Subj : Re: posix and lock-free algorithms
To   : comp.programming.threads
From : Alexander Terekhov
Date : Thu Aug 11 2005 03:06 pm


David Schwartz wrote:
[...]
>     Since you must lock and unlock a mutex every time you pass through this
> code, it's really not DCL. It's just normal locking with extra overhead.
> Hypothetically, there could be reduced contention.

If with "reduced contention" you mean the use of per-thread locks, it's
totally busted just like the DCL classic. DCSI-MBR just can't be done 
using per-thread locks to substitute msync::ssb -> msync::{dd}{cc}hlb
protocol on atomic pointer or flag.

regards,
alexander.

.