httpserver
    |----bin
    |     |----config.c
    |     |----congig.h
    |     |----epoll.c
    |     |----epoll.h
    |     |----http.c
    |     |----http.h
    |     |----http_request.c
    |     |----http_request.h
    |     |----thread.c
    |     |----thread.h
    |     \----Makefile
    |----docroot
    |     \----index.html
    \----config
          \http.conf