tupmacs.h File Reference

#include "catalog/pg_type_d.h"

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Macros
#define	att_isnull(ATT, BITS)   (!((BITS)[(ATT) >> 3] & (1 << ((ATT) & 0x07))))
#define	fetchatt(A, T)   fetch_att(T, (A)->attbyval, (A)->attlen)
#define	fetch_att(T, attbyval, attlen)
#define	att_align_datum(cur_offset, attalign, attlen, attdatum)
#define	att_align_pointer(cur_offset, attalign, attlen, attptr)
#define	att_align_nominal(cur_offset, attalign)
#define	att_addlength_datum(cur_offset, attlen, attdatum)    att_addlength_pointer(cur_offset, attlen, DatumGetPointer(attdatum))
#define	att_addlength_pointer(cur_offset, attlen, attptr)
#define	store_att_byval(T, newdatum, attlen)

Macro Definition Documentation

att_addlength_datum

#define att_addlength_datum	(		cur_offset,
			attlen,
			attdatum
	)		att_addlength_pointer(cur_offset, attlen, DatumGetPointer(attdatum))

Definition at line 164 of file tupmacs.h.

att_addlength_pointer

#define att_addlength_pointer	(		cur_offset,
			attlen,
			attptr
	)

Value:

( \
    ((attlen) > 0) ? \
    ( \
        (cur_offset) + (attlen) \
    ) \
    : (((attlen) == -1) ? \
    ( \
        (cur_offset) + VARSIZE_ANY(attptr) \
    ) \
    : \
    ( \
        AssertMacro((attlen) == -2), \
        (cur_offset) + (strlen((char *) (attptr)) + 1) \
    )) \
)

Definition at line 176 of file tupmacs.h.

att_align_datum

#define att_align_datum	(		cur_offset,
			attalign,
			attlen,
			attdatum
	)

Value:

( \
    ((attlen) == -1 && VARATT_IS_SHORT(DatumGetPointer(attdatum))) ? \
    (uintptr_t) (cur_offset) : \
    att_align_nominal(cur_offset, attalign) \
)

Definition at line 105 of file tupmacs.h.

att_align_nominal

#define att_align_nominal	(		cur_offset,
			attalign
	)

Value:

( \
    ((attalign) == TYPALIGN_INT) ? INTALIGN(cur_offset) : \
     (((attalign) == TYPALIGN_CHAR) ? (uintptr_t) (cur_offset) : \
      (((attalign) == TYPALIGN_DOUBLE) ? DOUBLEALIGN(cur_offset) : \
       ( \
            AssertMacro((attalign) == TYPALIGN_SHORT), \
            SHORTALIGN(cur_offset) \
       ))) \
)

Definition at line 148 of file tupmacs.h.

att_align_pointer

#define att_align_pointer	(		cur_offset,
			attalign,
			attlen,
			attptr
	)

Value:

( \
    ((attlen) == -1 && VARATT_NOT_PAD_BYTE(attptr)) ? \
    (uintptr_t) (cur_offset) : \
    att_align_nominal(cur_offset, attalign) \
)

Definition at line 126 of file tupmacs.h.

att_isnull

#define att_isnull	(		ATT,
			BITS
	)		(!((BITS)[(ATT) >> 3] & (1 << ((ATT) & 0x07))))

Definition at line 25 of file tupmacs.h.

fetch_att

#define fetch_att	(		T,
			attbyval,
			attlen
	)

Value:

( \
    (attbyval) ? \
    ( \
        (attlen) == (int) sizeof(int32) ? \
            Int32GetDatum(*((int32 *)(T))) \
        : \
        ( \
            (attlen) == (int) sizeof(int16) ? \
                Int16GetDatum(*((int16 *)(T))) \
            : \
            ( \
                AssertMacro((attlen) == 1), \
                CharGetDatum(*((char *)(T))) \
            ) \
        ) \
    ) \
    : \
    PointerGetDatum((char *) (T)) \
)

Definition at line 75 of file tupmacs.h.

fetchatt

#define fetchatt	(		A,
			T
	)		fetch_att(T, (A)->attbyval, (A)->attlen)

Definition at line 41 of file tupmacs.h.

store_att_byval

#define store_att_byval	(		T,
			newdatum,
			attlen
	)

Value:

    do { \
        switch (attlen) \
        { \
            case sizeof(char): \
                *(char *) (T) = DatumGetChar(newdatum); \
                break; \
            case sizeof(int16): \
                *(int16 *) (T) = DatumGetInt16(newdatum); \
                break; \
            case sizeof(int32): \
                *(int32 *) (T) = DatumGetInt32(newdatum); \
                break; \
            default: \
                elog(ERROR, "unsupported byval length: %d", \
                     (int) (attlen)); \
                break; \
        } \
    } while (0)

Definition at line 226 of file tupmacs.h.