(Sometimes after a couple of hours of research, the result is a dead-end or needs further digesting. Still, such a result might itself still be worth remembering. This is a Quick&Dirty report of one of those cases.) GCD is an implementation of thread pools / queueing (+ event management (sockets, files), etc) by Apple for Mac OS X / iOS. It was open-sourced, and FreeBSD got an implementation. They are practically an abstraction and simplification over pthreads (+ events, etc), and the GCD implementation includes some kernel and compiler changes (workqueues and blocks, respectively). Implementation details at http://newosxbook.com/articles/GCD.html . It's well performing and seemingly can help simplifying a lot. What if one wanted to use GCD in Android? Is there anything compatible enough and that could be used at the C level?
Running away from the comfort zone