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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* 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; version 2 of the License.
*
* 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
*/
#pragma once
#include <drizzled/memory/sql_alloc.h>
#include <drizzled/sql_string.h>
namespace drizzled {
/**
* A class for quick copying data to fields
*/
class CopyField :public memory::SqlAlloc
{
/**
Convenience definition of a copy function returned by
get_copy_func.
*/
typedef void Copy_func(CopyField*);
Copy_func *get_copy_func(Field *to, Field *from);
public:
unsigned char *from_ptr;
unsigned char *to_ptr;
unsigned char *from_null_ptr;
unsigned char *to_null_ptr;
bool *null_row;
uint32_t from_bit;
uint32_t to_bit;
uint32_t from_length;
uint32_t to_length;
Field *from_field;
Field *to_field;
String tmp; // For items
CopyField() :
from_ptr(0),
to_ptr(0),
from_null_ptr(0),
to_null_ptr(0),
null_row(0),
from_bit(0),
to_bit(0),
from_length(0),
to_length(0),
from_field(0),
to_field(0)
{}
~CopyField()
{}
void set(Field *to,Field *from,bool save); // Field to field
void set(unsigned char *to,Field *from); // Field to string
void (*do_copy)(CopyField *);
void (*do_copy2)(CopyField *); // Used to handle null values
};
} /* namespace drizzled */
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