libfilezilla

libfilezilla is a free, open source C++ library, offering some basic functionality to build high-performing, platform-independent programs. Some of the highlights include:

• A typesafe, multi-threaded event system that's very simple to use yet extremely efficient
• Timers for periodic events
• A datetime class that not only tracks timestamp but also their accuracy, which simplifies dealing with timestamps originating from different sources
• Simple process handling for spawning child processes with redirected I/O