Referencia del Archivo src/libmysql_std/include/my_handler.h

#include "my_base.h"
#include "m_ctype.h"
#include "myisampack.h"

Ir al código fuente de este archivo.

Clases
struct	st_HA_KEYSEG
'defines'
#define	get_key_length(length, key)
#define	get_key_length_rdonly(length, key)
#define	get_key_pack_length(length, length_pack, key)
#define	store_key_length_inc(key, length)
#define	get_rec_bits(bit_ptr, bit_ofs, bit_len)
#define	set_rec_bits(bits, bit_ptr, bit_ofs, bit_len)
#define	clr_rec_bits(bit_ptr, bit_ofs, bit_len)   set_rec_bits(0, bit_ptr, bit_ofs, bit_len)
'typedefs'
typedef struct st_HA_KEYSEG	HA_KEYSEG
Funciones
int	mi_compare_text (CHARSET_INFO *, uchar *, uint, uchar *, uint, my_bool, my_bool)
int	ha_key_cmp (register HA_KEYSEG *keyseg, register uchar *a, register uchar *b, uint key_length, uint nextflag, uint *diff_pos)
HA_KEYSEG *	ha_find_null (HA_KEYSEG *keyseg, uchar *a)

---

Documentación de los 'defines'

#define clr_rec_bits	(		bit_ptr,
			bit_ofs,
			bit_len
	)		set_rec_bits(0, bit_ptr, bit_ofs, bit_len)

#define get_key_length	(		length,
			key
	)

Valor:

{ if ((uchar) *(key) != 255) \
    length= (uint) (uchar) *((key)++); \
  else \
  { length=mi_uint2korr((key)+1); (key)+=3; } \
}

#define get_key_length_rdonly	(		length,
			key
	)

Valor:

{ if ((uchar) *(key) != 255) \
    length= ((uint) (uchar) *((key))); \
  else \
  { length=mi_uint2korr((key)+1); } \
}

#define get_key_pack_length	(		length,
			length_pack,
			key
	)

Valor:

{ if ((uchar) *(key) != 255) \
  { length= (uint) (uchar) *((key)++); length_pack=1; }\
  else \
  { length=mi_uint2korr((key)+1); (key)+=3; length_pack=3; } \
}

#define get_rec_bits	(		bit_ptr,
			bit_ofs,
			bit_len
	)

Valor:

(((((uint16) (bit_ptr)[1] << 8) | (uint16) (bit_ptr)[0]) >> (bit_ofs)) & \
   ((1 << (bit_len)) - 1))

#define set_rec_bits	(		bits,
			bit_ptr,
			bit_ofs,
			bit_len
	)

Valor:

{ \
  (bit_ptr)[0]= ((bit_ptr)[0] & ~(((1 << (bit_len)) - 1) << (bit_ofs))) | \
                ((bits) << (bit_ofs)); \
  if ((bit_ofs) + (bit_len) > 8) \
    (bit_ptr)[1]= ((bit_ptr)[1] & ~((1 << ((bit_len) - 8 + (bit_ofs))) - 1)) | \
                  ((bits) >> (8 - (bit_ofs))); \
}

#define store_key_length_inc	(		key,
			length
	)

Valor:

{ if ((length) < 255) \
  { *(key)++=(length); } \
  else \
  { *(key)=255; mi_int2store((key)+1,(length)); (key)+=3; } \
}

---

Documentación de los 'typedefs'

typedef struct st_HA_KEYSEG HA_KEYSEG

---

Documentación de las funciones

HA_KEYSEG* ha_find_null	(	HA_KEYSEG *	keyseg,
		uchar *	a
	)

int ha_key_cmp	(	register HA_KEYSEG *	keyseg,
		register uchar *	a,
		register uchar *	b,
		uint	key_length,
		uint	nextflag,
		uint *	diff_pos
	)

int mi_compare_text	(	CHARSET_INFO *	,
		uchar *	,
		uint	,
		uchar *	,
		uint	,
		my_bool	,
		my_bool
	)