Fwd: local equivalent for pthread_once() in glibc?

Florian Weimer fweimer@redhat.com
Sun Jun 25 15:47:00 GMT 2017


On 05/17/2017 04:51 PM, Adhemerval Zanella wrote:
> Right, but this is not seem the case for tunable where malloc_consolidate is
> called from ptmalloc_init (at least for main_arena).  In any case, I still
> think that for adequate __malloc_initialized access using C11 atomic since
> its access is still done concurrently (that why I asked if using __libc_once
> would be simpler).

I don't understand.  The concurrent access solely consists of reads.  We
do not use atomics in that case.

Florian



More information about the Libc-alpha mailing list