After looking at the differences between kqueue(2) and libevent, I decided it would be best to write a very thin wrapper library to emulate kqueue on non-BSD platforms. I've gotten pretty far with the effort to port kqueue to Linux, and wanted to let everyone know that this is a work-in-progress. The working title of this effort is "libkqueue". If you are curious, you can download the libkqueue source code from here: http://mark.heily.com/src/ Currently, I have implemented the EVFILT_READ, EVFILT_WRITE, and EVFILT_SIGNAL filter types. I plan to implement EVFILT_VNODE using inotify, and EVFILT_TIMER using timerfds. I might have to implement EVFILT_PROC using a helper thread. After the Linux port is complete, I'll consider other Unixes such as OpenSolaris. I'm not a Windows developer, so if anyone wants to help with a Windows port, that would be great. It is my hope that the quality and completeness of libkqueue will soon be sufficient enough to be used with libdispatch. Regards, - Mark