8 Jul
2011
8 Jul
'11
7:17 p.m.
On Fri, Jul 08, 2011 at 09:21:55AM -0400, Paul Davis wrote:
the one wrinkle in this is that in theory a compiler
could so
completely reorder instructions that even the basic assumptions that
make the single reader/single-writer ringbuffer safe would break down.
AFAIK nothing fatal can happen if the variables involved are
declared volatile. A compiler is not allowed to omit, repeat,
or re-order instructions involving them.
Ciao,
--
FA