openlitespeed  1.4.41.src
About: OpenLiteSpeed is a high-performance, lightweight HTTP server with optional HTTP/2 support (open sourve version of the commercial LiteSpeed Web Server). Sources.
  Fossies Dox: openlitespeed-1.4.41.src.tgz  ("inofficial" and yet experimental doxygen-generated source code documentation)  

openlitespeed Documentation