UV_FS_FREE_PTR    802 src/win/fs.c       req->flags |= UV_FS_FREE_PTR;
UV_FS_FREE_PTR   1406 src/win/fs.c     req->flags |= UV_FS_FREE_PTR;
UV_FS_FREE_PTR   1966 src/win/fs.c     if (req->flags & UV_FS_FREE_PTR)