Closures? HA! If you are working in C and think you might like closures and a different concurrency model than pthreads, then you should look into clang+libBlo

Closures? HA! If you are working in C and think you might like closures and a different concurrency model than pthreads, then you should look into clang+libBlocksRuntime+libdispatch. That gives you the blocks(closures) known to OS X and iOS programmers and a pretty spiffy queue based concurrency model. I'm never going back to pthreads. You can't make me. Slightly sadly, I haven't seen a distribution shipping a modern version of libdispatch. There is one in github, but it may or may not have a problem in its read/write support. I use the old version that comes in my distribution.