diff options
Diffstat (limited to 'src/include/utils/timestamp.h')
| -rw-r--r-- | src/include/utils/timestamp.h | 128 |
1 files changed, 77 insertions, 51 deletions
diff --git a/src/include/utils/timestamp.h b/src/include/utils/timestamp.h index b7c1d0dc3af..634d4402b1e 100644 --- a/src/include/utils/timestamp.h +++ b/src/include/utils/timestamp.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: timestamp.h,v 1.5 2000/06/08 22:37:58 momjian Exp $ + * $Id: timestamp.h,v 1.6 2000/06/09 01:11:15 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -17,6 +17,9 @@ #include <math.h> #include <limits.h> +#include "fmgr.h" + + /* * Timestamp represents absolute time. * Interval represents delta time. Keep track of months (and years) @@ -38,6 +41,25 @@ typedef struct } Interval; +/* + * Macros for fmgr-callable functions. + * + * For Timestamp, we make use of the same support routines as for float8. + * Therefore Timestamp is pass-by-reference if and only if float8 is! + */ +#define DatumGetTimestamp(X) ((Timestamp) DatumGetFloat8(X)) +#define DatumGetIntervalP(X) ((Interval *) DatumGetPointer(X)) + +#define TimestampGetDatum(X) Float8GetDatum(X) +#define IntervalPGetDatum(X) PointerGetDatum(X) + +#define PG_GETARG_TIMESTAMP(n) DatumGetTimestamp(PG_GETARG_DATUM(n)) +#define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n)) + +#define PG_RETURN_TIMESTAMP(x) return TimestampGetDatum(x) +#define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x) + + #ifdef NAN #define DT_INVALID (NAN) #else @@ -105,59 +127,63 @@ extern int timestamp_is_epoch(double j); * timestamp.c prototypes */ -extern Timestamp *timestamp_in(char *str); -extern char *timestamp_out(Timestamp *dt); -extern bool timestamp_eq(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_ne(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_lt(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_le(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_ge(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_gt(Timestamp *dt1, Timestamp *dt2); -extern bool timestamp_finite(Timestamp *timestamp); -extern int timestamp_cmp(Timestamp *dt1, Timestamp *dt2); -extern Timestamp *timestamp_smaller(Timestamp *dt1, Timestamp *dt2); -extern Timestamp *timestamp_larger(Timestamp *dt1, Timestamp *dt2); - -extern Interval *interval_in(char *str); -extern char *interval_out(Interval *span); -extern bool interval_eq(Interval *span1, Interval *span2); -extern bool interval_ne(Interval *span1, Interval *span2); -extern bool interval_lt(Interval *span1, Interval *span2); -extern bool interval_le(Interval *span1, Interval *span2); -extern bool interval_ge(Interval *span1, Interval *span2); -extern bool interval_gt(Interval *span1, Interval *span2); -extern bool interval_finite(Interval *span); -extern int interval_cmp(Interval *span1, Interval *span2); -extern Interval *interval_smaller(Interval *span1, Interval *span2); -extern Interval *interval_larger(Interval *span1, Interval *span2); - -extern text *timestamp_text(Timestamp *timestamp); -extern Timestamp *text_timestamp(text *str); -extern text *interval_text(Interval *interval); -extern Interval *text_interval(text *str); -extern Timestamp *timestamp_trunc(text *units, Timestamp *timestamp); -extern Interval *interval_trunc(text *units, Interval *interval); -extern float64 timestamp_part(text *units, Timestamp *timestamp); -extern float64 interval_part(text *units, Interval *interval); -extern text *timestamp_zone(text *zone, Timestamp *timestamp); - -extern Interval *interval_um(Interval *span); -extern Interval *interval_pl(Interval *span1, Interval *span2); -extern Interval *interval_mi(Interval *span1, Interval *span2); -extern Interval *interval_mul(Interval *span1, float8 *factor); -extern Interval *mul_d_interval(float8 *factor, Interval *span1); -extern Interval *interval_div(Interval *span1, float8 *factor); - -extern Interval *timestamp_mi(Timestamp *dt1, Timestamp *dt2); -extern Timestamp *timestamp_pl_span(Timestamp *dt, Interval *span); -extern Timestamp *timestamp_mi_span(Timestamp *dt, Interval *span); -extern Interval *timestamp_age(Timestamp *dt1, Timestamp *dt2); -extern bool overlaps_timestamp(Timestamp *dt1, Timestamp *dt2, Timestamp *dt3, Timestamp *dt4); +extern Datum timestamp_in(PG_FUNCTION_ARGS); +extern Datum timestamp_out(PG_FUNCTION_ARGS); +extern Datum timestamp_eq(PG_FUNCTION_ARGS); +extern Datum timestamp_ne(PG_FUNCTION_ARGS); +extern Datum timestamp_lt(PG_FUNCTION_ARGS); +extern Datum timestamp_le(PG_FUNCTION_ARGS); +extern Datum timestamp_ge(PG_FUNCTION_ARGS); +extern Datum timestamp_gt(PG_FUNCTION_ARGS); +extern Datum timestamp_finite(PG_FUNCTION_ARGS); +extern Datum timestamp_cmp(PG_FUNCTION_ARGS); +extern Datum timestamp_smaller(PG_FUNCTION_ARGS); +extern Datum timestamp_larger(PG_FUNCTION_ARGS); + +extern Datum interval_in(PG_FUNCTION_ARGS); +extern Datum interval_out(PG_FUNCTION_ARGS); +extern Datum interval_eq(PG_FUNCTION_ARGS); +extern Datum interval_ne(PG_FUNCTION_ARGS); +extern Datum interval_lt(PG_FUNCTION_ARGS); +extern Datum interval_le(PG_FUNCTION_ARGS); +extern Datum interval_ge(PG_FUNCTION_ARGS); +extern Datum interval_gt(PG_FUNCTION_ARGS); +extern Datum interval_finite(PG_FUNCTION_ARGS); +extern Datum interval_cmp(PG_FUNCTION_ARGS); +extern Datum interval_smaller(PG_FUNCTION_ARGS); +extern Datum interval_larger(PG_FUNCTION_ARGS); + +extern Datum timestamp_text(PG_FUNCTION_ARGS); +extern Datum text_timestamp(PG_FUNCTION_ARGS); +extern Datum interval_text(PG_FUNCTION_ARGS); +extern Datum text_interval(PG_FUNCTION_ARGS); +extern Datum timestamp_trunc(PG_FUNCTION_ARGS); +extern Datum interval_trunc(PG_FUNCTION_ARGS); +extern Datum timestamp_part(PG_FUNCTION_ARGS); +extern Datum interval_part(PG_FUNCTION_ARGS); +extern Datum timestamp_zone(PG_FUNCTION_ARGS); + +extern Datum interval_um(PG_FUNCTION_ARGS); +extern Datum interval_pl(PG_FUNCTION_ARGS); +extern Datum interval_mi(PG_FUNCTION_ARGS); +extern Datum interval_mul(PG_FUNCTION_ARGS); +extern Datum mul_d_interval(PG_FUNCTION_ARGS); +extern Datum interval_div(PG_FUNCTION_ARGS); + +extern Datum timestamp_mi(PG_FUNCTION_ARGS); +extern Datum timestamp_pl_span(PG_FUNCTION_ARGS); +extern Datum timestamp_mi_span(PG_FUNCTION_ARGS); +extern Datum timestamp_age(PG_FUNCTION_ARGS); +extern Datum overlaps_timestamp(PG_FUNCTION_ARGS); + +extern Datum now(PG_FUNCTION_ARGS); + +/* Internal routines (not fmgr-callable) */ extern int tm2timestamp(struct tm * tm, double fsec, int *tzp, Timestamp *dt); -extern int timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, double *fsec, char **tzn); +extern int timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, + double *fsec, char **tzn); extern Timestamp SetTimestamp(Timestamp timestamp); -extern Timestamp *now(void); #endif /* TIMESTAMP_H */ |