[boost] [multi_index] Missing mutex lock?

Subject: [boost] [multi_index] Missing mutex lock?
From: Anatoly Pinchuk (appinchuk_at_[hidden])
Date: 2009-09-16 19:50:15

Possible traversal and modifications of a safe container iterators list
inside safe_mode::detach_equivalent_iterators function are not protected
with locking like the following one in safe_iterator_base::detach function.

#if defined(BOOST_HAS_THREADS)

    boost::detail::lightweight_mutex::scoped_lock lock(cont->mutex);

#endif

Unless some kind of synchronization is provided by callers of the safe_mode
API, the list above can be traversed/modified and modified concurrently in
BOOST_HAS_THREADS environment.

It would be great if somebody can confirm or deny that there is the access
synchronization problem.

Regards,

Anatoly