These classes were added and then removed from 1.33.1 due to problems with deadlocks. no solution exists in the boost library at this time. See the December 5th release info on the boost.org main page. On 4/20/06, Scott wrote:

I need to design a multiple reader, one writer type thread locking on a STL container. I've been using boost::threads for all my threading and locking so far, but I haven't found a way to do what I want.

Then I saw this in the release notes:

*************** Read/write mutex functionality added

New classes, boost::read_write_mutex, boost::try_read_write_mutex, and boost::timed_read_write_mutex were added.

Note Since the read/write mutex and related classes are new, both interface and implementation are liable to change in future releases of Boost.Threads. The lock concepts and lock promotion in particular are still under discussion and very likely to change. ***************

But I can't find any documentation on it. Can someone help me out here?

Thanks, Scott

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