支援多線程的 現成的 socket 通訊程式

http://www.hawksoft.com/hawknl/

HawkNL is a free, open source, game oriented network API released under the GNU Library General Public License (LGPL). HawkNL (NL) is a fairly low level API, a wrapper over Berkeley/Unix Sockets and Winsock. But NL also provides other features including support for many OSs, groups of sockets, socket statistics, high accuracy timer, CRC functions, macros to read and write data to packets with endian conversion, and support for multiple network transports. NL has been tested on Windows 9x/ME/NT/2000/XP/CE, Linux, Solaris, IRIX, AIX, BSDs, Mac OS. There are also the two high level APIs, HawkNLU (NLU) and HawkVoice, which are built on top of NL. It is NLU and HawkVoice that are most exciting, since they give developers portable, easy to use alternatives to the Microsoft DirectPlay (DPlay) and DirectPlay Voice APIs