LFS thrift IDL

namespace cpp lfs namespace java lfs namespace perl lfs struct FileInfo {   1: i64 ID   2: i32 Size   3: i32 UsedSize   4: i32 ModifyTime   5: i32 CreateTime } struct  ReadBuf{     1: string data;     2: i64 count; } service LfsService {   i32 Initialize(1: string ns_addr)   i32 Close(1: i32 fd)   i32 Open(1: string fileName,2: i32 flags)     i32 Write(1: i32 fd,2: string data,3: i64 count)   ReadBuf Read(1: i32 fd)   FileInfo Fstat(1: i32 fd) //i64 SaveFile(1: string fileName,2: string localFile,3: i32 flag,4: string nsAddr) //i32 FetchFile(1: string localFile,2: string fileName,3: string nsAddr) }