthread_getspecific() becomes slower.

Paolo