In our GNU version rather puzzling solutions appear like:
void
release() // nothrow
{
if (__gnu_cxx::__exchange_and_add(&_M_use_count, -1) == 1)
{
dispose();
__glibcxx_mutex_lock(_M_mutex);
__glibcxx_mutex_unlock(_M_mutex);
weak_release();
}
}
with empty critical regions, and what else. Document that, possibly
mentioning the current weaknesses both from the point of view of
correctness and performance and mentioning alternate solutions.
--
Summary: Document boost_shared_ptr vs concurrency
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Keywords: documentation
Severity: enhancement
Priority: P2
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pcarlini at suse dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24347
