[fpc-devel] volatile variables

[Andrew Brunner]

On Tue, Jun 28, 2011 at 6:14 AM, Michael Schnell <mschnell at lumino.de> wrote:

> For variables not defined as volatile, (e.g.) pthread_mutex (and similar
> stuff on Windows) can be used to protect them.
>

A mutex may be able to atomically block access because of its own
memory barrier, but I would suggest that employing such a technique on
multi-core systems will not ensure an accurate value.