H5O_layout_t layout; /* data layout */
hbool_t checked_filters;/* TRUE if dataset passes can_apply check */
/* Cache some frequently accessed values from the DCPL */
H5O_efl_t efl; /* External file list information */
H5D_alloc_time_t alloc_time; /* Dataset allocation time */
H5D_fill_time_t fill_time; /* Dataset fill value writing time */
H5O_fill_t fill; /* Dataset fill value information */
/* Buffered/cached information for types of raw data storage*/
H5D_rdcdc_t contig; /* Information about contiguous data */
H5D_rdcc_t chunk; /* Information about chunked data */
/* Enumerated type for allocating dataset's storage */
H5D_ALLOC_CREATE, /* Dataset is being created */
H5D_ALLOC_OPEN, /* Dataset is being opened */
H5D_ALLOC_EXTEND, /* Dataset's dataspace is being extended */
H5D_ALLOC_WRITE /* Dataset is being extended */