100644 blob ff1ec187a198eb785b9cafc2647da5ba10ee634f	BUILD
100644 blob b81a2538a896e81857af130b3e66281623018b9e	CMakeLists.txt
100644 blob 0286a777a6a417d6404028b8ff2a1af8e3f1fe70	Makefile
100644 blob af31efb158c809157e8d0166243dffeec4956d88	README.md
100644 blob f166bd9f5e6e0abfd1c15d9e4f7b79980fd072d9	greeter_callback_client.cc
100644 blob 408b52d685d3f0135940d195635aee272ab8fc60	greeter_callback_server.cc
040000 tree 6f0760c0ae9d47a2eae3aaf3fd54e132ecfc1e83	ostream
100644 blob cba83f736adcc325ffdbf03beeed5d2cdd324e67	util.cc
100644 blob 4c062a39bc124e6b3f195277212196a5ffad254b	util.h