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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 MySQL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DRIZZLE_SERVER_FIELD_SHORT
#define DRIZZLE_SERVER_FIELD_SHORT
#include <drizzled/mysql_priv.h>
class Field_short :public Field_num {
public:
Field_short(uchar *ptr_arg, uint32_t len_arg, uchar *null_ptr_arg,
uchar null_bit_arg,
enum utype unireg_check_arg, const char *field_name_arg,
bool zero_arg, bool unsigned_arg)
:Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
unireg_check_arg, field_name_arg,
0, zero_arg,unsigned_arg)
{}
Field_short(uint32_t len_arg,bool maybe_null_arg, const char *field_name_arg,
bool unsigned_arg)
:Field_num((uchar*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0,0,
NONE, field_name_arg, 0, 0, unsigned_arg)
{}
enum Item_result result_type () const { return INT_RESULT; }
enum_field_types type() const { return DRIZZLE_TYPE_SHORT;}
enum ha_base_keytype key_type() const
{ return unsigned_flag ? HA_KEYTYPE_USHORT_INT : HA_KEYTYPE_SHORT_INT;}
int store(const char *to,uint length,CHARSET_INFO *charset);
int store(double nr);
int store(int64_t nr, bool unsigned_val);
int reset(void) { ptr[0]=ptr[1]=0; return 0; }
double val_real(void);
int64_t val_int(void);
String *val_str(String*,String *);
bool send_binary(Protocol *protocol);
int cmp(const uchar *,const uchar *);
void sort_string(uchar *buff,uint length);
uint32_t pack_length() const { return 2; }
void sql_type(String &str) const;
uint32_t max_display_length() { return 6; }
virtual uchar *pack(uchar* to, const uchar *from,
uint max_length __attribute__((unused)),
bool low_byte_first __attribute__((unused)))
{
int16_t val;
#ifdef WORDS_BIGENDIAN
if (table->s->db_low_byte_first)
val = sint2korr(from);
else
#endif
shortget(val, from);
#ifdef WORDS_BIGENDIAN
if (low_byte_first)
int2store(to, val);
else
#endif
shortstore(to, val);
return to + sizeof(val);
}
virtual const uchar *unpack(uchar* to, const uchar *from,
uint param_data __attribute__((unused)),
bool low_byte_first __attribute__((unused)))
{
int16_t val;
#ifdef WORDS_BIGENDIAN
if (low_byte_first)
val = sint2korr(from);
else
#endif
shortget(val, from);
#ifdef WORDS_BIGENDIAN
if (table->s->db_low_byte_first)
int2store(to, val);
else
#endif
shortstore(to, val);
return from + sizeof(val);
}
};
#endif
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