[cpp-threads] atomic operations package

[Peter Dimov]

Alexander Terekhov wrote:
> On 10/9/05, Peter Dimov <pdimov at mmltd.net> wrote:

>> Consider a mostly lock-free data structure where most operations
>> (insert, delete, find) can proceed in parallel, but some (resize)
>> need exclusive lock. It's natural to use a rwlock for that; a rwlock
>> is not about reads or writes, it's about shared and exclusive access.
>
> ...I don't get it.

You may be right. It seems that even for this case the read/write mutex does 
not need to constrain writes on rdlock. I can post a snapshot of my 
concurrent_hash_map implementation if you're interested.