[boost] [lockfree] how many items are queued?

lockfree.fifo provides the info if the queue is empty or not. is it possible to provide a function std::size_t size() const - returning how many items are queued at a specific timepoint? regards, Oliver -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser