linuxdcpp-team team mailing list archive

[Gennady Proskurin <617591@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:~gpr/linuxdcpp/sync

-- 
Pointer.h/intrusive_ptr_base class is too heavy-weight
https://bugs.launchpad.net/bugs/617591
You received this bug notification because you are a member of LinuxDC++
Team, which is subscribed to LinuxDC++.

Status in DC++: New
Status in Linux DC++: Confirmed

Bug description:
"Pointer.h/intrusive_ptr_base" class is too heavy-weight (at least on unix), it uses pthread mutex for every increment/decrement. And since this mutex is static (Thread::mtx), it leads to bad concurrency even for independent intrusive pointers.
Patch attached, which uses portable atomic reference counters from boost.
It uses boost::detail::atomic_count from shared_ptr, so it may theoretically change in future (since it is in detail), but I doubt it will.