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
#include <time.h>
-/* This is the time at which vfm was last invoked. */
-extern time_t last_vfm_invocation;
-
-/* This is the case that is to be filled in by input programs. */
-extern struct ccase *temp_case;
-
+struct ccase;
typedef struct write_case_data *write_case_data;
typedef int write_case_func (write_case_data);
\f
struct case_source
{
const struct case_source_class *class; /* Class. */
- void *aux; /* Auxiliary data. */
+ void *aux; /* Auxiliary data. */
};
/* A case source class. */
WRITE_CASE, if known, or -1 otherwise. */
int (*count) (const struct case_source *);
- /* Reads all the cases and calls WRITE_CASE passing the given
- AUX data for each one. */
- void (*read) (struct case_source *, write_case_func *, write_case_data);
+ /* Reads the cases one by one into C and for each one calls
+ WRITE_CASE passing the given AUX data. */
+ void (*read) (struct case_source *,
+ struct ccase *c,
+ write_case_func *write_case, write_case_data aux);
/* Destroys the source. */
void (*destroy) (struct case_source *);
};
-extern const struct case_source_class memory_source_class;
-extern const struct case_source_class disk_source_class;
-extern const struct case_source_class data_list_source_class;
+extern const struct case_source_class storage_source_class;
extern const struct case_source_class file_type_source_class;
extern const struct case_source_class input_program_source_class;
-extern const struct case_source_class get_source_class;
-extern const struct case_source_class import_source_class;
-extern const struct case_source_class sort_source_class;
+struct dictionary;
struct case_source *create_case_source (const struct case_source_class *,
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 case_list *memory_source_get_cases (const struct case_source *);
-void memory_source_set_cases (const struct case_source *,
- struct case_list *);
+
+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;
struct case_sink
{
const struct case_sink_class *class; /* Class. */
- void *aux; /* Auxiliary data. */
+ void *aux; /* Auxiliary data. */
+ size_t value_cnt; /* Number of `union value's in case. */
};
/* A case sink class. */
{
const char *name; /* Identifying name. */
- /* Creates the sink and opens it for writing. */
+ /* Opens the sink for writing. */
void (*open) (struct case_sink *);
/* Writes a case to the sink. */
- void (*write) (struct case_sink *, struct ccase *);
+ void (*write) (struct case_sink *, const struct ccase *);
/* 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 *);
};
-extern const struct case_sink_class memory_sink_class;
-extern const struct case_sink_class disk_sink_class;
-extern const struct case_sink_class sort_sink_class;
+extern const struct case_sink_class storage_sink_class;
+extern const struct case_sink_class null_sink_class;
-struct case_sink *create_case_sink (const struct case_sink_class *, void *);
+struct case_sink *create_case_sink (const struct case_sink_class *,
+ const struct dictionary *,
+ void *);
+void case_sink_open (struct case_sink *);
+void case_sink_write (struct case_sink *, const struct ccase *);
+void case_sink_destroy (struct case_sink *);
+void free_case_sink (struct case_sink *);
\f
/* Number of cases to lag. */
extern int n_lag;
-void procedure (void (*beginfunc) (void *aux),
- int (*procfunc) (struct ccase *curcase, void *aux),
- void (*endfunc) (void *aux),
- void *aux);
+void procedure (int (*proc_func) (struct ccase *, void *aux), void *aux);
+void procedure_with_splits (void (*begin_func) (void *aux),
+ int (*proc_func) (struct ccase *, void *aux),
+ void (*end_func) (void *aux),
+ void *aux);
struct ccase *lagged_case (int n_before);
-void compact_case (struct ccase *dest, const struct ccase *src);
-void write_active_file_to_disk (void);
-
-void process_active_file (void (*beginfunc) (void *),
- int (*casefunc) (struct ccase *curcase, void *),
- void (*endfunc) (void *),
- void *aux);
-void process_active_file_output_case (void);
+\f
+void multipass_procedure_with_splits (void (*) (const struct casefile *,
+ void *),
+ void *aux);
+\f
+time_t vfm_last_invocation (void);
#endif /* !vfm_h */
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