040000 tree 68005aeb630ba708bfd872eb7e8556de264872c9	balsa
040000 tree ac9bb2205ad08abb0fa17e755ec31a0ce5d1046b	common
040000 tree 2ddc39f30997e9bf359af7ca5a6fa80835dd476a	epoll_server
040000 tree a4bd6a08820f52855e95a22ab0215d840db703ff	http2
040000 tree fa57f7318778770fc67985ac785dcf5e98fa56e1	quic
040000 tree a614f7b34c14e76b292e4981d38278250d29341d	spdy