LCOV - code coverage report
Current view: top level - src/include/utils - date.h (source / functions) Hit Total Coverage
Test: PostgreSQL 17devel Lines: 12 12 100.0 %
Date: 2024-04-27 01:11:30 Functions: 6 6 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * date.h
       4             :  *    Definitions for the SQL "date" and "time" types.
       5             :  *
       6             :  *
       7             :  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
       8             :  * Portions Copyright (c) 1994, Regents of the University of California
       9             :  *
      10             :  * src/include/utils/date.h
      11             :  *
      12             :  *-------------------------------------------------------------------------
      13             :  */
      14             : #ifndef DATE_H
      15             : #define DATE_H
      16             : 
      17             : #include <math.h>
      18             : 
      19             : #include "datatype/timestamp.h"
      20             : #include "fmgr.h"
      21             : #include "pgtime.h"
      22             : 
      23             : typedef int32 DateADT;
      24             : 
      25             : typedef int64 TimeADT;
      26             : 
      27             : typedef struct
      28             : {
      29             :     TimeADT     time;           /* all time units other than months and years */
      30             :     int32       zone;           /* numeric time zone, in seconds */
      31             : } TimeTzADT;
      32             : 
      33             : /*
      34             :  * Infinity and minus infinity must be the max and min values of DateADT.
      35             :  */
      36             : #define DATEVAL_NOBEGIN     ((DateADT) PG_INT32_MIN)
      37             : #define DATEVAL_NOEND       ((DateADT) PG_INT32_MAX)
      38             : 
      39             : #define DATE_NOBEGIN(j)     ((j) = DATEVAL_NOBEGIN)
      40             : #define DATE_IS_NOBEGIN(j)  ((j) == DATEVAL_NOBEGIN)
      41             : #define DATE_NOEND(j)       ((j) = DATEVAL_NOEND)
      42             : #define DATE_IS_NOEND(j)    ((j) == DATEVAL_NOEND)
      43             : #define DATE_NOT_FINITE(j)  (DATE_IS_NOBEGIN(j) || DATE_IS_NOEND(j))
      44             : 
      45             : #define MAX_TIME_PRECISION 6
      46             : 
      47             : /*
      48             :  * Functions for fmgr-callable functions.
      49             :  *
      50             :  * For TimeADT, we make use of the same support routines as for int64.
      51             :  * Therefore TimeADT is pass-by-reference if and only if int64 is!
      52             :  */
      53             : static inline DateADT
      54      245020 : DatumGetDateADT(Datum X)
      55             : {
      56      245020 :     return (DateADT) DatumGetInt32(X);
      57             : }
      58             : 
      59             : static inline TimeADT
      60      198058 : DatumGetTimeADT(Datum X)
      61             : {
      62      198058 :     return (TimeADT) DatumGetInt64(X);
      63             : }
      64             : 
      65             : static inline TimeTzADT *
      66      136992 : DatumGetTimeTzADTP(Datum X)
      67             : {
      68      136992 :     return (TimeTzADT *) DatumGetPointer(X);
      69             : }
      70             : 
      71             : static inline Datum
      72       59196 : DateADTGetDatum(DateADT X)
      73             : {
      74       59196 :     return Int32GetDatum(X);
      75             : }
      76             : 
      77             : static inline Datum
      78      102178 : TimeADTGetDatum(TimeADT X)
      79             : {
      80      102178 :     return Int64GetDatum(X);
      81             : }
      82             : 
      83             : static inline Datum
      84        8292 : TimeTzADTPGetDatum(const TimeTzADT *X)
      85             : {
      86        8292 :     return PointerGetDatum(X);
      87             : }
      88             : 
      89             : #define PG_GETARG_DATEADT(n)     DatumGetDateADT(PG_GETARG_DATUM(n))
      90             : #define PG_GETARG_TIMEADT(n)     DatumGetTimeADT(PG_GETARG_DATUM(n))
      91             : #define PG_GETARG_TIMETZADT_P(n) DatumGetTimeTzADTP(PG_GETARG_DATUM(n))
      92             : 
      93             : #define PG_RETURN_DATEADT(x)     return DateADTGetDatum(x)
      94             : #define PG_RETURN_TIMEADT(x)     return TimeADTGetDatum(x)
      95             : #define PG_RETURN_TIMETZADT_P(x) return TimeTzADTPGetDatum(x)
      96             : 
      97             : 
      98             : /* date.c */
      99             : extern int32 anytime_typmod_check(bool istz, int32 typmod);
     100             : extern double date2timestamp_no_overflow(DateADT dateVal);
     101             : extern Timestamp date2timestamp_opt_overflow(DateADT dateVal, int *overflow);
     102             : extern TimestampTz date2timestamptz_opt_overflow(DateADT dateVal, int *overflow);
     103             : extern int32 date_cmp_timestamp_internal(DateADT dateVal, Timestamp dt2);
     104             : extern int32 date_cmp_timestamptz_internal(DateADT dateVal, TimestampTz dt2);
     105             : 
     106             : extern void EncodeSpecialDate(DateADT dt, char *str);
     107             : extern DateADT GetSQLCurrentDate(void);
     108             : extern TimeTzADT *GetSQLCurrentTime(int32 typmod);
     109             : extern TimeADT GetSQLLocalTime(int32 typmod);
     110             : extern int  time2tm(TimeADT time, struct pg_tm *tm, fsec_t *fsec);
     111             : extern int  timetz2tm(TimeTzADT *time, struct pg_tm *tm, fsec_t *fsec, int *tzp);
     112             : extern int  tm2time(struct pg_tm *tm, fsec_t fsec, TimeADT *result);
     113             : extern int  tm2timetz(struct pg_tm *tm, fsec_t fsec, int tz, TimeTzADT *result);
     114             : extern bool time_overflows(int hour, int min, int sec, fsec_t fsec);
     115             : extern bool float_time_overflows(int hour, int min, double sec);
     116             : extern void AdjustTimeForTypmod(TimeADT *time, int32 typmod);
     117             : 
     118             : #endif                          /* DATE_H */

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