040000 tree 68005aeb630ba708bfd872eb7e8556de264872c9	balsa
040000 tree c6c8ce5df94a9e4ab2faf3adcb1dd97d66470d11	common
040000 tree 2ddc39f30997e9bf359af7ca5a6fa80835dd476a	epoll_server
040000 tree a4bd6a08820f52855e95a22ab0215d840db703ff	http2
040000 tree f372eb04639a744464f4b255bbb83e2692cec26d	quic
040000 tree 9f2da1f47fa3f67b58225a5e3c4a8f1373d1e847	spdy