You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#if !vfm_h
#define vfm_h 1
struct case_source
{
const struct case_source_class *class; /* Class. */
- size_t value_cnt; /* Number of `union value's in case. */
void *aux; /* Auxiliary data. */
};
struct dictionary;
struct case_source *create_case_source (const struct case_source_class *,
- const struct dictionary *,
void *);
+void free_case_source (struct case_source *);
+
int case_source_is_complex (const struct case_source *);
int case_source_is_class (const struct case_source *,
const struct case_source_class *);
struct casefile *storage_source_get_casefile (struct case_source *);
+struct case_source *storage_source_create (struct casefile *);
\f
/* The replacement active file, to which cases are written. */
extern struct case_sink *vfm_sink;
{
const struct case_sink_class *class; /* Class. */
void *aux; /* Auxiliary data. */
-
- /* Cases written to a case sink belong to a dictionary, but
- their data is compacted to drop scratch variables. */
- const struct dictionary *dict; /* Dictionary for cases. */
- int *idx_to_fv; /* `dict' index -> case `data' index. */
size_t value_cnt; /* Number of `union value's in case. */
};
/* Closes and destroys the sink. */
void (*destroy) (struct case_sink *);
- /* Closes and destroys the sink and returns a source that can
- read back the cases that were written, perhaps transformed
- in some way. */
+ /* Closes the sink and returns a source that can read back
+ the cases that were written, perhaps transformed in some
+ way. The sink must still be separately destroyed by
+ calling destroy(). */
struct case_source *(*make_source) (struct case_sink *);
};