syntax = "proto2"; package parkspace_proto; message database_config { required string db_ip=1; required int64 db_port=2; required string db_username=3; optional string db_passwd=4[default=""]; required string db_name=5; optional int64 db_conn_pool_size=6; } message garage_config { required int64 block_size=1;//每层独立区域块个数 required int64 terminal_size_in_block=2;//每个区域块包含终端数 required database_config db_config=3; }