libuv is a multi-platform support library with a focus on asynchronous I/O.
+ Full-featured event loop backed by epoll, kqueue, IOCP, event ports.
+ Asynchronous TCP and UDP sockets
+ Asynchronous DNS resolution
+ Asynchronous file and file system operations
+ File system events
+ ANSI escape code controlled TTY
+ IPC with socket sharing, using Unix domain sockets or named pipes (Windows)
+ Child processes
+ Thread pool
+ Signal handling
+ High resolution clock
+ Threading and synchronization primitives